2,070 results on '"herpetofauna"'
Search Results
2. Complex riparian habitats predict reptile and amphibian diversity
- Author
-
Bateman, Heather L. and Merritt, David M.
- Published
- 2020
- Full Text
- View/download PDF
3. Barcoding and traditional health practitioner perspectives are informative to monitor and conserve frogs and reptiles traded for traditional medicine in urban South Africa.
- Author
-
Phaka, Fortunate M., Netherlands, Edward C., Van Steenberge, Maarten, Verheyen, Erik, Sonet, Gontran, Hugé, Jean, du Preez, Louis H., and Vanhove, Maarten P. M.
- Subjects
- *
MEDICAL personnel , *WILDLIFE conservation , *TRADITIONAL medicine , *GENETIC barcoding , *HERPETOFAUNA - Abstract
Previous literature suggests that Indigenous cultural practices, specifically traditional medicine, are commonplace among urban communities contrary to the general conception that such practices are restricted to rural societies. We reviewed previous literature for records of herptiles (frog and reptile species) sold by traditional health practitioners in urban South Africa, then used visual confirmation surveys, DNA barcoding and folk taxonomy to identify the herptile species that were on sale. Additionally, we interviewed 11 IsiZulu and SePedi speaking traditional health practitioners to document details of the collection and pricing of herptile specimens along with the practitioners' views of current conservation measures for traditional medicine markets. The 34 herptile species recorded in previous literature on traditional medicine markets included endangered and non‐native species. Spectrophotometry measurements of the DNA we extracted from the tissue of herptiles used in traditional medicine were an unreliable predictor of whether those extractions would be suitable for further experimental work. From our initial set of 111 tissue samples, 81 sequencing reactions were successful and 55 of those sequences had species‐level matches to COI reference sequences on the NCBI GenBank and/or BOLD databases. Molecular identification revealed that traditional health practitioners correctly labelled 77% of the samples that we successfully identified with DNA barcoding in this study. Our mixed methodology approach is useful for conservation planning as it updates knowledge of animal use in Indigenous remedies and can accurately identify species of high conservation priority. Furthermore, this study highlights the possibility of collaborative conservation planning with traditional health practitioners. [ABSTRACT FROM AUTHOR]
- Published
- 2025
- Full Text
- View/download PDF
4. Wildlife in Vernacular as a Means for an Inclusive Environmental Sector and Community Engagement in South Africa.
- Author
-
Phaka, Fortunate M.
- Subjects
SOCIAL integration ,ENVIRONMENTAL management ,NATIVE language ,HERPETOFAUNA ,ENVIRONMENTAL policy - Abstract
South Africa has contrasts between integrative environmental law and pre-democratic social exclusion in the environmental sector. Communicating wildlife in vernacular, sharing wildlife knowledge in vernacular languages and consideration of wildlife according to vernacular contexts, contributes to inclusive environmental management. This wildlife in vernacular approach is based on seven years of mixed methods research which culminates in this paper on reflections of the possibilities attendant to communicating wildlife in vernacular languages. Firstly, community-level research and knowledge-sharing sessions resulted in the creation of an IsiZulu language field guide for frogs compiled specifically for the Zululand community. Subsequently, online surveys, conversational interviews, literature reviews, and DNA barcoding were used to expand on the studies of Indigenous cultural perspectives on herptiles (frogs and reptiles). Through this work, perspectives that are generally excluded from environmental decision making are revealed and capacity building for environmental management becomes linguistically accessible. This article discusses the untapped potential of often overlooked wildlife (frogs and reptiles) in marginalized vernacular languages and ways to achieve the largely unrealized environmental policy ambitions of being inclusive of all forms of knowledge, considerate of all perceptions of wildlife and affording everyone an opportunity to participate in environmental management regardless of their socioeconomic background. KEY POLICY HIGHLIGHTS Marginalized Indigenous cultural perspectives have conservation value. South African legislation provides for inclusion of cultural practices in environmental management. Communicating wildlife in vernacular increases social inclusion and community engagement in environmental management. [ABSTRACT FROM AUTHOR]
- Published
- 2025
- Full Text
- View/download PDF
5. Diversity patterns of herpetofauna communities along a habitat alteration gradient in an Afrotropical large wetland – a test of the Intermediate Disturbance Hypothesis.
- Author
-
Behangana, Mathias, Milembe, Fionah, Kibuule, Micheal, Byaruhanga, Achilles, and Luiselli, Luca
- Subjects
- *
BIOTIC communities , *ECOLOGICAL impact , *WETLAND restoration , *SPECIES diversity , *WETLAND biodiversity , *WETLANDS - Abstract
Whilst wetlands are vital ecosystems supporting natural cycles and biodiversity, intensive agricultural practices and land use have led to widespread degradation, particularly in tropical Africa. In Uganda's 'cattle corridor', an agro-pastoral landscape stretching across 84 000 km2, natural wetlands have been largely destroyed, and their degradation exacerbated by climate change. The Rufuuha wetland, located in southwestern Uganda, provides a study model to examine biodiversity across different habitat sectors: (i) intact, (ii) degraded, and (iii) restored areas. We studied the amphibian and reptile communities in Rufuuha wetland, which had been heavily degraded due to local community activities, such as agriculture and cattle grazing, before restoration efforts began in 2015. We found significant differences in species richness and diversity between the three areas. While species richness was similar across the areas, diversity and evenness were highest in the intact sector, followed by the restored and degraded areas. There was no support for the Intermediate Disturbance Hypothesis, whereas evenness clearly detected changes in the community structure of herpetofauna along the habitat gradient that species richness did not. Amphibians were well-represented in the survey, showing clear patterns related to habitat quality, while reptile sampling was less comprehensive. Our study demonstrates that restoration efforts can positively impact biodiversity in Afrotropical wetlands. However, it is not yet clear whether the same biodiversity levels as in the intact areas can be reached also in the restored areas. Further studies, particularly on reptiles, are needed to better understand the full ecological impacts of habitat restoration in this region. [ABSTRACT FROM AUTHOR]
- Published
- 2025
- Full Text
- View/download PDF
6. The Richness, Similarity, and Conservation Status of the Herpetofauna of the Balsas Basin Biogeographic Province of Mexico.
- Author
-
Lemos-Espinal, Julio A. and Smith, Geoffrey R.
- Subjects
- *
REPTILE diversity , *AMPHIBIAN diversity , *NATURE conservation , *HERPETOFAUNA , *ENDEMIC species , *AMPHIBIANS - Abstract
The Balsas Basin (BB) is a biogeographic province in south-central Mexico that straddles the Mexican Transition Zone and the Neotropical region. We provide a list of the amphibian and reptile species of the BB based on a detailed review and update of recent species lists of its constituent states. The BB is home to 51 native amphibian and 155 native reptile species, which represent 14.7% of the herpetofauna of Mexico. No amphibian and six reptile species are endemic to the BB. Six species of amphibians and seven of reptiles are categorized as being of conservation concern status (vulnerable, endangered, or critically endangered) on the International Union for Conservation of Nature's (IUCN) Red List. The main threat these species face is habitat loss due to urbanization, agriculture, and pollution. The herpetofauna of the BB shows significant overlap with neighboring provinces. The composition of amphibian species in the BB is closest to that of the Pacific Lowlands, whereas the composition of reptile species is closest to the Sierra Madre del Sur and the Transvolcanic Belt. These findings suggest that while the BB supports significant amphibian and reptile diversity, its conservation importance may be limited due to the low levels of endemism and the relatively small proportion of species at risk. [ABSTRACT FROM AUTHOR]
- Published
- 2025
- Full Text
- View/download PDF
7. Checklist of the herpetofauna in an area of the Cerrado Biome, Central Brazil, under strong mining pressure.
- Author
-
Marra Santos, Fidélis Júnio
- Subjects
CERRADOS ,HERPETOFAUNA ,RESCUE work ,BIOMES ,SPECIES ,AMPHIBIANS - Abstract
Copyright of Journal of Wildlife & Biodiversity (JWB) is the property of Arak University and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2025
- Full Text
- View/download PDF
8. How many reptile and amphibian species are in Uganda, and why it matters for global biodiversity conservation.
- Author
-
Hughes, Daniel F. and Behangana, Mathias
- Subjects
SPECIES diversity ,NUMBERS of species ,ENDANGERED species ,HERPETOFAUNA ,AMPHIBIANS ,BIODIVERSITY conservation - Abstract
Biodiversity is unevenly distributed across the globe. Regional differences in biodiversity impact conservation through the allocation of financial resources, development of infrastructure, and public attention. Such resources are often prioritized to areas that are in more need than others. However, reasons for deciding which locations are more deserving are derived from an accurate knowledge of the number and composition of species that occur in each region. Regional differences in biodiversity, however, can reflect differences in the source of information consulted, rather than bona fide differences between areas. As a result, conservation resources may not be directed to regions in proportion to their actual need, especially if there is no consensus among sources of information. Here, we compared major sources of information on species of reptiles and amphibians that occur in Uganda, Africa. We found that none of the sources agreed on the total number, nor composition, of species in the country, with estimates for amphibians ranging more widely than those for reptiles. Notably, sources with similar species richness differed in species composition, which had an impact on the number of threatened species in the country. These results for a conspicuous group of vertebrates suggest that lesser-known groups are also likely misrepresented in sources, especially in other underexplored regions of tropical Africa. We discuss the implications for biodiversity conservation that are derived from inaccurate species lists that are commonly used by agencies, scientists, and practitioners. We argue that more critical evaluations of biodiversity resources, in addition to greater capacity building for field programs, taxonomy, and museum collections, will be essential to ensure that resources are allocated to regions that need them the most. [ABSTRACT FROM AUTHOR]
- Published
- 2025
- Full Text
- View/download PDF
9. Landscape predictors are more important than local factors in determining multiple dimensions of amphibian and reptile diversity in shaded cocoa agroforests.
- Author
-
Cervantes-López, Martín de Jesús, Alves-Ferreira, Gabriela, and Morante-Filho, José Carlos
- Abstract
Context: High rates of deforestation have prompted discussions on the use of agricultural systems for biodiversity conservation. Although agroforests are recognized as supplementary habitats for many species, it is still unclear whether this agricultural system can maintain multiple dimensions of species diversity. Objectives: We investigated the impact of landscape and local factors on the taxonomic, functional and phylogenetic richness and diversity of the herpetofauna in 30 cocoa agroforests located in three different regions of the Atlantic Forest. Methods: We used Hill's numbers in orders 0 and 1 to estimate the richness and diversity of each dimension of amphibian and reptile communities. Using model selection approach, we evaluate the influence of landscape and local factors on the different dimensions of diversity of both groups. Results: For amphibians, we observed that pasture cover positively affects taxonomic richness and diversity, as well as phylogenetic richness. In contrast, forest edge density and number of forest fragments negatively affect richness and functional diversity, respectively. We also observed that the region with high forest cover exhibited lower amphibian functional richness. For reptiles, we found that forest cover and edge density positively affect species richness. We also noted that forest cover and edge density positively affect phylogenetic richness and diversity, respectively. Regarding local factors, only humidity positively affected functional richness and diversity, while temperature had a negative effect on reptile functional richness. Conclusions: Our study showed that the landscape context in which cocoa agroforests are located modulates the ability of this agricultural system to harbor multiple dimensions of amphibian and reptile diversity in human-modified landscapes. [ABSTRACT FROM AUTHOR]
- Published
- 2025
- Full Text
- View/download PDF
10. First record of microplastic contamination in adult endemic amazonian anuran species
- Author
-
Maria Luiza Cunha e Souza-Ferreira, Adrian José Oliveira dos Reis, Erikson Bruno Loseiro Ferreira, Jessica Dipold, Anderson Z. Freitas, Niklaus U. Wetter, Verônica Regina Lobato de Oliveira-Bahia, and Thiago Bernardi Vieira
- Subjects
Herpetofauna ,Plastic ,Polymers ,Frogs ,Microhabitat ,Medicine ,Science - Abstract
Abstract The microplastics (MPs), due to their high dispersion and bioaccumulation rates, have been identified in various animal groups, such as anuran amphibians during both larval and adult stages. However, current studies on adult anuran amphibians focus on assessing only one exposure route, the digestive system, while other routes remain underestimated. Therefore, this present study aimed to evaluate the degree of contamination in the digestive, respiratory, and integumentary systems, in situ, of two endemic Amazonian adult anuran species (Physalaemus ephippifer and Boana multifasciata). From this, we identified and characterized microplastic particles for each exposure route, assessed the effects of morphometric measures on the total MP contamination level and in the gastrointestinal tract (GIT). Additionally, we determined different contamination indices and how they vary according to species and systems. Based on our data, the digestive and integumentary exposure routes showed the highest contamination levels for both species. Additionally, variations in MP contamination levels indicated that P. ephippifer had a higher level of MP contamination. Thus, this study provides the first evidence of microplastic exposure through respiratory and integumentary routes in adult anurans in situ, and it is the first to identify MP contamination in terrestrial biomonitors in the Amazon.
- Published
- 2025
- Full Text
- View/download PDF
11. Using life history to predict outcomes of conservation translocations of herpetofauna.
- Author
-
Parker, M.R. and Fitzgerald, L.A.
- Subjects
- *
LIFE history theory , *BIOLOGICAL invasions , *HERPETOFAUNA , *AMPHIBIANS , *REPTILES - Abstract
Suites of coevolved traits related to reproduction and demography enable species to persist in the face of environmental change. In the case of biological invasions, the suite of life history traits, “life history strategies,” can be linked to successful establishment after an introduction. Conservation translocations share many similarities with biological invasions, yet studies examining the relationship between life history and translocation outcome are scarce. We collected data on key life history traits for all herpetofauna profiled in the IUCN Global Conservation Translocation Perspectives series to examine how life history can predict outcomes and difficulties of conservation translocations. For reptiles, our model showed that age at maturity showed a significant positive association with higher probabilities of more successful outcomes, while increased clutch/litter size and lifespan predicted less successful outcomes. We found no relationship between any life history trait and translocation outcome for amphibians. Our results showed that difficulties with conservation translocations are related more to phylogeny than life history. Amphibian translocations faced more difficulties due to the physical environment of release sites, but reptile translocations experienced more socio‐political difficulties. These relationships provide important insights for conservation practitioners that can be used in the feasibility and planning stages of translocations to anticipate and avoid challenges facing this complex and increasingly common form of conservation intervention. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
12. Management of invasive iguanas mitigates deleterious impacts on an imperiled tortoise.
- Author
-
McKnight, Sean L., Johnson, Steven A., MacKenzie, Darryl, Acevedo, Miguel A., and Kluever, Bryan M.
- Subjects
- *
INTRODUCED species , *TESTUDINIDAE , *HERPETOFAUNA , *REPTILES , *SPECIES - Abstract
Invasive species are a major driver in the global decline of biodiversity. Invasive herpetofauna cause ecological harm through different mechanisms that vary in scope and severity, and Florida boasts more established nonnative herpetofauna species than any other region in the world. There, black spiny-tailed iguanas (Ctenosaura similis) are one of several large invasive reptiles known to occupy the burrows of the imperiled, native gopher tortoise (Gopherus polyphemus) and may even exclude tortoises from their burrows. To test the hypothesis that iguanas exclude tortoises from their burrows and evaluate effectiveness of iguana management, we conducted a field study on Gasparilla Island, Florida, USA. We used a burrow scope to estimate occupancy of each species within tortoise burrows at sites with and without sustained iguana removal efforts and modelled co-occurrence patterns between the two species. We used two-species occupancy analyses to test three predictions relating to gopher tortoise burrow use; 1) that tortoise occupancy within burrows would be lower given the presence of iguanas, 2) that iguana occupancy would be positively associated and tortoise occupancy would be negatively associated with the presence of iguana sidetunnels within a tortoise burrow, and 3) that iguana occupancy would be lower and tortoise occupancy would be higher at sites with ongoing iguana removal. Our results support the hypothesis that gopher tortoises are less likely to utilize burrows that are or have been utilized by black spiny-tailed iguanas. We estimated the probability of tortoise occupancy conditional on iguana presence to be 63% lower than tortoise occupancy conditional on iguana absence. Our results also show that sustained iguana removal is likely effective at reducing iguana occupancy of tortoise burrows, as the probability of iguana occupancy was 72% lower where iguanas are actively managed. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
13. Efecto de las plantaciones forestales no nativas de pinos y eucaliptos en los vertebrados terrestres: Una revisión descriptiva sobre los trabajos realizados en la Argentina.
- Author
-
SCHAAF, ALEJANDRO A., RIOJA, JUAN M. NADALINO, REPPUCCI, JUAN I., and RUGGERA, ROMÁN A.
- Subjects
- *
PUBLISHED articles , *ECOLOGICAL regions , *PLANTATIONS , *HERPETOFAUNA , *VERTEBRATES , *EUCALYPTUS - Abstract
Monospecific plantations with non-native trees increased in recent decades in different regions around the world. In particular, in Argentina, this type of production is being encouraged, causing a replacement of the native landscape and potentially affecting different groups of animals. For this reason, we conducted a literature review of what is known, and the gaps in information, on the effects of non-native pine and eucalyptus plantations on terrestrial vertebrates in different ecoregions of Argentina. We found a total of 34 published articles, 48% of which focused specifically on the role of pine and eucalyptus plantations on vertebrates. Birds and medium and large terrestrial mammals were the most studied taxonomic groups, mainly in the Atlantic and Patagonian forests. Regarding the effects, the most reported were a decrease in richness, changes in species composition and reduced use of non-native plantations by different vertebrate groups. The type of plantation management, especially with regard to the conservation and connectivity with the native forest, would be key to reducing the negative impact on vertebrate species. Additionally, we found that there are still information gaps in certain ecoregions and vertebrate groups (e.g., herpetofauna, small mammals). Therefore, we suggest that this type of studies should be encouraged in different regions of the country, in order to make known the effects of this type of anthropic activity, as well as to guarantee the good management and conservation of the surrounding native environments, and the genetic flow of the associated biodiversity populations. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
14. Camera trap surveys characterize a snake community from a Chihuahuan Desert shortgrass prairie.
- Author
-
FIELDER, COREY M., RYBERG, WADE A., WALKUP, DANIELLE K., HIBBITTS, TOBY J., STEFFEN, KATIE, CRUMP, PAUL S., DEMERE, KRYSTA, and MARTIN, RUSSELL
- Subjects
- *
ENDANGERED ecosystems , *PRIVATE communities , *MAMMAL diversity , *HERPETOFAUNA , *DESERTS - Abstract
Chihuahuan Desert grasslands are ecologically diverse and considered among the most threatened ecosystems in North America, stretching from the southwestern United States toward San Luis Potosí, Mexico. These desert grasslands support a wide diversity of mammal, bird, and herpetofauna species, with the latter being among the least surveyed taxa within these ecosystems. Data on snake communities within desert grasslands are relatively sparse due to the difficulty in consistently detecting these secretive reptiles. Herein, we report the success of time-lapse-triggered camera trap arrays in documenting snake community structure within a desert shortgrass prairie ecosystem on private land in the Trans-Pecos Region of Texas in Presidio County. During 2020 and 2021, a total of 564 images of snakes were captured, with 268 of these being unique observations representing 15 species. Snakes were observed during every month the cameras were operational except for February and November 2020. Diversity indices were similar across cameras arrays, but frequency of occurrence of each species varied greatly. Camera trapping continues to play a pivotal role in characterizing squamate communities, and this study provides another example of how camera trapping can be successful at surveying snake communities on private lands within desert grassland ecosystems. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
15. The Herpetofauna of the Chihuahuan Desert Biogeographic Province of Mexico: Diversity, Similarity to Other Provinces, and Conservation Status.
- Author
-
Lemos-Espinal, Julio A., Smith, Geoffrey R., and McCain, Christy M.
- Subjects
- *
CORRIDORS (Ecology) , *REPTILE diversity , *NATIVE species , *NATURE conservation , *HERPETOFAUNA - Abstract
The Chihuahuan Desert biogeographic province in Mexico is the largest of the fourteen biogeographic provinces of the country. This biogeographic province hosts a diverse array of amphibian and reptile species, with 262 native species, including 53 amphibians and 209 reptiles, accounting for a significant portion of Mexico's total amphibian (~12%) and reptile diversity (~21%). The Zacatecana subprovince exhibits the highest concentration of species for both groups (89% and 50% of Chihuahuan Desert amphibians and reptiles, respectively), indicating its importance for biodiversity within the Chihuahuan Desert. Comparative analyses with neighboring biogeographic provinces reveal substantial species overlap (48–55%), particularly with the Sierra Madre Oriental, the Transvolcanic Belt, and the Sierra Madre Occidental. These findings suggest strong ecological connections and corridors facilitating species exchange among these regions. Conservation assessments highlight the vulnerability of many species in the Chihuahuan Desert, with a notable percentage listed in the International Union for Conservation of Nature's (IUCN) Red List (~12%) and higher percentages categorized by the Mexican government as at risk according to their conservation status and the Environmental Vulnerability Score (~40%). Threats primarily stem from habitat loss, pollution, and other anthropogenic factors. In conclusion, the Chihuahua Desert emerges as a biogeographic province of significant biological richness and valuable evolutionary history for amphibians and reptiles. Its conservation is imperative for safeguarding the distinctive species and ecosystems that characterize this desert biome. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
16. Amphibians and Reptiles of the Pacific Lowlands Biogeographic Province of Mexico: Diversity, Similarities, and Conservation.
- Author
-
Lemos-Espinal, Julio A. and Smith, Geoffrey R.
- Subjects
- *
TROPICAL dry forests , *AMPHIBIAN diversity , *REPTILE diversity , *NATIVE species , *INTRODUCED species - Abstract
The Pacific Lowlands (PL) of Mexico hosts a rich diversity of amphibians and reptiles, comprising 326 native species (76 amphibians and 250 reptiles) across 45 families. This region is significant from a biodiversity standpoint, accounting for 23.3% of Mexico's total amphibian and reptile species, with 30 species being endemic to the PL. Notably, the PL ranks sixth in amphibian and reptile diversity among Mexico's fourteen biogeographic provinces. The species composition indicates a complex biogeographic relationship for the province, which shares the highest percentages of species with the neighboring Transition Zone provinces, while also acting as a vital corridor for species adapted to varied environmental conditions. Despite its diversity, 24 species in the PL are of conservation concern, highlighting threats from habitat loss, urbanization, and the impacts of introduced species in the province. Our findings underscore the ecological significance of the PL and the urgent need for conservation efforts to protect its unique biodiversity. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
17. Local ecological knowledge reveals an undocumented population of Reeves' butterfly lizard (Leiolepis reevesii) in Zhuhai, China.
- Author
-
Hui, Michael Ka Yiu, Yeung, Ho Yuen, Leong, Aiko K. Y., Lan, Yuxin, Pan, Shufang, Sun, Zhengzheng, and Yang, Jian-Huan
- Subjects
- *
TRADITIONAL ecological knowledge , *CONSCIOUSNESS raising , *ECOLOGICAL surveys , *LOCAL knowledge , *FIELD research - Abstract
Though widespread and categorized as least concern by the IUCN Red List, Reeves's butterfly lizard (Leiolepis reevesii) is considered critically endangered in China. Up-to-date data are warranted to inform future assessments and conservation measures. Through local ecological knowledge surveys and corroborated by field surveys, we discovered an undocumented L. reevesii population on Qi'ao Island of Zhuhai City, Guangdong Province, China. This discovery is the first record of the species in the Pearl River Delta since the early 2010s and represents the only remaining population from the vicinity of its type locality. It was reported to be very rare on the island now and has been extirpated from most of its previous range due to overharvesting, habitat loss and degradation. Our findings also raised concerns about the erosion of local ecological knowledge among local communities. Urgent conservation action and education campaigns are required to prevent further declines and raise awareness of this important and threatened population. Through local ecological knowledge and field surveys, we discovered an undocumented Reeves's butterfly lizard (Leiolepis reevesii) population on Qi'ao Island of China, which is the first record in the Pearl River Delta since the early 2010s and represents the only remaining population from the vicinity of its type locality. However, it is reported to be very rare on the island now, urgent conservation action and education campaigns are required to prevent further declines. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
18. New records of rare herpetofauna species in Sinaloa, Mexico.
- Author
-
Alexis Castro-Bastidas, Héctor
- Subjects
WILDLIFE conservation ,ENDANGERED species ,BIODIVERSITY conservation ,POPULATION dynamics ,HERPETOFAUNA - Abstract
Copyright of Acta Zoologica Lilloana is the property of Fundacion Miguel Lillo and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2024
- Full Text
- View/download PDF
19. Primer registro de Oxyrhopus rhombifer bachmanni (Squamata: Dipsadidae) en el Parque Provincial Ischigualasto, San Juan, Argentina.
- Author
-
Valdez Ovallez, Franco M., Rodríguez Muñoz, Melina J., Gómez Alés, Rodrigo, Rafael Díaz, Pedro, Fabián Villafañe, Walter, del Milagro Pereyra Ontivero, Griselda Rocío, and Martínez, Tomás A.
- Subjects
NATURE reserves ,PARKS ,MAMMAL diversity ,HERPETOFAUNA ,NUMBERS of species ,AMPHIBIANS - Abstract
Copyright of Acta Zoologica Lilloana is the property of Fundacion Miguel Lillo and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2024
- Full Text
- View/download PDF
20. An updated checklist of snakes (Reptilia: Squamata) in northeastern India derived from a review of recent literature.
- Author
-
Basfore, Bijay, Kalita, Manab Jyoti, Sharma, Narayan, and Boro, Ananda Ram
- Subjects
EVIDENCE gaps ,REPTILES ,HERPETOFAUNA ,SQUAMATA ,AREA studies - Abstract
This paper reviews studies of the snakes of northeastern India published between 2001 and 2024 identified from searchable databases, covering diversity, range extension, distribution records, new genus, new species, redescription, rediscovery, and taxonomic revision. This analysis of the literature and publicly available information presents an updated checklist of 126 snake species representing 12 families and 46 genera, along with their distribution across states in northeastern India and their IUCN Red List status. The study also reveals a research gap in some northeastern states that provides opportunities for further regional studies. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
21. Folliculectomy for the treatment of pre-ovulatory follicular stasis in three illegally captured West Coast green geckos (Naultinus tuberculatus) to enable wild rehabilitation.
- Author
-
Gartrell, BD, Jolly, M, Cree, A, Short, E, and Hori, T
- Subjects
CRYPTOSPORIDIUM parvum ,SURGICAL site ,SURGICAL complications ,GECKOS ,HERPETOFAUNA ,OVARIAN follicle - Abstract
Case history: In 2023, the New Zealand Department of Conservation seized 63 endemic reptiles that were being held without a permit. This group included three adult female West Coast green geckos (Naultinus tuberculatus) that had been illegally removed from the wild 2 years earlier. They had been held in an outdoor enclosure with a pair of goldstripe geckos (Woodworthia chrysosiretica). Clinical findings: On physical examination, all three geckos had at least two soft palpable masses in the coelom. Repeated ultrasonographic examination over several months confirmed the diagnosis of pre-ovulatory follicular stasis (POFS) in each gecko, and in subsequent weeks, more ovarian follicles developed in each animal. Laboratory findings: All three geckos were negative on culture of cloacal swabs for Salmonella spp., and negative on PCR assay of a cloacal flush for Cryptosporidium spp., despite other reptiles in the seized group showing positive results for multiple Salmonella spp., and one other gecko being positive for Cryptosporidium parvum, subtype IIcA5G3. Treatment and outcome: For all three geckos, para-midline ventral coeliotomy was performed under general anaesthesia, and folliculectomy of degenerate ovarian follicles was performed. Post-operative complications were seen in all three animals, which developed suture-line infections following disruption of normal skin shedding and entrapment of shed keratin in the surgical sites. A second surgery was undertaken to remove impacted keratin and caseous inflammatory material from the surgical wounds of all three animals and buried sutures were placed to close the coelomic wounds. The geckos were treated with 20 mg/kg ceftazidime IM every second day for 2 weeks post-operatively. Subsequent ecdysis (skin shedding) occurred without complication and the geckos were released back to the wild 10 months after admission. Clinical relevance: The recommended treatment for POFS in reptiles is ovariectomy, which is not appropriate for wild animals. The use of folliculectomy to resolve preovulatory follicular stasis should be considered for animals where retaining reproductive ability is essential. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
22. Proposal on Species‐Specific Synergistic Conservation Measures for Critically Endangered Gharial (Gavialis gangeticus).
- Author
-
Dwivedi, Arvind Kumar and De, Kritish
- Subjects
SUSTAINABILITY ,PROTECTED areas ,HERPETOFAUNA ,DIGITAL technology ,INBREEDING - Abstract
The gharial (Gavialis gangeticus), a critically endangered freshwater reptile endemic to the Indian subcontinent, faces severe threats from various anthropogenic stressors. Despite positive conservation efforts, a holistic approach is essential for improved outcomes. This involves (1) identification of new conservation priority sites, (2) establishment of gharial populations outside protected areas, (3) interlinking ecosystem processes, (4) conducting census of gharial annually, (5) efficient use of digital technology, (6) adoption of best management practices to mitigate various threats, (7) assessment of inbreeding depression in gharial, (8) rescue and rehabilitation training for local communities, (9) interstate and trans‐boundary commission and (10) survey on socio‐economic status of local communities. Implementing the proposed synergistic measures will not only strengthen conservation efforts but also enhance the livelihoods of local communities, ensuring a sustainable future for this species. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
23. Broad-scale predictions of herpetofauna occupancy and colonization in an agriculturally dominated landscape.
- Author
-
Harris, Jonathan P., Harms, Tyler M., Kinkead, Karen E., Frese, Paul W., Delaney, David M., Buckardt, Emma M., and Dinsmore, Stephen J.
- Subjects
- *
COLONIZATION (Ecology) , *SOFT-shelled turtles , *HERPETOFAUNA , *FRAGMENTED landscapes , *AGRICULTURE - Abstract
Predictions of species occurrence allow land managers to focus conservation efforts on locations where species are most likely to occur. Such analyses are rare for herpetofauna compared to other taxa, despite increasing evidence that herptile populations are declining because of landcover change and habitat fragmentation. Our objective was to create predictions of occupancy and colonization probabilities for 15 herptiles of greatest conservation need in Iowa. From 2006–2014, we surveyed 295 properties throughout Iowa for herptile presence using timed visual-encounter surveys, coverboards, and aquatic traps. Data were analyzed using robust design occupancy modeling with landscape-level covariates. Occupancy ranged from 0.01 (95% CI = -0.01, 0.03) for prairie ringneck snake (Diadophis punctatus arnyi) to 0.90 (95% CI = 0.898, 0.904) for northern leopard frog (Lithobates pipiens). Occupancy for most species correlated to landscape features at the 1-km scale. General patterns of species' occupancy included negative effects of agricultural features and positive effects of water features on turtles and frogs. Colonization probabilities ranged from 0.007 (95% CI = 0.006, 0.008) for spiny softshell turtle (Apalone spinifera) to 0.82 (95% CI = 0.62, 1.0) for western fox snake (Pantherophis ramspotti). Colonization probabilities for most species were best explained by effects of water and grassland landscape features. Predictive models had strong support (AUC > 0.70) for six out of 15 species (40%), including all three turtles studied. Our results provide estimates of occupancy and colonization probabilities and spatial predictions of occurrence for herptiles of greatest conservation need across the state of Iowa. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
24. Recording potential predators of herpetofauna in southern Mexico using camera traps and realistic models.
- Author
-
García-Bañuelos, Paulina, Aguilar-López, José Luis, Ortiz-Lozada, Liliana, Pelayo-Martínez, Jaime, and Hernández-Dávila, Omar A.
- Subjects
- *
NATURE reserves , *ANIMAL aggression , *IONIZATION energy , *FOOD chains , *HERPETOFAUNA , *PREDATION - Abstract
Knowledge of biotic predator–prey interactions is essential for understanding the role of species in the food web; however, information on these interactions is scarce for most species. Our aim in this study was to gather information on the potential predators of two species of herpetofauna abundant in the rainforest they inhabit, the frog Craugastor loki and the snake Ninia sebae. For this, realistic models of the two species were placed, and monitored using camera traps, in 13 sites located in a forest fragment belonging to a private protected natural area in southern Veracruz in three seasons (dry, rainy and windy) in 2019. In addition, the temporality and seasonality of the events and some behaviours of the potential predators are described. The recorded events were classified into four categories: presence, interest, contact and aggression. For C. loki, 159 events of appearances of potential predators were identified (32 with interaction: 18 events of interest, 2 contact and 12 aggressions). The aggressions were carried out by the mammals Didelphis marsupialis and Peromyscus sp. In the case of N. sebae, 201 appearances of potential predators were identified (75 with interaction: 36 events of interest, 7 contact and 32 aggressions). The aggressions were carried out by 10 species (seven birds and three mammals). Bird predation events towards models of both species occurred during daytime while the attacks by mammals occurred at night. Agonistic behaviours included pecking, biting and urine marking, previously unknown. Events of each category were recorded every season. Our results indicate that C. loki and N. sebae may have more predators than were previously known, and suggest that these species can be an important food resource for different species of birds and mammals in the environments where they live. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
25. First Quaternary fossil record of a blind snake (Scolecophidia, Serpentes) from South America (Argentina).
- Author
-
Peralta, Matias Javier and Ferrero, Brenda Soledad
- Subjects
- *
FOSSILS , *HERPETOFAUNA , *SNAKES , *HOLOCENE Epoch , *VERTEBRAE - Abstract
We report and describe the first fossil of a blind snake (Scolecophidia, Serpentes) for Argentina. The fossil is a complete and isolated vertebra assigned to Epictia sp. (Leptotyphlopidae). Modern members of Leptotyphlopidae are common in South America, especially in Argentina. The fossil was recovered from the basal layer of an Early Holocene fluvial unit in Entre Ríos province, northeastern Argentina. In addition to its important contribution to the fossil record of South America, this scolecophidian specimen also represents one of the few fossils documented from the Southern Hemisphere. Furthermore, this study represents the first contribution to the knowledge of scolecophidian trunk vertebral morphology in Argentinian species. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
26. A review of the Late Miocene herpetofauna of the Keinar locality of Moldova.
- Author
-
Syromyatnikova, Elena and Redkozubov, Oleg
- Subjects
- *
NATRIX natrix , *FOSSIL reptiles , *HERPETOFAUNA , *PLIOCENE Epoch , *NEOGENE Period - Abstract
Small fossil amphibians and reptiles from the Late Miocene of the Keinar locality of Moldova are reviewed for the first time. The following taxa are described: Mioproteus caucasicus , Chelotriton sp., Latonia sp., Pelobates sp., Pelophylax sp., "Colubrinae" indet., Natrix sp., two Vipera spp. (" Vipera aspis complex" and "Oriental vipers complex"), and Squamata indet. Among them, Pelobates sp. exhibits the characters which occur in the Early–Late Miocene (presence of both pit-and-ridge and pustular sculptures of the frontoparietal bone) and in the Pliocene (short frontoparietal–squamosal contact) members of the genus; this combination is not observed in any other Pelobates species. The viperid snake of the " Vipera aspis complex" is recorded from Moldova for the first time. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
27. Scale of unregulated international trade in Australian reptiles and amphibians.
- Author
-
Chekunov, Sebastian, Stringham, Oliver, Toomes, Adam, Prowse, Thomas, and Cassey, Phillip
- Subjects
- *
ENDANGERED species , *WILD animal trade , *HERPETOFAUNA , *PET industry , *AMPHIBIANS ,CONVENTION on International Trade in Endangered Species of Wild Fauna & Flora (1973) - Abstract
Reptiles and amphibians are popular in the exotic pet trade, where Australian species are valued for their rarity and uniqueness. Despite a near‐complete ban on the export of Australian wildlife, smuggling and subsequent international trade frequently occur in an unregulated and unmonitored manner. In 2022, Australia listed over 100 squamates in Appendix III of the Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES) to better monitor this trade. We investigated current trade and assessed the value of this Australian CITES listing using web‐scraping methods to monitor the online pet trade in Australian reptiles and amphibians, with additional data from published papers, trade databases, and seizure records. Despite the export ban, we identified 170 endemic herpetofauna (reptile and amphibian) species in international trade, 33 of which were not recorded previously in the international market, including 6 newly recorded genera. Ninety‐two traded species were included in CITES appendices (59 added in 2022), but at least 78 other traded species remained unregulated. Among these, 5 of the 10 traded threatened species were unlisted, and we recommend they be considered for inclusion in CITES Appendix III. We also recommend the listing of all Diplodactylidae genera in Appendix III. Despite this family representing the greatest number of Australian species in trade, only one genus (of 7 traded) was included in the recent CITES amendments. Overall, a large number of Australian reptile and amphibian species are traded internationally and, although we acknowledge the value of Australia's recent CITES listing, we recommend the consideration of other taxa for similar inclusion in CITES. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
28. Kimboza, a Small Lowland Forest With an Outstanding Herpetofauna Diversity in East Africa.
- Author
-
Lyakurwa, John V., Loader, Simon P., Ngalason, Wilirk, Gumbs, Rikki, Ofori‐Boateng, Caleb, and Liedtke, H. Christoph
- Subjects
- *
COASTAL forests , *FOREST reserves , *ENDEMIC species , *HERPETOFAUNA , *NATURE reserves , *AMPHIBIANS - Abstract
The Eastern Arc Mountains (EAM) and Coastal forests of Tanzania are renowned for harboring large number of threatened and endemic vertebrate species, yet most of these areas have been partially studied. The Kimboza Nature Forest Reserve (KNFR) is a small forest which is in transition between the EAM and Coastal forests, and among the poorly surveyed areas for amphibians and reptiles. We conducted systematic surveys across the KNFR in 2012 and between 2020 and 2023 using a range of approaches with the aim of establishing a comprehensive and updated list of reptile and amphibian species and assess the contribution of EAM and Coastal forests to the KNFR's herpetofauna. We identified 77 species, 29 amphibians and 48 reptiles, substantially updating previous species lists. Three of these species (Kinyongia magomberae, Trachylepis boulengeri and Philothamnus macrops) represent range extensions from previously known ranges. Fourteen species are endemic to East Africa, 11 of them being restricted to Tanzania. These results make the KNFR the richest forest reserve for herpetofauna per square km in Tanzania, and most similar in its composition to the Coastal, rather than Eastern Arc forests. With the caveats concerning taxonomic uncertainties and the inequalities of sampling intensity across the region, this study shows that the KNFR is an important area that deserves conservation attention. The KNFR, like other Coastal forests, is under significant pressure from anthropogenic activities which call for an urgent action to protect this small but rich forest. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
29. Anfibios y reptiles de los matorrales de cactáceas del sur de Cuba
- Author
-
Irelis Bignotte-Giró and Ansel Fong G.
- Subjects
cuba suroriental ,ecorregiones ,herpetofauna ,inventarios de biodiversidad ,Ecology ,QH540-549.5 ,Zoology ,QL1-991 - Abstract
Los Matorrales de cactáceas del sur de Cuba constituyen una ecorregión que solo se encuentra dispersa en franjas y fragmentos pequeños asociados a climas secos costeros de esta isla, con un área inferior a 3000 km2. Su estado de conservación se clasifica como "Vulnerable" y se considera que la naturaleza peligra en su territorio, por lo que es indispensable la actualización del conocimiento de su biodiversidad para contribuir a su preservación. En este estudio se presenta el inventario de los anfibios y reptiles de esta ecorregión en la franja suroriental de la isla, confeccionado a partir de la revisión bibliográfica y de colecciones, así como de muestreos de campo a diferentes sitios del área de estudio entre los años 2015 y 2022. En los muestreos se utilizó la metodología de registros de encuentros visuales con búsqueda activa de los animales, tanto de forma visual como auditiva, realizando muestreos diurnos y nocturnos. Se registran nueve especies de anfibios y 61 especies de reptiles, con predominio de las familias Eleutherodactylidae y Anolidae, y de los géneros Eleutherodactylus y Anolis. El endemismo es alto, con 77.8% en anfibios y 78.7% en reptiles, 22 especies son conocidas solamente de esta área. Tres especies de anfibios y 11 de reptiles se consideran amenazadas en la Lista Roja de UICN, además de otras cinco clasificadas como “Casi amenazada”. Se seleccionaron 25 especies consideradas como de mayor interés para la conservación en base a su endemismo local y grado de amenaza, las que deberían recibir la mayor prioridad para lograr su preservación en el área de estudio. La combinación de alta riqueza específica, endemismo local y especies amenazadas de los dos grupos enfatizan la relevancia de esta ecorregión para la conservación en Cuba y el Caribe.
- Published
- 2024
- Full Text
- View/download PDF
30. Bluer in the city: urban male lizards exhibit more intense sexual coloration and lower parasite loads than non‐urban males.
- Author
-
GONZÁLEZ‐MORALES, Juan C., RIVERA‐REA, Jimena, SUÁREZ‐VARÓN, Gabriel, BASTIAANS, Elizabeth, and ZARZA, Heliot
- Subjects
- *
URBAN animals , *CITIES & towns , *HERPETOFAUNA , *NATURE reserves , *IMMUNE response - Abstract
Urbanization is a global phenomenon that involves the transformation of natural areas into urban spaces, thereby subjecting organisms to new selective pressures including a wide variety of pollutants and changes in intra‐ and interspecific interactions. Considering that projections indicate that by the year 2050, 65% of the human population will live in urban areas and that urbanization is a phenomenon with an upward pattern, identifying these phenotypic traits is vital to implementing conservation and management plans for urban fauna. The urban environment may exert different selective pressures on sexually selected traits than more pristine environments, a phenomenon which has been well studied in birds but is less understood in other vertebrates such as lizards, although they are common inhabitants of urban environments. Here, we compare sexual coloration, parasite load, and immune response in
Sceloporus torquatus lizards in urban and non‐urban environments of Central Mexico. Our study shows that sexual coloration is more saturated (bluer) in male lizards from urban environments, while UV chroma was higher in non‐urban lizards. The average parasite load is lower in urban lizards than in non‐urban lizards, and we found a negative relationship between hemoparasite count and sexual coloration in male lizards from non‐urban environments but not in male lizards from urban environments. Additionally, non‐urban lizards exhibited a higher immune response. In female lizards, sexual coloration differed significantly between urban and non‐urban environments, but parasite load and immune response did not differ. These results may be useful to improve herpetofauna conservation plans in urbanized environments. [ABSTRACT FROM AUTHOR]- Published
- 2024
- Full Text
- View/download PDF
31. New diverse amphibian and reptile assemblages from the late Neogene of northern Greece provide novel insights into the emergence of extant herpetofaunas of the southern Balkans.
- Author
-
Georgalis, Georgios L., Villa, Andrea, Ivanov, Martin, and Delfino, Massimo
- Subjects
- *
FOSSIL reptiles , *AMPHIBIANS , *NEOGENE Period , *HERPETOFAUNA - Abstract
We here describe abundant new fossil material of amphibians and reptiles from different late Neogene localities of northern Greece: the Early Pliocene (MN 14) of Spilia 0, Spilia 1, and Spilia 2; the Early Pliocene (MN 15) of Spilia 3, Spilia 4, Spilia 5, and Vevi; and the Late Miocene or Pliocene of Chalicorrema and Rema Marmara. These new late Neogene herpetofaunas are highly diverse, documenting a considerably rich herpetofauna allowing the identification of at least two salamander, seven frog, two turtle, seven lizard, and eight snake taxa. Salamanders are represented by the salamandrid genera Ommatotriton and Ichthyosaura. Frogs are represented by the bombinatorid Bombina, the discoglossids Latonia cf. ragei and Latonia sp., the pelobatid Pelobates aff. praefuscus and Pelobates sp., the ranids Pelophylax and Rana cf. dalmatina, the hylid Hyla gr. arborea, and the bufonid Bufotes gr. viridis. Turtles are represented by the emydid Emys and an indeterminate geoemydid. Lizards are represented by the scincid Ophiomorus, two lacertids (one of which potentially pertaining to Lacerta), amphisbaenians, agamids, the anguid Pseudopus, and a potential varanid. Snakes are represented by the erycid Eryx, the natricid Natrix aff. rudabanyaensis, a small-sized elapid, an "Oriental viper", the colubriforms Periergophis and Paraxenophis, as well as two further distinct but still indeterminate morphotypes of colubriforms. For the material from Spilia tentatively referred to Ommatotriton, this is only the third occurrence in the fossil record globally. The new material of Ichthyosaura and Bombina mark the first documentation of these genera in the Greek fossil record. Abundant cranial and postcranial material from Spilia is tentatively referred to Latonia ragei, a taxon previously known from the Early Miocene of Western Europe. The new record of Pelobates represents the oldest documented occurrences of the genus in the Greek fossil record. Interestingly, the Pelobates from Spilia bears much resemblance to an extinct taxon, Pelobates aff. praefuscus, which is otherwise known from the Late Miocene of the Caucasus, and not to the extant species that currently inhabits the area. The identification of Pelophylax and Rana adds to the rather poor Neogene record of ranids from Greece. Particularly for the case of Rana cf. dalmatina from Spilia 4, this corresponds to the only documented occurrence of this extant taxon in the Greek fossil record. Similarly, the identification of Hyla gr. arborea in Spilia 1, Spilia 3, and Spilia 4, marks only the third documented occurrence of this genus in the Greek fossil record. The Bufotes material from Spilia 1, Spilia 3, and Spilia 4 represents the first documented fossil occurrence of the extant Bufotes viridis complex in Greece. The material of Emys gr. orbicularis from Vevi marks the only known pre-Quaternary record of the genus in Greece and one of the only few Neogene members of the genus known from Europe. The scincid Ophiomorus is identified in Spilia 4, known from several cranial and postcranial remains, well outside the extant range of the genus. Practically, the Spilia Ophiomorus is only the fourth known fossil occurrence of this extant genus globally and also represents one of its oldest known occurrences. Material from Spilia 1 and Spilia 3 is tentatively referred to cf. Lacerta sp., and this would mark the first known occurrence of this emblematic extant genus in the Greek fossil record, denoting the presence of the genus since at least the Early Pliocene. The new amphisbaenian specimens from Spilia 4 add to the recently described single vertebra from the same locality, and represent the youngest occurrence of amphisbaenians from continental Eastern Europe. The new agamid material from Vevi and Chalicorrema add substantially to the record of this group, which was in Greece so far known exclusively from the latest Miocene/earliest Pliocene of Maramena. A similarly important addition is the record of Pseudopus from Spilia 4, as this genus had been known in the Greek fossil record only from a very few localities. The potential varanid from Spilia represents one of the few Pliocene occurrences of this group in Europe. We identify Natrix aff. rudabanyaensis among the material from Spilia 0, Spilia 4, and Vevi, adding to the previously known record of this taxon from Maramena, however, its precise species level assignment should await a revision of Neogene European Natrix spp. The find of a small elapid from Spilia 4 represents the youngest occurrence of a coral snake from Europe, extending their statigraphic range up to the Early Pliocene (MN 14). Periergophis and Paraxenophis, two bizarre snakes, so far exclusively known from their type locality in Maramena, could be also present here, even if tentatively identified. Most notably, the new material from these localities comprises forms that are now extinct (e.g., Periergophis and Paraxenophis) or extirpated from Europe (e.g., Latonia, Varanidae, Elapidae) but at the same time also loudly attests the emergence of the extant genera that dominate the extant herpetofaunas of Greece (Ichthyosaura, Bombina, Pelobates, Pelophylax, Rana, Hyla, Bufotes, Emys, Ophiomorus, Lacerta, Pseudopus, Eryx, and Natrix), for some of which their fossil record is documented here for the first time in the area. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
32. Ten Principles From Evolutionary Ecology for the Effective Conservation of Reptiles and Amphibians.
- Author
-
Brooks, George C., Chandler, Houston C., Haas, Carola A., and Kindsvater, Holly K.
- Subjects
- *
LIFE cycles (Biology) , *ENDANGERED species , *HERPETOFAUNA , *REPTILES , *CONSERVATIONISTS , *AMPHIBIANS - Abstract
Reptiles and amphibians are disproportionately threatened among vertebrates but are lagging behind other vertebrate taxa with regards to conservation plans. As the need to triage data-limited species becomes ever more necessary, calls for conservation priorities to be based on evolutionary considerations are increasing. Although there now exists a large body of literature documenting insight that theory can provide to conservation, complex life cycles of many reptiles and amphibians prevents a simple transference of management principles derived from other vertebrate taxa. Thus, there is a need for a set of principles that acknowledges the unique ecology and diversity of herpetofauna. Here we present 10 key principles from evolutionary ecology that can provide rules of thumb to guide management of reptiles and amphibians. Broadly, we identify five landscape-related principles and five life-history–related principles that account for novel ways in which reptiles and amphibians are shaped by the environments they inhabit. When considered in combination they can be useful in providing a holistic view of a species' status. We hope this paper facilitates identification of species that are in critical need of management intervention and provides a guide for managers and conservation scientists to proactively mitigate extinction risk. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
33. New distribution record and habitat of the Mesoamerican Drunken Toad, Rhinophrynus dorsalis Duméril and Bibron, 1841, in Honduras.
- Author
-
Andino-Mazariegos, Anthonie, Mejía, Ninfa, Rene Serrano, José, Mérida, Julio E., and Cruz, Gustavo A.
- Subjects
- *
HERPETOFAUNA , *TROPICAL dry forests , *REPTILES , *SPECIES distribution , *AMPHIBIANS , *ORIENTAL fruit fly - Published
- 2024
- Full Text
- View/download PDF
34. Herpetofauna and Their Potential Threats in Karimata Island, Indonesia.
- Author
-
Pratama, Ferdian Wira, Fauzan, Opi, and Luthfi, Muhammad
- Subjects
- *
HERPETOFAUNA , *BIODIVERSITY conservation , *ANIMAL communities , *LAND clearing , *POLLUTION - Abstract
Karimata Island is an island about 100 km west of Borneo, causes geographical isolation and generally always shows an impact on the diversity of animal communities that are less, one of the communities affected is herpetofauna. Herpetofauna is very important in an ecosystem so it is necessary to conduct a survey. The survey was conducted from April 1 to April 7, 2023 in Betok Jaya Village, Karimata Island which was divided in 3 observation areas based on habitat type using the Visual Encounter Survey method. Herpetofauna found consisted in 22 species divided into 5 species of amphibians and 17 species of reptiles with a total of 43 individuals. Herpetofauna located adjacent to human areas is vulnerable to various disturbances such as maritime transportation activities, household waste pollution and land clearing, which can be a threat to the herpetofauna community of Karimata Island. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
35. Effects of Harmful Algal Blooms on Amphibians and Reptiles are Under‐Reported and Under‐Represented.
- Author
-
Tornabene, Brian J., Smalling, Kelly L., and Hossack, Blake R.
- Subjects
- *
ENVIRONMENTAL chemistry , *ALGAL blooms , *HERPETOFAUNA , *GENITALIA - Abstract
Harmful algal blooms (HABs) are a persistent and increasing problem globally, yet we still have limited knowledge about how they affect wildlife. Although semi‐aquatic and aquatic amphibians and reptiles have experienced large declines and occupy environments where HABs are increasingly problematic, their vulnerability to HABs remains unclear. To inform monitoring, management, and future research, we conducted a literature review, synthesized the studies, and report on the mortality events describing effects of cyanotoxins from HABs on freshwater herpetofauna. Our review identified 37 unique studies and 71 endpoints (no‐observed‐effect and lowest‐observed‐effect concentrations) involving 11 amphibian and 3 reptile species worldwide. Responses varied widely among studies, species, and exposure concentrations used in experiments. Concentrations causing lethal and sublethal effects in laboratory experiments were generally 1 to 100 µg/L, which contains the mean value of reported HAB events but is 70 times less than the maximum cyanotoxin concentrations reported in the environment. However, one species of amphibian was tolerant to concentrations of 10,000 µg/L, demonstrating potentially immense differences in sensitivities. Most studies focused on microcystin‐LR (MC‐LR), which can increase systemic inflammation and harm the digestive system, reproductive organs, liver, kidneys, and development. The few studies on other cyanotoxins illustrated that effects resembled those of MC‐LR at similar concentrations, but more research is needed to describe effects of other cyanotoxins and mixtures of cyanotoxins that commonly occur in the environment. All experimental studies were on larval and adult amphibians; there were no such studies on reptiles. Experimental work with reptiles and adult amphibians is needed to clarify thresholds of tolerance. Only nine mortality events were reported, mostly for reptiles. Given that amphibians likely decay faster than reptiles, which have tissues that resist decomposition, mass amphibian mortality events from HABs have likely been under‐reported. We propose that future efforts should be focused on seven major areas, to enhance our understanding of effects and monitoring of HABs on herpetofauna that fill important roles in freshwater and terrestrial environments. Environ Toxicol Chem 2024;43:1936–1949. Published 2024. This article is a U.S. Government work and is in the public domain in the USA. Environmental Toxicology and Chemistry published by Wiley Periodicals LLC on behalf of SETAC. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
36. The terrestrial herpetofauna of the Zuytdorp coast and hinterland of Western Australia: Exceptional richness in a global biodiversity hotspot.
- Author
-
Maryan, Brad, Gaikhorst, Glen, and Parkhurst, Ben
- Subjects
HERPETOFAUNA ,BIODIVERSITY ,ENDEMIC species ,ECOLOGY - Abstract
The herpetofaunal diversity of the Zuytdorp coast and hinterland was first described in detail by Storr & Harold (1980) who recorded 83 species of frogs and reptiles, in one of several papers on the herpetofauna of the west coast of Western Australia. Over four decades on, additional information shows the area north of the Murchison River (including Kalbarri National Park) and south of Shark Bay (an area of only 12,720 km2) now supports 118 species comprising 15 frogs, 1 freshwater turtle, 80 lizards and 22 snakes. Excluding marine turtles and sea snakes, this herpetofaunal diversity is comparable to that recorded from other areas on the west coast between Geraldton and Onslow. Aspects of composition, biogeography, endemism, and conservation significance are discussed in the context of the species recorded for the area. This information underlines how much more work is required before an improved understanding of biodiversity and distribution is attained in the globally recognised biodiversity hotspot of southwestern Western Australia. We discuss the contrasting land use of protected areas set aside for the conservation of flora and fauna and nonprotected areas under threat from major development projects. [ABSTRACT FROM AUTHOR]
- Published
- 2024
37. Multi‐year responses of reptiles to prescribed burning in a eucalypt forest ecosystem.
- Author
-
Doherty, Tim S., Johnson, Brent, Friend, Gordon R., and Wayne, Adrian F.
- Subjects
- *
FIRE ecology , *TEMPERATE forest ecology , *WILDLIFE management , *FOREST litter , *ANIMAL populations , *PRESCRIBED burning - Abstract
Prescribed burning is the primary method used to reduce wildfire risk in a range of ecosystems globally. Knowledge of how animal populations respond to prescribed burns is essential for designing fuel management plans that are sensitive to ecological values. We conducted a before–after, control‐impact experiment in the temperate jarrah forest ecosystem of south‐western Australia to examine how reptiles respond to season of burning (spring or autumn) and time since burning (0–5 years). Through pitfall trapping at 10 survey grids over 7 years, we captured 1808 reptiles from 22 species. Bayesian mixed effects models revealed that six of the eight species analysed showed either a decrease or increase in capture rate at burnt compared to unburnt sites, and most of these effects only occurred within the first 2 years post fire. Species richness showed a weak negative response to one autumn burn and no relationship with time since fire. Fire effects were more common in autumn compared to spring burns, which is likely a reflection of differing fire severities. These results suggest that prescribed burning can temporarily reduce habitat suitability and abundance for some species, particularly those that rely on leaf litter for shelter and foraging. Our findings emphasise the dynamic nature of reptile responses to prescribed burns and underscore the importance of considering both fire seasonality and recency of burning in wildlife management plans. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
38. CLASIFICACIÓN TRADICIONAL MASEUAL DE LOS ANFIBIOS Y REPTILES EN CUETZALAN DEL PROGRESO, PUEBLA, MÉXICO.
- Author
-
Suaste Barajas, Karla, Villegas, Alejandro, Masferrer Kan, Elio, and Babb Stanley, Kathleen Ann
- Subjects
- *
BIODIVERSITY conservation , *SCIENTIFIC literature , *TRADITIONAL knowledge , *ZOOLOGICAL nomenclature , *ENDEMIC species , *AMPHIBIANS - Abstract
Ethnobiological classification involves the nomenclature and classification of groups with certain affinities. Therefore, the objective of this study was to analyze the traditional maseual nomenclature of amphibian and reptile names in San Miguel Tzinacapan, Puebla. A review was conducted in scientific literature and technical reports on the amphibian and reptile species recorded for the area. Subsequently, cards with photographs of each animal were prepared to the people to identify them, and interviews were conducted with local people to obtain the amphibians and reptiles names. According to the records in the literature, a total of 252 species of amphibians and reptiles have been reported for the region, but people only recognized and identified 227. The maseual people classify animals beyond morphological differences and similarities, grouping them in terms of daily practices. Thirteen snake names were recorded, this group is the most representative and the one with the most names in maseual; eight amphibian maseual names, six lizard maseual names, and two maseual names for turtles were recorded. The way of writing the names of animals in Nahuatl depends on the knowledge of the person and the region where they live. Of the total species recorded, 65% were under special protection by NOM-059 and 59% were endemic species of the region. It is important to highlight the importance of traditional knowledge, as it helps to understand nature from different perspectives. The understanding and conservation of this traditional knowledge contributes greatly to the design of local strategies that favor the conservation of biological diversity and local culture. [ABSTRACT FROM AUTHOR]
- Published
- 2024
39. A revisit to the Early Pliocene site of Abla (Guadix-Baza Basin, southern Spain).
- Author
-
Piñero, Pedro, Agustí, Jordi, Blain, Hugues-Alexandre, Alberdi, María Teresa, Lapaz, Ángel Blanco, and Furió, Marc
- Subjects
- *
FOSSIL mammals , *SEQUENCE stratigraphy , *MIOCENE Epoch , *SHREWS , *BODIES of water - Abstract
The Guadix-Baza Basin (southern Spain) displays one of the best continental records from the Late Miocene to the Middle Pleistocene in western Europe, with many localities of fossil small mammals in a quite complete and continuous stratigraphic sequence. The Late Miocene continentalization of the Guadix-Baza Basin was firstly mentioned in the 1980s based on the presumed presence of Hipparion gromovae granatensis at the site of Abla (Almería province). Subsequent discoveries of late Turolian deposits confirmed the Late Miocene continentalization of the basin. The interest in the Abla site led to a second sampling campaign to look for microvertebrate fossils, which proved successful. In this paper, a complete taxonomic study of the novel microvertebrate fauna from Abla is presented, providing updated information on the age of the locality. Representatives of the vertebrate families Cyprinidae, Alytidae, Anguidae, Soricidae, Cricetidae, and Muridae have been identified. The presence of Stephanomys specimens exceeding the size of latest Miocene-earliest Pliocene species allows us to correlate the Abla site with the Early Pliocene (Ruscinian), a younger age than initially stated. A qualitative paleoecological interpretation based on the herpetofauna suggests the dominance of open environments with presence of permanent water bodies during the deposition of the Abla site, under warmer and more humid climate conditions than today in the Guadix-Baza Basin. A revision of the Hipparion remains from this locality showed that the sample is closer to Hipparion fissurae than to the initially assigned species. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
40. Assessing Herpetofauna Roadkill Patterns Near a Protected Area in Argentina.
- Author
-
González-Calderón, Alvaro
- Subjects
- *
STATISTICAL sampling , *ROADKILL , *SPRING , *HERPETOFAUNA , *PROTECTED areas - Abstract
Wildlife–vehicle collisions (roadkill) have a direct effect on survivorship of wildlife and are a serious problem for conservation in the protected areas. Amphibians and reptiles (herpetofauna) are characterized by their seasonal activity, slow movements, and use of roads as habitat, making them especially vulnerable to roadkill. With the aim of assessing the road-related herpetofauna mortality in a protected area boundary, I performed systematic sampling from June 2015 to February 2016 along a 94-km section of Provincial Route (RP) No. 17 in Cordoba Province, Argentina. I analyzed the species composition, roadkill frequency per km, and spatial and seasonal roadkill patterns. Thirty-six herpetofauna roadkills (belonging to six species) were recorded on RP No. 17, with a roadkill frequency per km of 0.0106. Reptiles were more affected than amphibians, with Philodryas patagoniensis and Tupinambis merianae being the most commonly killed species. A stretch of 23.7 km of the sampled road was identified as a roadkill hotspot. Number of roadkills increased with monthly mean temperature, with a snake roadkill peak in spring and a lizard roadkill peak in early summer. Here, I consider which factors could be related to the identified spatial and seasonal patterns of roadkill in this region. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
41. Herpetofauna diversity from late Holocene wetlands of northeastern Argentina.
- Author
-
Escobar, Guillermo, Zaracho, Víctor, Cuaranta, Pedro, Barboza, Carolina, Píccoli, Carolina, Luna, Carlos A., Gallego, Oscar F., and Monferran, Mateo D.
- Subjects
- *
HERPETOFAUNA , *FOSSIL reptiles , *HOLOCENE Epoch , *VIPERIDAE , *FOSSILS , *WETLANDS , *ANURA - Abstract
The palaeofauna of the Quaternary is mostly known from the mammals' record, while the herpetofauna is less represented. In the same way, in northeastern Argentina reptile fossils records are scarce, usually represented by preliminary communications. This paper focuses on the study of herpetofauna remains from the Isla El Disparito archaeological site. The faunal materials collected at the site revealed an increase in taxonomic diversity related to the Quaternary herpetofauna in the IED site, with over 50% of the bone remains represented by anurans and at least six recognized squamates taxa. The purpose of this study is to properly identify these new records of herpetofauna remains from northeastern Argentina during the Holocene as well as to provide a dichotomous key of postcranial remains for identifying extant squamates taxa in other Quaternary sites from Argentina. The identified squamate assemblage includes the lizard Ophiodes sp., the snake families Typhlopidae, Dipsadidae, Viperidae and undetermined colubroids, along with anuran bone remains (Anura indet. and ?Hylidae). Additionally, the findings contribute to a better understanding of the herpetological assemblage in Argentina, providing insights into the composition of South American squamates during the Quaternary. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
42. Forecasting potential invaders to prevent future biological invasions worldwide.
- Author
-
Pili, Arman N., Leroy, Boris, Measey, John G., Farquhar, Jules E., Toomes, Adam, Cassey, Phillip, Chekunov, Sebastian, Grenié, Matthias, van Winkel, Dylan, Maria, Lisa, Diesmos, Mae Lowe L., Diesmos, Arvin C., Zurell, Damaris, Courchamp, Franck, and Chapple, David G.
- Subjects
- *
INTRODUCED species , *HERPETOFAUNA , *AMPHIBIANS , *MACROECOLOGY , *REPTILES - Abstract
The ever‐increasing and expanding globalisation of trade and transport underpins the escalating global problem of biological invasions. Developing biosecurity infrastructures is crucial to anticipate and prevent the transport and introduction of invasive alien species. Still, robust and defensible forecasts of potential invaders are rare, especially for species without known invasion history. Here, we aim to support decision‐making by developing a quantitative invasion risk assessment tool based on invasion syndromes (i.e., generalising typical attributes of invasive alien species). We implemented a workflow based on 'Multiple Imputation with Chain Equation' to estimate invasion syndromes from imputed datasets of species' life‐history and ecological traits and macroecological patterns. Importantly, our models disentangle the factors explaining (i) transport and introduction and (ii) establishment. We showcase our tool by modelling the invasion syndromes of 466 amphibians and reptile species with invasion history. Then, we project these models to amphibians and reptiles worldwide (16,236 species [c.76% global coverage]) to identify species with a risk of being unintentionally transported and introduced, and risk of establishing alien populations. Our invasion syndrome models showed high predictive accuracy with a good balance between specificity and generality. Unintentionally transported and introduced species tend to be common and thrive well in human‐disturbed habitats. In contrast, those with established alien populations tend to be large‐sized, are habitat generalists, thrive well in human‐disturbed habitats, and have large native geographic ranges. We forecast that 160 amphibians and reptiles without known invasion history could be unintentionally transported and introduced in the future. Among them, 57 species have a high risk of establishing alien populations. Our reliable, reproducible, transferable, statistically robust and scientifically defensible quantitative invasion risk assessment tool is a significant new addition to the suite of decision‐support tools needed for developing a future‐proof preventative biosecurity globally. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
43. Herpetofauna of Nísia Floresta National Forest, Rio Grande do Norte, Brazil: Richness and abundance differences among natural and secondary forests.
- Author
-
de Andrade Sousa, Maria Beatriz, Bruzzi Lion, Marília, Magalhães Costa, Winícius Mateus, de Lima Egli, Bryan André, Figueiredo, Fabiany Herica, Leite, Nicolas Vinicius A. A., Morais Marcos, Daniel Victor, de Medeiros Magalhães, Felipe, Leite Matias, Cícera Silvilene, Ferreira da Silva Neta, Aldenir, Gomes de Oliveira, José Eduardo, Peres Puertas, Igor, Godeiro de Queiroz, Vitória, da Costa Silva, Daniel, Pessoa da Silva, Willianilson, Rodrigues da Silveira-Filho, Ricardo, Soares, Matheus Lucas Azevedo, Oliveira Mesquita, Daniel, and Garda, Adrian Antonio
- Subjects
- *
RAIN forests , *SECONDARY forests , *HERPETOFAUNA , *NATURE reserves , *PITFALL traps - Abstract
In the Atlantic Forest, species distributions are not uniform. The biome has been divided into 8 biogeographic sub-regions, such as the Pernambuco Center of Endemism (PCE), in northeastern Brazil. Nísia Floresta National Forest (Flona) is a protected area situated in the municipality of Nísia Floresta, Rio Grande do Norte state, harboring native vegetation (Atlantic Forest and "Restingas or Tabuleiros") as well regenerating areas, with experimental plots of exotic plants for timber production. Herein, we present, for the first time, a species list of the herpetofauna surveyed at Flona over the past 10 years, using a standardized, long-term sampling design along with visual encounter surveys. We conducted monthly surveys across the area using 84 pitfall traps randomly distributed in 21 arrays throughout the forest's three phytogeographic zones (Restinga, Atlantic Forest, and Regeneration). In addition, we characterized ground-dwelling herpetofauna community diversity across these three zones over the course of an entire year. We collected a total of 39 species of reptiles (among lizards, snakes, chelonians, alligators, and amphisbaenians) and 24 species of frogs. The most frequent family found for reptiles was Dipsadidae, followed by Colubridae. In frogs, Leptodactylidae was the most common, followed by Hylidae. Herpetofaunal diversity in regeneration areas is smaller than forests, which in turn are marginally less diverse than the Restinga. Community descriptors such as equity, presence of exclusive species, and differences in abundances and composition indicate that distinct management strategies for each zone are needed for this protected area. At last, albeit smaller, diversity in regenerating areas is similar to natural areas, a reassuring result considering the significant deforestation the Atlantic Forest has suffered and the urgent need for restoration initiatives. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
44. Primer reporte de anfibios y reptiles en el Refugio de Vida Silvestre Los Pantanos de Villa (Lima-Perú).
- Author
-
Barrera-Moscoso, Diego A., Torres-Ccasani, Grecia, and Ramírez, Dámaso W.
- Subjects
NATURE reserves ,RHINELLA marina ,WETLAND conservation ,SPECIES distribution ,WILDLIFE refuges - Abstract
Copyright of Revista de la Academia Colombiana de Ciencias Exactas, Físicas y Naturales is the property of Academia Colombiana de Ciencias Exactas, Fisicas y Naturales and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2024
- Full Text
- View/download PDF
45. Molecular identification of Herpetofauna from Punjab, Pakistan, using mtDNA genes.
- Author
-
Ali, Waqas, Bukhari, Syed Mohsin, Ayub, Amina, Qadir, Ghulam, Hussain, Mudasar, Masood, Mohsin, Akhtar, Naseem, Alam, Hamad, Nawaz, Laiba, and Javid, Arshad
- Subjects
HERPETOFAUNA ,RIBOSOMAL RNA ,SPECIES diversity ,SPECIES distribution - Abstract
The herpetofauna diversity of Pakistan is underestimated due to the country's lack of molecularbased identification. Field surveys were conducted from August 2018 through July 2022 to collect as many as possible specimens from Punjab, Pakistan. A total of 21 species were collected and initially identified by morphological characteristics. The three gene fragments in four amphibian species and seven reptile species were successfully amplified and sequenced. A total of 18 DNA sequences of 11 species representing nine genera and five families were deposited in GenBank, and accession numbers were obtained. Furthermore, phylogenetic analysis was performed through the Neighbor-joining method using 100 bootstrap pseudo-replicates in MEGA X. Closely related toad species, namely Duttaphrynus melanostictus and Duttaphrynus stomatitis, were clearly separated in the tree inferred from Cytb gene sequences. Similarly, conspecific sequences were analyzed for multiple individuals of Platyceps rhodorachis clustered together in the tree inferred from COI gene sequences. In our findings, 16S rRNA appears to be more reliable in identifying amphibian species, while COI has a better success rate in reptile species identification. In our recommendations, molecular-based identification of herpetofauna is necessary nationwide to document any new subspecies. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
46. Where the toad crosses the road: multi-method and cross-taxa Texas herpetofauna roadkill modeling for conservation planning.
- Author
-
Chyn, Kristina, Tracy, James L., Wright, Wendy, Voltura, Elise Varaela, Fitzgerald, Lee A., and Coulson, Robert
- Subjects
HERPETOFAUNA ,ROADKILL ,POPULATION density ,TOADS ,SPECIES distribution - Abstract
Herpetofauna are globally declining but often overlooked in conservation efforts. Since many herpetofauna are susceptible to localized road mortality, we develop the first North American herpetofauna roadkill models to inform conservation planning. The iNaturalist Roadkills of Texas database is employed to develop and compare ensembles of feature-selected MaxEnt species distribution models (SDMs) and kernel density estimate models (KDEMs) of roadkill, including broad-taxa models (btSDMs and btKDEMs) of combined Texas herpetofauna, and single-species models for the state threatened Texas Horned Lizard (Phrynosoma cornutum) and common generalist Gulf Coast Toad (Incilius nebulifer). We also novelly evaluate cross-taxa roadkill models (ctSDMs; ctKDEMs) using both broad-taxa (bctSDMs; bctKDEMs) and single-species (sctSDMs; sctKDEMs) models, assessing how well models for one taxa project sympatric roadkill of individual species, including two rare herpetofauna with insufficient data for modeling: the state threatened Texas Tortoise (Gopherus berlandieri) and federally endangered Houston Toad (Anaxyrus houstonensis). Texas herpetofauna MaxEnt roadkill btSDMs and Texas Horned Lizard roadkill SDMs both outperformed corresponding poor accuracy KDEMs. Gulf Coast Toad MaxEnt roadkill SDMs and KDEMs had poor accuracy, but KDEMs had lower complexity. Texas herpetofauna roadkill bctSDMs had excellent and significantly highest accuracy in projecting cross-taxa roadkill for the Texas Horned Lizard and Texas Tortoise. Texas herpetofauna roadkill bctSDMs also best projected Houston Toad roadkill. Important MaxEnt SDM variables included distance to residential roads, human population density, percent cover developed open space, and live herpetofauna KDE. Texas herpetofauna bctSDMs can guide further roadkill surveys needed to improve models and develop mitigation plans for herpetofauna conservation. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
47. Fluorescence in amphibians and reptiles: new cases and insights.
- Author
-
BOTELHO, LUCAS M., MARTINS, SUZANA E., MELOCCO, GREGORY, TOLEDO, LUÍS F., SAZIMA, IVAN, and MUSCAT, EDELCIO
- Subjects
- *
BIOFLUORESCENCE , *NATURAL history , *REPTILE surveys , *HERPETOFAUNA , *SEXUAL dimorphism , *AMPHIBIANS - Abstract
Fluorescence in amphibians and reptiles has emerged as a prominent study subject in recent years, with research focused on understanding its function and diversity. As the knowledge of fluorescence in vertebrates is still understudied, we surveyed amphibian and reptile species in montane and lowland Atlantic Forest sites to evaluate presence or absence of fluorescence. By randomly sampling species, we found evidence of fluorescence in amphibians of the genera Scinax, Brachycephalus and Hylodes, and reptiles of the genera Bothrops, Enyalius and Hemidactylus. Our findings increase the list of known species that may benefit from fluorescent patterns. Fluorescence was either ocular, dermal, or subdermal related to the skeleton or ossified dermal structures. Whether these species are able to see and interpret the different the patterns generated by fluorescent structures is yet to be discovered. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
48. Study methodology impacts density-dependent dispersal observations: a systematic review.
- Author
-
Jreidini, Nathalie and Green, David M.
- Subjects
ANIMAL dispersal ,MULTILEVEL models ,RESEARCH personnel ,HERPETOFAUNA ,ACQUISITION of data - Abstract
The relationship between animal dispersal and conspecific density has been explored in various study systems but results in terms of both the magnitude and the direction of density dependence are inconsistent. We conducted a thorough review of the literature (2000–2023) and found k = 97 empirical studies of birds, fishes, herpetofauna (amphibians and reptiles), invertebrates, or mammals that had tested for a correlation between conspecific density and animal dispersal. We extracted categorical variables for taxonomic group, sex, age, migratory behavior, study design, dispersal metric, density metric and variable type, as well as temporal and spatial scale, to test each of their correlation with the effect of density on dispersal (Pearson's r) using linear regressions and multilevel mixed-effect modelling. We found certain biases in the published literature, highlighting that the impact of conspecific density on dispersal is not as widespread as it is thought to be. We also found no predominant trend for density-dependent dispersal across taxonomic groups. Instead, results show that the scale and metrics of empirical observations significantly affected analytical results, and heterogeneity measures were high within taxonomic groups. Therefore, the direction and magnitude of the interaction between density and dispersal in empirical studies could partially be attributed to the data collection method involved. We suggest that the contradictory observations for density-dependent dispersal could be explained by dispersal-dependent density, where density is driven by movement instead, and urge researchers to either test this interaction when applicable or consider this perspective when reporting results. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
49. Pathogenic Potential of Opportunistic Gram-Negative Bacteria Isolated from the Cloacal Microbiota of Free-Living Reptile Hosts Originating from Bulgaria.
- Author
-
Lazarkevich, Irina, Engibarov, Stephan, Mitova, Simona, Popova, Steliyana, Vacheva, Emiliya, Stanchev, Nikola, Eneva, Rumyana, Gocheva, Yana, Lalovska, Iva, Paunova-Krasteva, Tsvetelina, Ilieva, Yana, and Najdenski, Hristo
- Subjects
- *
GRAM-negative bacteria , *CAPTIVE wild animals , *INTRODUCED species , *HERPETOFAUNA , *TURTLES , *LIZARDS , *BACTERIA - Abstract
Reptiles are known to be asymptomatic carriers of various zoonotic pathogens. A number of Gram-negative opportunistic commensals are causative agents of bacterial infections in immunocompromised or stressed hosts and are disseminated by reptiles, whose epidemiological role should not be neglected. Since most studies have focused on exotic species, in captivity or as pet animals, the role of wild populations as a potential source of pathogens still remains understudied. In the present study, we isolated a variety of Gram-negative bacteria from the cloacal microbiota of free-living lizard and tortoise hosts (Reptilia: Sauria and Testudines) from the Bulgarian herpetofauna. We evaluated their pathogenic potential according to their antibiotic susceptibility patterns, biofilm-forming capacity, and extracellular production of some enzymes considered to play roles as virulence factors. To our knowledge, the phenotypic manifestation of virulence factors/enzymatic activity and biofilm formation in wild reptile microbiota has not yet been widely investigated. All isolates were found to be capable of forming biofilms to some extent and 29.6% of them could be categorized as strong producers. Two strains proved to be excellent producers. The majority of the isolated strains showed extracellular production of at least one exoenzyme. The most pronounced pathogenicity could be attributed to the newly isolated Pseudomonas aeruginosa strain due to its multiresistance, excellent biofilm formation, and expression of exoenzymes. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
50. Taxonomic diversity of amphibians (Amphibia, Anura) and reptiles (Reptilia, Testudines, Squamata) in a heterogeneous landscape in west-central Mexico: a checklist and notes on geographical distributions.
- Author
-
Rosas-Espinoza, Verónica Carolina, Álvarez-Grzybowska, Eliza, Godoy González, Arquímedes Alfredo, Santiago-Pérez, Ana Luisa, Peña-Joya, Karen Elizabeth, Rodríguez-Zaragoza, Fabián Alejandro, Díaz Pérez, Leopoldo, and Huerta Martínez, Francisco Martín
- Subjects
- *
AMPHIBIAN diversity , *HERPETOFAUNA , *SPECIES diversity , *HABITAT conservation , *REPTILE diversity , *AMPHIBIANS - Abstract
In Mexico, land use changes have significantly impacted the diversity of amphibians and reptiles in a negative way. In light of this, we evaluate the alpha and beta components of the taxonomic diversity of amphibians and reptiles in a heterogeneous landscape in west-central Mexico. Additionally, we provide a checklist of amphibian and reptile species recorded over nine years of observations within the studied landscape and surrounding areas. The land cover/use types with the highest species richness and alpha taxonomic diversity differed between amphibians and reptiles. Overall beta taxonomic diversity was high for both groups, but slightly higher in reptiles. This taxonomic differentiation mainly corresponded to a difference in the turnover component and was greater in pristine habitats compared to disturbed ones. The checklist records 20 species of amphibians (ten of which are endemic) and 48 of reptiles (30 endemics). Additionally, the study expands the known geographical distribution range of one species of frog and three species of snakes. Our findings suggest that heterogeneous landscapes with diverse land cover/use types can provide essential habitats for the conservation of amphibian and reptile species. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
Catalog
Discovery Service for Jio Institute Digital Library
For full access to our library's resources, please sign in.