Search

Copyright of Revista Colombiana de Química is the property of Universidad Nacional de Colombia 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.)

The ability to predict which areas of conservation importance are most vulnerable to transformation and to rank the relative damage that transforming land uses could cause to biodiversity are important components of an effective and realistic conservation planning process. We used the South African grassland biome as a case study to illustrate the assessment of vulnerability to land-use transformation through the construction of a “threat map.” We identified the dominant transforming land uses and created suitability models based on area appropriateness for each. Land uses were scored according to their expected relative impacts on biodiversity, with a framework that included compositional, structural, and functional components. This information, once combined, resulted in a map that highlighted the areas most vulnerable to transformation in terms of the likelihood of their transformation and the impact on their biodiversity. We propose that such an analysis of the threat of transformation, in combination with species-representation approaches, will aid the integration of conservation planning theory and decision making. This approach can be applied at any scale and in any region with a robustness and accuracy dependent on data quality, resultant suitability models, and comprehension of how land uses affect an area's biodiversity. [ABSTRACT FROM AUTHOR]

Recent withdrawal of the U.S. military from the Republic of Panama has exposed 64,000 ha of lowland forest in the former Canal Zone to possible development. The forests form a 16-km-wide strip reaching 65 km from the Caribbean Sea to the Pacific Ocean and function as the water supply for the canal and as home to one of the world's richest terrestrial biotas. We present an overview of the distribution of bird diversity in the forests of the canal area based on 10 years of inventories. A total of 498 terrestrial species has been recorded, of which 177 occur only in lowland forests. More species reside in Caribbean- than in Pacific-slope forests and in the largest forest tracts. The Panamanian government, recognizing the importance of the forests for protection of biodiversity and for proper functioning of the canal, has created two national parks and a national monument in the canal area. One large park, Soberania National Park, currently contains 92% of the region's forest-dwelling species. Two large tracts on the Caribbean coast, the Achiote Road forest and the Fort Sherman forest, are not designated as national parks but are recognized as important forest areas. Those two forests harbor species found nowhere else in the canal corridor. Extensive fragmentation, disconnection of forested corridors between foothills and lowlands, and anthropogenic degradation of forests near towns have altered regional bird-community dynamics. Some dynamics occur on large spatial scales, such as the poorly understood movements of elevational and transisthmian migrants. Long-term maintenance of bird species diversity in the canal area will require preservation of the large forest tracts and reestablishment of a forested connection from the canal corridor lowlands to the Chagres lowlands and foothills in the east. Such conservation activities will be challenging to execute given the region's growing human population and desires for a stronger national economy. We recommend protection of remaining forests and active enforcement of protection laws to reduce hunting and further intrusions. [ABSTRACT FROM AUTHOR]

Copyright of Bio-grafía. Escritos Sobre la Biología y su Enseñanza is the property of Universidad Pedaggica Nacional 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.)

Copyright of Conservation Biology is the property of Wiley-Blackwell 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.)

Copyright of Gestión Joven is the property of Asociacion Espanola de Contabilidad y Administracion de Empresas 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.)

Copyright of Revista de Arqueologia is the property of Revista de Arqueologia 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.)

Copyright of Revista Peruana de Biología is the property of Facultad de Ciencias Biologicas, Universidad Nacional Mayor de San Marcos 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.)

Genetic diversity within species represents a fundamental yet underappreciated level of biodiversity. Because genetic diversity can indicate species resilience to changing climate, its measurement is relevant to many national and global conservation policy targets. Many studies produce large amounts of genome‐scale genetic diversity data for wild populations, but most (87%) do not include the associated spatial and temporal metadata necessary for them to be reused in monitoring programs or for acknowledging the sovereignty of nations or Indigenous peoples. We undertook a distributed datathon to quantify the availability of these missing metadata and to test the hypothesis that their availability decays with time. We also worked to remediate missing metadata by extracting them from associated published papers, online repositories, and direct communication with authors. Starting with 848 candidate genomic data sets (reduced representation and whole genome) from the International Nucleotide Sequence Database Collaboration, we determined that 561 contained mostly samples from wild populations. We successfully restored spatiotemporal metadata for 78% of these 561 data sets (n = 440 data sets with data on 45,105 individuals from 762 species in 17 phyla). Examining papers and online repositories was much more fruitful than contacting 351 authors, who replied to our email requests 45% of the time. Overall, 23% of our email queries to authors unearthed useful metadata. The probability of retrieving spatiotemporal metadata declined significantly as age of the data set increased. There was a 13.5% yearly decrease in metadata associated with published papers or online repositories and up to a 22% yearly decrease in metadata that were only available from authors. This rapid decay in metadata availability, mirrored in studies of other types of biological data, should motivate swift updates to data‐sharing policies and researcher practices to ensure that the valuable context provided by metadata is not lost to conservation science forever. [ABSTRACT FROM AUTHOR]

The paper identifies the links between transnational municipal networks and international agreements in the environmental arena. It is taken for granted that transnational municipal networks support global environmental action and the process of sustainable development, in particular giving access to resources, with technical support and knowledge, but to what extent international agreements such as the United Nations Framework Convention on Climate Change, the Paris Agreement, or the Convention on Biological Diversity guide the action of these networks? The research resorts to content analysis to examine the goals, mission, and published documents of two networks in particular, ICLEI and Mercosur, in the search for clear connections with the intergovernmental level. The paper contributes to the understanding of the role of transnational municipal networks in environmental governance, identifying through abductive reasoning the diffusion of norm from the international to the local level and underlining the importance of the role of international, national and local actors. [ABSTRACT FROM AUTHOR]

Copyright of Educación y Ciudad is the property of Instituto para la Investigacion Educativa y Desarrollo Pedagogico 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.)

Copyright of kul-tur: Revista Interdisciplinària Sobre la Cultura de la Ciutat is the property of kul-tur: Revista Interdisciplinaria Sobre la Cultura de la Ciutat 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.)

Copyright of Bio-grafía. Escritos Sobre la Biología y su Enseñanza is the property of Universidad Pedaggica Nacional 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.)

Copyright of Bio-grafía. Escritos Sobre la Biología y su Enseñanza is the property of Universidad Pedaggica Nacional 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.)

Introduction: Since the beginning of its republican life, the development of biological sciences in Costa Rica has been strongly influenced by hundreds of foreign naturalists and scientists who have carried out exploration, research, and publication activities in relation to its biodiversity. Objective: To better understand their contributions, in this paper we take an historical tour, with emphasis on the last century and a half, regarding the motivations that attracted these people to Costa Rica, as well as their specific scientific contributions. Methods: Six criteria were followed to address this issue: a) whether they were residents or itinerants; b) if they had a frequent relationship with Costa Rica; c) if they collected specimens; d) the type of publication; and e) whether to implement teaching or institutional management. Results: Therefore, the information is organized into six large sections, structured chronologically as follows: the first inventories of the biodiversity of Costa Rica (1513-1842), the recognition of biological sciences in Costa Rican culture (1839-1848), the insertion of biological sciences in Costa Rican culture (1854-1886), the institutionalization of the biological sciences in Costa Rica (1886-1900), Costa Rica as a mecca for biological explorations (1900-1957), and the training of professionals in biological sciences (1940-2021). Conclusion: This periodization allows us to contextualize the contributions of those naturalists or scientists in time, as well as to better visualize the economic, social and political events and circumstances that conditioned their scientific work. [ABSTRACT FROM AUTHOR]

Copyright of La Granja, de Ciencias de la Vida is the property of Universidad Politecnica Salesiana 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.)

Copyright of Arnaldoa is the property of Universidad Privada Antenor Orrego, Museo de Historia Natural 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.)

Copyright of Revista de Investigación Agraria y Ambiental is the property of Revista de Investigacion Agraria y Ambiental 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.)

The orchard is the place where a colossal diversity of food, medicinal plants, condiment, flowers, and wood are cultivated. Based on the orographic conditions, climates, and cultural dynamics of each region, related, farming knowledge is objectified. This paper analyzes the orchard territorial scale in Figueroa, Cauca, social scenario in which agricultural praxis is carried out, which articulates conservation and resistance practices, carried out day-to-day. The method of research is ethnographic, based on the role of ethnographer as assistant-companion in the orchard, and the use of techniques such as participant observation, direct interviews, and ethnographic interviews. Based on the field work, the orchard is identified as a biodiverse place, where there is a complex network of actions and thoughts, whose core axis is the defense of nature and territory, that is, life. [ABSTRACT FROM AUTHOR]

Agricultural activity increases productivity and profitability while increasing environmental costs. However, if the sustainability of ecosystems is altered, they will become degraded systems and will eventually stop providing services. This insufficiency will generate a reduction in the inherent capacity of ecosystems to sustain not only economic activity but also other human activities. The aim of this paper is to assess the incidence of agriculturization on the provision of ecosystem services in the Environmental Units of Tandil, for the periods 1989-2004 and 2004-2019. Sustainability indicators adapted from the AgroEcoIndex Software were used to determine which are the landscape areas where the application of criteria related to environmental management is crucial. In particular, the state of provision of biodiversity conservation services and the quality of soil and water is assessed. The indicators used show a worsening in the provision of these services by 29% and 11.48% accordingly in the period under study. It is essential to determine priority conservation areas, to incorporate good agricultural practices and to diversify control techniques beyond exclusively chemical control. [ABSTRACT FROM AUTHOR]

Copyright of Nodo: Arquitectura. Ciudad. Medio Ambiente is the property of Universidad Antonio Narino 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.)

Copyright of La Granja, de Ciencias de la Vida is the property of Universidad Politecnica Salesiana 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.)

Copyright of Revista Catalana de Dret Ambiental is the property of Universitat Rovira I Virgili 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.)

Copyright of Ciencia Ergo Sum is the property of Universidad Autonoma del Estado de Mexico 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.)

Copyright of Revista Mexicana de Biodiversidad is the property of Universidad Nacional Autonoma de Mexico, Instituto de Biologia 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.)

Copyright of Acta Biológica Colombiana is the property of Universidad Nacional de Colombia, Facultad de Biologia 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.)

Copyright of Tropical Grasslands / Forrajes Tropicales is the property of International Centre for Tropical Agriculture - CIAT 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.)

Introduction: Environmental compensation is a technical-legal instrument of environmental management used to offset damage due to non-reversible and unavoidable impacts. Usually, offset regulations are included in national environmental legislations. This paper summarizes environmental compensation legislation in Costa Rica, a country with a recognized conservation tradition and environmental awareness. Our goal is to describe how compensation is formulated in that country and identify possible regulations gaps. Methods: We carried out a systematic review of environmental legislation through the Costa Rican Legal Information System (http://www.pgrweb.go.cr/scij/avanzada_pgr.aspx), considering both regulations and pronouncements on compensation measures and mitigation. Results: The Political Constitution of Costa Rica recognizes a healthy environment as a fundamental right for all citizens. At least seven laws dealing with environmental issues and their respective regulations are currently enforced. This bulky legislation aims to protect natural resources by regulating their use and creating an assemblage of protected wild areas. However, the legislation is somewhat repetitive and open to interpretation, facilitating confusion. Actions requiring compensation are regulated in a general way, making it difficult to establish when and how to apply them. In addition, compensation is considered based on when the damage is identified and not on its level of environmental impact. Furthermore, the regulations do not make explicit the principles and goals that support the compensatory measures or how they should be carried out, briefly mentioning some actions that do not ensure that the net environmental loss is zero. Conclusions: This review reveals the need to standardize the mechanisms to determine compensatory measures at the regulatory level, also analyzing the strategies that will be followed to ensure proportionality and ecological equivalence. The legislation must emphasize the importance of compensation as a positive practice, which must be incorporated within the guidelines of the Environmental Impact Study. [ABSTRACT FROM AUTHOR]

Using the New Rurality approach as conceptual framework, this paper analized the participative and deliberative process of developing a Proyecto Educativo Institucional (PEI) (Institutional Educative Plan) in a rural school in Tranapuente, Southern Chile. This research uses a qualitative design to study the relation between the school of Tranapuente and the rural communities where the school is located, describing the products of the process: Mission and vision of the school, main curricular areas (diversity, intercultural, relation school community and participative management of the schools). Finally, this paper analyzes how these products are conditions to rebuild the purpose and meanings of the school with the final purpose of improve curriculum and intercultural learning of the students. [ABSTRACT FROM AUTHOR]

Copyright of Revista Ciência em Extensão is the property of Revista Ciencia em Extensao 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.)

Introduction: Coffee is a highly mycotrophic plant, its interaction with arbuscular mycorrhizal fungi has been studied among different tropical countries. The majority of the published works indicates that coffee is benefited from the mycorrhizal association, where the AMF confers protection against pathogens and diseases, increases water absorption, as well as it increases the adaptation of the plant at transplant from nurseries to the main plantation. Objective: A review was made where we summarized and analyze the research reports of AMF with coffee from at least the past 10 years, focused on AMF global species distribution, nutritional benefits of the association and interaction with pathogens. Methods: We retrieved available bibliographic data from coffee producer countries in public databases. We considered published works from 2000 to 2019, nevertheless, we included classic papers on the topic, outside that period, mainly the ones performed in Brazil since 1986. We organized the number of reported species per country, we look for synonyms, grouped them by family, genera and species. The reports that only reported genera or where ambiguous were used as reference but not considered for the final analysis. We summarized the reports of the benefits of the AMF interaction in coffee, as well as pathogen tolerance. Results: The collected data shows that there are more than 100 AMF species associated with coffee, which represents more than a third part of the total of reported species worldwide. We found that Colombia has the highest richness, but it also has the highest number of published reports. Conclusions: This information shows the benefits of the incorporation of AMF to coffee plantation programs, because these fungi are a key element in coffee plant nutrition, nevertheless, the coffee variety should be considered when introducing AMF, as not all associations has been efficient. [ABSTRACT FROM AUTHOR]

Seasonally dry tropical forests are ecosystems of high endemism and floristic diversity, but they have been relatively not well-studied ecosystems and are very much threatened by anthropic pressures. This study aimed to evaluate the dendrometric and horizontal structure characteristics of the population of 12 endemic plant species in the semideciduous forest of the Equatorial Pacific Coastal Cordillera of the Machalilla National Park, Manabí, Ecuador. This is one of the most extensive protected areas on the Ecuadorian coast, located in the Tumbes-Chocó-Magdalena biogeographic region. It is considered one of the 25 hotspots worldwide. We selected 12 species that hypothetically co-exist in this semideciduous forest (Bursera graveolens, Eriotheca ruizii, Handroanthus chrysanthus, Ziziphus thyrsiflora, Geoffroea spinosa, Myroxylon balsamum, Priogymnanthus apertus, Melicoccus bijugatus, Nectandra reticulata, Simira ecuadorensis, Coccoloba ruiziana, Klarobelia lucida). We studied five 2500 m2 transects, where dendrometric variables (tree height, diameter at breast height-DBH, basal area, altimetric and diameter classes) were evaluated. We evaluated the horizontal structure variables of populations like absolute/relative abundance, dominance and frequency, and the importance value index (IVI and IVN). In 12,500 m2, the results identified 331 individuals. M.balsamum was the highest species (9.41 m), while E.ruizii had the highest DBH (21.03 cm) and the biggest basal area (0.05 m2). The species with the highest absolute/relative abundance and frequency were S.ecuadorensis and H.chrysanthus, and the latter had the highest absolute dominance (1.23 m2•ha−1). S.ecuadorensis presented the highest importance value index based on 100 and 300, followed by H.chrysanthus and Z.thyrsiflora. P.apertus, M.balsamum, E.ruizii and C.ruiziana obtained intermediate values. The least ecological weight was for N.reticulata, K.lucida, M.bijugatus and G.spinosa. No B.graveolens individuals were observed in the studied transects in this forest because this species was found at altitudes < 240 m a.s.l. The results of the altimetric and diameter classes indicated that the studied sector corresponds to a relatively young secondary forest affected by natural and anthropic factors. Seasonally dry tropical forests are relatively not well-studied ecosystems. Consequently, we suggest to policymakers, to incentive the development of research on dendrology and horizontal structure of endemic forest species of economic, social and cultural interest in these ecosystems to facilitate decision-making in forest management. The illegal extraction of wood in seasonally dry tropical forests is one of the main factors that lead to the degradation of these vegetal formations; therefore, we suggest to managers and politicians to implement surveillance measures and control mechanisms to prevent the illegal extraction of wood in these ecosystems. Seasonally dry tropical forests are ecosystems of high endemism and floristic diversity, but they are very much threatened by anthropic pressures. We suggest to policymakers: (1) to develop integrated management plans prioritizing the conservation of protected ecosystems and forest species of economic, social and cultural interest, and (2) to promote environmental education on the importance of conserving protected ecosystems and key forest species. Los bosques tropicales estacionalmente secos son ecosistemas de alto endemismo y diversidad florística; pero han sido ecosistemas relativamente poco estudiados y muy amenazados por presiones antrópicas. El objetivo del presente estudio fue evaluar las características dendrométricas y de estructura horizontal de la población de doce especies arbóreas endémicas en el Bosque Semideciduo de la Cordillera Costera del Pacífico Ecuatorial en el Parque Nacional Machalilla (PNM), Manabí, Ecuador. 'Ésta es una de las áreas protegidas más extensas de la costa ecuatoriana, localizada en la región biogeográfica Tumbes-Chocó-Magdalena, considerada uno de los 25 hotspots a nivel mundial. Se seleccionaron doce especies, las cuales hipotéticamente coexisten en el bosque semideciduo estudiado (Bursera graveolens, Eriotheca ruizii, Handroanthus chrysanthus, Ziziphus thyrsiflora, Geoffroea spinosa, Myroxylon balsamum, Priogymnanthus apertus, Melicoccus bijugatus, Nectandra reticulata, Simira ecuadorensis, Coccoloba ruiziana, Klarobelia lucida). Estudiamos 5 transectos de 2500 m2, en los cuales se evaluaron variables dendrométricas (altura del árbol, diámetro a la altura del pecho-DAP, área basal, clases altimétricas y diamétricas), y variables de estructura horizontal de las poblaciones (abundancia, dominancia y frecuencia, absoluta y relativa, e índice de valor de importancia – IVI e IVN). En total se identificaron 331 individuos en 12.500 m2. M.balsamum fue la especie con mayor altura (9,41 m); mientras que E.ruizii mostró el mayor DAP (21,03 cm) y área basal (0,05 m2). Las especies con mayor abundancia y frecuencia (absoluta y relativa) fueron S.ecuadorensis y H.chrysanthus, siendo esta última especie la que mostró mayor dominancia absoluta (1,23 m2•ha−1). S.ecuadorensis registró los mayores valores de IVI y IVN, seguida de H.chrysanthus y Z.thyrsiflora. P.apertus, M.balsamum, E.ruizii y C, ruiziana mostraron valores intermedios; mientras que N. reticulata, K. lucida, M. bijugatus y G.spinosa fueron las especies con menor peso ecológico. En los transectos no se observaron individuos de B. graveolens, lo cual indicó que esta especie se encontraba en cotas inferiores a los 240 m s.n.m. Los resultados observados en las clases altimétricas y diamétricas indicaron que el sector estudiado corresponde a un bosque secundario relativamente joven, que ha sido afectado por factores naturales y antrópicos. [ABSTRACT FROM AUTHOR]

Copyright of Revista Peruana de Biología is the property of Facultad de Ciencias Biologicas, Universidad Nacional Mayor de San Marcos 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.)

Copyright of Revista Peruana de Biología is the property of Facultad de Ciencias Biologicas, Universidad Nacional Mayor de San Marcos 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.)

Copyright of Revista Mexicana de Biodiversidad is the property of Universidad Nacional Autonoma de Mexico, Instituto de Biologia 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.)

Copyright of Revista Facultad Nacional de Agronomía Medellín is the property of Universidad Nacional de Colombia 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.)

Copyright of Boletín de la Sociedad Argentina de Botánica is the property of Sociedad Argentina de Botanica 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.)

Copyright of Acta Biológica Colombiana is the property of Universidad Nacional de Colombia, Facultad de Biologia 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.)

Copyright of Revista de la Sociedad Entomológica Argentina is the property of Sociedad Entomologica Argentina 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.)

This paper reflects on the normative design, which regulates research in Colombia and the practices of researchers from an ethical approach, by addressing critical issues in the health sciences, social sciences, and environmental disciplines, to conclude that it is necessary to strengthen state control in these issues, the updating of the regulations and greater training of researchers and members of Ethics Committees in research, especially in the protection of participants, animal care, conflicts of interest, the management of communities, and vulnerable groups, community protocols, informed consent, prior consultation, biodiversity care, and access to genetic resources. [ABSTRACT FROM AUTHOR]

The aim of the present paper is to introduce students to tree-thinking through a ludic activity. Phylogenetic trees are the appropriate way to explain biodiversity under the theoretical framework of current evolutionary hypothesis and they should take a central place in public understanding of evolution. Misinterpretation of phylogenies plus the unavailability of didactic material in Spanish for teachers ends up in the reproduction of misunderstandings on the evolutionary theory. The combination of these errors with epistemological problems of evolutionary theories learning generates even more confusion in these subjects. The ludic activity as a learning process provides powerful tools when it comes to acquiring concepts that require abstraction in contents. Educational natural science games, both classical and modern approaches as Game-based learning theory, provide a sense of achievement to players/apprentices and they improve knowledge acquisition. In this context, the activity proposed here invites students to think under the scientific method and it allows them to assimilate abstract concepts by the resolution of evolutionary riddles. This activity gives the concepts to introduce scholars to the study of evolutionary processes, and the diversity of life on Earth under the current educational paradigms. [ABSTRACT FROM AUTHOR]

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.)

Copyright of Argentinian Horticulture / Horticultura Argentina is the property of Revista Horticultura Argentina 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.)

Copyright of Liminar is the property of Universidad de Ciencias y Artes de Chiapas 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.)