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5. Wild Turkey (Meleagris gallopavo mexicana L.) Monitoring:Innovation in Sampling and Estimator of Population Density

Author

Clemente-Sánchez, Fernando, Rosas-Rosas, Octavio César, and Tarango-Arámbula, Luis Antonio

Subjects
Productivity Analysis, density, Meleagris gallopavo, Research and Development/Tech Change/Emerging Technologies, Community/Rural/Urban Development, Wild fauna, population, sample size
Abstract

Objective: To estimate the population of wild turkey (Meleagris gallopavo, mexicana) and its density in ecosystems of distribution. Design/Methodology/Approach: A method based on random sampling with a population density estimator was designed. The design was based on the observation of wild turkeys that go to attraction sites (feedlots) of 2,500 m2 (5050 m) counted in 12 h a day, three consecutive days. For all the random sites, the criterion of one site for every 300 ha of surface under study was used. The study was carried out on March 1, 2 and 3, 2019, in 3,000 ha of pine-oak forest, in Monte Escobedo, Zacatecas, Mexico. Observations were made from a fixed point 25 m away from each site, from 6:00 a.m. to 6:00 p.m. The attraction sites were located at a random distance within 10 systematically fixed transects in the study area. Results: The results showed a population of 66 wild turkeys in 3,000 ha, with a density of 0.022 wild turkeys ha1. Study Limitations/Implications: The application of the method was useful for monitoring wild turkey in the pine-oak forest, showing that it is a method that does not affect the population, which does not require long sampling times, is reliable, low-cost, and easy to carry out. The method is not reliable in ecosystems that do not allow the location of high visibility sites. Findings/Conclusions: Considering the distribution of wild turkey in Mexico, the method is a new alternative applicable to population studies of wild turkey.

Published
2021
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6. Comportamiento de la diversidad arbórea-arbustiva en zonas de pastoreo en un área natural protegida del trópico seco poblano

Author

García-Fragoso, Ana Laura, Guerrero Rodríguez, Juan de Dios, Ortiz, Enrique, Rosas-Rosas, Octavio César, Quero Carrillo, Adrián Raymundo, García-Fragoso, Ana Laura, Guerrero Rodríguez, Juan de Dios, Ortiz, Enrique, Rosas-Rosas, Octavio César, and Quero Carrillo, Adrián Raymundo

Abstract

The tropical dry forest is characterized by its high diversity andbiological richness, which provides several environmental services; nonetheless,in recent years, some uncontrolled human activities contribute to its degradationand loss. This is an ecosystem of the Sierra del Tentzo State Reserve, in theState of Puebla, México, where the use of natural resources is the main source ofincome and livelihood of its inhabitants. Since there is controversy about the effectof grazing, the present study was proposed, whose objective was to determinethe diversity of arboreal species in areas with and without grazing. A samplingof trees and shrubs with a height greater than or equal to one meter was carriedout in the municipalities of Huehuetlán El Grande and Huaquechula, establishing300 quadrants for each zone, where samples of each species were taken. Usingthe non-parametric Chao 2 estimator and the Shannon-Wiener index (H’) diversity,dominance and equity were determined, while species richness was obtained withaccumulation curves. The values of H’ for the areas with and without grazing werehigh, but several of the species reported are of secondary succession, an indicativeof disturbance, showing that grazing and the activities carried out there are havingan important impact on the structure and functionality of the native arboreal-shrubdiversity., La selva baja caducifolia tiene alta diversidad y riqueza biológica, que brinda varios servicios ambientales, no obstante, en los últimos años, algunas actividades humanas sin control contribuyen a su degradación y pérdida. Este es un ecosistema propio de la Reserva Estatal Sierra del Tentzo, en el estado de Puebla, México, donde el uso de recursos naturales es fuente de ingreso y sustento de sus habitantes. Dado que existe controversia sobre la afectación de la ganadería por el pastoreo, el objetivo del presente estudio fue determinar la diversidad de especies arbóreas en zonas con y sin pastoreo. Se muestrearon árboles y arbustos de altura mayor o igual a un metro, en los municipios de Huehuetlán El Grande y Huaquechula, donde se establecieron 300 cuadrantes para cada zona y se tomó muestras de cada especie. Mediante el estimador no paramétrico Chao 2 y el índice Shannon-Wiener (H’) se determinó diversidad, dominancia y equidad, obteniéndose la riqueza con curvas de acumulación de especies. Los valores de H’ para las dos zonas fueron altos, pero muchas de las especies son de sucesión secundaría e indicadoras de disturbio, sugiriendo que el pastoreo y las actividades que ahí se realizan impactan de manera importante en la estructura y funcionalidad de la diversidad arbóreo-arbustiva nativa.

Published
2021

7. Figure 7 from: Lara-Galván JL, Martínez-Montoya JF, Sigala-Rodríguez JJ, Esparza-Estrada CE, Rosas-Rosas OC, Ávila-Herrera L, Barbosa AM (2020) Rattlesnake (Crotalus spp.) distribution and diversity in Zacatecas, Mexico. ZooKeys 1005: 103-132. https://doi.org/10.3897/zookeys.1005.56964

Author

Lara-Galván, Jesús Lenin, primary, Martínez-Montoya, Juan Felipe, additional, Sigala-Rodríguez, José Jesús, additional, Esparza-Estrada, Citlalli Edith, additional, Rosas-Rosas, Octavio César, additional, Ávila-Herrera, Lucía, additional, and Barbosa, A. Márcia, additional

Published
2020
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8. Supplementary material 1 from: Lara-Galván JL, Martínez-Montoya JF, Sigala-Rodríguez JJ, Esparza-Estrada CE, Rosas-Rosas OC, Ávila-Herrera L, Barbosa AM (2020) Rattlesnake (Crotalus spp.) distribution and diversity in Zacatecas, Mexico. ZooKeys 1005: 103-132. https://doi.org/10.3897/zookeys.1005.56964

Author

Lara-Galván, Jesús Lenin, primary, Martínez-Montoya, Juan Felipe, additional, Sigala-Rodríguez, José Jesús, additional, Esparza-Estrada, Citlalli Edith, additional, Rosas-Rosas, Octavio César, additional, Ávila-Herrera, Lucía, additional, and Barbosa, A. Márcia, additional

Published
2020
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9. Figure 3 from: Lara-Galván JL, Martínez-Montoya JF, Sigala-Rodríguez JJ, Esparza-Estrada CE, Rosas-Rosas OC, Ávila-Herrera L, Barbosa AM (2020) Rattlesnake (Crotalus spp.) distribution and diversity in Zacatecas, Mexico. ZooKeys 1005: 103-132. https://doi.org/10.3897/zookeys.1005.56964

Author

Lara-Galván, Jesús Lenin, primary, Martínez-Montoya, Juan Felipe, additional, Sigala-Rodríguez, José Jesús, additional, Esparza-Estrada, Citlalli Edith, additional, Rosas-Rosas, Octavio César, additional, Ávila-Herrera, Lucía, additional, and Barbosa, A. Márcia, additional

Published
2020
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10. Supplementary material 3 from: Lara-Galván JL, Martínez-Montoya JF, Sigala-Rodríguez JJ, Esparza-Estrada CE, Rosas-Rosas OC, Ávila-Herrera L, Barbosa AM (2020) Rattlesnake (Crotalus spp.) distribution and diversity in Zacatecas, Mexico. ZooKeys 1005: 103-132. https://doi.org/10.3897/zookeys.1005.56964

Author

Lara-Galván, Jesús Lenin, primary, Martínez-Montoya, Juan Felipe, additional, Sigala-Rodríguez, José Jesús, additional, Esparza-Estrada, Citlalli Edith, additional, Rosas-Rosas, Octavio César, additional, Ávila-Herrera, Lucía, additional, and Barbosa, A. Márcia, additional

Published
2020
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11. Figure 4 from: Lara-Galván JL, Martínez-Montoya JF, Sigala-Rodríguez JJ, Esparza-Estrada CE, Rosas-Rosas OC, Ávila-Herrera L, Barbosa AM (2020) Rattlesnake (Crotalus spp.) distribution and diversity in Zacatecas, Mexico. ZooKeys 1005: 103-132. https://doi.org/10.3897/zookeys.1005.56964

Author

Lara-Galván, Jesús Lenin, primary, Martínez-Montoya, Juan Felipe, additional, Sigala-Rodríguez, José Jesús, additional, Esparza-Estrada, Citlalli Edith, additional, Rosas-Rosas, Octavio César, additional, Ávila-Herrera, Lucía, additional, and Barbosa, A. Márcia, additional

Published
2020
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12. Figure 11 from: Lara-Galván JL, Martínez-Montoya JF, Sigala-Rodríguez JJ, Esparza-Estrada CE, Rosas-Rosas OC, Ávila-Herrera L, Barbosa AM (2020) Rattlesnake (Crotalus spp.) distribution and diversity in Zacatecas, Mexico. ZooKeys 1005: 103-132. https://doi.org/10.3897/zookeys.1005.56964

Author

Lara-Galván, Jesús Lenin, primary, Martínez-Montoya, Juan Felipe, additional, Sigala-Rodríguez, José Jesús, additional, Esparza-Estrada, Citlalli Edith, additional, Rosas-Rosas, Octavio César, additional, Ávila-Herrera, Lucía, additional, and Barbosa, A. Márcia, additional

Published
2020
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13. Supplementary material 7 from: Lara-Galván JL, Martínez-Montoya JF, Sigala-Rodríguez JJ, Esparza-Estrada CE, Rosas-Rosas OC, Ávila-Herrera L, Barbosa AM (2020) Rattlesnake (Crotalus spp.) distribution and diversity in Zacatecas, Mexico. ZooKeys 1005: 103-132. https://doi.org/10.3897/zookeys.1005.56964

Author

Lara-Galván, Jesús Lenin, primary, Martínez-Montoya, Juan Felipe, additional, Sigala-Rodríguez, José Jesús, additional, Esparza-Estrada, Citlalli Edith, additional, Rosas-Rosas, Octavio César, additional, Ávila-Herrera, Lucía, additional, and Barbosa, A. Márcia, additional

Published
2020
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14. Figure 2 from: Lara-Galván JL, Martínez-Montoya JF, Sigala-Rodríguez JJ, Esparza-Estrada CE, Rosas-Rosas OC, Ávila-Herrera L, Barbosa AM (2020) Rattlesnake (Crotalus spp.) distribution and diversity in Zacatecas, Mexico. ZooKeys 1005: 103-132. https://doi.org/10.3897/zookeys.1005.56964

Author

Lara-Galván, Jesús Lenin, primary, Martínez-Montoya, Juan Felipe, additional, Sigala-Rodríguez, José Jesús, additional, Esparza-Estrada, Citlalli Edith, additional, Rosas-Rosas, Octavio César, additional, Ávila-Herrera, Lucía, additional, and Barbosa, A. Márcia, additional

Published
2020
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15. Supplementary material 8 from: Lara-Galván JL, Martínez-Montoya JF, Sigala-Rodríguez JJ, Esparza-Estrada CE, Rosas-Rosas OC, Ávila-Herrera L, Barbosa AM (2020) Rattlesnake (Crotalus spp.) distribution and diversity in Zacatecas, Mexico. ZooKeys 1005: 103-132. https://doi.org/10.3897/zookeys.1005.56964

Author

Lara-Galván, Jesús Lenin, primary, Martínez-Montoya, Juan Felipe, additional, Sigala-Rodríguez, José Jesús, additional, Esparza-Estrada, Citlalli Edith, additional, Rosas-Rosas, Octavio César, additional, Ávila-Herrera, Lucía, additional, and Barbosa, A. Márcia, additional

Published
2020
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16. Supplementary material 4 from: Lara-Galván JL, Martínez-Montoya JF, Sigala-Rodríguez JJ, Esparza-Estrada CE, Rosas-Rosas OC, Ávila-Herrera L, Barbosa AM (2020) Rattlesnake (Crotalus spp.) distribution and diversity in Zacatecas, Mexico. ZooKeys 1005: 103-132. https://doi.org/10.3897/zookeys.1005.56964

Author

Lara-Galván, Jesús Lenin, primary, Martínez-Montoya, Juan Felipe, additional, Sigala-Rodríguez, José Jesús, additional, Esparza-Estrada, Citlalli Edith, additional, Rosas-Rosas, Octavio César, additional, Ávila-Herrera, Lucía, additional, and Barbosa, A. Márcia, additional

Published
2020
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17. Supplementary material 5 from: Lara-Galván JL, Martínez-Montoya JF, Sigala-Rodríguez JJ, Esparza-Estrada CE, Rosas-Rosas OC, Ávila-Herrera L, Barbosa AM (2020) Rattlesnake (Crotalus spp.) distribution and diversity in Zacatecas, Mexico. ZooKeys 1005: 103-132. https://doi.org/10.3897/zookeys.1005.56964

Author

Lara-Galván, Jesús Lenin, primary, Martínez-Montoya, Juan Felipe, additional, Sigala-Rodríguez, José Jesús, additional, Esparza-Estrada, Citlalli Edith, additional, Rosas-Rosas, Octavio César, additional, Ávila-Herrera, Lucía, additional, and Barbosa, A. Márcia, additional

Published
2020
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18. Figure 5 from: Lara-Galván JL, Martínez-Montoya JF, Sigala-Rodríguez JJ, Esparza-Estrada CE, Rosas-Rosas OC, Ávila-Herrera L, Barbosa AM (2020) Rattlesnake (Crotalus spp.) distribution and diversity in Zacatecas, Mexico. ZooKeys 1005: 103-132. https://doi.org/10.3897/zookeys.1005.56964

Author

Lara-Galván, Jesús Lenin, primary, Martínez-Montoya, Juan Felipe, additional, Sigala-Rodríguez, José Jesús, additional, Esparza-Estrada, Citlalli Edith, additional, Rosas-Rosas, Octavio César, additional, Ávila-Herrera, Lucía, additional, and Barbosa, A. Márcia, additional

Published
2020
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19. Supplementary material 9 from: Lara-Galván JL, Martínez-Montoya JF, Sigala-Rodríguez JJ, Esparza-Estrada CE, Rosas-Rosas OC, Ávila-Herrera L, Barbosa AM (2020) Rattlesnake (Crotalus spp.) distribution and diversity in Zacatecas, Mexico. ZooKeys 1005: 103-132. https://doi.org/10.3897/zookeys.1005.56964

Author

Lara-Galván, Jesús Lenin, primary, Martínez-Montoya, Juan Felipe, additional, Sigala-Rodríguez, José Jesús, additional, Esparza-Estrada, Citlalli Edith, additional, Rosas-Rosas, Octavio César, additional, Ávila-Herrera, Lucía, additional, and Barbosa, A. Márcia, additional

Published
2020
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20. Figure 6 from: Lara-Galván JL, Martínez-Montoya JF, Sigala-Rodríguez JJ, Esparza-Estrada CE, Rosas-Rosas OC, Ávila-Herrera L, Barbosa AM (2020) Rattlesnake (Crotalus spp.) distribution and diversity in Zacatecas, Mexico. ZooKeys 1005: 103-132. https://doi.org/10.3897/zookeys.1005.56964

Author

Lara-Galván, Jesús Lenin, primary, Martínez-Montoya, Juan Felipe, additional, Sigala-Rodríguez, José Jesús, additional, Esparza-Estrada, Citlalli Edith, additional, Rosas-Rosas, Octavio César, additional, Ávila-Herrera, Lucía, additional, and Barbosa, A. Márcia, additional

Published
2020
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22. Supplementary material 6 from: Lara-Galván JL, Martínez-Montoya JF, Sigala-Rodríguez JJ, Esparza-Estrada CE, Rosas-Rosas OC, Ávila-Herrera L, Barbosa AM (2020) Rattlesnake (Crotalus spp.) distribution and diversity in Zacatecas, Mexico. ZooKeys 1005: 103-132. https://doi.org/10.3897/zookeys.1005.56964

Author

Lara-Galván, Jesús Lenin, primary, Martínez-Montoya, Juan Felipe, additional, Sigala-Rodríguez, José Jesús, additional, Esparza-Estrada, Citlalli Edith, additional, Rosas-Rosas, Octavio César, additional, Ávila-Herrera, Lucía, additional, and Barbosa, A. Márcia, additional

Published
2020
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23. Supplementary material 2 from: Lara-Galván JL, Martínez-Montoya JF, Sigala-Rodríguez JJ, Esparza-Estrada CE, Rosas-Rosas OC, Ávila-Herrera L, Barbosa AM (2020) Rattlesnake (Crotalus spp.) distribution and diversity in Zacatecas, Mexico. ZooKeys 1005: 103-132. https://doi.org/10.3897/zookeys.1005.56964

Author

Lara-Galván, Jesús Lenin, primary, Martínez-Montoya, Juan Felipe, additional, Sigala-Rodríguez, José Jesús, additional, Esparza-Estrada, Citlalli Edith, additional, Rosas-Rosas, Octavio César, additional, Ávila-Herrera, Lucía, additional, and Barbosa, A. Márcia, additional

Published
2020
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24. Figure 9 from: Lara-Galván JL, Martínez-Montoya JF, Sigala-Rodríguez JJ, Esparza-Estrada CE, Rosas-Rosas OC, Ávila-Herrera L, Barbosa AM (2020) Rattlesnake (Crotalus spp.) distribution and diversity in Zacatecas, Mexico. ZooKeys 1005: 103-132. https://doi.org/10.3897/zookeys.1005.56964

Author

Lara-Galván, Jesús Lenin, primary, Martínez-Montoya, Juan Felipe, additional, Sigala-Rodríguez, José Jesús, additional, Esparza-Estrada, Citlalli Edith, additional, Rosas-Rosas, Octavio César, additional, Ávila-Herrera, Lucía, additional, and Barbosa, A. Márcia, additional

Published
2020
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25. Figure 8 from: Lara-Galván JL, Martínez-Montoya JF, Sigala-Rodríguez JJ, Esparza-Estrada CE, Rosas-Rosas OC, Ávila-Herrera L, Barbosa AM (2020) Rattlesnake (Crotalus spp.) distribution and diversity in Zacatecas, Mexico. ZooKeys 1005: 103-132. https://doi.org/10.3897/zookeys.1005.56964

Author

Lara-Galván, Jesús Lenin, primary, Martínez-Montoya, Juan Felipe, additional, Sigala-Rodríguez, José Jesús, additional, Esparza-Estrada, Citlalli Edith, additional, Rosas-Rosas, Octavio César, additional, Ávila-Herrera, Lucía, additional, and Barbosa, A. Márcia, additional

Published
2020
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27. Wild Turkey (Meleagris gallopavo mexicana L.) Monitoring: Innovation in Sampling and Estimator of Population Density.

Author

Clemente-Sánchez, Fernando, Rosas-Rosas, Octavio César, and Tarango-Arámbula, Luis Antonio

Subjects
TURKEYS, WILD turkey, POPULATION density, STATISTICAL sampling, FEEDLOTS
Abstract

Objective: To estimate the population of wild turkey (Meleagris gallopavo, mexicana) and its density in ecosystems of distribution. Design/methodology/approach: A method based on random sampling with a population density estimator was designed. The design was based on the observation of wild turkeys that go to attraction sites (feedlots) of 2,500 m² (50×50 m) counted in 12 h a day, three consecutive days. For all the random sites, the criterion of one site for every 300 ha of surface under study was used. The study was carried out on March 1, 2 and 3, 2019, in 3,000 ha of pine-oak forest, in Monte Escobedo, Zacatecas, Mexico. Observations were made from a fixed point 25 m away from each site, from 6:00 a.m. to 6:00 p.m. The attraction sites were located at a random distance within 10 systematically fixed transects in the study area. Results: The results showed a population of 66 wild turkeys in 3,000 ha, with a density of 0.022 wild turkeys ha-1. Study Limitations/Implications: The application of the method was useful for monitoring wild turkey in the pine-oak forest, showing that it is a method that does not affect the population, which does not require long sampling times, is reliable, low-cost, and easy to carry out. The method is not reliable in ecosystems that do not allow the location of high visibility sites. Findings/Conclusions: Considering the distribution of wild turkey in Mexico, the method is a new alternative applicable to population studies of wild turkey. [ABSTRACT FROM AUTHOR]

Published
2021
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28. Composición de la dieta invernal del pato golondrino (Anas acuta) en las Ciénagas del Lerma, Estado de México.

Author

Quijano Hernández, Sandra, Bravo Vinaja, María Guadalupe, Colón Quezada, David, Alcántara Carbajal, José Luis, Rosas Rosas, Octavio César, and Ramírez Martínez, Laura Jocelyn

Abstract

Copyright of Huitzil: Journal of Mexican Ornithology / Revue d'Ornithologie Mexicaine is the property of Sociedad para el Estudio y Conservacion de las Aves en 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.)

Published
2021
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37. Density of threatened ocelot Leopardus pardalis in the Sierra Abra-Tanchipa Biosphere Reserve, San Luis Potosí, Mexico.

Author

Martínez-Hernández, Abraham, Rosas-Rosas, Octavio César, Clemente-Sánchez, Fernando, Tarango-Arámbula, Luis Antonio, Palacio-Núñez, Jorge, Bender, Louis C., and Herrera-Haro, José Guadalupe

Subjects
*OCELOT, *ANIMAL population density, *SEASONAL effects on wildlife, *BIOSPHERE reserves
Abstract

There is little information on the population status of the ocelot Leopardus pardalis in Mexico. In the Sierra Abra-Tanchipa Biosphere Reserve, in San Luis Potosí, ocelots are affected by habitat loss and fragmentation as a result of increased agricultural development. We used photographic identification in camera-trapping capture–recapture surveys to determine population abundance and density during the dry season and subsequent early and late humid seasons during April 2011–March 2012. We recorded 80 photographs of 15 individuals (10 males, one female, and four of undetermined sex) in 7,786 camera-days. Abundance was estimated using a closed capture heterogeneity model, yielding an estimated population of 9 ± SE 3 in the dry season and 21 ± SE 8 and 15 ± SE 5 during the subsequent early and late humid seasons, respectively. Spatially explicit density estimates were 0.04 and 0.03–0.18 individuals per km2 for the dry and humid seasons, respectively, and were similar (P > 0.612) among seasons. Peaks in ocelot activity occurred during 20.00–04.00. We conclude that the ocelots of the Sierra Abra-Tanchipa Reserve have a low population density and may face geographical and biological isolation as a result of habitat conversion. Continued monitoring and improved understanding of the movements and habitat preferences of ocelots are necessary to ensure their continued persistence, and connectivity between this population and others in north-east Mexico. [ABSTRACT FROM AUTHOR]

Published
2015
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38. USE OF PREY BY SYMPATRIC BOBCAT (LYNX RUFUS) AND COYOTE (CANIS LATRANS) IN THE IZTA-POPO NATIONAL PARK, MEXICO.

Author

MARTÍNEZ GARCÍA, JOSÉ ANTONIO, MENDOZA MARTÍNEZ, GERMÁN D., PLATA P., FERNANDO X., ROSAS ROSAS, OCTAVIO CÉSAR, TARANGO ARÁMBULA, LUÍS ANTONIO, and BENDER, LOUIS C.

Subjects
*PREDATION, *SYMPATRY (Ecology), *BOBCAT, *COYOTE, *NATIONAL parks & reserves, *CARNIVOROUS animals, *COMPETITION (Biology)
Abstract

Para investigar las diferencias de dieta de dos depredadores competidores coexistentes, determinamos las dietas de linces (Lynx rufus) y coyotes (Canis latrans) a partir de excrementos en el Parque Nacional Izta-Popo, en el centro de México. El uso de presas por linces y coyotes mostró un índice de Pianka de traslape de 0.94, mucho más alto que en otros estudios de dieta de estas dos especies. La dieta de lince consisti ó principalmente en el conejo de Florida (Sylvilagus floridanus; 33.7%), roedores (22.7%), conejo montés (S. cunicularius; 13.1%), el conejo de los volcanes endémico y en peligro de extinci ón (Romerolagus diazi, 12.5%), la tuza (Pappogeomys merriani; 9.3%) y la gallinita de monte (Dendrortyx macroura; 1.4%). La dieta del coyote incluyó el conejo de Florida (43.8%), roedores (15.7%), el conejo montés (12.0%), la tuza (6.4%) y el conejo de los volcanes (5.5%). [ABSTRACT FROM AUTHOR]

Published
2014

39. Conservation state of rattlesnake (Crotalus spp.) in Zacatecas, Mexico

Author

Lara Galván, Jesús Lenin, Martínez-Montoya, Juan Felipe, Sigala-Rodríguez, José Juan, Rosas-Rosas, Octavio César, and Enes-Barbosa, Ana Márcia

Subjects
Biological diversity, Zacatecas, Crotalus, Conservation, Wildlife, Rattlesnakes, IMRN, Species distribution, Ethnobiology
Abstract

Regarding herpetofaunal diversity, Mexico has an exceptional performance, especially since it is the country with the greatest number of venomous reptiles in the world. The Crotalus genus is well represented in the country, with 90 % of the species of the genus distributed throughout its territory. These organisms are of high interest from an ecological point of view, as they are catalogued as natural plague controllers, and also in terms of biology and the relationship between distribution patterns and species diversity. Additionally, it is noteworthy to highlight their key role in the cultural, social and alimentary fields, due to these organisms feature that many stories, beliefs, myths and realities around of them. All the aforementioned aspects make rattlesnakes an ideal study group. Therefore, this project aimed at gaining insight into the actual and potential distribution of the nine Crotalus species present in Zacatecas, which was possible thanks to the use of species distribution modelling that enabled the creation of potential distribution maps. These were useful to determine those areas with highest and lowest diversity in a state scale for each of the nine species. This information was subsequently utilised to investigate those zones with outstanding distribution potential, where new occurrences of these organisms were registered and further information concerning their ecology, behaviour biology, local knowledge and traditional uses was gathered. The municipalities of Fresnillo, Sombrerete and Valparaíso were found to exhibit the largest amount of species, among which C. atrox, C. lepidus, C. molossus and C. scutulatus were the most frequently spotted ones in the entity. Finally, the principal medicinal and commercial uses of these species were identified, and a collection of myths and beliefs around these organisms in all the visited localities was compiled. This constitutes a first approach to the conservation state of these organisms in Zacatecas., Thesis. M. Sc. in Innovation in Natural Resources Management, Colegio de Postgraduados, Campus San Luis Potosí, 2018

Published
2019
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