.Palacios-Aguilar et al. 2016. Distributional records Guerrero

We present an updated checklist of the amphibians and reptiles for the state of Guerrero, Mexico. This list is based on bibliographic records, the revision of scientific collections and the authors' field notes. The herpetofauna of the state includes 259 species (78 amphibians, 181 reptiles), of which three are introduced. The conservation status of all native species was assessed using three independent systems (NOM-059, IUCN and EVS). Finally, the geographic distribution of amphibians and reptiles is discussed in the context of both the biogeographic provinces within the state and the influence of road location on specimen collection patterns.

We present an updated checklist of the amphibians and reptiles for the state of Guerrero, Mexico. This list is based on bibliographic records, the revision of scientific collections and the authors' field notes. The herpetofauna of the state includes 259 species (78 amphibians, 181 reptiles), of which three are introduced. The conservation status of all native species was assessed using three independent systems (NOM-059, IUCN and EVS). Finally, the geographic distribution of amphibians and reptiles is discussed in the context of both the biogeographic provinces within the state and the influence of road location on specimen collection patterns.

1993

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This document is a step forward in our knowledge of the herpetofaunal diversity of Mexico and, in particular, the state of Nayarit. The study is the based on field observations, published literature, and information from national and international preserved collections. Our survey was undertaken during 2014–2017. A total of 51 species of amphibians and reptiles in three orders, 27 families, and 45 genera is reported. The family Colubridae is the most diverse, with eight species. A total of 39 species were found to be present in the Reserva de la Biosfera de Marismas Nacionales (RBMN). This study was conducted to detail the composition of the species present within this protected natural area and outside its borders, which area is part of the municipality of Tecuala, and to help fill in gaps in our knowledge of the distribution of various herpetofaunal species in the municipality.

1993

Sampling of amphibians and reptiles was conducted in the municipality of Hostotipaquillo in the northern part of the state of Jalisco. After six months of fieldwork 60 species were registered. This field work was conducted to determine the previously undocumented species richness of the municipality.

ZooKeys , 2023

The growth in our knowledge of the diversity of the herpetofauna of Mexico has occurred over the period of approximately 445 years from the work of Francisco Hernández to that of a broad multinational array of present-day herpetologists. The work of this huge group of people has established Mexico as one of the most significant centers of herpetofaunal biodiversity in the world. This status is the result of a complex orography, in addition to diverse habitats and environments and the biogeographic history of Mexico. The current herpetofauna consists of 1,421 native and introduced species, allocated to 220 genera, and 61 families. This figure is comprised of 1,405 native species and 16 non-native species (as of April 2023). The non-native species include two anurans, 13 squamates, and one turtle. The level of endemism is very high, presently lying at 63%, with this level expected to increase with time. Species richness varies among the 32 federal entities in the country, from a low of 50 in Tlaxcala to a high of 492 in Oaxaca. Amphibian species richness by state-level can be envisioned as comprising three levels of low, medium, and high, with the lowest levels occurring in the Peninsula of Baja California, a group of seven states in north-central and central Mexico, and a group of three states in the Yucatan Peninsula, with the highest levels occupying the southern states of Guerrero, Puebla, Veracruz, Oaxaca, and Chiapas, and the medium level in the remaining states of the country. Reptile species richness also can be allocated to three categories, with the lowest level occupying Baja California Sur, a group of central states, and the states of the Yucatan Peninsula, and the highest level found in a cluster of the states of Veracruz, Guerrero, Oaxaca, and Chiapas. Knowledge of the Mexican herpetofauna will continue to grow with additional studies on systematics, conservation, and the construction of checklists at various levels.

Bulletin of the Chicago Herpetological Society, 2018

(all photographs depict specimens and habitat found in the municipality of Compostela) Abstract With the objective of increasing our knowledge on the herpetological composition of the municipality of Compostela, we performed surveys in different types of vegetation during the period from 2013 to 2016. This is our second survey for a particular municipality of the state. Based on the information obtained, we here report our findings of 71 species (21 amphibians and 50 reptiles) in four orders, 29 families and 54 genera. The most diverse family is the Colubridae, with 13 species.

Bulletin of the Chicago Herpetological Society 54(10):205-213, 2019, 2019

From 2011 to 2019, we visited 11 localities within the municipality of Huajicori in the state of Nayarit, Mexico, adjacent to natural vegetation such as low tropical deciduous forest, oak forest, oak-pine forest, and pine forest. We have found 20 amphibian and 35 reptile species, for a total of 55 species, with 30 endemic to the country. Twenty of these species are categorized as protected in some way under the Norma Official Mexicana NOM-059-SEMARNAT-2010. By the IUCN two species are listed as vulnerable (VU), one as near threatened (NT), three with insufficient data (DD), and 12 reptile species are given no evaluation (NE). Thirty-five species are found to fall under the medium and high environmental vulnerability (EVS) categories. In addition, 22 of the amphibian and reptile species we found represent distribution extensions for the interior of the state. The sampling we carried out will increase the knowledge of the herpetological diversity in this area of Nayarit. Resumen Del 2011 al 2019, se han realizado varios muestreos en 11 localidades del municipio de Huajicori en el estado de Nayarit, México, adyacentes a vegetaciones naturales como selva tropical caducifolia/selva baja caducifolia, bosque de encino, bosque de encino-pino y bosque de pino. Se han registrado un total de 20 anfibios y 35 reptiles en total 55 especies, con 30 endémicas al país. 20 de esas especies presentan categoría por NOM-059-SEMARNAT, dos especies presentaron categoría de vulnerabilidad (VU: siglas en inglês), una como casi amenaza (NT: siglas en inglés), tres en datos deficientes (DD: siglas en inglés) y 12 No evaluadas (NE: siglas en inglés) por la IUCN. 35 especie se reportan dentro de la categoría de mediana y alta de vulnerabilidad ambiental (EVS). Por otra parte, 22 especies de herpetofauna representan ampliaciones de distribución para el interior del estado. El muestreo realizado en el área incrementará el conocimiento herpetológico de la diversidad en esta zona para el estado.