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A system for categorizing the distribution of the Mesoamerican herpetofauna. — Larry .. The Herpetofauna of Chiapas, Mexico: composition, distribution, and. the idea of presenting a checklist of the herpetofauna of all northern Cen- .. east facing Honduras and El Salvador, the west contacting Chiapas, Mexico. Herpetofauna in the southern part of the Mexican state of Chiapas, in southern Mexico (–1, m elev.; Fig. 1). .. Scientific collections in Chiapas state; 8.

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The topography of the Sierra Madre Occidental of Chihuahua is very heterogeneous. These patterns of shared species are likely a function of the extent to which these states share habitat types. We thus again emphasize that continued and increased hefpetofauna of the herpetofauna of Chihuahua is needed to monitor the possible effects of any environmental changes.

Amphibians and reptiles of the state of Chihuahua, Mexico, with comparisons with adjoining states

Two of them in southwestern Chihuahua Phyllorhynchus browni and Pseudoficimia frontalis ; four in northeastern Chihuahua Coluber constrictorLampropeltis alternaPantherophis bairdiTantilla cucullata ; two in the northwestern part of the state Crotalus tigrisSistrurus catenatus ; and one in extreme southeastern Chihuahua Tantilla atriceps. Coniophanes imperialisC. Great Basin Naturalist Scale and species richness: Dixon for Texas; Enderson et al. Flores-Villela noted that isolation and the variety of environmental conditions owing to rugged topography were primary factors contributing to the radiation and differentiation of herpetofauna species see also Cihapas et al.

One species is found in SON. Anderson CG, Greenbaum E. The deepest canyon hereptofauna Urique Canyon, 1, m in depth; Batopilas Canyon is 1, m deep; Sinforosa Canyon is 1, m nerpetofauna and Copper Canyon is 1, m deep Martin chialas al. Bulletin of the American Museum of Natural History Oxford University Press is a department of herpetofauja University of Oxford.

In addition, considering patterns at different scales of values one for each spatial scalealpha areas may be distinguished, in which local richness is very important, and beta areas, in which replacement contributes more to regional richness see Supporting Information Figs S1, S2. We obtained geographical information for specimens of Mexican amphibians and reptiles from various museums.


Anura in Chihuahua, Mexico. Herpeofauna for a complex evolutionary history of mound building in the Australian nasute termites Nasutitermitinae. University of California Press, Berkeley, pp https: A test of the causal link by natural experiment. Projected impacts of climate and land-use change on the global diversity of birds. The role of spatial scale and the perception of large-scale species richness patterns.

The goal of this study is to independently analyse the influence of spatial scale on patterns of richness and endemism of Mexican amphibians and reptiles and then to compare these two groups of vertebrates.

Previous Issues – Mesoamerican Herpetology

General distribution Thirteen of the 38 species of amphibians that inhabit Hetpetofauna are endemic to Mexico, one of them Lithobates lemosespinali is restricted to a small area in the Sierra Madre Occidental of Chihuahua, and chialas Isthmura sierraoccidentalis is found only in an isolated population in the Sierra Madre Occidental of Sonora and Chihuahua. It may be expected in adjacent parts of Chihuahua.

We report the mean and standard deviations of local r 2 of GWR. Phylogenetic composition of angiosperm diversity in the cloud forests of Mexico.

As the determination of endemism in this case is referred to a political entity, it makes sense that the ranges of most endemic species do not coincide with political boundaries. In extreme northeastern Chihuahua, deep canyons, similar to those on the Pacific side of the Sierra Madre Occidental, cut into the edge of the high plains, and support their own distinct herpetofaunal assemblages.

Summary of species present in Chihuahua by family, order or suborder, and class. Smith2 Guillermo A. Among individual terrestrial vertebrate groups in Mexico, the most species-rich areas i.

Another four species range from northern Mexico to Herpetoofauna or even South America Boa sigmaMasticophis mentovariusImantodes gemmistratusand Agkistrodon bilineatus. Intersections of each class were subsequently performed with grids in Arc View 3. Photo courtesy of Marisa Ishimatsu. In addition, we recorded the conservation status of each species based on three sources: This was accomplished with the help of Arc View her;etofauna.


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Herpetofaun rattlesnake, the Massasagua Sistrurus catenatusis known from southern New Mexico Degenhardt et al. We are very thankful to two anonymous reviewers whose comments helped to greatly improve the manuscript. Locality records for individual species were checked for geographical outliers and, in cases in which it appeared that a particular record was based on a misidentification or faulty locality date, it was removed from the database.

Based on previous studies, we assume that, if the factors behind the patterns of richness and endemism differ, these patterns at different scales do not necessarily have to retain similar congruence, because the causal factors of each pattern — richness or endemism — are operating at different scales.

Amphibians and reptiles of the state of Chihuahua, Mexico, with comparisons with adjoining states

Imantodes tenuissimusLampropeltis triangulumand Stenorrhina freminvillii. Afterwards, consensus maps were sometimes trimmed based on a literature review and knowledge of the region. SmithHerpefofauna The Gila Monster Heloderma suspectum is also expected to occur in this part of the state. Eagle Mountain Publishing, LC. The level of taxonomic and biogeographical understanding and, especially, the integration of information relating to museum specimens have advanced significantly in recent years.

Plestiodon multilineatus Tanner Endemic. Areas with the highest richness of species for both amphibians and reptiles are mountainous, although they differ in location between amphibians and reptiles.

The Desert Spiny Lizard Sceloporus magister shows a range similar to that of the preceding species. Interestingly, for both groups, the lowest correlation between richness and endemism occurs at the finest spatial scale of 0. Stebbins indicates occurrence of this species in the extreme southeastern corner of Arizona, and in eastern Sonora near the Chihuahua border.

The need for continued scientific collecting: In Mexico, this latitudinal pattern of richness has been repeatedly observed e.