Range extensions of amphibians and reptiles in the southeastern part of the Lacandona rainforest, Mexico

Hernández‐Ordóñez, Omar; Arroyo‐Rodríguez, Víctor; González-Hernández, Adriana; Russildi, Giovanni; Luna-Reyes, Roberto; Martı́nez-Ramos, Miguel; Reynoso, Víctor Hugo

doi:10.1016/j.rmb.2015.04.005

Cited by 8 publications

(4 citation statements)

References 14 publications

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“…In the north is the Montes Azules Biosphere Reserve, with an area of 310,000 ha (INE, ). This region maintains one of the most species‐rich communities of amphibians in the country (Hernández‐Ordóñez et al, ), with only a few species shared with the Petén region in Guatemala, and the Mayan mountains in Belize (Hernández‐Ordóñez et al, ).…”

Section: Methodsmentioning

confidence: 99%

Species sorting and mass effect along forest succession: Evidence from taxonomic, functional, and phylogenetic diversity of amphibian communities

Hernández‐Ordóñez

Santos

Pyron

et al. 2019

Ecology and Evolution

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Species recovery after forest disturbance is a highly studied topic in the tropics, but considerable debate remains on the role of secondary forests as biodiversity repositories, especially regarding the functional and phylogenetic dimensions of biodiversity. Also, studies generally overlook how alpha and beta diversities interact to produce gamma diversity along successional gradients. We used a metacommunity approach to assess how species sorting (i.e., environmental filtering) and mass effect (i.e., source‐sink dynamics) affect 14 complementary metrics of amphibian taxonomic, functional, and phylogenetic diversity along a successional gradient in southern Mexico. As amphibians have narrow environmental tolerances and low dispersal capabilities, we expected that species sorting may be relatively more important than mass effect in structuring amphibian communities. Between 2010 and 2012, we sampled frogs, salamanders, and caecilians in 23 communities distributed in four successional stages: young (2–5 years old) and intermediate (13–28 years old) secondary forests, old‐growth forest fragments, and old‐growth continuous forest. We assessed 15 ecologically relevant functional traits per species and used a time‐calibrated molecular phylogeny. We recorded 1,672 individuals belonging to 30 species and 11 families. Supporting our expectations from the species sorting perspective, from the poorest (younger forests) to the best quality (continuous forest) scenarios, we observed (a) an increase in alpha diversity regardless of species abundances; (b) a clear taxonomic segregation across successional stages; (c) an increase in functional richness and dispersion; (d) an increase in mean phylogenetic distance and nearest taxon index; and (e) a reduction in mean nearest taxon distance. However, 10 species occurred in all successional stages, resulting in relatively low beta diversity. This supports a mass effect, where interpatch migrations contribute to prevent local extinctions and increase compositional similarity at the regional scale. Our findings indicate that amphibian metacommunities along forest successional gradients are mainly structured by species sorting, but mass effects may also play a role if high levels of forest cover are conserved in the region. In fact, secondary forests and forest fragments can potentially safeguard different aspects of amphibian diversity, but their long‐term conservation value requires preventing additional deforestation.

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Section: Methodsmentioning

confidence: 99%

Species sorting and mass effect along forest succession: Evidence from taxonomic, functional, and phylogenetic diversity of amphibian communities

Hernández‐Ordóñez

Santos

Pyron

et al. 2019

Ecology and Evolution

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“…Information about amphibian richness and composition was obtained from the following seven tropical regions to compare with our data for the study region: (a) Los Tuxtlas in Veracruz (Pérez-Higareda, Vogt, & Flores-Villela, 1987; López-Luna, in press), (b), Las Choapas municipality in Veracruz (Aguilar-López & Canseco-Márquez, 2006), (c) El Ocote Biosphere Reserve in Chiapas (Espinoza et al., 1999; Martínez & Muñoz, 1998; Muñoz-Alonso, 2010; Muñoz, Martínez-Castellanos, & Hernández-Martínez, 1996; Reynoso, Paredes-León, & González-Hernández, 2011), (d) La Lacandona in Chiapas (Hernández-Ordóñez et al., 2014; Hernández-Ordoñez et al., 2015; Muñoz-Alonso, 2010; Ochoa-Ochoa & Whittaker, 2014; Reynoso et al., 2011), (e) the Calakmul Biosphere Reserve in Campeche (Calderón-Mandujano, Cedeño-Vázquez, & Pozo, 2003; Cedeño-Vázquez, Calderón-Mandujano, & Pozo, 2006; Lee, 1996), (f) the Sian Ka'an Biosphere Reserve in Quintana Roo (Calderón-Mandujano & Moratembre, 2004; Calderón-Mandujano, Bahena-Basave, & Calmé, 2008; Lee, 1996), and (g) the Mayan Forest in Guatemala (Campbell, 1998; Lee, 1996). The data set was taxonomically standardized and updated following the online reference at the Amphibian Species of the World 6.0 website (Frost, 2015), and the identity of some species reported in the above-mentioned studies were updated based on Campbell and Savage (2000), Zaldivar-Riverón, León-Regagnon, and Nieto-Montes de Oca (2004), Streicher et al.…”

Section: Methodsmentioning

confidence: 99%

Species Diversity, Distribution, and Conservation Status in a Mesoamerican Region

Aguilar-López

Pineda

Luría‐Manzano

et al. 2016

Tropical Conservation Science

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The Uxpanapa-Chimalapas region, with one of the most extensive and best preserved tropical forest areas in Mexico, is undergoing major anthropogenic changes, and only some portions of the territory are under the protection of local communities. Although the biodiversity of the region is known to be high, no study has yet analyzed the diversity of amphibian species in the region or contributed to valuing the region in a context of amphibian conservation. Based on a review of databases and the existing scientific literature, as well as our own fieldwork, in this study, we analyze the amphibian species richness, species composition, their spatial distribution, and their conservation status in the Uxpanapa-Chimalapas region. Additionally, we compare this information with the available data for seven other tropical regions in central-northern Mesoamerica. The amphibian fauna recorded at the study region comprises 51 species, which makes it the richest tropical region in amphibian species in central-northern Mesoamerica and Mexico. Among the regions compared, this one stands out as the one with the most distinctive composition of amphibian species, sharing on average only 35% of its species with the other regions. However, it is also the region with the highest number of threatened species since one third of its species are in higher extinction risk categories. These characteristics turn the Uxpanapa-Chimalapas into a high-priority region for both Mexico and Mesoamerica, and a regional conservation plan is necessary for the immediate protection of areas where the forest is being replaced and to promote or to support community protected areas.

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“…Our results suggest that the islands of Mexico harbor 17.18% of amphibian and reptile species recorded for the country (1,292 species; Johnson et al, 2017), with this percentage contained in a small and restricted area (0.0002% of Mexico territory). To commensurate diversity, it must be considered in comparative terms with other highly diverse areas, such as the rainforest of the Biosphere Reserve Los Tuxtlas and the Lacandona region, which harbor 15% and 9.67%, respectively, of Mexican herpetofauna (Hernández-Ordóñez et al, 2015;López-Luna, 2017). Considering that the sampled insular area represents 65.14% of the entire Mexican insular territory, with 3,079 islands (considering only true islands) left to study, the species richness on islands is likely to increase.…”

Section: Composition and Conservation Statusmentioning

confidence: 99%

The insular herpetofauna of Mexico: Composition, conservation, and biogeographic patterns

Pliego‐Sánchez

Blair

Vega‐Pérez

et al. 2021

Ecology and Evolution

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Range extensions of amphibians and reptiles in the southeastern part of the Lacandona rainforest, Mexico

Cited by 8 publications

References 14 publications

Species sorting and mass effect along forest succession: Evidence from taxonomic, functional, and phylogenetic diversity of amphibian communities

Species sorting and mass effect along forest succession: Evidence from taxonomic, functional, and phylogenetic diversity of amphibian communities

Species Diversity, Distribution, and Conservation Status in a Mesoamerican Region

The insular herpetofauna of Mexico: Composition, conservation, and biogeographic patterns

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