Los anfibios en Colombia

Galvis, Andrés Rymel Acosta

doi:10.21068/b001.2015.105

Cited by 20 publications

(32 citation statements)

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“…The new localities add to the known range of Bolitoglossa pandi and the detailed examination of the Supatá population allowed not only the expansion of knowledge about the distribution and natural history traits of this species but also the reassessment of its conservation status and the validation of its characters for taxonomic identification vis-a-vis its congeners. Despite efforts done by herpetologists who sought to characterize and describe the Andean amphibians in the second half of the 20th century and the beginning of the 21st (Ruiz-Carranza, Ardila-Robayo & Lynch, 1996;Lynch, Ruiz-Carranza & Ardila-Robayo, 1997;Lynch, 1999;Arroyo, Jerez & Ramírez-Pinilla, 2003;Acosta-Galvis, 2015;Acosta-Galvis, 2020), large areas of the western slope of the Cordillera Oriental of Colombia still lack intensive sampling. Therefore, the known distribution of B. pandi as well as other Andean amphibians is still fragmentary.…”

Section: Discussionmentioning

confidence: 99%

Distribution, habitat suitability, conservation state and natural history of endangered salamanderBolitoglossa pandi

Angarita–Sierra

Bonilla-Gómez

Sánchez

et al. 2020

PeerJ

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Background Pandi’s mushroom-tongue salamander (Bolitoglossa pandi) is one of the threatened amphibians in South America, as well as a flagship species for the Colombian conservation agenda. This species is endemic to the Andean cloud forests of the western slope of the Cordillera Oriental of Colombia, occurring only in the department of Cundinamarca within a narrow elevational range. At night, B. pandi can be seen perching on the upper side of leaves at heights ranging from ground level to 2.5 m. During the day, it can be found under leaf litter or cover objects. Few studies have provided relevant information that can help the Colombian government to formulate lines of action for the conservation of this species; consequently, its threat assessments so far have been based on very limited information. Methods We conducted surveys for salamanders in four municipalities of Cundinamarca, Colombia, using two approaches: visual encounter surveys (Guaduas and Villeta) and the basic sampling protocol for single-species occupancy modeling (Supatá and Venecia). Multivariate analyses were employed to explore the correlation between habitat structure and natural history traits, abundance, and detection/non-detection of B. pandi. We evaluated the B. pandi activity pattern through kernel density curves for each sampling occasion and explored the variability of salamander abundance during their activity period by performing a nested ANOVA. Results We report the discovery of two new populations of B. pandi, which represent the most northwestern records known. A significant correlation between body length, body mass, and habitat structure was observed. Multivariate analyses indicated that leaf litter depth, mean temperature, percent vegetation cover, and altitude were the habitat variables that together explained 60.3% of the B. pandi abundance variability, as well as the main determinants of its optimal habitat. Bolitoglossa pandi exhibits an activity pattern characterized by two main activity peaks, in which niche time-partitioning was observed. Across the surveyed area, we found a healthy, stable, highly dense population of B. pandi (>1,300 individuals), with seasonal variability between development stages. Discussion Given the high habitat specificity of B. pandi, the species is highly vulnerable to local changes. Thus, we recommend that B. pandi be retained as Endangered (EN) on the IUCN Red List, based on the IUCN Criterion B, given its restricted extent of occurrence (ca. 2,500 km2) and the ongoing threats from agriculture, cattle ranching, logging, and urban development, which continue to reduce its suitable habitat.

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Section: Discussionmentioning

confidence: 99%

Distribution, habitat suitability, conservation state and natural history of endangered salamanderBolitoglossa pandi

Angarita–Sierra

Bonilla-Gómez

Sánchez

et al. 2020

PeerJ

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“…The new localities add to the known range of Bolitoglossa pandi and the detailed examination of the Supatá population allowed not only the expansion of knowledge about the distribution and natural history traits of this species but also the reassessment of its conservation status and the validation of its characters for taxonomic identification vis-a-vis its congeners. Despite efforts done by herpetologists who sought to characterize and describe the Andean amphibians in the second half of the 20 th century and the beginning of the 21 st (Ruiz-Carranza, Ardila-Robayo & Lynch, 1996;Lynch, Ruiz-Carranza & Ardila-Robayo,1997;Lynch 1999;Arroyo, Jerez, & Ramírez-Pinilla, 2003;Acosta-Galvis, 2015;Acosta-Galvis et al, 2020), large areas of the western slope of the Cordillera Oriental of Colombia still lack intensive sampling. Therefore, the known distribution of B. pandi as well as other Andean amphibians is still fragmentary.…”

Section: Discussionmentioning

confidence: 99%

“…This genus is the most diverse and geographically widespread lineage of plethodontid salamanders inhabiting the Western Hemisphere. Currently, Bolitoglossa comprises 134 species, 24 of which reside in Colombia across several types of tropical habitats (Wake, 2017;Acosta-Galvis, 2020;Frost, 2020). Many species of Bolitoglossa exhibit restricted geographic ranges [e.g.…”

Section: Introductionmentioning

confidence: 99%

Peer Review #2 of "Distribution, habitat suitability, conservation state and natural history of endangered salamander Bolitoglossa pandi (v0.2)"

Hernández¹

2020

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Background. Pandi's mushroom-tongue salamander (Bolitoglossa pandi) is one of the threatened amphibians in South America, as well as a flagship species for the Colombian conservation agenda. This species is endemic to the Andean cloud forests of the western slope of the Cordillera Oriental of Colombia, occurring only in the department of Cundinamarca within a narrow elevational range. At night, B. pandi can be seen perching on the upper side of leaves at heights ranging from ground level to 2.5 m. During the day, it can be found under leaf litter or cover objects. Few studies have provided relevant information that can help the Colombian government to formulate lines of action for the conservation of this species; consequently, its threat assessments so far have been based on very limited information. Methods. We conducted surveys for salamanders in four municipalities of Cundinamarca, Colombia, using two approaches: visual encounter surveys (Guaduas and Villeta) and the basic sampling protocol for single-species occupancy modeling (Supatá and Venecia). Multivariate analyses were employed to explore the correlation between habitat structure and natural history traits, abundance, and detection / non-detection of B. pandi. We evaluated the B. pandi activity pattern through kernel density curves for each sampling occasion and explored the variability of salamander abundance during their activity period by performing a nested ANOVA. Results. We report the discovery of two new populations of B. pandi, which represent the most northwestern records known. A significant correlation between body length, body mass, and habitat structure was observed. Multivariate analyses indicated that leaf litter depth, mean temperature, percent vegetation cover, and altitude were the habitat variables that together explained 60.3% of the B. pandi abundance variability, as well as the main determinants of its optimal habitat. Bolitoglossa pandi exhibits an activity pattern characterized by two main activity peaks, in which niche time-partitioning was observed. Across the surveyed area, we found a healthy, stable, highly dense population of B. pandi (>1300 individuals), with seasonal variability between development stages. Discussion. Given the high habitat specificity of B. pandi, the species is highly vulnerable to local changes. Thus, we recommend that B. pandi be retained as Endangered (EN) on the IUCN Red List, based

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“…Most of the participants associated frogs and toads with the amphibian group, but very few people managed to classify salamanders and caecilians with this taxonomic group. The foregoing represents a challenge to increase the state of knowledge of the 27 salamanders and 33 caecilians of Colombia [49], species that have low abundances, are highly cryptic (in the case of salamanders) or live under the ground (in the case of caecilians). Another challenge for future environmental education schemes is that many people classi ed lizards, turtles and snakes as amphibians, which…”

Section: Knowledgementioning

confidence: 99%

Local Community Knowledge and Perceptions towards Amphibians in Urban and Rural Settings: Tools for Biological Conservation

Vergara-Ríos

Montes-Correa

Urbina‐Cardona

et al. 2020

Preprint

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Background Human perceptions determine the degree to which people can coexist with biodiversity. It is, therefore, important to identify the sociodemographic factors that determine these local perceptions to adjust amphibian conservation strategies. In this research, the effect of the urban or rural location where people live, as well as their gender, age and educational level, concerning the knowledge and perceptions about amphibians was determined.Methods The data were collected through individual semi-structured surveys, which sought to evaluate changes in the perceptions, of 401 participants, about amphibians. We measured seven response variables through the Likert scale, which ranges from 1 (totally disagree) to 5 (totally agree): composition of taxonomic groups, number of known taxonomic groups, species composition of anurans, number of species of anurans, level of importance of amphibians in nature, positive perceptions about amphibians and negative beliefs about amphibians. For each response variable, a Bray-Curtis matrix was generated and multivariate analysis of variance (PERMANOVA).Results Ninety-two percent of people correctly recognized frogs and toads as amphibians, but there was confusion in classifying caecilians and salamanders within this group, or including reptiles (lizards, turtles and snakes) within the group of amphibians. This confusion was more evident for women from urban locality. No one recognized the five native species shown in the study, although the inhabitants of the rural locality recognized more species than those of the urban locality. Positive perceptions of amphibians varied between urban and rural locality for young adults, people with a high school education level, and people without formal education. Negative beliefs varied between urban and rural locations for women, adolescents, young adults, and professionals with undergraduate studies. Half of the people accepted information on the conservation of amphibians.Conclusion Positive perceptions of people about amphibians should be used as a flag to strengthen environmental educational strategies that seek to change negative attitudes about this group. Field activities are crucial to consolidating the positive perceptions of people about amphibians, mainly in urban locations. The results suggest that amphibian conservation plans that aim to inform and educate the public should be focused differently for age groups, genders, and educational level for people in urban and rural locations.

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Los anfibios en Colombia

Cited by 20 publications

References 0 publications

Distribution, habitat suitability, conservation state and natural history of endangered salamanderBolitoglossa pandi

Distribution, habitat suitability, conservation state and natural history of endangered salamanderBolitoglossa pandi

Peer Review #2 of "Distribution, habitat suitability, conservation state and natural history of endangered salamander Bolitoglossa pandi (v0.2)"

Local Community Knowledge and Perceptions towards Amphibians in Urban and Rural Settings: Tools for Biological Conservation

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