La Lista Roja de los Ecosistemas Terrestres de Colombia

Etter, Andrés; Andrade, A. G. de; Amaya, Paula; Arévalo, Paulo

doi:10.21068/b001.2015.206

Cited by 30 publications

(38 citation statements)

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“…Habitat loss continues to stand out as the main threat for B. pandi. This fact has significant importance in conservation issues because the Andean forest is one of the most threatened ecosystems by human activities in Colombia (Etter et al, 2018). Therefore, despite our observations of a healthy and stable salamander population that showed high population density and constant recruitment in the municipalities of Supatá, Guaduas, and Villeta, 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.…”

Section: Discussionmentioning

confidence: 99%

“…Geographic distributions of fauna in this biome are often restricted and endemism is common (Lynch & Suárez-Mayorga, 2002). Andean forests are among the most threatened habitats in the country due to the drastic transformation of native vegetation by urban growth, mining, agriculture, and cattle ranching (Etter et al, 2018). As a consequence and given that most threatened Colombian amphibian species are concentrated between 1,800-3,600 m a.s.l., habitat loss is the main threat shared by most species.…”

Section: Introductionmentioning

confidence: 99%

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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%

Section: Introductionmentioning

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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“…Debido a los profundos cambios que han ocurrido en las coberturas naturales de los llanos orientales colombianos (Romero-Ruiz et al 2012, Etter et al 2017, hace más de 40 años la riqueza de mamíferos era probablemente mayor que la de la actualidad (Boshell, 1938, Morales et al 1979, Wells et al 1981, D'Alessandro et al 1984. En efecto, la riqueza de mamíferos no voladores en la Orinoquia colombiana se ha registrado que tiende a disminuir conforme aumenta la intervención humana (Guzmán-Lenis & Camargo-Sanabria, 2004, Torres, 2010, González, 2014, González-Jiménez & Choque-Ladino, 2015, Pardo-Vargas & Payán-Garrido, 2015.…”

Section: Discussionunclassified

Mamíferos no voladores en un campus universitario de la Orinoquia colombiana

Alfonso

Sánchez

2020

MaNo

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En la Orinoquia colombiana la transformación del paisaje es evidente y se ha sugerido que los campus de instituciones educativas ayudan a conservar la biodiversidad. Por ello estudiamos la composición y la riqueza de los mamíferos no voladores de un campus de la Orinoquia colombiana; además evaluamos la efectividad de tres diferentes cebos. El campus incluye construcciones, bosques secundarios y áreas rurales. Usamos tres tipos de trampas (trampas Sherman, trampas Tomahawk, trampas artesanales tipo Tomahawk) y cámaras trampa; complementamos el inventario con recorridos y entrevistas. Registramos 18 especies y los órdenes con mayor riqueza fueron Rodentia y Primates, mientras que Didelphis marsupialis fue la especie más registrada. El tocino fue más efectivo que la yuca o el maíz para capturar mamíferos. A pesar de las perturbaciones presentes en el campus, éste aun preserva características que, al menos por el momento, le permiten ser hábitat para varias especies de mamíferos silvestres.

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“…We explored agreements between human impact categories and categories for IUCN ecosystem risk of collapse (Etter and Arevalo, 2016) All data were adjusted to raster data of 300 m resolution using MAGNA-SIRGAS / Colombia Bogota zone EPSG projection; LHFI calculations and spatial analyses were conducted in ESRI ArcGIS 10.7 and statistical analysis were conducted with R version 3.5.3.…”

Section: Change Analysis and Its Relationship With Ecosystem Risk Of mentioning

confidence: 99%

Spatiotemporal Evaluation of The Human Footprint in Colombia: Four Decades of Anthropic Impact in Highly Biodiverse Ecosystems

Ayram

Etter

Timote

et al. 2020

Preprint

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19The maintenance of biodiversity and the capacity of natural systems to provide goods and 20 services for people is affected on different levels by the intensity of human activities on 21 ecosystems. In this study, we apply a Legacy-adjusted Human Footprint Index (LHFI) to 22 evaluate the spatiotemporal variation of anthropic impact in Colombia in 1970, 1990, 2000 23 and 2015. We identified hotspots of change in LHFI and we evaluated the intensity of 24 anthropic pressures in natural regions and ecosystems. We found that LHFI in Colombia 25 increased between 1970 and 2015. The Andean and Caribbean regions presented the highest 26 levels of anthropic impact, remaining stable over time. Hotspots of change were mainly 27 located in the following regions: Andean (Antioquia, Cauca and Valle del Cauca states), 28 Amazon (Amazonas, parts of Meta, Guaviare and Putumayo states) and Orinoco (Casanare 29 and parts of Meta and Vichada states). In addition, ecosystems that under the IUCN 30 ecosystem risk categories are Critically Endangered (CR) and Vulnerable (VU) were the 31 most affected by a high level of human impact. Spatiotemporal evaluation of the human 32 footprint in Colombia provides new insights about trends in human pressures on ecosystems 33 and constitutes an analytical tool with high potential for harmonizing land use planning and 34 biodiversity conservation.35 36

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La Lista Roja de los Ecosistemas Terrestres de Colombia

Cited by 30 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

Mamíferos no voladores en un campus universitario de la Orinoquia colombiana

Spatiotemporal Evaluation of The Human Footprint in Colombia: Four Decades of Anthropic Impact in Highly Biodiverse Ecosystems

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