Abundancia y Preferencia de Hábitat de<i>Bradypus variegatus</i>y<i>Choloepus hoffmanni</i>Durante la Época Seca en dos Fragmentos de Bosque Seco en Arboletes, Antioquia, Colombia

Acevedo-Quintero, Juan Fernando; Granada, Diana Sánchez; Plese, Tinka

doi:10.5537/020.012.0106

Cited by 10 publications

(10 citation statements)

References 9 publications

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“…, Acevedo‐Quintero et al . ). This discrepancy could be due to seasonal variation in leaf phenology or differences in methodology for quantifying canopy cover.…”

Section: Discussionmentioning

confidence: 97%

Multi‐scale effects of habitat structure and landscape context on a vertebrate with limited dispersal ability (the brown‐throated sloth, Bradypus variegatus)

Neam

Lacher

2018

Biotropica

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As human population, food consumption, and demand for forest products continue to rise over the next century, the pressures of land‐use change on biodiversity are projected to intensify. In tropical regions, countryside habitats that retain abundant tree cover and structurally complex canopies may complement protected areas by providing suitable habitats and landscape connectivity for a significant portion of the native biota. Species with low dispersal capabilities are among the most at risk of extinction as a consequence of land‐use change. We assessed how the spatial distribution of the brown‐throated sloth (Bradypus variegatus), a model species for a vertebrate with limited dispersal ability, is shaped by differences in habitat structure and landscape patterns of countryside habitats in north‐central Costa Rica using a multi‐scale framework. We quantified the influence of local habitat characteristics and landscape context on sloth occurrence using mixed‐effects logistic regression models. We recorded 27 sloths within countryside habitats and found that both local and landscape factors significantly influenced their spatial distribution. Locally, sloths favored structurally complex habitats, with greater canopy cover and variation in tree height and basal area. At the landscape scale, sloths demonstrated a preference for habitats with high proportions of forest and nearby large tracts of forest. Although mixed‐use areas and tree plantations are not substitutes for protected forests, our results suggest they provide important supplemental habitats for sloths. To promote the conservation and long‐term viability of sloth populations in the tropical countryside, we recommend that land managers retain structurally complex vegetation and large patches of native habitat.

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“…, Acevedo‐Quintero et al . ). This discrepancy could be due to seasonal variation in leaf phenology or differences in methodology for quantifying canopy cover.…”

Section: Discussionmentioning

confidence: 97%

Multi‐scale effects of habitat structure and landscape context on a vertebrate with limited dispersal ability (the brown‐throated sloth, Bradypus variegatus)

Neam

Lacher

2018

Biotropica

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“…A relative abundance of individuals ranging from 0.002-0.0083 ind/ha was reported for Arboletes (Antioquia; Acevedo-Quintero et al 2011). The only sex ratio reported was 1:2.2 (♂:♀) for a population in the municipality of Betulia, Santander .…”

Section: A 2b 2c 2dmentioning

confidence: 99%

“…The only sex ratio reported was 1:2.2 (♂:♀) for a population in the municipality of Betulia, Santander . As regards the habitat (Table 3), trees reported as most frequently used were Brunellia sibundoya, Hedyosmum goudotianum and Quercus humboldtii in Bojacá (Cundinamarca;Carmona 2003;Álvarez et al 2004), Anacardium excelsum, Clarisia biflora, Cupania americana and Guarea gigantea in Quimbaya (Quindío; Aguilar-Isaza and López-Obando 2009) and Brownea ariza in Arboletes (Antioquia; Acevedo-Quintero et al 2011). Finally, with respect to the distribution (Table 3), external morphological differences in fur color were reported between specimens inhabiting the lowlands (< 1,500 m) and the highlands (≥ 1,500 m) in the department of Antioquia (Moreno 2003).…”

Section: A 2b 2c 2dmentioning

confidence: 99%

“…This species shows preference toward trees with a DBH greater than 169.64 cm, heights between 15 and 35 m and canopy cover between 14 and 42 m 2 (Aguilar-Isaza and López-Obando 2009). Additionally, it prefers evergreen vegetation, which provides shelter and food during the dry season (Acevedo-Quintero et al 2011).…”

Section: Current State Of Knowledge In Colombiamentioning

confidence: 99%

“…The first spans from southern Honduras to northern South America, comprising Colombia, western Venezuela and northern Ecuador; the second is distributed in the Peruvian, Brazilian and Bolivian Amazon (Wetzel 1982;Superina et al 2010;Hayssen 2011). In Colombia, sloth have been reported in the natural regions of the Caribbean, the Andes and the Pacific, at different altitudes that range from sea level to 3,200 m (Alberico et al 2000;Moreno 2003;Acevedo-Quintero et al 2011;Hayssen 2011;Solari et al 2013).…”

Section: Introductionmentioning

confidence: 99%

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Distribution and current state of knowledge of Hoffmann’s two-toed sloth (Choloepus hoffmanni) in Colombia, with comments on the variations of its external morphological traits

Plese

Reyes-Amaya

Castro-Vásquez

et al. 2016

Therya

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Hoffmann's two-toed sloth (Choloepus hoffmanni) has been extensively studied since the 1940s in some countries across its distribution range. However, several aspects of its biology remain unexplored or have been described superficially. This study updated the geographic distribution of this sloth species in Colombia, describing external traits of specimens that inhabit different areas of the country. Additionally, a revision of the current state of knowledge of this species in Colombia was conducted, with a focus on the identification of information gaps and the major threats affecting this species. An updated map of the distribution of C. hoffmanni in Colombia was elaborated, including the distribution reported by IUCN, the records of specimens received in the Xenarthra center for rescue and rehabilitation (CRRX, for its acronym in Spanish; primary information), the wildlife care centers of the Autonomous Regional Corporations (CARs, for its acronym in Spanish), and records of biological collections available online (secondary information). CRRX specimens were examined externally, and the external morphological characteristics (skull and body shape; pelage color, length and density) were described. A comprehensive literature review was performed, compiling studies conducted over the last two decades on this species in Colombia, analyzing their respective contributions to its knowledge. The records obtained provide localities of occurrence for the species not previously recognized by IUCN, in 54 municipalities of 12 departments of Colombia. There are external morphological patterns defining lowland (interandean valleys and Caribbean region), highland (Colombian Andes) and Colombian Pacific populations. The biggest information gaps regard demography, distribution and genetics. The main threats identified are habitat loss (infrastructure construction, forest clearance) and removal of specimen (illegal trade). The localities of occurrence obtained confirm the distribution of this species in areas previously suggested at the north and center of the Cordillera Occidental, Cordillera Central and Cauca River valley, besides the north, center and south of the Cordillera Oriental, Piedemonte Llanero, and the southern Magdalena River valley. The external revision of specimens from the CRRX shows that although it is impossible to derive clear taxonomic inferences from the evidence collected, pelage color, length and density are the most representative external traits that differentiate lowland, highland and Pacific Colombian populations. The prioritization of issues such as the conservation status and threats in the investigation of this species in Colombia during the last twenty years have relegated key aspects such as demography, distribution, taxonomy and genetics, a fact that poses a challenge for the execution of proper management actions in the country.Key words: Choloepus hoffmanni; conservation; distribution; population density.El perezoso de dos dedos de Hoffmann (Choloepus hoffmanni) ha sido ampliamente estudiad...

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The home range and multi-scale habitat selection of the threatened maned three-toed sloth (Bradypus torquatus)

et al. 2015

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Abundancia y Preferencia de Hábitat deBradypus variegatusyCholoepus hoffmanniDurante la Época Seca en dos Fragmentos de Bosque Seco en Arboletes, Antioquia, Colombia

Cited by 10 publications

References 9 publications

Multi‐scale effects of habitat structure and landscape context on a vertebrate with limited dispersal ability (the brown‐throated sloth, Bradypus variegatus)

Multi‐scale effects of habitat structure and landscape context on a vertebrate with limited dispersal ability (the brown‐throated sloth, Bradypus variegatus)

Distribution and current state of knowledge of Hoffmann’s two-toed sloth (Choloepus hoffmanni) in Colombia, with comments on the variations of its external morphological traits

The home range and multi-scale habitat selection of the threatened maned three-toed sloth (Bradypus torquatus)

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