Title
Corridors in heavily fragmented landscapes: Reconnecting populations of Critically Endangered brown spider monkeys (Ateles hybridus) and sympatric terrestrial vertebrates in the lowland rainforests of Central Colombia
Author(s)
Torres, Selene; Valenzuela, Leonor; Patarroyo, Christian; Montes-Rojas, Andrés; Link, Andrés
Published
2022
Publisher
Restoration Ecology
Published Version DOI
https://doi.org/10.1111/rec.13556
Abstract
In tropical ecosystems, habitat degradation and fragmentation are some of the most important drivers of biodiversity loss. In Colombia, the Magdalena River basin is home to a megadiverse wildlife community, which has been historically exposed to pervasive habitat loss and fragmentation. Within a long-term project on the conservation of Critically Endangered brown spider monkeys (Ateles hybridus), we signed Conservation Agreements with local landowners in order to protect the remaining forests and reconnect them through restoration corridors. We established 10 corridors within a matrix of pastures used for cattle-ranching which reconnect ~1000 ha of forests. We planted trees in 2016/17 and 2020, established 24 vegetation plots (10 x 10 m) in order to measure their structure and composition, and compared them with six vegetation plots (50 x 2 m) in forest fragments. We installed camera traps to evaluate the effectiveness of corridors as potential pathways for terrestrial vertebrates in a fragmented landscape. Overall, forest structure differed between young corridors (1 year) and both older corridors (5 years) and forests; older corridors had no structural differences with forest fragments. Throughout this preliminary survey 21 out of 32 species of vertebrates that have been recorded in forests used the corridors, including apex predators and other large birds and mammals. This study provides initial data supporting the use of corridors as a strategy to reconnect wildlife in isolated forest fragments in heavily fragmented landscapes, as well as the establishment of effective corridors that reconnect forest-dwelling species in relatively short periods of time (<5 years).
Keywords
biological corridor; camera trapping; habitat fragmentation; landscape management; sustainable cattle ranching practices

Access Full Text

A full-text copy of this article may be available. Please email the WCS Library to request.



Back

PUB27087