title: Evaluating multispecies landscape connectivity in a threatened tropical mammal community.
abstract: Habitat corridors are important tools for maintaining connectivity in increasingly fragmented landscapes, but generally they have been considered in single-species approaches. Corridors intended to facilitate the movement of multiple species could increase persistence of entire communities, but at the likely cost of being less efficient for any given species than a corridor intended specifically for that species. There have been few tests of the trade-offs between single- and multispecies corridor approaches. We assessed single-species and multispecies habitat corridors for 5 threatened mammal species in tropical forests of Borneo. We generated maps of the cost of movement across the landscape for each species based on the species' local abundance as estimated through hierarchical modeling of camera-trap data with biophysical and anthropogenic covariates. Elevation influenced local abundance of banded civets (Hemigalus derbyanus) and sun bears (Helarctos malayanus). Increased road density was associated with lower local abundance of Sunda clouded leopards (Neofelis diardi) and higher local abundance of sambar deer (Rusa unicolor). Pig-tailed macaque (Macaca nemestrina) local abundance was lower in recently logged areas. An all-species-combined connectivity scenario with least-cost paths and 1 km buffers generated total movement costs that were 27% and 23% higher for banded civets and clouded leopards, respectively, than the connectivity scenarios for those species individually. A carnivore multispecies connectivity scenario, however, increased movement cost by 2% for banded civets and clouded leopards. Likewise, an herbivore multispecies scenario provided more effective connectivity than the all-species-combined scenario for sambar and macaques. We suggest that multispecies habitat connectivity plans be tailored to groups of ecologically similar, disturbance-sensitive species to maximize their effectiveness.
authors: Departments of Zoology & Botany, Biodiversity Research Centre, University of British Columbia, 3529-6270 University Blvd, Vancouver, British Columbia, V6T 1Z4, Canada. brodie@biodiversity.ubc.ca.
authors: Jedediah F
authors: JF
authors: Brodie
authors: Anthony J
authors: AJ
authors: Giordano
authors: Brett
authors: B
authors: Dickson
authors: Mark
authors: M
authors: Hebblewhite
authors: Henry
authors: H
authors: Bernard
authors: Jayasilan
authors: J
authors: Mohd-Azlan
authors: Jesse
authors: J
authors: Anderson
authors: Laurentius
authors: L
authors: Ambu
mesh_terms: D063147:Animal Distribution; D000818:Animals; D044822:Biodiversity; D001893:Borneo; D003247:Conservation of Natural Resources / Q000379:methods*; D008296:Malaysia; D008322:Mammals / Q000502:physiology*; D065947:Rainforest
keywords: Borneo; Corazón de Borneo; Heart of Borneo; animal movement; conservación multiespecie; corredor de hábitats; dispersal; dispersión; fragmentación; fragmentation; habitat corridor; logging; movimiento animal; multispecies conservation; tala