Echolocation and roosting ecology determine sensitivity of forest-dependent bats to coffee agriculture

Species differ in vulnerability to anthropogenic landuse changes. Knowledge of the mechanisms driving differential sensitivity can inform conservation strategies but is generally lacking for species-rich taxa in the tropics. The diverse bat fauna of Southeast Asia is threatened by rapid loss of forest and expanding agricultural activities, but the associations between species, traits, vulnerability to agriculture and the underlying drivers have yet to be elucidated. We studied the responses of speciose insectivorous bat assemblages to robusta coffee cultivation in Sumatra, Indonesia. We compared abundance, species richness and assemblage structures of bats between forests and coffee farms based on trapping data and evaluated the influence of vegetation complexity on assemblage composition and species-level reactions. Bat abundance and species richness were significantly lower in coffee farms than in forests. Bat assemblage structure differed between landuses, and the overall variation c...

不同物种对人为土地利用变化的脆弱性存在差异。阐明驱动物种敏感性差异的机制可为保护策略制定提供依据，但目前针对热带地区物种丰富类群的相关研究仍较为匮乏。东南亚拥有丰富多样的蝙蝠类群，其生存正受到森林快速丧失与农业活动扩张的威胁，但当前关于物种、功能性状、农业脆弱性与潜在驱动因子之间的关联，仍有待进一步阐明。本研究以印度尼西亚苏门答腊岛的罗布斯塔咖啡（Robusta coffee）种植区为研究对象，探讨物种丰富的食虫蝙蝠群落对该种植模式的响应。研究基于诱捕数据，对比了森林与咖啡农场中蝙蝠的种群多度、物种丰富度及群落结构，并评估了植被复杂度对蝙蝠群落组成及物种水平响应的影响。咖啡农场中的蝙蝠种群多度与物种丰富度均显著低于森林生境。不同土地利用类型下的蝙蝠群落结构存在差异，且整体变异...