Tests of biological corridor efficacy for conservation of a Neotropical giant damselfly

摘要: Abstract Deforestation and forest fragmentation are important drivers of global biodiversity loss negatively impact ecosystem health landscape continuity. One approach to reducing these impacts is the establishment biological corridors. Studies on corridor efficacy have been limited a small subset taxa; while important, data can rarely be extrapolated other systems. I tested whether Megaloprepus caerulatus , giant tree-hole breeding damselfly adapted mature Neotropical forests, does disperse from fragments that components an established corridor. monitored presence M. in four secondary San Juan-La Selva network contiguous La forest. compared densities adult larval artificial natural sites over course one year. None holes were colonized by whereas at 25% 63% tree colonized. ‘s ability fly pasture between with dispersal challenge experiment. Although successfully crossed gaps 25 m, it had difficulty traversing as narrow 50–100 m. Based analysis 360° photos taken each release distance, edge was less distinguishable distances ⩾50 m. These results suggest conservation utility existing networks for .