MANILA – Can climate change affect Philippine frogs?
A new study published in Proceedings of The Royal Society B posed this hypothesis after noting that climate change may push canopy-dwelling animals out of treetops due to rising temperatures and drier conditions.
The study “Increasing arboreality with altitude: a novel biogeographic dimension” by Brett Scheffers, Ben Philips, William Laurance, Navjoy Sodhi, Arvin Diesmos and Stephen Williams surveyed a community of largely endemic frog species on Mount Banahaw in Southern Luzon. Two of the frog species included in the study are Platymantis montanus, which is endemic to the Philippines, and Rhacophorus pardalis.
From May to October 2011, the team used 118 ground-to-canopy surveys of individual trees across a gradient of elevation from 900 meters to 2100 meters above sea level.
The canopy surveys were for adult frogs – first, a single 10-minute survey on the base of the tree and then above-ground surveys for arboreal frogs in tree holes, moss, epiphytes and other microhabitat structures.
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