Buergeria robusta (robust Buerger's frog or strong stream frog) is a species of frog in the family Rhacophoridae. It is sympatric with Buergeria japonica but is much larger in size.[1]
The species is endemic to Taiwan,[2] where it is known by the name brown tree frog.[3] Buergeria robusta is a common and widespread species found at low to medium altitudes. These frogs live mainly near the creeks or streams. They are locally threatened by habitat loss; they are also collected for consumption.[4]
The genetic landscape of Buergeria robusta presents high congruence to the topography of Taiwan; populations on the eastern and western sides of the Central Mountain Range showed a prominent genetic divergence.[5]
Buergeria robusta are medium to large-sized treefrogs. Their body is stocky; males grow to 4cm-5cmcm (02inches-02inchescm) in snout-vent length and females to 7cm-8cmcm (03inches-03inchescm). The skin of the dorsum is smooth. The colour varies with the environment from brown or gray to greenish and to even yellow.[4]
Breeding season is from February to September, when males can be found sitting and calling on tops of rocks. Eggs are deposited directly in water, without making a foam nest.