Current / Past Research / Research By Category

News 12.03.14

This is one of the eastern Philippine island populations of crested lizards in the genus Gonocephalus.  Members of the genus in the Philippines are forest obligate species, with three, relatively widespread species currently recognized in the archipelago.  Males develop quite beautiful crests on their heads and backs, and you can’t beat the eye color....


News 11.28.14

Biodiversity Survey in the Philippines This summer, I was fortunate enough to join a team of international biologists and participate in a four-week biodiversity study on the island of Samar in the southeastern Philippines. This expedition was funded by an NSF RAPID grant and lead by the University of Kansas (KU; my alma mater), and the University of Oklahoma (OU), both of...


News 10.21.14

This photograph was taken by Cameron D. Siler on a recent expedition to the eastern Philippines.  The Philippine species of these beautiful vipers are actually quite easy to photograph, and once settled in a position are quite docile, allowing for great macro photography!...


News 10.21.14

Five members of the Siler Lab (Elyse Freitas, Greg Jongsma, Alyssa Anwar, Tucker Walton, and Rachel Flanagan) attended Oklahoma’s BioBlitz! 2014 at Washita Battlefield National Historic Site, Black Kettle National Grasslands, and the City of Cheyenne Park.  They were joined by a few hundred other members of OU, other universities, and the general public.  Check out more info here. Read a first-hand...


News 10.12.14

This common tree snake was photographed by Cameron D. Siler on a recent expedition to the eastern Philippines.  It took quite a few shots to get the tongue in focus....


News 10.02.14

Such a beautiful species, Hylarana luzonensis occurs in the northern Philippines. Due to continued loss of its primary habitats around pristine river and stream systems, this species appears to be threatened in certain regions of its distribution. Females of this species are considerably larger than males, with greatly expanded toe pads....


Publications 09.15.14

Recent studies of forest lizards in Southeast Asia have highlighted spectacular morphological and cryptic genetic diversity in several poorly known clades. Unfortunately, many of the included species have microhabitat preferences for forested environments, and therefore they are threatened by extensive forest destruction throughout the region. This is particularly true in the Philippines, an archipelago with a strikingly high proportion (84%) of endemic...


Publications 09.15.14

We review the recent discovery of multiple populations of the enigmatic, semi-aquatic Sphenomorphus Group skink, Parvoscincus leucospilos Peters, and investigate the morphological and genetic diversity of isolated, allopatric populations of this unique skink. Our investigations support the recognition of four unique evolutionary lineages distributed across Luzon Island in the Philippines, three of which are herein described as new species (P. tikbalangi sp....


Publications 09.15.14

Widespread, co-distributed species with limited relative dispersal abilities represent compelling focal taxa for comparative phylogeography. Forest vertebrates in island archipelagos often exhibit pronounced population structure resulting from limited dispersal abilities or capacity to overcome marine barriers to dispersal. The exceptionally diverse Old World tree frogs of the family Rhacophoridae have colonized the forested island archipelagos of Southeast Asia on multiple occasions, entering...