Borneo is part of the Sundaland biodiversity hotspot, yet this large tropical island still harbours much unrecognised biodiversity. In integrative study, we combine results from phylogenomic, bioacoustic, biometric and morphological analyses, show that Sundaic species Dark-throated Oriole Oriolus xanthonotus comprises two species-level taxa, both which occur on Borneo. The eastern species, here...

[1] The movement of particulate matter within wetland surface waters affects nutrient cycling, contaminant mobility, and the evolution of the wetland landscape. Despite the importance of particle transport in influencing wetland form and function, there are few data sets that illuminate, in a quantitative way, the transport behavior of particulate matter within surface waters containing emergen...

—Although the breeding ranges of Archilochus alexandri (Blackchinned Hummingbird) and Archilochus colubris (Ruby-throated Hummingbird) are narrowly parapatric in central Texas and central and southern Oklahoma, there have been few reports of hybridization in the literature and no well-documented hybrid specimens. Here we provide a comprehensive assessment of two male hybrids collected, respecti...

We sampled lice from 2 species of Neotropical thrushes, Turdus assimilis, the white-throated robin, and T. grayi, the clay-colored robin, to docu4 Corresponding author (e-mail: [email protected]). ment the prevalence, intensity, abundance, and species richness on each host. Sampling was conducted in 1999 in the Coto Brus Valley of southern Costa Rica using a modified dust-ruffling technique. The...

One of the primary steps in managing flow an open channel is determining its properties. Empirical equations are developed to provide further information regarding channels. Obtaining such experimental expensive and time consuming; therefore, alternative solutions have been sought. Over last century, Parshall flume, a static measuring device with no moving parts, has played significant role Man...