A5083315652- Amphibian and Reptile Biology
- Species Distribution and Climate Change
- Turtle Biology and Conservation
- Genetic diversity and population structure
- Genomics and Phylogenetic Studies
- Animal Behavior and Reproduction
- Spider Taxonomy and Behavior Studies
- Lepidoptera: Biology and Taxonomy
- Animal and Plant Science Education
- Insect and Arachnid Ecology and Behavior
- Ecology and Vegetation Dynamics Studies
- Plant and animal studies
- Identification and Quantification in Food
- Primate Behavior and Ecology
- Wildlife-Road Interactions and Conservation
- Wildlife Ecology and Conservation
- Antimicrobial Peptides and Activities
- Bat Biology and Ecology Studies
- Aquatic life and conservation
- Fish Biology and Ecology Studies
- Ichthyology and Marine Biology
- Molecular Biology Techniques and Applications
- Scarabaeidae Beetle Taxonomy and Biogeography
- bioluminescence and chemiluminescence research
- Genetics, Bioinformatics, and Biomedical Research
University of Kansas
2012-2025
American Museum of Natural History
2011-2025
National University of Singapore
2018-2024
Universiti Sains Malaysia
2023
Natural History Museum
2019
Google (United States)
2017
National University of Malaysia
2008-2012
La Sierra University
2010-2011
Forest Research Institute Malaysia
2008
Abstract Systematic assessments of species extinction risk at regular intervals are necessary for informing conservation action 1,2 . Ongoing developments in taxonomy, threatening processes and research further underscore the need reassessment 3,4 Here we report findings second Global Amphibian Assessment, evaluating 8,011 International Union Conservation Nature Red List Threatened Species. We find that amphibians most threatened vertebrate class (40.7% globally threatened). The updated...
Previously, only one species of torrent frog (Amolops larutensis) was thought to occur throughout Peninsular Malaysia. However, genomic work has demonstrated that populations from eastern Malaysia form two separate lineages are genetically distinct A. larutensis is now restricted the western half This study demonstrates all three can be morphologically distinguished each other, thereby providing additional support for recognition as species. These described herein Amolops gerutu sp. nov....
A well-supported and well-resolved phylogeny based on a concatenated data set from one mitochondrial two nuclear genes, six morphological characters, nine color pattern characters for 44 of the 50 species Southeast Asian Rock Geckos (genus Cnemaspis Strauch, 1887) is consistent with previous taxonomy solely morphology pattern. partitioned into four major clades that collectively contain groups. The monophyly all groups strongly supported they are parapatrically distributed across...
A reappraisal of the taxonomic status Dark-necked Slug Snake (Asthenodipsas malaccana Peters, 1864) across its range revealed that populations from Borneo are not conspecific with true A. Thai-Malay Peninsula and Sumatra, is therefore described herein as new. Asthenodipsas borneensis sp. nov. can be distinguished other congeners by absence a preocular suboculars, seven or eight supralabials 3rd 4th in contact orbit, 4–7 infralabials 2nd pair contact, two pairs posterior inframaxillaries,...
The efficacy of an allometric growth model to correct for ontogenetic body size variation has been known decades, yet this method remains relatively obscure and rarely applied. We optimize the implementation through a newly developed easy-to-use R package GroupStruct further extend its application from intraspecific interspecific datasets. Using empirical examples, we show that different correction methods (i.e., ratios, residuals, allometry) can result in vastly conclusions. Our results...
Natural history museums are vital repositories of specimens, samples and data that inform about the natural world; this Formal Comment revisits a Perspective advocated for adoption compassionate collection practices, querying whether it will ever be possible to completely do away with whole animal specimen collection.
Abstract Although the differentiation of clades at species level is usually based on a justifiable and testable conceptual framework, demarcation supraspecific boundaries less objective often subject to differences opinion. The increased availability large-scale phylogenies has in part promulgated practice what we consider excessively splitting “genus” level. Many these new genus-level splits are predicated untenable supporting evidence (e.g., weakly supported purportedly “diagnostic” but...
Accurately delimiting species boundaries is a nontrivial undertaking that can have significant effects on downstream inferences. We compared the efficacy of commonly used delimitation methods (SDMs) and population genomics approach based genomewide single-nucleotide polymorphisms (SNPs) to assess lineage separation in Malaysian Torrent Frog Complex currently recognized as single (Amolops larutensis). First, we morphological, mitochondrial DNA SNPs identify putative by implementing...
Most new cryptic species are described using conventional tree- and distance-based delimitation methods (SDMs), which rely on phylogenetic arrangements measures of genetic divergence. However, although numerous factors such as population structure gene flow known to confound inference delimitation, the influence these processes is not frequently evaluated. Using large numbers exons, introns, ultraconserved elements obtained FrogCap sequence-capture protocol, we compared SDMs with more robust...
Abstract In cryptic amphibian complexes, there is a growing trend to equate high levels of genetic structure with hidden species diversity. Typically, phylogenetic and distance-based approaches are used demonstrate the distinctness clades justify recognition new species. However, this approach does not account for gene flow, spatial, environmental processes that can obfuscate inference bias delimitation. As case study, we sequenced genome-wide exons introns evince underlie diversification...
Abstract Background The 16S mitochondrial rRNA gene is the most widely sequenced molecular marker in amphibian systematic studies, making it comparable to universal CO1 barcode that more commonly used other animal groups. However, studies employ different primer combinations target lengths/regions of ranging from complete sequences (~ 1500 bp) short fragments 500 bp), latter which ubiquitously used. Sequences lengths are often concatenated, compared, and/or jointly analyzed infer...
The gekkonid genus Cyrtodactylus is the third most speciose vertebrate in world, containing well over 300 species that collectively range from South Asia to Melanesia across some of diverse landscapes and imperiled habitats on planet. A genus-wide phylogeny group has never been presented because researchers working different groups were using genetic markers construct phylogenies could not be integrated. We present here Maximum likelihood Bayesian inference mitochondrial mito-nuclear...
Hybridization often occurs in areas of secondary contact between closely related species. In some cases these hybridization events can create hybrid offspring that are reproductively viable as new parthenogenetic The genus Leiolepis contains nine species collectively range throughout continental Southeast Asia. Of these, four unisexual (some diploid and triploid). We analyzed a multi-locus dataset within multi-lineage coalescent framework to infer the origins Our results provide evidence...
An integrative taxonomic analysis of three newly discovered populations the gekkonid genus Cyrtodactylus Gray from Merapoh, Pahang; Gunung Stong, Kelantan; and Tebu, Terengganu indicate they are part C. pulchellus complex each is a new species thusly named sharkari sp. nov., jelawangensis timur respectively. Each bears unique suite morphological color pattern characters separating them other all nominal in complex. Their phylogenetic relationships to were unexpected that not accordance with...
Genome-scale data have greatly facilitated the resolution of recalcitrant nodes that Sanger-based datasets been unable to resolve. However, phylogenomic studies continue use traditional methods such as bootstrapping estimate branch support; and high bootstrap values are still interpreted providing strong support for correct topology. Furthermore, relatively little attention has given assessing discordances between gene species trees, underlying processes produce phylogenetic conflict. We...
Amphibians represent a diverse group of tetrapods, marked by deep divergence times between their three systematic orders and families. Studying amphibian biology through the genomics lens increases our understanding features this animal class that other terrestrial vertebrates. The need for genomic resources is more urgent than ever due to increasing threats group. are one most imperiled taxonomic groups, with approximately 41% species threatened extinction habitat loss, changes in land use...
Two new diminutive species of Cnemaspis are described from Peninsular Malaysia. monachorum sp. nov. is a karst-dwelling endemic to Pulau Langkawi, Kedah and the smallest Southeast Asian date. pseudomcguirei montane known only Bukit Larut, Perak in Bintang Mountain Range very similar appearance considerably larger, sympatric C. mcguirei. Evidence supporting working hypothesis resource partitioning between pairs on basis size microhabitat preference presented.
The interplay between range expansion and concomitant diversification is of fundamental interest to evolutionary biologists, particularly when linked intercontinental dispersal and/or large scale extinctions. history true frogs has been characterized by circumglobal expansion. As a lineage that survived the Eocene–Oligocene extinction event (EOEE), group provides an ideal system test prediction triggers increased net diversification. We constructed most densely sampled, time-calibrated...
A time-calibrated phylogenetic tree indicates that the evolution of sympatric, montane, endemic species from closely related, co-distributed lineages Hemiphyllodactylus harterti group were not result rapid, forest-driven, climatic oscillations Last Glacial Maximum, but rather infrequent episodes environmental fluctuation during Late Miocene. This hypothesis is supported by genetic divergences (based on mitochondrial gene ND2) between three major H. (17.5–25.1%), their constituent...
The gekkonid genus Cyrtodactylus is the third most speciose vertebrate in world, containing well over 300 species that collectively range from South Asia to Melanesia across some of diverse landscapes and imperiled habitats on planet. A genus-wide phylogeny group has never been presented because researchers working different groups were using genetic markers construct phylogenies could not be integrated. We present here Maximum likelihood Bayesian inference mitochondrial mito-nuclear...