A5086944460- Amphibian and Reptile Biology
- Genetic diversity and population structure
- Species Distribution and Climate Change
- Evolution and Genetic Dynamics
- Evolution and Paleontology Studies
- Plant and animal studies
- Genomics and Phylogenetic Studies
- Animal Behavior and Reproduction
- Bat Biology and Ecology Studies
- Turtle Biology and Conservation
- Lepidoptera: Biology and Taxonomy
- Ecology and Vegetation Dynamics Studies
- Aquatic Invertebrate Ecology and Behavior
- Fish Ecology and Management Studies
- Fish biology, ecology, and behavior
- Wildlife Ecology and Conservation
- Insect and Arachnid Ecology and Behavior
- Environmental DNA in Biodiversity Studies
- Fire effects on ecosystems
- Aquatic Ecosystems and Biodiversity
- Plant Ecology and Soil Science
- Genetic and Clinical Aspects of Sex Determination and Chromosomal Abnormalities
- Diverse Musicological Studies
- Avian ecology and behavior
- Cardiac Valve Diseases and Treatments
Arizona State University
2023-2025
Natural History Museum of Los Angeles County
2020-2024
University of California, Davis
2009-2024
Washington State University
2023
University of Colorado Anschutz Medical Campus
2023
University of Hawaii System
2017-2022
University of Hawaiʻi at Mānoa
2014-2020
University of Kansas
2010-2015
University of California System
2010
California State University, Sacramento
2010
Long celebrated for its spectacular landscapes and strikingly high levels of endemic biodiversity, the Philippines has been studied intensively by biogeographers two centuries. Concentration so many land vertebrates into a small area shared patterns distribution in unrelated forms inspired search common mechanisms production, partitioning, maintenance life archipelago. In this review, we (a) characterize an ongoing renaissance species discovery, (b) discuss changing way conceive archipelago,...
An accurate understanding of species diversity is essential to studies across a wide range biological subdisciplines. However, delimiting remains challenging in evolutionary radiations where morphological diversification rapid and accompanied by little genetic differentiation or when lineage divergence not change. We investigate the utility variety recently developed approaches examine diversity, delimit morphologically conserved group Southeast Asian lizards. find that vastly underestimated...
The use of genetic data for identifying species-level lineages across the tree life has received increasing attention in field systematics over past decade. multispecies coalescent model provides a framework understanding process lineage divergence and become widely adopted delimiting species. However, because these studies lack an explicit assessment fit, many cases, accuracy inferred species boundaries are unknown. This is concerning given large amount empirical theory that highlight...
The use of large genomic data sets in phylogenetics has highlighted extensive topological variation across genes. Much this discordance is assumed to result from biological processes. However, among gene trees can also be a consequence systematic error driven by poor model fit, and the relative importance vs. methodological factors explaining tree major unresolved question. Using mitochondrial genomes control for causes variation, we estimate extent employ posterior prediction highlight role...
Facultative parthenogenesis (FP) has historically been regarded as rare in vertebrates, but recent years incidences have reported a growing list of fish, reptile, and bird species. Despite the increasing interest phenomenon, underlying mechanism evolutionary implications remained unclear. A common finding across many FP is either high degree homozygosity at microsatellite loci or low levels heterozygosity detected next-generation sequencing data. This led to proposal that second polar body...
Hybridization between diverging lineages is associated with the generation and loss of species diversity, introgression, adaptation, changes in reproductive mode, but it unknown when why results these divergent outcomes. We estimate a comprehensive evolutionary network for largest group unisexual vertebrates use to understand outcomes hybridization. Our show that rates introgression decrease time since divergence suggest must attain threshold before hybridization transitions unisexuality....
Abstract Thirteen species of North American lizards are remarkable because only females exist, which reproduce by cloning unfertilized eggs. Their closest relatives sexually, with eggs fertilized sperm from males, as in most vertebrates. The unisexual originated through hybridization, dispensing sex and males a single generation. These hold tremendous potential science education fascinating model for learning about fundamental biological concepts, research developing knowledge medical...
Abstract Accurate estimates of biodiversity are required for research in a broad array biological subdisciplines including ecology, evolution, systematics, conservation and science. The use statistical models genetic data, particularly DNA barcoding, has been suggested as an important tool remedying the large gaps our current understanding biodiversity. However, reliability obtained using these approaches depends on how well that used describe evolutionary process underlying data. In this...
A large and growing fraction of systematists define species as independently evolving lineages that may be recognized by analyzing the population genetic history alleles sampled from individuals belonging to those species. This has motivated development increasingly sophisticated statistical models rooted in multispecies coalescent process. Specifically, these allow for simultaneous estimation number present a sample phylogenetic using only DNA sequence data independent loci. These methods...
Abstract Aim Widespread, transcontinental vertebrate groups represent ideal systems for biogeographical studies, because they can shed light on a wide range of questions relating to species diversification across the geographical template. We combined extensive and genetic sampling from multiple realms examine timing location in Asian sun skinks, clade characterized by problematic boundaries particularly enigmatic evolutionary history. Location Indian subcontinent, Philippines, Southeast...
Establishment of conservation priorities for primates is a particular concern in the island archipelagos Southeast Asia, where rates habitat destruction are among highest world. Conservation programs require knowledge taxonomic diversity to ensure success. The Philippine tarsier flagship species that promotes environmental awareness and thriving ecotourism economy Philippines. However, assessment its status has been impeded by uncertainty, paucity field studies, lack vouchered specimens...
Incorporating genomic data sets into landscape genetic analyses allows for powerful insights population genetics, explicitly geographical correlates of selection, and morphological diversification organisms across the template. Here, we utilize an integrative approach to examine gene flow detect relate these processes phenotypic differentiation South-East Asia in common sun skink, Eutropis multifasciata. We quantify relative effects geographic ecological isolation this system find elevated...
AbstractAdaptive radiations highlight the mechanisms by which species and traits diversify extent to these patterns are predictable. We used 1,110 high-speed videos of suction feeding study functional morphological diversification in 300 cichlid from three African Great Lake varying ages (Victoria, Malawi, Tanganyika) an older, spatially dispersed continental radiation Neotropics. Among radiations, standing diversity was reflective time. Morphological variance Victoria, youngest radiation, a...
Abstract Aggressive behavior can be an important factor in determining how animals use and divide space resources. Previous studies have shown that aggression fishes influenced by a variety of factors, including water temperature resource levels. In this study, we tested if the amount habitat structure environment affected levels female convict cichlids Archocentrus nigrofasciatus. We performed laboratory experiment which placed into aquarium with low or high amounts monitored dominant...
A primary challenge for modern phylogeography is understanding how ecology and geography, both contemporary historical, shape the spatial distribution evolutionary histories of species. Phylogeographic patterns are result many factors, including geology, climate, habitat, colonization history lineage-specific constraints. Assessing relative influences these factors difficult because few species, regions environments sampled in enough detail to compare competing hypotheses rigorously a...
AbstractTransitions between sexual and unisexual reproductive modes have significant consequences for the evolutionary trajectories of species. These transitions occurred numerous times in vertebrates are frequently mediated by hybridization events. Triploid thought to arise through individuals a diploid lineage species, although additional evidence that confirms this mechanism is needed groups. North American whiptail lizards (Aspidoscelis) notable being one largest radiations vertebrates,...
Abstract The genus Boiga includes 35, primarily arboreal snake species distributed from the Middle East to Australia and many islands in western Pacific, with particularly high diversity South-East Asia. Despite including iconic mangrove snakes (Boiga dendrophila complex) brown tree irregularis; infamous for avian extinctions on small of Pacific), species-level phylogenetic relationships biogeographic history this ecologically morphologically distinct clade are poorly understood. In study,...
A new species in the dicroglossine genus Limnonectes from West Sumatra, Indonesia, is described. Analysis of DNA sequence data mitochondrial 12S and 16S gene regions places within kuhlii Complex demonstrates it to be sister taxon sensu stricto Java. Both molecular morphological support recognition this lineage as a species. Notably, presence spinule-covered mental plate distinguishes sisikdagu sp. nov. all other members L. Complex. Additionally, pair-wise divergence greater than 10% separate...
Unisexual vertebrates typically form through hybridization events between sexual species in which reproductive mode transitions occur the hybrid offspring. This evolutionary history is thought to have important consequences for ecology of unisexual lineages and their interactions with congeners natural communities. However, these proven challenging study owing uncertainty about patterns population genetic diversity lineages. Of particular interest resolving contribution historical versus...
Abstract Background Human-commensal species often display deep ancestral genetic structure within their native range and founder-effects and/or evidence of multiple introductions admixture in newly established areas. We investigated the phylogeography Eutropis multifasciata , an abundant human-commensal scincid lizard that occurs across Southeast Asia, to determine extent its assess sources signatures human introduction outside range. sequenced over 350 samples E. for mitochondrial ND2 gene...