A5074853287- Avian ecology and behavior
- Plant and animal studies
- Genetic diversity and population structure
- Genetic and phenotypic traits in livestock
- Animal Behavior and Reproduction
- Evolution and Paleontology Studies
- Fish Biology and Ecology Studies
- Rangeland and Wildlife Management
- Ecology and Vegetation Dynamics Studies
- Livestock and Poultry Management
- Fish Ecology and Management Studies
- Species Distribution and Climate Change
- Oil Palm Production and Sustainability
- Animal Ecology and Behavior Studies
- Wildlife Ecology and Conservation
- Decision-Making and Behavioral Economics
- Lepidoptera: Biology and Taxonomy
- Plant Ecology and Taxonomy Studies
- Potato Plant Research
- Amphibian and Reptile Biology
- Aesthetic Perception and Analysis
- Human-Automation Interaction and Safety
- Yersinia bacterium, plague, ectoparasites research
- Genetic and Environmental Crop Studies
- Bat Biology and Ecology Studies
San Diego State University
2015-2024
Victoria University of Wellington
2021
University of Alberta
1996-2019
Mitre (United States)
2009-2019
University of Illinois Urbana-Champaign
2018
University of California, Berkeley
1997-2016
University of Minnesota
2012-2016
Center for Occupational Research and Development
2016
Hunter College
2016
City University of New York
2016
Recent analyses suggest that a few major shifts in diversification rate may be enough to explain most of the disparity diversity among vertebrate lineages. At least one significant increase appears have occurred within birds; however, several nested lineages birds been identified as hyperdiverse by different studies. A clade containing finches and relatives (within avian order Passeriformes), including large radiation endemic New World comprises ~8% all bird species, true driver this...
Understanding the biogeographic origins and temporal sequencing of groups within a region or lineages an ecosystem can yield important insights into evolutionary dynamics ecological processes.Fifty years ago, Ernst Mayr generated comprehensive-if limited-inferences about New World avifaunas, including importance pre-Isthmian dispersal between North South America.Since then, methodological advances have improved our ability to address many same questions, but phylogenies upon which such...
Abstract Aim We used mitochondrial DNA sequence data to reconstruct the phylogeny of a large clade tanagers (Aves: Thraupini). this Neotropical bird group identify areas vicariance, ancestral zoogeographical and elevational distributions, investigate correspondence geological events speciation events. Location The species investigated are found in 18 22 regions South America, Central America Caribbean islands; therefore, we were able use address biogeographical history entire region. Methods...
Phenotypic divergence can promote reproductive isolation and speciation, suggesting a possible link between rates of phenotypic evolution the tempo speciation at multiple evolutionary scales. To date, most macroevolutionary studies diversification have focused on morphological traits, whereas behavioral traits─including vocal signals─are rarely considered. Thus, although traits often mediate mate choice gene flow, we limited understanding how contributes to diversification. Furthermore,...
Restriction-site associated DNA sequencing (RAD-seq) and target capture of specific genomic regions, such as ultraconserved elements (UCEs), are emerging two the most popular methods for phylogenomics using reduced-representation data sets. These were designed to different evolutionary timescales: RAD-seq was population-genomic level questions UCEs deeper phylogenetics. The utility both sets infer phylogenies across a variety taxonomic levels has not been adequately compared within same...
The Information Technology Laboratory (ITL) at the National Institute of Standards and (NIST) promotes U.S. economy public welfare by providing technical leadership for Nation's measurement standards infrastructure.ITL develops tests, test methods, reference data, proof concept implementations, analyses to advance development productive use information technology.ITL's
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 Despite the importance of Darwin's finches to development evolutionary theory, origin group has only recently been examined using a rigorous, phylogenetic methodology that includes many potential outgroups. Knowing relationships other birds is important for understanding context from which this adaptive radiation arose. Here we show analysis mitochondrial DNA sequence data cytochrome b gene confirm are monophyletic. In addition, taxa previously proposed as sister taxon can be...
The evolution of sexual dichromatism in tanagers (family Thraupidae) was studied from a phylogenetic perspective using molecular-based phylogeny. Mapping patterns dimorphism plumage onto the phylogeny reveals that changes female occur more frequently than male plumage. Possible explanations for this pattern include selection acting on and natural background matching. results study other recent comparative studies suggest factors affecting are important shaping dimorphism.
The astonishing variation in the shape and size of bird beaks reflects a wide range dietary specializations that played an important role avian diversification. Among Darwin's finches, ground finches (Geospiza spp.) have represent scaling variations same shape, which are generated by alterations signaling pathways regulate growth two skeletal components beak: prenasal cartilage (pnc) premaxillary bone (pmx). Whether this developmental mechanism is responsible for within groups other closely...
Males and females can be under different evolutionary pressures if sexual natural selection is differentially operating in each sex. As a result, many species have evolved dichromatism, or differences coloration between sexes. Although dichromatism often used as an index of the magnitude selection, composite trait. Here, we examine evolution one largest most ecologically diverse families birds, tanagers, using avian visual perspective species-level phylogeny. Our results demonstrate that...
The concept of a macroevolutionary trade-off among sexual signals has storied history in evolutionary biology. Theory predicts that if multiple are costly for males to produce or maintain and females prefer single, sexually selected trait, then an inverse correlation between signal elaborations is expected species. However, empirical evidence what been termed the 'transfer hypothesis' mixed, which may reflect different selective pressures lineages, covariates methodological differences...
p. xii.The exclusion of Greenland from the AOS geographical area is reversed.Under section Geographic Coverage, change reference to eastern boundary ''the between Canada and Greenland'' ''Greenland.'' geographically, physiographically, tectonically part North America, was considered coverage first (AOU 1886) through fifth editions Check-list 1957).In 6th edition 1983), however, removed area, seven species included only on basis records were transferred hypothetical list (Appendix B in that...
Abstract We describe a colorful and distinctive new species of tanager from the lower slopes Andes southeastern Peru western Bolivia. The was first noted in 2000, but little its natural history uncovered until 2011 discovery breeding population deciduous forest an intermontane valley, Machariapo This appears to be intratropical migrant, during rainy season (November–March) spending dry dispersed along Andes, apparently favoring Guadua bamboo-dominated habitats both seasons. Phylogenetic...
Delichon lagopodum Siberian House-
Avian coloration has played a central role in the study of sexual selection and other aspects animal behavior. However, only recently have analyses avian been able to incorporate visual abilities. Although several studies broadly sampled species for evidence plumage visible birds but invisible humans, few quantified these data all single taxonomic group. We quantify ultraviolet (UV) reflectance document cryptic dichromatism largest radiation Neotropical songbirds, cardinals tanagers....