A5032262383- Genetic diversity and population structure
- Avian ecology and behavior
- Wildlife Ecology and Conservation
- Species Distribution and Climate Change
- Plant and animal studies
- Genomics and Phylogenetic Studies
- Genetic and phenotypic traits in livestock
- Ecology and Vegetation Dynamics Studies
- Identification and Quantification in Food
- Animal Ecology and Behavior Studies
- Isotope Analysis in Ecology
- Influenza Virus Research Studies
- Animal Disease Management and Epidemiology
- Evolution and Paleontology Studies
- Animal Behavior and Reproduction
- Genetic and Environmental Crop Studies
- Marine animal studies overview
- Viral Infections and Vectors
- Turtle Biology and Conservation
- Lepidoptera: Biology and Taxonomy
- Animal and Plant Science Education
- Bat Biology and Ecology Studies
- Bird parasitology and diseases
- Rangeland and Wildlife Management
- Geology and Paleoclimatology Research
University of Alaska Fairbanks
2016-2025
Alaska Department of Natural Resources
2024
Yukon University
2024
Texas A&M University
2023
University of Rochester
2022
International Wildlife Consultants (United Kingdom)
2022
Reneco (United Arab Emirates)
2022
Universidad de Costa Rica
2022
American Ornithological Society
2020
Kitasato University
2008
The move from OTU-based to sOTU-based analysis, while providing additional resolution, also introduces computational challenges. We demonstrate that one popular method of dealing with sOTUs (building a de novo tree the short sequences) can provide incorrect results in human gut metagenomic studies and show phylogenetic placement new sequences SEPP resolves this problem yielding other benefits over existing methods.
We present the first genomic-scale analysis addressing phylogenetic position of turtles, using over 1000 loci from representatives all major reptile lineages including tuatara. Previously, studies morphological traits positioned turtles either at base tree or with lizards, snakes and tuatara (lepidosaurs), whereas molecular analyses typically allied crocodiles birds (archosaurs). A recent shared microRNA families found that are more closely related to lepidosaurs. To test this hypothesis...
Phylogenetic network analysis and understanding of waterfowl migration patterns suggest that the Eurasian H5N8 clade 2.3.4.4 avian influenza virus emerged in late 2013 China, spread early 2014 to South Korea Japan, reached Siberia Beringia by summer via migratory birds. Three genetically distinct subgroups subsequently along different flyways during fall into Europe, North America, East Asia, respectively. All three reappeared a wintering site for from Eurasia parts America.
Massively parallel DNA sequencing offers many benefits, but major inhibitory cost factors include: (1) start-up (i.e., purchasing initial reagents and equipment); (2) buy-in getting the smallest possible amount of data from a run); (3) sample preparation. Reducing preparation costs is commonly addressed, are rarely addressed. We present dual-indexing systems to address all three these issues. By breaking library construction process into universal, re-usable, combinatorial components, we...
In this comprehensive survey of microbiomes >900 species, including 315 mammals and 491 birds, we find a striking convergence the birds animals that fly. nonflying mammals, diet short-term evolutionary relatedness drive microbiome, many microbial species are specific to particular kind mammal, but flying break pattern with microbes shared across different little correlation either or hosts. This finding suggests adaptation flight breaks long-held relationships between hosts their microbes.
The Auk, Vol. 128, Number 3, pages 600−613. ISSN 0004-8038, electronic 1938-4254. 2011 by American Ornithologists’ Union. All rights reserved. Please direct all requests for permission to photocopy or reproduce article content through the University of California Press’s Rights and Permissions website, http://www.ucpressjournals. com/reprintInfo.asp. DOI: 10.1525/auk.2011.128.3.600 R. TeRRy ChesseR,1,12,13 RiChaRd C. Banks,1 F. keiTh BaRkeR,2 CaRla CiCeRo,3 Jon l. dunn,4 andRew w....
ABSTRACT Low-virulence Newcastle disease viruses (loNDV) are frequently recovered from wild bird species, but little is known about their distribution, genetic diversity, or potential to cause in poultry. NDV isolates cloacal samples of apparently healthy waterfowl and shorebirds (WS) the United States during 1986 2005 were examined for genomic diversity virulence ( n = 249). In addition 19 loNDV U.S. live markets (LBMs) analyzed found be genetically distinct used vaccines related WS-origin...
Rallus tenuirostris Aztec Rail.Rallus crepitans Clapper Rail
Delichon lagopodum Siberian House-
Biodiversity research has been the mainstay of natural history museums, but traditional uses biological collections in taxonomy, systematics, and evolutionary biology account for only part these collections' value. Biological today are meeting diverse needs. New specimens—as "biological filter paper," example—have little relationship to taxon-oriented on which based, yet they often have tremendous import helping us understand changes populations, species, environment. As major issues...
We investigated fat deposition in transient, nocturnal, long-distance migrants at a wooded stopover site that is not near an ecological barrier (e.g. desert, large water body). The changes body mass of recaptured birds have traditionally been used as measure gains sites. This technique ignores the majority transients, however, possibly hindering ability to answer species-level questions regarding gain. compare analysis recaptures with considers all captures and their condition by time day....
Abstract Asian-origin avian influenza (AI) viruses are spread in part by migratory birds. In Alaska, diverse hosts from Asia and the Americas overlap a region of intercontinental avifaunal mixing. This is hypothesized to be zone Asia-to-America virus transfer because birds there can mingle waters contaminated wild-bird–origin AI viruses. Our 7 years surveillance among waterfowl shorebirds this (1998–2004; 8,254 samples) showed remarkably low infection rates (0.06%). findings suggest an...
To empirically determine the effects of sample size on commonly used measures average genetic diversity, we genotyped 200 song sparrows Melospiza melodia from two populations, one genetically depauperate (n100) and other diverse (n100), using eight microsatellite loci. These genotypes were to randomly create 10,000 datasets differing sizes (5 50) for each population what might be several estimates diversity (number alleles per locus, observed heterozygosity, unbiased expected heterozygosity)...
Most Neotropical lowland forest taxa occur exclusively on one side of the Andes despite availability appropriate habitat both sides. Almost all molecular phylogenies and phylogenetic analyses species assemblages (i.e. area cladograms) have supported hypothesis that Andean uplift during Late Pliocene created a vicariant barrier affecting lineages in region. However, few widespread plant animal occurring forests sides challenge generality this hypothesis. To understand role history such...
orders, and newly recognized or restored families (Pandionidae, Capitonidae, Semnornithidae, Polioptilidae, Cettiidae, Phylloscopidae, Acrocephalidae, Donacobiidae, Megaluridae, Calcariidae, Viduidae) are added to the main list by splits from existing families.Two (Ardeidae Threskiornithidae) transferred order Ciconiiformes Pelecaniformes.New linear sequences adopted for species in genera Cyanolyca, Aimophila, Pipilo, of within Cotingidae portions Corvidae Emberizidae rearranged reflect...
in this review i summarize the history of subspecies concept and major debates issues surrounding its use, with an emphasis on ornithology, which originated. The study subspecific variation birds has been important driving force development evolutionary biology. Subspecific also essential description preservation biodiversity. Although controversy surrounded since inception, it continues to play role both basic applied science. cover 10 relevant that have largely resolved during 150-year...
Theory predicts that parallel evolution should be common when the number of beneficial mutations is limited by selective constraints on protein structure. However, confirmation scarce in natural populations. Here we studied major haemoglobin genes eight Andean duck lineages and compared them to 115 other waterfowl species, including bar-headed goose (Anser indicus) Abyssinian blue-winged (Cyanochen cyanopterus), two additional species living at high altitude. One five amino acid replacements...
Abstract Next-generation DNA sequencing (NGS) offers many benefits, but major factors limiting NGS include reducing costs of: 1) start-up (i.e., doing for the first time); 2) buy-in getting smallest possible amount of data from a run); and 3) sample preparation. Reducing preparation is commonly addressed, are rarely addressed. We present dual-indexing systems to address all three these issues. By breaking library construction process into universal, re-usable, combinatorial components, we...
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...