8 Works

Data from: Lincoln estimates of mallard (Anas platyrhynchos) abundance in North America

Ray T. Alisauskas, Todd W. Arnold, James O. Leafloor, David L. Otis & James S. Sedinger
Estimates of range-wide abundance, harvest, and harvest rate are fundamental for sound inferences about the role of exploitation in the dynamics of free-ranging wildlife populations, but reliability of existing survey methods for abundance estimation is rarely assessed using alternative approaches. North American mallard populations have been surveyed each spring since 1955 using internationally coordinated aerial surveys, but population size can also be estimated with Lincoln's method using banding and harvest data. We estimated late summer...

Data from: Discovery and characterization of novel genetic markers for use in the management of Lahontan cutthroat trout (Oncorhynchus clarkii henshawi)

Victoria L. Pritchard, Nathan R. Campbell, Shawn R. Narum, Mary M. Peacock & John Carlos Garza
The Lahontan cutthroat trout (Oncorhynchus clarkii henshawi) is threatened by habitat destruction, over-harvest and hybridization with nonnative trout. Currently, three Geographic Management Units (GMUs) are recognized within the taxon. Here, we describe a suite of 68 single-nucleotide polymorphism (SNP) genetic markers for use in the study and management of Lahontan cutthroat trout and a closely related subspecies, the Paiute cutthroat trout (O. c. seleneris). These include markers variable within the two subspecies (n = 35),...

Data from: Multilocus phylogeographic assessment of the California Mountain Kingsnake (Lampropeltis zonata) suggests alternative patterns of diversification for the California Floristic Province

Edward A. Myers, Javier A. Rodríguez-Robles, Dale F. DeNardo, Richard E. Staub, Alyssa Stropoli, Sara Ruane & Frank T. Burbrink
Phylogeographic inference can determine the timing of population divergence, historical demographic processes, patterns of migration, and when extended to multiple species, the history of communities. Single locus analyses can mislead interpretations of the evolutionary history of taxa and comparative analyses. It is therefore important to revisit previous single-locus phylogeographic studies, particularly those that have been used to propose general patterns for regional biotas and the processes responsible for generating inferred patterns. Here we employ a...

Data from: Experimental evidence for ecological selection on genome variation in the wild

Zachariah Gompert, Aaron A. Comeault, Timothy E. Farkas, Jeffery L. Feder, Thomas L. Parchman, Alex C. Buerkle, Patrik Nosil & Jeffrey L. Feder
Understanding natural selection's effect on genetic variation is a major goal in biology, but the genome-scale consequences of contemporary selection are not well known. In a release and recapture field experiment we transplanted stick insects to native and novel host plants and directly measured allele frequency changes within a generation at 186 576 genetic loci. We observed substantial, genome-wide allele frequency changes during the experiment, most of which could be attributed to random mortality (genetic...

Data from: Functional genomic and phenotypic responses to desiccation in natural populations of a desert drosophilid

Subhash Rajpurohit, Cassia C. Oliveira, William J. Etges & Allen G. Gibbs
We used whole transcriptome microarrays to assess changes in gene expression and monitored mortality rates and epicuticular hydrocarbons (CHCs) in response to desiccation stress in four natural populations of Drosophila mojavensis from Baja California and mainland Mexico. Desiccation had the greatest effect on gene expression, followed by biogeographical variation at regional and population levels. Genes involved in environmental sensing and cuticular structure were up-regulated in dry conditions, while genes involved in transcription itself were down-regulated....

Data from: Ecological segregation in a small mammal hybrid zone: habitat-specific mating opportunities and selection against hybrids restrict gene flow on a fine spatial scale

Quinn Rodney Shurtliff, Peter J. Murphy & Marjorie D. Matocq
The degree to which closely related species interbreed is determined by a complex interaction of ecological, behavioral, and genetic factors. We examine the degree of interbreeding between two woodrat species, Neotoma bryanti and N. lepida, at a sharp ecological transition. We identify the ecological association of each genotypic class, assess the opportunity for mating between these groups, and test whether they have similar patterns of year-to-year persistence on our study site. We find that 13%...

Data from: Phylogeographic diversification of antelope squirrels (Ammospermophilus) across North American deserts

Stacy J. Mantooth, David J. Hafner, , Brett R. Riddle & Robert W. Bryson
We investigated the biogeographic history of antelope squirrels, genus Ammospermophilus, which are widely distributed across the deserts and other arid lands of western North America. We combined range-wide sampling of all currently recognized species of Ammospermophilus with a multilocus data set to infer phylogenetic relationships. We then estimated divergence times within identified clades of Ammospermophilus using fossil-calibrated and rate-calibrated molecular clocks. Lastly, we explored generalized distributional changes of Ammospermophilus since the last glacial maximum using...

Data from: Genetic drift or natural selection? Hybridization and asymmetric mitochondrial introgression in two Caribbean lizards (Anolis pulchellus and Anolis krugi)

Tereza Jezkova, Manuel Leal & Javier A. Rodríguez-Robles
Hybridization and gene introgression can occur frequently between closely related taxa, but appear to be rare phenomena among members of the species-rich West Indian radiation of Anolis lizards. We investigated the pattern and possible mechanism of introgression between two sister species from Puerto Rico, Anolis pulchellus and Anolis krugi, using mitochondrial (ND2) and nuclear (DNAH3, NKTR) DNA sequences. Our findings demonstrated extensive introgression of A. krugi mtDNA (k-mtDNA) into the genome of A. pulchellus in...

Registration Year

  • 2013
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Resource Types

  • Dataset
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Affiliations

  • University of Nevada Reno
    8
  • City University of New York
    1
  • University of Washington
    1
  • Utah State University
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  • Duke University
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  • University of Wyoming
    1
  • Idaho State University
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  • University of Minnesota
    1
  • Columbia River Inter-Tribal Fish Commission
    1
  • Arizona State University
    1