Gregory A Wilson

Gregory A Wilson
Parks Canada

PhD

About

42
Publications
7,122
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3,670
Citations
Citations since 2016
2 Research Items
1467 Citations
2016201720182019202020212022050100150200250
2016201720182019202020212022050100150200250
2016201720182019202020212022050100150200250
2016201720182019202020212022050100150200250

Publications

Publications (42)
Article
Full-text available
In Alberta, wild bison, Bison bison (Linnaeus, 1758) occurring outside protected areas are assumed to have originated from the free-ranging bison populations within Wood Buffalo National Park (WBNP). As bison in WBNP are infected with two diseases, it was assumed that neighboring bison outside WBNP were also diseased. However, the neighboring Harpe...
Article
Full-text available
Migratory barren-ground caribou (Rangifer tarandus groenlandicus) provide an opportunity to examine the genetic population structure of a migratory large mammal whose movements and distribution, in some instances, have not been heavily influenced by human activities that result in habitat loss or fragmentation. These caribou have likely reached lar...
Article
Full-text available
We investigated the status of caribou classified as Rangifer tarandus pearyi by DNA analyses, with an emphasis on those large-bodied caribou identified as ultra pearyi that were collected in summer 1958 on Prince of Wales Island, south-central Canadian Arctic Archipelago. Our comparative assessment reveals that the ultra pearyi from Prince of Wales...
Article
Full-text available
Chronic wasting disease is a transmissible spongiform encephalopathy of cervids, similar to sheep scrapie that has only recently been detected in wild populations of white-tailed deer (Odocoileus virginianus) and mule deer (Odocoileus hemionus hemionus) in western Canada. Relatively little is known about local transmission dynamics of the disease o...
Article
Full-text available
Here we present the first attempt to use the BovineSNP50 Illumina Genotyping BeadChip for genome-wide screening of European bison Bison bonasus bonasus (EB), two subspecies of American bison: the plains bison Bison bison bison (PB), the wood bison Bison bison athabascae (WB) and seven cattle Bos taurus breeds. Our aims were to (1) reconstruct their...
Article
Full-text available
The remaining wild populations of bison have all been through severe bottlenecks. The genomic consequences of these bottlenecks present an interesting area to study. Using a very large panel of SNPs developed in Bos taurus we have carried out a genome-wide screening on the European bison (Bison bonasus; EB) and on two subspecies of American bison:...
Article
Full-text available
A total of 929 polymorphic SNPs in EB (out of 54, 000 SNPs screened using a BovineSNP50 Illumina Genotyping BeadChip), and 1, 524 and 1, 403 polymorphic SNPs in WB and PB, respectively, were analysed. EB, WB and PB have all undergone recent drastic reductions in population size. Accordingly, they exhibited extremely depauperate genomes, deviations...
Article
Full-text available
The Pecorans (higher ruminants) are believed to have rapidly speciated in the Mid-Eocene, resulting in five distinct extant families: Antilocapridae, Giraffidae, Moschidae, Cervidae, and Bovidae. Due to the rapid radiation, the Pecoran phylogeny has proven difficult to resolve, and 11 of the 15 possible rooted phylogenies describing ancestral relat...
Article
Chronic wasting disease (CWD) is increasingly prevalent in multiple wild mule (Odocoileus hemionus) and white-tailed deer (O. virginianus) herds in North America. CWD was first found in Canadian wild mule deer in Saskatchewan in 2000 and has since spread into the neighboring province of Alberta. The infectious agent for CWD is a misfolded prion pro...
Article
Full-text available
The Pecorans (higher ruminants) are believed to have rapidly speciated in the Mid-Eocene, resulting in five distinct extant families: Antilocapridae, Giraffidae, Moschidae, Cervidae, and Bovidae. Due to the rapid radiation, the Pecoran phylogeny has proven difficult to resolve, and 11 of the 15 possible rooted phylogenies describing ancestral relat...
Article
Full-text available
The northern leopard frog (Rana pipiens Schreber, 1782) underwent I large decline in the western portion of its range and only Occurs in 20% of historically occupied sites in Alberta. Its absence may reflect all inability to disperse to these sites because of habitat fragmentation, and human-mediated translocation has been proposed. In this Study,...
Article
Full-text available
A species' mating system is an important life history character-istic that impacts many aspects of its ecology and evolution. Ani-mal mating systems are differentiated by the number of mates each gender has in a breeding season. Many temperate pond-breeding anurans display what is likely a polygynandrous mating system, which may vary with the opera...
Article
Volcanic islands represent excellent models with which to study the effect of vicariance on colonization and dispersal, particularly when the evolution of genetic diversity mirrors the sequence of geological events that led to island formation. Phylogeographic inference, however, can be particularly challenging for recent dispersal events within is...
Article
Full-text available
Maintenance of genetic diversity has recently become a management goal for a number of species, due to its importance for present and future population viability. Genetic drift, primarily through differential reproductive success and inbreeding, can accelerate the loss of genetic diversity in recently recovered populations. We attempt to quantify t...
Article
Gene flow and drift shape the distribution of neutral genetic diversity in metapopulations, but their local rates are difficult to quantify. To identify gene flow between demes as distinct from individual migration, we present a modified Bayesian method to genetically test for descendants between an immigrant and a resident in a nonmigratory life s...
Article
Full-text available
A new Bayesian method that uses individual multilocus genotypes to estimate rates of recent immigration (over the last several generations) among populations is presented. The method also estimates the posterior probability distributions of individual immigrant ancestries, population allele frequencies, population inbreeding coefficients, and other...
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In this report we review issues in conservation genetics, which pertain directly to genetic management and captive breeding of wildlife. Our goal is to evaluate genetic management options for the Hook Lake Wood Bison Recovery Project (HLWBR), a community-based wildlife conservation project that was initiated in 1996 and is run co-operatively betwee...
Article
Full-text available
A new Bayesian method that uses individual multilocus genotypes to estimate rates of recent immigration (over the last several generations) among populations is presented. The method also estimates the posterior probability distributions of individual immigrant ancestries, population allele frequencies, population inbreeding coefficients, and other...
Article
Full-text available
In this study, we used 21 microsatellite loci to establish the reproductive success of the wood bison (Bison bison athabascae) population at Elk Island National Park, Alberta, Canada. Wood bison are considered threatened in Canada, and this population is currently used to found new populations. Despite the low levels of genetic variation in this po...
Article
There are two recognized subspecies of bison, wood (Bison bison athabascae) and plains (Bison bison bison) bison. The establishment of most bison populations from a small number of individuals has raised concerns about their genetic variation. To this end, 11 bison populations were surveyed with 11 microsatellite loci in order to calculate genetic...
Article
There are two recognized subspecies of bison, wood (Bison bison athabascae) and plains (Bison bison bison) bison. The establishment of most bison populations from a small number of individuals has raised concerns about their genetic variation. To this end, 11 bison populations were surveyed with 11 microsatellite loci in order to calculate genetic...

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