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Ecology and Evolutionary Biology Commons™
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- Fisheries management (2)
- Bacillus thuringiensis (1)
- Brassica napus (1)
- Brassica rapa (1)
- Brook trout (1)
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- Chimpanzee (1)
- Demographics (1)
- Ex situ (1)
- Gene flow (1)
- Genetic diversity (1)
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- Genetics (1)
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- Horseshoe crab (1)
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- Louisiana black bear (1)
- Mark-recapture (1)
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- Microsatellite (1)
- Parentage (1)
- Phenotypic divergence (1)
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Articles 1 - 8 of 8
Full-Text Articles in Ecology and Evolutionary Biology
Pedigree And Molecular Assessment Of Relatedness In A Captive Chimpanzee Population, Francesca Golus
Pedigree And Molecular Assessment Of Relatedness In A Captive Chimpanzee Population, Francesca Golus
Masters Theses
As a crucial component of biodiversity, genetic diversity contributes to variability among individuals, allowing populations of endangered species to be resilient in the face of changing environmental conditions. Zoological institutions have become a cornerstone of conservation efforts and a refuge for endangered species given threats imposed on wild populations by climate change, habitat fragmentation and degradation, and overexploitation. Chimpanzees (Pan troglodytes) are an endangered species experiencing drastic population decline in the wild, yet are common residents in zoos and wildlife sanctuaries. To sustain long-term, genetically viable populations of species of concern, zoos use studbooks and paternity testing to …
Population Genetic Analysis Of Atlantic Horseshoe Crabs (Limulus Polyphemus) In Coastal Massachusetts., Katherine T. Johnson
Population Genetic Analysis Of Atlantic Horseshoe Crabs (Limulus Polyphemus) In Coastal Massachusetts., Katherine T. Johnson
Masters Theses
Atlantic horseshoe crabs (Limulus polyphemus) have endured decades of intense harvest pressure. Genetics studies have shown evidence of distinct sub-groups spanning the coast, although few fine-scale studies have been done to delineate these groups on a local level. Massachusetts lies directly between two of these sub-groups. With documented differences in prosomal widths of horseshoe crabs from either side of Cape Cod, it is possible that Cape Cod is a barrier to gene flow and that there are two distinct genetic groups within Massachusetts. Regulations currently consider all horseshoe crabs to be of one stock. I examined 6 microsatellite …
Low-Head Dams On Habitat, Fish Functional Guilds And Genetic Structuring In A Midwestern River System, Shannon Cassandra Frary Smith
Low-Head Dams On Habitat, Fish Functional Guilds And Genetic Structuring In A Midwestern River System, Shannon Cassandra Frary Smith
Masters Theses
The natural flow regime of the majority of rivers in the United States has been altered by anthropogenic structures. This loss of connectivity plays a strong role in shaping river ecosystems by altering physical habitat characteristics and shaping fish community assemblages. Although the impacts of large dams on river systems are well documented and often easy to observe, there are fewer studies on the effects of smaller low-head dams. Additionally, the influences of low-head dams on the genetic structuring of small-bodied riverine fishes have yet to be fully explored. I assessed the effects of two low-head dams on the Vermilion …
Experimental Test Of Genetic Rescue In Isolated Populations Of Brook Trout, Zachary L. Robinson
Experimental Test Of Genetic Rescue In Isolated Populations Of Brook Trout, Zachary L. Robinson
Masters Theses
Translocations are an important aspect of the management of natural populations in an increasingly fragmented landscape. Maintaining connectivity and gene flow is beneficial for both contemporary fitness and adaptive potential in the face of environmental change. Genetic rescue (GR) can alleviate inbreeding depression, genetic load, and increase adaptive potential of populations. Here, I have translocated 10 (5 of each sex) brook trout (Salvelinus fontinalis) to four geographically proximate and environmentally similar fragmented stream-dwelling populations of brook trout in Virginia to test for genetic rescue. The translocated brook trout contributed to more families than would be expected under neutral …
Population Demographics And Genetic Structure Of Black Bears In Coastal Louisiana, Jesse Charles Troxler
Population Demographics And Genetic Structure Of Black Bears In Coastal Louisiana, Jesse Charles Troxler
Masters Theses
The range and abundance of the Louisiana black bear (Ursus americanus luteolus) were greatly diminished during the 20th century. This subspecies was reduced to 3 small, isolated subpopulations in Louisiana as bottomland hardwood habitat was converted to agriculture. These bears were listed as threatened by the U.S. Fish and Wildlife Service in 1992 and a recovery plan was published in 1995. Recovery requires estimates of population parameters to evaluate current population status and future viability. I conducted a mark-recapture study from 2010 to 2012 to estimate demographic parameters of the coastal population of Louisiana black bears. Because inbreeding …
Consequences Of Gene Flow And Transgene Introgression In Hybrids Between Transgenic Brassica Napus And Its Weedy Wild Relative Brassica Rapa, Reginald Jason Millwood
Consequences Of Gene Flow And Transgene Introgression In Hybrids Between Transgenic Brassica Napus And Its Weedy Wild Relative Brassica Rapa, Reginald Jason Millwood
Masters Theses
The adventitious presence of transgenes and their potential impact on the environment has been a topic of concern for many years. To address these concerns the following chapters discuss past and current research of gene flow and introgression, methods for transgene detection and monitoring, and the results from field-level experiments using artificially introgressed advanced generation hybrids. The field studies were designed to be a worst-case scenario where hybrids were produced by hand-crossing transgenic Brassica napus (AACC, 2n = 38) and its weedy wild relative Brassica rapa (AA, 2n = 20). B. napus was transgenic for the green fluorescent protein [m-GFP-5 …
The Gene Frequencies Of Ten Different Alleles In Man As Determined By The Hardy-Weinberg Equilibrium, Elizabeth Suzanne Shaw
The Gene Frequencies Of Ten Different Alleles In Man As Determined By The Hardy-Weinberg Equilibrium, Elizabeth Suzanne Shaw
Masters Theses
No abstract provided.
Competition And Natural Selection Among Laboratory And Naturally Occurring Populations Of Drosophila Melanogaster, John M. Connor
Competition And Natural Selection Among Laboratory And Naturally Occurring Populations Of Drosophila Melanogaster, John M. Connor
Masters Theses
No abstract provided.