Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 8 of 8 for “"pupfish"”.
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Winter dynamics in mountain lakes and impacts of an introduced species to the endangered Devils Hole pupfish
… the threat of climate change and an endangered pupfish species in a limnocrene spring, facing the threat of a new colonizing species. Climate change is causing ice-periods on lakes to shorten globally and elevation-dependent warming means mountain lakes may be at a higher risk of warming and ice …
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A model to understand population decline of the Devil's Hole pupfish (Cyprinodon diabolis) and support habitat management decisions
… Devil's Hole, the population of the Devil's Hole Pupfish showed slight but steady increase from the 1970s until the mid-1990s when the population began a steady deCline In this study I developed a system dynamics model to help the Devil's Hole Pupfish Recovery Team understand the recent decline …
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Phylogeographic structure of the Atlantic pupfish, Cyprinodon variegatus (Cyprinodontidae), along the eastern coast of North America: Evidence from mitochondrial nucleotide sequences
Cyprinodon variegatus is a pupfish that inhabits the Atlantic coast of North America, nearly continuously, from Massachusetts to Belize. This research attempts to resolve the phlylogeography of C. variegatus by investigating the genetic sequence structure of the mitochondrial control region …
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Population Genetics of Death Valley Pupfishes (Cyprinodontidae:Cyprinodon Spp.) and the Identification of a New Retrotransposable Element Family
… relationships and evolutionary histories of pupfish populations (Cyprinodontidae: Cyprinodon spp.) from the remnant aquatic habitats of Death Valley was approached by exploring the genetic structure and divergence within and among populations using mitochondrial and nuclear DNA markers. The …
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Reproductive Isolation and Genetic Divergence in a Young "Species Flock" of Pupfishes (Cyprinodon sp.) from San Salvador Island, Bahamas
… process. A "miniature" species flock of pupfish (Cyprinodon variegatus) discovered in lakes on San Salvador Island, Bahamas has evolved in less than 6 000 years, and is, therefore, important to the study of the pace of evolutionary processes. The San Salvador Island pupfish flock is …
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Impacts of introduced crayfish on Ash Meadows aquatic communities: Ash Meadows National Wildlife Refuge, Nevada
… federally protected endemic life, specifically pupfish (Cyprinodon nevadensis mionectes and Cyprinodon nevadensis pectoralis) and the federally threatened Ash Meadows naucorid (Ambrysus amargosus). Crayfishes may be potential predators and/or competitors for resources. I investigated the …
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Molecular drive and population differentiation of satellite DNAs in Cyprinodon variegatus
… sequences in the genomes of several species of pupfish of the genus <u>Cyprinodon</u> as well as in some cyprinodontid species of the genera <u>Jordanella</u> and <u>Floridichthys</u>. No significant hybridization was detected with the New World species <u>Cualac tesselatus</u> and Megupsilon …
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Variation at Major Histocompatibility Complex Class I Loci In Two Killifish Species with Reduced Genetic Variance
… in several members of the Death Valley pupfish species complex. Two of these species, Cyprinodon diabolis and Cyprinodon salinus have undergone intense historical or ongoing population bottlenecks. Despite the action of random genetic drift acting on these species, both maintain multiple …