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- Biogeography—Climatic factors; Chisel-toothed Kangaroo Rat; Desert Horned Lizard; Dipodomys microps – Climatic factors; Evolutionary genetics; Paleoclimatology; Phylogeography; Phrynosoma platyrhinos – Climatic factors (1)
- Crotalus mitchellii (1)
- Flammulated Owls (1)
- Foraging (1)
- Genetic diversity (1)
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- Habitat selection (1)
- Landscape genetics (1)
- Metapopulation dynamics (1)
- Mojave Desert (1)
- Movement ecology (1)
- Otus flammeolus (1)
- Phylogeography (1)
- Population density (1)
- Population genetics (1)
- Population history (1)
- Predator-prey relationship (1)
- Rattlesnakes (1)
- Reptilian spatial studies (1)
- Seasonal travel (1)
- Sex role (1)
- Western United States (1)
Articles 1 - 3 of 3
Full-Text Articles in Animal Sciences
Reconstructing Species Responses To Past Climatic Changes Using Niche Modeling And Genetic Data, Tereza Jezkova
Reconstructing Species Responses To Past Climatic Changes Using Niche Modeling And Genetic Data, Tereza Jezkova
UNLV Theses, Dissertations, Professional Papers, and Capstones
Glacial – interglacial cycles have a pronounced impact on species distributions and genetic structure. Many species shift their distributions to lower latitudes and altitudes during the colder glacial periods and expand northwards and up the elevation during warmer interglacial periods. Some species however are capable of adapting to changing environment which allows them to persist in place despite climatic changes. I explored how climatic changes after the last glacial maximum (LGM) effected two species inhabiting the deserts of western North America: one mammal (Chisel-toothed Kangaroo Rat, Dipodomys microps) and one reptile (Desert Horned Lizard, Phrynosoma platyrhinos). I used …
Space Use And Mating Activities In The Speckled Rattlesnake, Xavier Glaudas
Space Use And Mating Activities In The Speckled Rattlesnake, Xavier Glaudas
UNLV Theses, Dissertations, Professional Papers, and Capstones
Our understanding of space use variation in response to the temporally varying importance of specific resources is poorly understood in reptiles, because spatial studies are rarely placed into an explicit ecological and behavioral context. I examined how space use differed between the mating and post-mating seasons, and how this variation related to three important resources, mating partners, food, and refuge, in an adult population of the speckled rattlesnake Crotalus mitchellii in the Mojave Desert of southwestern North America. During the mating season (late April to early June), Crotalus mitchellii increased distance traveled per unit time, because wide-ranging behavior likely enhances …
Phylogeography And Landscape Genetics Of The Flammulated Owl: Evolutionary History Reconstruction And Metapopulation Dynamics, Markus Mika
UNLV Theses, Dissertations, Professional Papers, and Capstones
Taxa occur across ever changing landscapes on different spatial and temporal scales. Choosing the appropriate scale for collecting data and drawing inferences is critical for understanding the history of a species and its populations. Here, I describe research in which I investigated phylogenetic patterns and population genetics for Flammulated Owls (Otus flammeolus) representing 14 localities from throughout the species' distribution, and compared regional landscape features with the distribution of genetic diversity. This small, insectivorous owl migratory (Family Strigidae) breeds in western conifer and deciduous dry forests of the mountains from southern Mexico to British Columbia. Sedentary populations are found in …