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Ecology And Growth Of Tamias Palmeri And Testing Of A Protocol To Monitor Habitat Relationships, Christopher Eric Lowrey
Ecology And Growth Of Tamias Palmeri And Testing Of A Protocol To Monitor Habitat Relationships, Christopher Eric Lowrey
UNLV Retrospective Theses & Dissertations
The ecology of Tamias palmeri is investigated. Presence-absence and relative abundance of T. palmeri are related to principle component scores of habitat variables using logistic regression and multiple linear regression, respectively. Relative abundance of Tamias palmeri estimated with live capture-recapture was positively correlated with shrub cover and negatively correlated with slope. Timing of emergence from dens by juveniles was earlier and weights of juveniles were greater in ravine areas as compared to upslope areas. Track plates were not correlated with trap captures. Track plate success was not correlated with habitat variables. The results of this study were used to build …
Habitat Patch Dynamics Of Desert Bighorn Sheep Ovis Canadensis Nelsoni In The Eastern Mojave Desert, Darren Del Divine
Habitat Patch Dynamics Of Desert Bighorn Sheep Ovis Canadensis Nelsoni In The Eastern Mojave Desert, Darren Del Divine
UNLV Retrospective Theses & Dissertations
The individual chapters of this Dissertation were designed to examine desert bighorn habitat, and the disjunct nature of that habitat. The findings of the first chapter illustrated that although 30 m elevation data yielded a more accurate depiction of the landscape, 100 m data was still adequate for determining habitat quality. The second chapter illustrated that the traditional bighorn habitat model was inadequate when applied to four Eastern Mojave Desert mountain ranges because of its unrealistic distance to permanent water requirement. It was also determined that a single habitat definition could not be formulated that worked equally well on all …
Avian Habitat Use In Southern Nevada Riparian Areas With Varying Amounts Of Tamarix Ramosissima, Sandra Lou Haigh
Avian Habitat Use In Southern Nevada Riparian Areas With Varying Amounts Of Tamarix Ramosissima, Sandra Lou Haigh
UNLV Retrospective Theses & Dissertations
Avian species richness, species diversity, and density were measured and compared over a 21 month period on six riparian sites in Lake Mead National Recreation Area (LMNRA), southern Nevada. Sites consisted of two lake shore areas with almost pure stands of Tamarix ramosissima and four stream side areas, two with mixed Tamarix and native vegetation and two with only native vegetation. Overall mean avian species richness, diversity, and density were lowest on lake shore sites, intermediate on mixed stream sites and highest on stream sites with native vegetation. Differences in these values were significant between lake shore and stream sites …