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Articles 1 - 4 of 4
Full-Text Articles in Population Biology
Modeling And Analysis Of Biological Populations, Joan Lubben
Modeling And Analysis Of Biological Populations, Joan Lubben
Department of Mathematics: Dissertations, Theses, and Student Research
Asymptotic and transient dynamics are both important when considering the future population trajectory of a species. Asymptotic dynamics are often used to determine whether the long-term trend results in a stable, declining or increasing population and even provide possible directions for management actions. Transient dynamics are important for estimating invasion speed of non-indigenous species, population establishment after releasing biocontrol agents, or population management after a disturbance like fire. We briefly describe here the results in this thesis.
(1) We consider asymptotic dynamics using discrete time linear population models of the form n(t + 1) = An(t) where …
Natural Life Histories Of Alaska Colias (Lepidoptera: Pieridae), Jack L. Harry
Natural Life Histories Of Alaska Colias (Lepidoptera: Pieridae), Jack L. Harry
The Taxonomic Report of the International Lepidoptera Survey
Eight species of the genus Colias of Alaska were studied during the years of 2005, 2006, and 2007. Natural life histories were determined, immature stages described, measured, and photographed. Scanning Electron Microscope (SEM) pictures of the micropyle of five species are included.
Thirty-Seven Additional Microsatellite Loci In The Pacific Lion-Paw Scallop (Nodipecten Subnodosus) And Cross-Amplification In Other Pectinids, Jessica Lynn Petersen, Ana M. Ibarra, Bernie May
Thirty-Seven Additional Microsatellite Loci In The Pacific Lion-Paw Scallop (Nodipecten Subnodosus) And Cross-Amplification In Other Pectinids, Jessica Lynn Petersen, Ana M. Ibarra, Bernie May
Department of Animal Science: Faculty Publications
We characterized 37 new microsatellite markers in the Pacific lion-paw scallop (Nodipecten subnodosus) and tested for cross-amplification in four other species. Genetic diversity was estimated using 24 individuals from the Lagoon Ojo de Liebre, B.C.S., Mexico. Allelic richness varied from 5 to 27 alleles per locus and the average expected heterozygosity was 0.76. Ten loci exhibited significant departure from Hardy–Weinberg equilibrium likely due to the presence of null alleles. Sixteen of these markers cross-amplified in closely related N. nodosus, while little or no amplification was observed in three Argopecten species.
Demographics And Habitat Selection For The Western Meadowlark (Sturnella Neglecta) In The Nebraska Sandhills, Matthew D. Giovanni
Demographics And Habitat Selection For The Western Meadowlark (Sturnella Neglecta) In The Nebraska Sandhills, Matthew D. Giovanni
Department of Agronomy and Horticulture: Dissertations, Theses, and Student Research
The prairie ecosystems of the Great Plains region in North America have largely been replaced and fragmented with industrial agriculture and invasive herbaceous and woody plant species. The concurrent and large-scale suppression of wildfire and elimination of grazing by native ungulates may have further decreased the availability and quality of habitat for wildlife. Indeed, 2004 estimates indicate only 30% of historic grasslands in the Great Plains still exist, while the trends of decreased land area enrolled in the Conservation Reserve Program and increased land area in commercial agriculture indicate continued loss of habitat. This decrease in habitat availability continues to …