Index Catalog // ScholarsArchive@OSU

Exposure to strangers does not cause pregnancy distribution or infanticide in the gray-tailed vole

Creator:: De la Maza, Helen M.
Abstract:: Numerous laboratory studies with at least 12 species of rodents have reported that exposure of females to strange males results in pregnancy disruption or infanticide. The proximate causes and ultimate benefits of these behaviors have been proposed from an evolutionary perspective. To determine if exposure to strange males or females...
Resource Type:: Masters Thesis
Full Text:: infanticide in the gray-tailed vole AN ABSTRACT OF THE THESIS OF Helen M. de la Maza for the degree of

Interactions between grizzly bears and hikers in Glacier National Park, Montana

Creator:: Jope, Katherine Louise McArthur
Abstract:: Behavior of grizzly bears (Ursus arctos) toward people was studied by examining hikers' reports of grizzly bear observations and by intensively observing grizzlies in an area of Glacier National Park that was heavily used by day-hikers. Of concern were the apparent habituation of grizzly bears to people in the study...
Resource Type:: Masters Thesis
Full Text:: vegetation or animal matter that is available at a given time and, in some areas, depend upon occasional

The influence of social structure and molecular evolution on genetic diversity in the sperm whale (Physeter macrocephalus)

Creator:: Alexander, Alana
Abstract:: The sperm whale (Physeter macrocephalus) shows some of the most derived characteristics of any mammal: a large body size, large brain, complex social organization and a capacity for deep foraging dives that few other marine mammals can match. Despite a history of exploitation that removed hundreds of thousands of individuals,...
Resource Type:: Dissertation
Full Text:: on Genetic Diversity in the Sperm Whale (Physeter macrocephalus) AN ABSTRACT OF

Movement and space use by the green hermit (Phaethornis guy) in a fragmented landscape in Costa Rica

Creator:: Volpe, Noelia L.
Abstract:: Human activities have altered Earth’s ecosystems. Most biomes have experienced a 20-50% conversion to human use. Loss of habitat has obvious effects on the persistence of species. Fragmentation, however, may also negatively affect biodiversity for those species that exhibit behavioral responses to changes in habitat configuration. Such behavioral changes include...
Resource Type:: Masters Thesis
Full Text:: ) in a Fragmented Landscape in Costa Rica

The Effect of Group Size on Individual Roles and the Potential for Cooperation in Group Bubble-net Feeding Humpback Whales (Megaptera novaeangliae)

Creator:: Mastick, Natalie
Abstract:: Group foraging is observed in many species as a means to increase the ability of members of the group to find and exploit patchy prey. Group foraging can be exhibited in a number of different contexts based on the relationships between the participants, including by-product mutualism. One variant of by-product...
Resource Type:: Masters Thesis
Full Text:: . Anderson, C., & Franks, N. R. (2001). Teams in animal societies. Behavioral Ecology, 12(5), 534-540

Life history and environmental influences on avian incubation and parental care in songbirds

Creator:: Austin-Bythell, Suzanne H.
Abstract:: Patterns of nest attendance behavior by breeding birds represent a parent-offspring trade-off in which adults balance self-maintenance with parental care decisions. Incubation, in particular, is of interest because adults must provide an environment suitable for embryonic development through nest-building and contact-incubation. We evaluated how adult incubation constancy and nest visitation...
Resource Type:: Dissertation
Full Text:: and Parental Care in Songbirds

Influence of movement corridors on enclosed populations of the gray-tailed vole : do immigrants affect reproduction and dispersal of residents in a patchy environment?

Creator:: Davis-Born, Renee
Abstract:: I monitored demography, movement, and reproductive behavior of gray-tailed voles, Microtus canicaudus, in experimental habitat patches with and without corridors. I tested the hypotheses that reproductive rate, juvenile recruitment, and population size and growth rate would be affected negatively by immigrants that were introduced to resident groups (+ male and...
Resource Type:: Masters Thesis
Full Text:: housed individually in 30.5 x 20 x 13 cm cages at the Laboratory Animal Research Center (LARC) on the

Habitat characteristics associated with abundance of band-tailed pigeons and use of mineral sites in the Pacific Northwest

Creator:: Overton, Cory T.
Abstract:: Index counts for the Pacific Coast race of the band-tailed pigeon (Columba fasciata monilis) have declined by -2% per year since survey efforts began in the 1950's and 60's. Mineral sites, important resources with high ion concentrations, are regularly visited by band-tailed pigeons which nest in surrounding forest lands. I...
Resource Type:: Masters Thesis
Full Text:: for the degree of Master of Science in Wildlife Science presented September 4. 2003. Title: Habitat

Population demography, resource use, and movement in cooperatively breeding Micronesian Kingfishers

Creator:: Kesler, Dylan C.
Abstract:: Island systems and species are susceptible to extinction because of their small population size and an ecological naiveté from an evolutionary past lacking strong competition and predation. For example, only one-fifth of the world’s bird species occur on islands, yet more than 90% of the avian extinctions witnessed during historic...
Resource Type:: Dissertation
Full Text:: . K. Reeve. 1994. Partitioning of reproduction in animal societies. Trends in Ecology and Evolution 9

Advantages of habitat selection and sexual segregation in mule and white-tailed deer

Creator:: Main, Martin Benjamin
Abstract:: I studied sexual segregation in mule deer (Odocoileus hemionus) and white-tailed deer (Q. virginianus) in different environments and at different population densities to test the hypothesis that sexual segregation occurs in ungulates as the result of different reproductive strategies; females select habitat and behave in manners primarily designed to promote...
Resource Type:: Dissertation

ScholarsArchive@OSU

Exposure to strangers does not cause pregnancy distribution or infanticide in the gray-tailed vole

Interactions between grizzly bears and hikers in Glacier National Park, Montana

The influence of social structure and molecular evolution on genetic diversity in the sperm whale (Physeter macrocephalus)

Movement and space use by the green hermit (Phaethornis guy) in a fragmented landscape in Costa Rica

The Effect of Group Size on Individual Roles and the Potential for Cooperation in Group Bubble-net Feeding Humpback Whales (Megaptera novaeangliae)

Life history and environmental influences on avian incubation and parental care in songbirds

Influence of movement corridors on enclosed populations of the gray-tailed vole : do immigrants affect reproduction and dispersal of residents in a patchy environment?

Habitat characteristics associated with abundance of band-tailed pigeons and use of mineral sites in the Pacific Northwest

Population demography, resource use, and movement in cooperatively breeding Micronesian Kingfishers

Advantages of habitat selection and sexual segregation in mule and white-tailed deer

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