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Full-Text Articles in Life Sciences
Impact Of Urban Factors And Invasive Species On White-Footed Mouse (Peromyscus Leucopus) Habitat Use And Foraging Behavior In An Urban Forest Park., William Persons
Impact Of Urban Factors And Invasive Species On White-Footed Mouse (Peromyscus Leucopus) Habitat Use And Foraging Behavior In An Urban Forest Park., William Persons
Electronic Theses and Dissertations
White-footed mice (Peromyscus leucopus) select for areas of greater canopy cover at the macro scale, and for areas with more CWD at the micro-scale. White-footed mice potentially avoid habitats with higher invasive species richness. White-footed mice preferentially foraged under the honeysuckle canopy in response to changes in temperature and humidity. This study suggests that the interaction between P. leucopus and ground layer invasive species is complex, and that the effect of moonlight may be diminished in this urban park. Urban ecosystems demonstrate high levels of anthropogenic land-use change, modification of abiotic inputs, and altered disturbance regimes. These changes result …
Movement, Habitat Selection, And Survival Of Female Wood Ducks (Aix Sponsa) And Ducklings At Long Point, Ontario., Matthew E. Dyson
Movement, Habitat Selection, And Survival Of Female Wood Ducks (Aix Sponsa) And Ducklings At Long Point, Ontario., Matthew E. Dyson
Electronic Thesis and Dissertation Repository
Nest box programs provide additional nesting opportunities for wood ducks throughout their breeding range. The purpose of my research was to understand habitat use and survival of wood ducks produced from nest boxes during the brood-rearing period. I used radio-telemetry to monitor female wood ducks and ducklings to 30 days post-hatch. Females showed the greatest selection for swamp, scrub-shrub, and emergent marsh habitats, and used emergent marsh most. Female survival was high (0.90, 95% CI = 0.81 – 1.0). Conversely, brood survival (0.47, 95% CI = 0.33 - 0.69) and duckling survival (0.18, 95% CI = 0.14 – 0.22) were …
The Effect Of Thermoregulation And Roads On The Movements And Habitat Selection Of Moose In Massachusetts, David W. Wattles
The Effect Of Thermoregulation And Roads On The Movements And Habitat Selection Of Moose In Massachusetts, David W. Wattles
Doctoral Dissertations
Massachusetts, U.S.A. is located along the southern boundary of the geographic range of moose (Alces alces) in North America. This is an atypical environment for moose, because of its extremely high levels of human development and high year-round temperatures, which are possibly at the limits of moose physiological tolerances. I investigated the role of these two factors on moose movements and habitat selection to determine how human development of the landscape and temperature influence moose occupation of this extreme environment. In addition, the response of moose to these factors provides insights into the influence of development and temperature …
Cows And Plows: Science-Based Conservation For Grassland Songbirds In Agricultural Landscapes, Marisa K. Lipsey
Cows And Plows: Science-Based Conservation For Grassland Songbirds In Agricultural Landscapes, Marisa K. Lipsey
Graduate Student Theses, Dissertations, & Professional Papers
Temperate grasslands are among earth’s most imperiled ecosystems. In North America, steep declines of endemic songbird populations indicate that grassland loss and degradation may be approaching critical levels. Grasslands are agricultural landscapes largely (~85%) under private ownership with little formal protection status. Remaining bird populations depend on grazing lands that have not been converted to cropland. We combine regional data from a hotspot for grassland bird diversity (northeast Montana, USA; 26,500-km2) with continental data spanning the northern Great Plains (1,000,000-km2) to evaluate how land use and management influence bird distribution and abundance. Regionally, habitat used by seven grassland specialists spanned …