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Site tenacity, mate retention and sexual dimorphism in Black Terns

Creator:: Stern, Mark A.
Abstract:: Between 1982-1984 I studied site tenacity and mate retention in Black Terns at Sycan Marsh, Lake County, Oregon. I banded 778 adult Black Terns and used this marked population to test the hypotheses that site tenacity and mate retention would be less for Black Terns which nest in variable marsh...
Resource Type:: Masters Thesis
Full Text:: traits, culmen length and total head length, males were significantly larger (p<0.05) than females

Utilization of mineral sites by bandtailed pigeons

Creator:: Passmore, Michael Forrest
Abstract:: The occurrence of band-tailed pigeons (Columba fasciata) three mineral sites in Western Oregon was studied during the summers of 1974-1976. Objectives of the study were o: determine seasonal patterns of utilization of mineral sites by pigeons of different sex and age classes; determine productivity of pigeon populations associated with Mineral...
Resource Type:: Masters Thesis
Full Text:: Index. The Lincoln Index formula used was: M nx xiP -xi in where P. = estimated population size at

Effects of winter grazing by geese on rye grass seed yield

Creator:: Clark, Sally Lynn
Resource Type:: Masters Thesis
Full Text:: boundaries of Finley NWR, the study fields, and observation areas. (p ME THODS The effect of grazing by

Comparative ecology of several subspecies of Canada geese during winter in western Oregon

Creator:: Simpson, Susan Gay
Resource Type:: Masters Thesis
Full Text:: Canada geese (B. c. taverneri) increased significantly (P < 0.01) from -25 percent in 1975-76, to -50

Migrational characteristics and survival rates of mallards banded at Malheur National Wildlife Refuge

Creator:: Furniss, Sean Barry
Abstract:: An analysis of 4,385 recoveries of mallards (Anas platyrhynchos), that were reported during the years 1929 to 1972, was made to determine the migrational characteristics and survival rates of mallards banded at Malheur National Wildlife Refuge in southeastern Oregon. Two populations, a transitory population and a wintering population, were banded...
Resource Type:: Masters Thesis
Full Text:: ACKNOWLEDGEMENTS The assistance of R. M. Storm and H. M. Wight in preparation of this thesis is appreciated

Fall migration of mourning doves in the western management unit

Creator:: Miles, A. Keith
Resource Type:: Masters Thesis
Full Text:: relati vely uniform thrcughout the Unit; no si gni - ficant differences (p < 3.05) were detected between

Relations between the distribution of Canada geese and the quantity and quality of forage at W. L. Finley National Wildlife Refuge, 1984-1987

Creator:: Naughton, Maura
Resource Type:: Masters Thesis
Full Text:: quantity of grass, and number and density of geese (P=0.01 and P=0.14, respectively). However, at the end

Supplemental feeding influences reproductive success of the Hawaiian goose (Branta sandvicensis) at Haleakala National Park, Maui, Hawai'i

Creator:: Tamayose, Joy
Abstract:: Low reproductive success has been typical of high elevation populations of the Hawaiian goose (Branta sandvicensis) or nēnē. Researchers identified predation and inadequate nutrition as limiting factors. Reproductive success remained low in most years despite on-going predator control programs. I used a supplemental feeding program over two breeding seasons in...
Resource Type:: Masters Thesis
Full Text:: ACKNOWLEDGEMENTS Mahalo nui loa to Cathleen Bailey, Ronald J. Nagata, Sr., and the Endangered Species

Foraging ecology of prairie falcons in northern California

Creator:: Haak, Bruce A.
Abstract:: Nine Prairie Falcons (Falco mexicanus) were radio-tagged in northern California during the spring and summer of 1976 and 1977 to study foraging behavior. The mean home range size for 3 males was 227.8 km²; largest portions of the home range were used during the incubation period. Shifts in foraging areas...
Resource Type:: Masters Thesis
Full Text:: m) (P < 0.05) and shorter for males (=385m) than females (=641 m) in noncroplands (0.05 < P < 0.1

Time budget and habitat use patterns of marbled godwits (Limosa fedoa beringiae) breeding on the Alaska Peninsula

Creator:: Mehall-Niswander, Angela C.
Abstract:: Diurnal time budgets and habitat use patterns of breeding Ugashik marbled godwits (Limosa fedoa beringiae) were studied on the north-central portion of the Alaska Peninsula during spring and summer 1995-1996. Marbled godwits were observed from blinds and behaviors were described for the four phases of the breeding season: pair-formation, egg-laying,...
Resource Type:: Masters Thesis
Full Text:: providing general direction and guidance throughout this project; Refuge Manager Ronald E. Hood for his

ScholarsArchive@OSU

Site tenacity, mate retention and sexual dimorphism in Black Terns

Utilization of mineral sites by bandtailed pigeons

Effects of winter grazing by geese on rye grass seed yield

Comparative ecology of several subspecies of Canada geese during winter in western Oregon

Migrational characteristics and survival rates of mallards banded at Malheur National Wildlife Refuge

Fall migration of mourning doves in the western management unit

Relations between the distribution of Canada geese and the quantity and quality of forage at W. L. Finley National Wildlife Refuge, 1984-1987

Supplemental feeding influences reproductive success of the Hawaiian goose (Branta sandvicensis) at Haleakala National Park, Maui, Hawai'i

Foraging ecology of prairie falcons in northern California

Time budget and habitat use patterns of marbled godwits (Limosa fedoa beringiae) breeding on the Alaska Peninsula

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