Index Catalog // ScholarsArchive@OSU

Creator:: Ocana, Melissa Ann S.
Abstract:: Olive ridley sea turtles (Lepidochelys olivacea) present an interesting case study of the conservation of wildlife species that aggregate in high densities and have served as resources for human consumption. Ridleys exhibit synchronized mass-nesting behavior, during events called "arribadas," where thousands of females lay eggs together in a small area...
Resource Type:: Masters Thesis
Full Text:: ABSTRACT OF THE THESIS OF Melissa Ann S. Ocana for the degree of Master of Science in Wildlife

Creator:: Ramirez, Matthew D.
Abstract:: Ontogenetic niche theory predicts that as organisms grow they make size-specific changes in habitat use and diet to optimize growth and survival. A variety of factors contribute to growth and survival in different habitats, ultimately leading to variation in life history that can affect population dynamics. An understanding of the...
Resource Type:: Masters Thesis
Full Text:: like to recognize and thank my committee members, Jessica Miller, Melissa Snover, and Selina

Creator:: Vaughan, Jason R.
Abstract:: Nest counts from the largest subpopulation of the loggerhead sea turtle (Caretta caretta) in the Atlantic, peninsular Florida, have been declining since 1998. Analyzing trends of nests and adult females is insufficient to determine the overall status of a sea turtle population, due to variation in nesting frequency and a...
Resource Type:: Masters Thesis
Full Text:: , Selina Heppell, David Sampson, Lea Murphy and Melissa Snover for all of their help and inspiring

Creator:: Piacenza, Susan E. H.
Abstract:: Green sea turtles, Chelonia mydas, have endangered and threatened populations globally, but several populations show signs of population recovery. In Hawaii, nesting female green turtles have increased 5.7% year⁻¹ since 1973, but wide fluctuations in census counts of nesting females make recovery diagnosis difficult. For effective management planning, it is...
Resource Type:: Dissertation
Full Text:: Haas and Melissa Warden, (NOAA – NEFSC) met with me to discuss and compare simulating sea turtle

Creator:: Ramirez, Matthew D.
Abstract:: Somatic growth variation manifests from the cumulative effects of a suite of biological, ecological, and environmental processes and can have profound effects on individual fitness and species population dynamics. As ectotherms whose growth dynamics are greatly influenced by environmental factors, sea turtles display considerable variation in somatic growth within and...
Resource Type:: Dissertation
Full Text:: Melissa Snover for providing bone growth data and input on manuscripts. Thank you to

Creator:: Bouska, Cassie K.
Abstract:: Bullfrogs were introduced into Oregon in the early 1900s and have become widespread members of many wetland communities. Little is known of their ecology outside their native range, although they may play a role in the current declines observed in native herpetofauna. I analyzed the diets of 401 bullfrogs from...
Resource Type:: Masters Thesis
Full Text:: . Melissa Flint, you were invaluable, both as a fellow field tech and as a friend. Victoria Cronin, Bram

Creator:: Chelgren, Nathan D.
Abstract:: The purpose of this study was to investigate the survival and movements of newly metamorphosed Northern Red-legged frogs (Rana aurora aurora) as they emigrated from two ephemeral breeding ponds. Quantifying survival and movement rates will be important to our understanding how changes to terrestrial and aquatic systems affect behavior and...
Resource Type:: Masters Thesis
Full Text:: brutally hard. I am thankful to many others who contributed at times in the field: Troy Guy, Melissa

Creator:: Hackmann, Crystal R.
Abstract:: Estuaries provide juvenile salmonids with highly productive feeding grounds, refugia from tidal fluctuations and predators, and acclimation areas for smoltification. However, these dynamic, fluctuating salinity environments may also be physiologically stressful to growing juvenile fish. In order to evaluate the costs and benefits of estuarine marshes to juvenile Chinook salmon,...
Resource Type:: Masters Thesis
Full Text:: . We held the fish in 2 m circular tanks with -42°C aerated, pathogen-free well water in a flow

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