Index Catalog // ScholarsArchive@OSU

Rapid endangered species assessment : a novel approach to improve extinction risk assessments in poorly known species

Creator:: Bianchi, Carlos A.
Abstract:: The number of endangered species is rapidly increasing while paucity of adequate information and resources delays establishment of conservation actions. The IUCN’s listing system is insufficient to determine conservation priorities and many species lack information even to be evaluated (i.e., “data deficient”). Here I proposed and tested the Rapid Endangered...
Resource Type:: Dissertation
Full Text:: DISSERTATION OF Carlos A. Bianchi for the degree of Doctor of Philosophy in Wildlife Science presented on

Community-based sea turtle conservation in Baja, Mexico : integrating science and culture

Creator:: Bird, Kristin E.
Abstract:: This thesis discusses both theoretical and practical considerations inherent in conducting community-based research within a case study of sea turtle conservation in Baja California, Mexico. A brief background, including the general ecology, status and distribution of sea turtles of the Baja peninsula is presented, with an overview of the current...
Resource Type:: Masters Thesis
Full Text:: Carlos, Baja California Sur, particularly Pam Kyistra and Rodrigo Rangel, as well as the WiLDCOAST

Delineating pattern and process in tropical lowland : mealy parrot migration dynamics as a guide for regional conservation planning

Creator:: Bjork, Robin D.
Abstract:: Most reserves fail to capture the habitat heterogeneity necessary to maintain viable populations of wide-ranging species. Methods to determine defensible dimensions of reserves and reserve networks are needed. The primary goal of this study was to develop such methods for lowland tropical forests by examining habitat- and spatial-use patterns of...
Resource Type:: Dissertation
Full Text:: of San Carlos, Guatemala. For permits to work in Cerro Cahui Biotope, I thank the Center for

Foraging behavior of the Pacific harbor seal (Phoca vitulina richardii) in the Pacific Northwest and potential impacts of coastal hypoxia on foraging efficiency

Creator:: Steingass, Sheanna M.
Abstract:: In the last decade, the California Current Large Marine Ecosystem has experienced a trend of increased severity of upwelling-driven coastal hypoxia. This thesis strove to examine the potential upper trophic level impacts of moderate and severe hypoxia in the CCLME. Initially I conducted a literature review of Pacific harbor seal...
Resource Type:: Masters Thesis
Full Text:: been demonstrated in systems described by Monteiro et al. (2008), Stramma et al. (2010) and Zhang et

Body Condition and Hormone Assessment of Eastern North Pacific Gray Whales (Eschrichtius robustus) and Associations with Ambient Noise

Creator:: Lemos, Leila S.
Abstract:: Anthropogenic activities have posed many threats to the oceans and marine life. Understanding how individuals are affected and physiologically respond to these threats is crucial and allows for management and conservation applications. I evaluated the overall health condition of a subpopulation of gray whales (Eschrichtius robustus) along the Oregon coast,...
Resource Type:: Dissertation
Full Text:: DEDICATION I dedicate this work to my father Antonio Carlos for his companionship and for teaching me

Effects of Aquatic Resource Subsidies on the Ecology of Terrestrial Top Predators

Creator:: Eriksson, Charlotte E.
Abstract:: Energetic resources transferred between distinct habitats or ecosystems, referred to as allochthonous resources, can greatly subsidize consumers in the recipient habitat, and thus influence food web structure and dynamics. Such subsidies may allow the growth of the consumer population to be decoupled from in situ productivity with effects on consumer...
Resource Type:: Dissertation
Full Text:: collections and jaguar prey identification. Joel S. Ruprecht contributed to jaguar density analysis. Carlos

Spatial Variation in Ecosystem Carbon Stocks and Emissions Resulting from Land-use Conversion: Two Studies in Mangrove Forests of the Dominican Republic

Creator:: Giovannoni, Leila R.
Abstract:: Mangrove forests store more organic carbon across ecosystem carbon pools than most other coastal and forested ecosystems, and are subject to high global rates of deforestation. For these reasons, they are recognized as prime candidates for inclusion in climate change mitigation strategies. However, the ecological drivers of regional and micro-scale...
Resource Type:: Masters Thesis
Full Text:: Pedro Martinez, Jesus Galan José, Carlos Maria Gonzalez Montesino, Deiby Isael Boyer Medina, Nicolas

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:: George Lienkaemper of the USGS provided technical and planning advice. I thank Renee Bellinger, Carlos

Worldwide phylogeography and local population structure of the rough-toothed dolphin (Steno bredanensis)

Creator:: Albertson, G. Renee
Abstract:: Several dolphin species have global distributions. The extent of their radiation and limits to gene flow are presumably a product of oceanographic features both recent and historical, behavioral specializations and social organization. Rough-toothed dolphins (Steno bredanensis) are globally distributed in tropical and subtropical waters and are generally found in depths...
Resource Type:: Dissertation
Full Text:: coast of Costa Rica and Mexico as well as in the main Hawaiian Islands and French Polynesia in the

Applications of slow-moving autonomous platforms for passive acoustic monitoring and density estimation of marine mammals

Creator:: Fregosi, Selene
Abstract:: Advances in mobile autonomous vehicles for oceanographic sensing provide new opportunities for passive acoustic monitoring of marine mammals. Acoustically equipped mobile autonomous platforms, including gliders, deep-water profiling floats, and drifting surface buoys can survey for a variety of marine mammal species over intermediate spatiotemporal scales. Additionally, such mobile platforms may...
Resource Type:: Dissertation

ScholarsArchive@OSU

Rapid endangered species assessment : a novel approach to improve extinction risk assessments in poorly known species

Community-based sea turtle conservation in Baja, Mexico : integrating science and culture

Delineating pattern and process in tropical lowland : mealy parrot migration dynamics as a guide for regional conservation planning

Foraging behavior of the Pacific harbor seal (Phoca vitulina richardii) in the Pacific Northwest and potential impacts of coastal hypoxia on foraging efficiency

Body Condition and Hormone Assessment of Eastern North Pacific Gray Whales (Eschrichtius robustus) and Associations with Ambient Noise

Effects of Aquatic Resource Subsidies on the Ecology of Terrestrial Top Predators

Spatial Variation in Ecosystem Carbon Stocks and Emissions Resulting from Land-use Conversion: Two Studies in Mangrove Forests of the Dominican Republic

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

Worldwide phylogeography and local population structure of the rough-toothed dolphin (Steno bredanensis)

Applications of slow-moving autonomous platforms for passive acoustic monitoring and density estimation of marine mammals

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