Index Catalog // ScholarsArchive@OSU

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

Biogeographic and experimental evidence for local scale dispersal limitation in central Panamanian forest birds

Creator:: Moore, Randall Phillips, 1965-
Abstract:: I examined the avian biogeography of the islands of Lago Gatun, Panama, in an effort to better understand the effects of forest fragmentation in this biodiverse region, and specifically to understand the importance of fragment isolation and the mechanism behind its effects on tropical bird distribution. I combined exhaustive surveys...
Resource Type:: Dissertation
Full Text:: . Comments from John Hayes and Cliff Pereira greatly improved the manuscript. Maria Demir, Jessie

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:: , K. Richardson, R. Scachetti-Pereira, R. E. Schapire, J. Soberón, S. Williams, M. S. Wisz, and N. E

Bacteriophages Significantly Reduce Mortality of Larval Pacific Oysters Crassostrea gigas from Infection by the Pathogenic Bacterium Vibrio coralliilyticus RE98

Creator:: Madison, David B.
Abstract:: Vibrio coralliilyticus (Vcor) is a bacterial pathogen that is well adapted to shellfish hatcheries and is very pathogenic to the larvae of the Pacific oyster Crassostrea gigas. Vcor has been associated with several large scale larval mortality events in the Pacific Northwest that interrupt the supply of seed oysters available...
Resource Type:: Masters Thesis
Full Text:: ., 2014; Le, et al., 2018; Nakai and Park, 2002; Oliveira, et al., 2012; Patil, et al., 2014; Pereira

Tempo and Mode of Lineage and Morphological Diversification in a Hyperdiverse Freshwater Fish Radiation (Teleostei : Characiformes)

Creator:: Burns, Michael D.
Abstract:: Characiform fishes form one of the most diverse freshwater fish clades in the world. Comprising more than 2000 species and distributed primarily in South America and Africa, characiforms vary dramatically in their ecomorphology. However, the evolutionary processes responsible for the immense ecomorphological diversity remains unknown. Recently, a study postulated that...
Resource Type:: Dissertation

Human Alteration of a Neotropical Landscape Drives Long-term Changes in its Forest Bird Communities

Creator:: Curtis, Jenna R.
Abstract:: Human alteration of natural landscapes leads to biodiversity loss, often from a combination of area effects and fragmentation effects. Smaller habitat patches support fewer species than large ones and incur additional consequences from isolation. Efforts to preempt biodiversity loss from insular habitat fragments are complicated by individualistic species responses and...
Resource Type:: Dissertation

Tempo and Mode of Diversification in the Neotropical Fish Superfamily Anostomoidea (Ostariophysi: Characiformes)

Creator:: Frable, Benjamin W.
Abstract:: Neotropical characiform fishes form one of the most diverse freshwater ichthyofauna in the world. Knowledge of evolutionary processes that generated and maintain the immense characiform lineage and morphological diversity is still poorly understood. When did characiform lineages diversify? How have major geological and environmental changes affected diversification? Why are some...
Resource Type:: Masters Thesis
Full Text:: !abundant!Neotropical!fishes!by!biomass!(prochildontids,!Flecker,!1996).! Taxa!range!from!Costa!Rica!to

Growth and reproductions of Oreochromis niloticus (L.) in tropical aquatic microcosms at fluctuating temperature regimes

Creator:: Rwangano, Félicien
Resource Type:: Dissertation
Full Text:: Robert L. Jarvis. I am indebted to Drs. Cliff Pereira, Robert Anthony, and John Van Sickle for their

Central control of locomotor activity in juvenile salmonids : the role of corticotropin releasing hormone in the brain

Creator:: Clements, Shaun
Abstract:: The present study investigated the neurocrine and neuroendocrine control of locomotor activity, habitat choice, social behavior, and migratory behavior in juvenile chinook salmon (Oncorhynchus tshawytscha). This was achieved by the manipulation of three neurotransmitter systems; serotonin (5-HT), dopamine (DA), y-amino-n-butyric acid (GABA) and the neuropeptide corticotropin-releasing hormone (CRH). Chemicals were...
Resource Type:: Dissertation

News & Views, 2005

Creator:: Hall, Jim
Resource Type:: Other
Full Text:: the world of plant- herbivore interactions at La Selva Biological Field Station in Costa Rica. During

ScholarsArchive@OSU

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

Biogeographic and experimental evidence for local scale dispersal limitation in central Panamanian forest birds

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

Bacteriophages Significantly Reduce Mortality of Larval Pacific Oysters Crassostrea gigas from Infection by the Pathogenic Bacterium Vibrio coralliilyticus RE98

Tempo and Mode of Lineage and Morphological Diversification in a Hyperdiverse Freshwater Fish Radiation (Teleostei : Characiformes)

Human Alteration of a Neotropical Landscape Drives Long-term Changes in its Forest Bird Communities

Tempo and Mode of Diversification in the Neotropical Fish Superfamily Anostomoidea (Ostariophysi: Characiformes)

Growth and reproductions of Oreochromis niloticus (L.) in tropical aquatic microcosms at fluctuating temperature regimes

Central control of locomotor activity in juvenile salmonids : the role of corticotropin releasing hormone in the brain

News & Views, 2005

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