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Articles 1 - 6 of 6
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Habitat Use And Seasonal Activity Of Selected Snakes On John F. Kenned, Karen Dyer
Habitat Use And Seasonal Activity Of Selected Snakes On John F. Kenned, Karen Dyer
Electronic Theses and Dissertations
An intensive, replicated monthly sampling of snake communities inhabiting four habitat types was conducted at John F. Kennedy Space Center, Brevard County, Florida from November 2002 through October 2003. Thirteen species (580 individuals plus 74 recaptures) plus one hybrid were captured. The three most commonly captured species, Coluber constrictor, Thamnophis sirtalis, and Thamnophis sauritus, combined made up 85% of the sample. These three species were active during every month of the year, but showed modal activity patterns typical of Temperate Zone snakes. Monthly snake captures were correlated with monthly captures of potential prey species and with mean monthly temperature. Species …
The Ecology Of Drift Algae In The Indian River Lagoon, Florida, Julie Lynnae Liss
The Ecology Of Drift Algae In The Indian River Lagoon, Florida, Julie Lynnae Liss
Electronic Theses and Dissertations
To gain an understanding of the ecology of drift algae in the Indian River Lagoon system along the east coast of central Florida, four questions were addressed: 1) What is the composition and rate of accumulation of drift? 2) How much movement and turnover occurs within drift accumulations? 3) Do growth rates differ for drift versus attached algae? 4) Is there a difference in photosynthetic performance in drift versus attached algal species? Manipulative field and laboratory experiments were conducted to address these questions with the green macroalga Codium decorticatum and the red macroalga Gracilaria tikvahiae. Changes in pigment concentration and …
Recruitment And Restoration Of The Oyster Crassostrea Virginica In Areas With Intense Boating Activity In Mosquito Lagoon, Florida, Lisa Michele Wall
Recruitment And Restoration Of The Oyster Crassostrea Virginica In Areas With Intense Boating Activity In Mosquito Lagoon, Florida, Lisa Michele Wall
Electronic Theses and Dissertations
Productivity, diversity and survival of estuaries are threatened by explosive coastal population growth and associated recreational activities. One major area of recreational growth has been the number of small pleasure craft motoring in shallow waters at high speeds. On the east coast of Central Florida in the Indian River Lagoon system, intense boating activity occurs year-round and intertidal reefs of the eastern oyster Crassostrea virginica with dead margins (piles of disarticulated shells) on their seaward edges are commonly found adjacent to major boating channels. The cause(s) of the dead margins is unclear. However, the disarticulated shells may be reducing reef …
Genetic Analysis Of Rhoa Signaling During Epithelial Morphogenesis In Drosophila, Amanda Fitch Leppert
Genetic Analysis Of Rhoa Signaling During Epithelial Morphogenesis In Drosophila, Amanda Fitch Leppert
Electronic Theses and Dissertations
Epithelial morphogenesis is contingent upon cell shape changes. Cell shape changes are the driving force for the metamorphosis of the adult Drosophila leg from the leg imaginal disc precursor. Genetic analysis has identified several Drosophila genes involved in regulating cell shape changes during leg disc morphogenesis. These include members of the RhoA signaling pathway and the product of the Stubble-stubbloid (Sb-sbd) locus, a transmembrane serine protease. Mutations in the Sb-sbd gene interact genetically with the members of the RhoA signaling pathway, however the nature of the relationship between Sb-sbd serine protease activity and RhoA signaling is not understood. To identify …
Land Use Effects On Lake Water Quality In Central Florida, Jonathan Seiler
Land Use Effects On Lake Water Quality In Central Florida, Jonathan Seiler
Electronic Theses and Dissertations
Land use affects the water quality of lakes. Different land use types yield different effects due to varying amounts and constituents of runoff. In this study, the effects of surrounding land use on the water quality of 50 lakes in Seminole County, Florida was assessed. Using GIS, I placed buffers of 100 and 500 m around each lake. The percentages of land use type were calculated within these buffers for 1990 and 1995. An ordination of lakes was done using Canonical Correspondence Analysis (CCA) to determine if the surrounding land use patterns were adequate to describe the trophic status of …
Interactions Between The Nudibranch Okenia Zoobotryon And Its Bryozoan, Nicole Robinson
Interactions Between The Nudibranch Okenia Zoobotryon And Its Bryozoan, Nicole Robinson
Electronic Theses and Dissertations
In the Indian River Lagoon, the nudibranch Okenia zoobotryon and its egg masses are found attached to the bryozoan Zoobotryon verticillatum throughout the year. Okenia zoobotryon is thought to live, feed, and reproduce exclusively on Z. verticillatum, which would make this a very specialized predator-prey interaction. The primary goal of my study was to document certain aspects of the ecological and chemical relationships between Z. verticillatum and O. zoobotryon. Specifically, I wanted to understand the cues used by the nudibranch to locate and remain on Z. verticillatum. Population surveys on Z. verticillatum, as well as other potential hosts, were performed. …