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Articles 1 - 4 of 4
Full-Text Articles in Other Ecology and Evolutionary Biology
Non-Consumptive Effects Of Predators In Coral Reef Communities And The Indirect Consequences Of Marine Protected Areas, Laura Catano
Non-Consumptive Effects Of Predators In Coral Reef Communities And The Indirect Consequences Of Marine Protected Areas, Laura Catano
FIU Electronic Theses and Dissertations
Predators exert strong direct and indirect effects on ecological communities by intimidating their prey. Non-consumptive effects (NCEs) of predators are important features of many ecosystems and have changed the way we understand predator-prey interactions, but are not well understood in some systems. For my dissertation research I combined a variety of approaches to examine the effect of predation risk on herbivore foraging and reproductive behaviors in a coral reef ecosystem. In the first part of my dissertation, I investigated how diet and territoriality of herbivorous fish varied across multiple reefs with different levels of predator biomass in the Florida Keys …
Salinity Distribution Of Microplankton In The San Francisco Estuary, Carrie Ann Sharitt, Lindsay Sullivan, Wim Kimmerer
Salinity Distribution Of Microplankton In The San Francisco Estuary, Carrie Ann Sharitt, Lindsay Sullivan, Wim Kimmerer
STAR Program Research Presentations
Microplankton are a diverse group of planktonic organisms ranging from 0.02 to 0.2 millimeters. Since the group is defined solely by size, it spans numerous taxonomic groups, including both heterotrophs and autotrophs. Microplankton are abundant in all aquatic ecosystems and are important prey for many organisms, including bivalves, crustaceans, and fish. The San Francisco Bay is truly an estuary as saltwater enters the estuary under the Golden Gate Bridge and freshwater flows in from the Sacramento and San Joaquin Rivers. Thus, there is a gradient of salinity from freshwater (0) in the rivers to saltwater by the Golden Gate Bridge …
Factors In Long-Term Algal Composition Of Cayman Reefs: Determining Effects Of Natural Disturbance And Grazer Pressures, Patrick J. Doughty
Factors In Long-Term Algal Composition Of Cayman Reefs: Determining Effects Of Natural Disturbance And Grazer Pressures, Patrick J. Doughty
Lawrence University Honors Projects
Abstract. Current research shows a worldwide shift in the population dynamics of reefs attributed to increasing human disturbance. With increasing nutrient additions, competitive populations of turf and macroalgae bloom and dominate coral reefs leading to decreased health of the reef as a whole. Unfortunately, few studies have been done showing the long-term changes in algae composition on reefs. In order to find the significant factors in the long-term composition of algae on reefs, algae and fish abundance data were collected through the Lawrence University Marine Program and analyzed for this study. Algae were split into three functional groups: encrusting, turf …
Coral-Fish Dynamics And Interactions: A Case Study Of Grand Cayman, Eileen Shea Davis
Coral-Fish Dynamics And Interactions: A Case Study Of Grand Cayman, Eileen Shea Davis
Lawrence University Honors Projects
To better understand the ecological interactions of coral reefs, it is important to understand the mechanisms that control the distribution and abundance of reef-building corals as well as the mechanisms that control the diversity and abundance of the fish community that inhabits these reef habitats. The purpose of this study was to identify specific coral-fish interactions among the reefs of Grand Cayman in order to gain insight into the biological effects of fish on the assemblage of hard corals. Using data collected by the Lawrence University Marine Program (LUMP), a number of exploratory statistical analyses were run in order to …