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Terrestrial and Aquatic Ecology Commons™

Open Access. Powered by Scholars. Published by Universities.®

2011

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Articles 121 - 122 of 122

Full-Text Articles in Terrestrial and Aquatic Ecology

Physiology And Biochemistry Of The Tropical Seagrass Thalassia Testudinum In Response To Hypersalinity Stress And Labyrinthula Sp. Infection, Stacey Marie Trevathan-Tackett Jan 2011

Physiology And Biochemistry Of The Tropical Seagrass Thalassia Testudinum In Response To Hypersalinity Stress And Labyrinthula Sp. Infection, Stacey Marie Trevathan-Tackett

UNF Graduate Theses and Dissertations

Seagrass meadows are essential to coastal ecosystems and have experienced declines in abundance due to a series of environmental stressors including elevated salinity and incidence of disease caused by the pathogen Labyrinthula sp. This thesis evaluated the dynamics between T. testudinum and Labyrinthula concerning the impacts of short term elevated salinity stress on the early stages of infection in Thalassia testudinum (Chapter 2) as well as the presence of anti-labyrinthulid secondary metabolites produced by the tropical seagrass (Chapter 3). The results showed that short term exposure to hypersalinity alters some cellular processes but does not necessarily lead to an immediate …

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Can Resource-Use Traits Predict Native Vs. Exotic Plant Success In Carbon Amended Soils?, Robert J. Steers, Jennifer L. Funk, Edith B. Allen Jan 2011

Can Resource-Use Traits Predict Native Vs. Exotic Plant Success In Carbon Amended Soils?, Robert J. Steers, Jennifer L. Funk, Edith B. Allen

Biology, Chemistry, and Environmental Sciences Faculty Articles and Research

Productivity in desert ecosystems is primarily limited by water followed by nitrogen availability. In the deserts of southern California, nitrogen additions have increased invasive annual plant abundance. Similar findings from other ecosystems have led to a general acceptance that invasive plants, especially annual grasses, are nitrophilous. Consequently, reductions of soil nitrogen via carbon amendments have been conducted by many researchers in a variety of ecosystems in order to disproportionately lower invasive species abundance, but with mixed success. Recent studies suggest that resource-use traits may predict the efficacy of such resource manipulations; however, this theory remains largely untested. We report findings …

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