Suzanne V. Olyarnik

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Coastal ecosystems and the services they provide are adversely affected by a wide variety of human activities. In particular, seagrass meadows are negatively affected by impacts accruing from the billion or more people who live within 50 km of them. Seagrass meadows provide important ecosystem services, including an estimated $1.9 trillion per year in the(More)
Although human-mediated extinctions disproportionately affect higher trophic levels, the ecosystem consequences of declining diversity are best known for plants and herbivores. We combined field surveys and experimental manipulations to examine the consequences of changing predator diversity for trophic cascades in kelp forests. In field surveys we found(More)
What makes a community invasible? For over a century ecologists have sought to understand the relative importance of biotic and abiotic factors that determine community composition. The fact that we are still exploring this topic today hints at both its importance and complexity. As the impacts from harmful non-native species accumulate, it has become(More)
Title of Thesis: STREAM MACROINVERTEBRATE COMMUNITIES IN URBANIZING WATERSHEDS IN MARYLAND, USA Aaron A. Moore, Master of Science, 2003 Thesis directed by: Professor Margaret A. Palmer Department of Entomology The conversion of agricultural landscapes into residential developments is a prominent form of land use change in Maryland. Macroinvertebrates were(More)
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