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Full-Text Articles in Ecology and Evolutionary Biology

Marine Fungi Of U.S. Gulf Of Mexico Barrier Island Beaches: Biodiversity And Sampling Strategy, Allison Kathleen Walker Dec 2012

Marine Fungi Of U.S. Gulf Of Mexico Barrier Island Beaches: Biodiversity And Sampling Strategy, Allison Kathleen Walker

Dissertations

Marine fungi are an important but often overlooked component of marine ecosystems. Primarily saprotrophic, they are vital to coastal nutrient cycling processes and food webs. However, basic marine fungal distribution data are lacking in many parts of the world, as is knowledge of the sampling intensity required to characterize the biodiversity of these communities. The roles of substrate, season and latitude in shaping intertidal ascomycete community structure were examined for the U.S. Gulf of Mexico, and the role of sampling frequency on species richness estimates was also addressed. Best sampling practices were developed and 750 collections of beach detritus, sand …


Devil In A Hula Skirt: Comparative Conservation Efforts Between The United States And Australia Using Two Endemic Species As Case Studies, Sarah Catherine Kuchinsky May 2012

Devil In A Hula Skirt: Comparative Conservation Efforts Between The United States And Australia Using Two Endemic Species As Case Studies, Sarah Catherine Kuchinsky

Undergraduate Honors Thesis Collection

There is a biodiversity crisis in our midst. An abundance of technology and innovation in the last 200 years has revamped our world but at the cost of pushing many species to extinction. Since the passing of the Endangered Species Act by Congress in 1973, more than 100 species in the United States have disappeared (Wilson 2006). The International Union for the Conservation of Nature (IUCN) stats that "19,265 species out of the 59,507 so far assessed as threatened with extinction," (IUCN 2011). Extinction is the result of a combination of factors caused by human environmental disturbance. Disturbances in the …


Systematics Of Leptopelis (Anura: Arthroleptidae) From The Itombwe Plateau, Eastern Democratic Republic Of The Congo, Francisco Portillo Jan 2012

Systematics Of Leptopelis (Anura: Arthroleptidae) From The Itombwe Plateau, Eastern Democratic Republic Of The Congo, Francisco Portillo

Open Access Theses & Dissertations

Leptopelis, a genus of Central African treefrogs, includes 51 species that live in tropical forests and savannas. Currently, only two species of Leptopelis are known from the poorly explored Itombwe Plateau in eastern Democratic Republic of the Congo (DRC). Itombwe is renowned among conservationists for its rich and endemic amphibian fauna, including: Xenopus itombwensis, Chrysobatrachus cupreonitens, Laurentophryne parkeri, Hyperolius leleupi and at least three species of Arthroleptis. Evolutionary relationships of Itombwe Leptopelis were examined by sequencing two mitochondrial genes (16S: 557 bp [base pairs], cyt b: 620 bp) and one nuclear gene (RAG1: 761 bp). Results recovered strong support for …