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Full-Text Articles in Biodiversity
Diversity, Taxonomy, And Systematics Of Chanterelles And Allies (Cantharellales), Rachel A. Swenie
Diversity, Taxonomy, And Systematics Of Chanterelles And Allies (Cantharellales), Rachel A. Swenie
Doctoral Dissertations
The order Cantharellales is a lineage of approximately 1,000 fungal species that is sister to the rest of the mushroom-forming fungi (Agaricomycetes). Cantharellales species display a diverse array of morphologies and nutritional modes, from corticioid (crust-like) saprobes that decay dead wood, to biotrophic species that exist as parasites of plants, as well as mycorrhizal mushrooms that form mutualisms with common forest trees. However, the evolutionary relationships among these lineages are poorly known. Within the Cantharellales, I revised the taxonomy of the genus Hydnum (hedgehog mushrooms) in eastern North America by integrating morphological, ecological, and molecular phylogenetic data from modern and …
Systematics And Biogeography Of The Cortinarius Violaceus Group And Sequestrate Evolution In Cortinarius (Agaricales), Emma Harrower
Systematics And Biogeography Of The Cortinarius Violaceus Group And Sequestrate Evolution In Cortinarius (Agaricales), Emma Harrower
Doctoral Dissertations
Phylogenetics is a powerful tool used for illuminating the diversity of life on Earth, their evolution and their ecology. I created a multi-gene phylogenetic tree of Cortinarius section Cortinarius and uncovered five previously overlooked species, increasing the number of species in the section from seven to twelve. All members of the clade possess both cheilocystidia and pleurocystidia and possess a pigment known as (R)-39,49-dihydroxybphenylalanine. Ancestral state reconstruction estimated that the ancestral host was most likely an angiosperm, switching hosts when encountering novel host species in new lands, and only C. violaceus associating with the Pinaceae in North America. Biogeographic analysis …
Conservation Planning In A Changing World, Austin Walker Milt
Conservation Planning In A Changing World, Austin Walker Milt
Doctoral Dissertations
As a science and practice dedicated to preventing, stopping, and reversing negative effects on nature, conservation is constantly faced with new challenges. Combine this fact with the rise of large, freely available datasets and computational power, and the result is a need to advance the methods and conceptual approach to conservation planning. In my dissertation I present novel methods and address research questions that aim to keep conservation science and practice relevant and effective in a changing world. This picture of continual change is illustrated in Chapter 1, in which I explore how the ongoing collection of observations of rare …