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Full-Text Articles in Ecology and Evolutionary Biology
Evaluating The Effectiveness Of Road Passage Structures For Freshwater Turtles In Massachusetts, David J. Paulson
Evaluating The Effectiveness Of Road Passage Structures For Freshwater Turtles In Massachusetts, David J. Paulson
Masters Theses 1911 - February 2014
Roads are long linear features on the landscape that impact wildlife and their habitats. Among all forms of wildlife turtles are one of the most negatively affected by roads. Wildlife biologists and civil engineers have developed and implemented road design measures to mitigate the negative effects associated with roads. One common approach used to reduce road mortality and to facilitate movement of turtles is to construct a road mitigation system. There are currently 28 road mitigation systems for wildlife in Massachusetts, of which 14 were specifically built for turtles. We identified all known systems in Massachusetts and collected site and …
Spatial Variation And Tradeoffs In Species Interactions, Holly L. Bernardo
Spatial Variation And Tradeoffs In Species Interactions, Holly L. Bernardo
Masters Theses 1911 - February 2014
The geographic mosaic theory of coevolution predicts that spatial differences in species interactions result in a patchwork of evolutionary hot and cold spots across a landscape. We used horsenettle (Solanum carolinense L.), a perennial weed with a diverse insect community found in old fields and meadows, to examine local adaptation and resource-mediated selection. The goals of this study were to (1) determine the potential for a selection mosaic by identifying local adaptation through trait-interaction matching with herbivores, pollinations and plant competitors, and (2) determine the potential for indirect selection through resource allocation tradeoffs. The potential for local adaptation was determined …