Open Access. Powered by Scholars. Published by Universities.®
- Institution
Articles 1 - 2 of 2
Full-Text Articles in Life Sciences
The Relative Abundance And Diversity Of Parasitoids Of The Browntail Moth (Euproctis Chrysorrhoea L.) And Factors That Influence Their Population Dynamics, Karla S. Boyd
Electronic Theses and Dissertations
The browntail moth (Euproctis chrysorrhea) is an invasive forest pest that has been present in the Northeast since it was first introduced from Europe in 1897. Originally, its range expanded very rapidly until it reached its peak invasion of 150,000 km2, which included most of New England and parts of Southern Canada and Long Island, NY, in 1915. After this point, its range collapsed until only relic populations remained on islands in the Casco Bay Region of Maine and outer Cape Cod in Massachusetts. In 2016, a large population outbreak occurred that expanded its range into …
Competition And Community Interactions Of Two Generalist Herbivores, Elizabeth Ellen Barnes
Competition And Community Interactions Of Two Generalist Herbivores, Elizabeth Ellen Barnes
Electronic Theses and Dissertations
Competition can have far-reaching consequences for the fitness and distribution of many organisms. In herbivorous insects, competition mediated by a third organism is more common than direct competition and has a strong effect on insect communities; yet most research on indirect competition among herbivores focuses on dietary specialists, and those studies that do include generalists tend to rear them on agricultural crops. My project examines species interactions at three levels: intraspecific competition (within species), interspecific competition (between species), and ecosystem engineering effects at the community level. I studied competition and community interactions of two temporally-separated species of herbivorous insects, western …