Index Catalog // ScholarsArchive@OSU

Start Over

Filtering by: Creator Dunham, James Tallus Committee Member Noakes, David

An Integrated Approach to Gauge the Effects of Global Climate Change on Headwater Stream Ecosystems

Creator:

Bury, Gwendolynn W.

Abstract:

Climate change is predicted to affect ecosystems, including systems already stressed by human impacts. One ecosystem that is already highly impacted by human land use is the cold headwater stream system of the Pacific Northwest. One method of assessing the function of an ecosystem is by using an indicator species....

Resource Type:

Dissertation

Full Text:

Corn 1988, Torgersen et al. 1999, Ashton et al. 2006, Dunham et al. 2007). Global warming adds
The evolutionary stability of partial migration

Creator:

Ohms, Haley A.

Abstract:

Natural selection, in its most basic form, is described as a process in which traitsincrease or decrease in frequency depending on their fitness, and only the trait withthe highest fitness will remain in the population. Yet, populations rarely have asingle `optimal' trait. The way natural selection maintains this observed variationwithin...

Resource Type:

Dissertation
The physiology ecology and run diversity of adult Pacific lamprey, Entosphenus tridentatus, during the freshwater spawning migration

Creator:

Clemens, Benjamin J.

Abstract:

Pacific lamprey, Entosphenus tridentatus, have shown recent and rapid declines in abundance. These anadromous fish return to streams where they mature, spawn and die. It has been inferred that Pacific lamprey enter freshwater and reside for ~ 1 year before spawning. This long exposure to the freshwater environment may affect...

Resource Type:

Dissertation

Full Text:

, Stan Gregory, Jason Dunham, Jim Peterson, Hiram Li, Allison Evans, and Jane Toliver