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Filtering by: Creator Hirsch, Lauren A. Academic Affiliation Entomology Degree Name Master of Science (M.S.)

A quantitative survey of the fleas associated with the gray-tailed vole, Microtus canicaudus Miller

Creator:

Robbins, Richard George

Abstract:

A study of the population dynamics and ecology of the fleas associated with the gray-tailed vole, Microtus canicaudus Miller, was conducted on three sites surrounding the city of Corvallis, Oregon. Over a period of 12 months, 22,641 adult and larval fleas representing three families and eight species were recovered from...

Resource Type:

Masters Thesis

Full Text:

A quantitative survey of the fleas associated with the
Drift, wood, and grazing cattle : macroinvertebrates in managed streams

Creator:

Reed, T. L.

Abstract:

The importance of active-entry drift at a community-scale was evaluated by testing whether the placement of wood in streams affected the abundance of Baetis spp. mayflies in drift. Baetis were chosen because they use drift as a behavioral strategy and are important in salmonid diets. The density of woody debris...

Resource Type:

Masters Thesis

Full Text:

). 24 Trout Creek In collaboration with a fish-movement study conducted by Christine Hirsch
Arthropod community structure in regenerating Douglas-fir and red alder forests : influences of geography, tree diversity and density

Creator:

Schaerer, Brett L.

Abstract:

The structuring of canopy arthropod communities was reviewed and investigated in relation to tree species diversity and its component factors, interspersion of different species and density of each tree species. Fifteen treatments of Douglas-fir (Pseudotsuga menziesii) and red alder (Alnus rubra) (various densities and proportions of each) were randomly assigned...

Resource Type:

Masters Thesis

Full Text:

treatments. Many arthropod taxa and functional groups residing on a single tree species had significantly