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Filtering by: Creator Flowers, Micahel Darrell, 1971- Resource Type Dissertation Rights Statement Copyright Not Evaluated

Effects of temperature and other abiotic and biotic factors on development and survival of the immature stages of the alfalfa leafcutting bee, Megachile pacifica (Panzer) (=rotundata (F.)) (Hymenoptera:Megachilidae)

Creator:

Undurraga O., Jaime M.

Abstract:

Larval mortality of leafcutting bee, Megachile pacifica (Panzer) (= rotundata (F.)), is high, usually exceeding 50%. Parasites and predators are not a limiting factor in the survival of the progeny. The disease chalk brood has been an important mortality factor since 1974. Inadequate food supply, pollen and nectar, may affect...

Resource Type:

Dissertation

Full Text:

Dority, William Panike, Darrell Panike, George Schiemer, Robert Ure and Van Ure, of Malheur County, for
Student performance in lower division collegiate general biology programs in selected community colleges and four-year institutions in Oregon

Creator:

Tolman, Richard Robins

Abstract:

It was the intent of this investigation to compare the performance of community college students to four-year institutional students, both of whom were enrolled in a college general biology program (GS 101, 102, 103) during the 1967-68 academic year. During the week of May 27, 1968 measurements were taken of...

Resource Type:

Dissertation

Full Text:

colleges will organize between 1967 and 1971. This growth indicates that eventually two-year college