Index Catalog // ScholarsArchive@OSU

The biology and behavior of the alkali bee Nomia melanderi Cockerell (Hymnoptera: Apoidea)

Creator:: Hackwell, Glenn Alfred
Abstract:: Nomia melanderi Cockerell is one of the most efficient pollinators of alfalfa in Eastern Oregon. Emergence begins in June, usually reaches its peak in early July, and may continue into early August. Male emergence precedes female emergence by four or five days. For the first few weeks of this time,...
Resource Type:: Dissertation
Full Text:: , hence the name alkali bee. The bee is one of the most efficient pollinators of alfalfa and is 2

Effects of method and timing of pollination and temperature on fruit development in red raspberry

Creator:: Bekey, Ronald S.
Resource Type:: Dissertation
Full Text:: -year period in 'Willamette' could be attributed 62.5 % to self-pollination, 22 % to bees, and 15.5

Mechanisms of orientation in the leaf-cutter bee Megachile rotundata (Fabricius)

Creator:: Osgood, Charles Edgar
Abstract:: The leaf- cutter bee Megachile rotundata (Fabricius) is an important alfalfa pollinator in western North America. This study was designed to provide information on methods of orientation used by M. rotundata in order to make recommendations regarding the parameters within which adult nesting populations may be relocated. Preliminary studies suggest...
Resource Type:: Dissertation
Full Text:: squares, circles, triangles, crosses, stars, I's and Y's. In these studies,bees were conditioned to a

The parasite Aspergillus flavus Link and other fungi of the biosphere of the alkali bee Nomia melanderi Ckll., in eastern Oregon and Washington

Creator:: Baker, Gerald Merritt
Abstract:: The pathogenicity of A. flavus on alkali bee larvae was studied using sample materials from three nesting sites of these soil inhabiting bees along the Oregon-Washington state line. Soil saprophytes of the biosphere of the alkali bee were also studied. Field observations and direction of soil cores from bee beds...
Resource Type:: Dissertation
Full Text:: saprophytes were isolated from: soil samples, the surface of adult alkali bees, pollen balls, and larval

Some factors that affect pollination and seed formation in alfalfa, Medicago sativa L

Creator:: Bradner, Norman Richard
Abstract:: The objectives of this study were (a) to measure the amount of cross-pollination caused by three bee species at 10, 20 and 40 rods distance from a foreign pollen source, (b) to measure the effects of bee species, planting pattern and season on broad sense heritability estimates for seed yield...
Resource Type:: Dissertation
Full Text:: of opinion is that bees are the primary pollinators of alfalfa. Aicher (1, p. 5) and Sladen (34, p

Plant-Pollinator Interactions in a Changing World: Cryptic Specialization, Pollinator Movement, and Landscape Genetics of Pollinator-Dependent Plants

Creator:: Gannon, Dustin G.
Abstract:: Plant-pollinator mutualisms are one of the most prevalent and economically important mutualisms in nature. Like many other ecological systems, plant-pollinator communities are threatened by anthropogenic activity, both directly (e.g., habitat conversion and fragmentation) and indirectly (e.g., climate change). While we are aware of many of the activities that adversely impact...
Resource Type:: Dissertation
Full Text:: generalist pollinator, Brosi and Briggs (2013) found that pollinators rewired but the quality of pollination

Environmental impacts on native bumble bee pollinators in an agricultural landscape of western Oregon

Creator:: Skyrm, Kimberly M.
Abstract:: Bumble bees provide vital pollination services in both native and agricultural landscapes. However, in recent years, bumble bee populations have experienced global population declines. The primary causes of these declines have been attributed to the environmental impacts of pathogens, pesticide use and habitat fragmentation. While research has examined the impacts...
Resource Type:: Dissertation
Full Text:: : __________________________________________ Sujaya Rao Bumble bees provide vital pollination services in both native and agricultural

Etiology and pathogenesis of chalkbrood in the alfalfa leafcutting bee, Megachile rotundata

Creator:: Vandenberg, J. D. (John Donald)
Abstract:: Chalkbrood is a mycosis of larvae of the alfalfa leafcutting bee, Megachile rotundata (Fabricius). It is a serious threat to alfalfa seed growers in western North America who use populations of this bee for pollination. Basic studies were conducted to determine the etiology of this disease and the course of...
Resource Type:: Dissertation
Full Text:: Ascosphaera. He discounted earlier reports of A. apis on solitary bees (Baker and Torchio 1968, Melville and

The role of bees in pollinating alfalfa in Southern Alberta

Creator:: Hobbs, Gordon Andrew
Resource Type:: Dissertation
Full Text:: great patience and skill in taking pictures of bees in action1 To ¡"r. R. W. Peake, Officer-in

Scent-making by nectar collecting honey bees

Creator:: Wetherwax, Peter B.
Abstract:: Honey bees mark artificial flowers with scents that advertise about the previous history of the flower to subsequent foragers. Unrewarding flowers are marked with a scent, after a single visit, that makes the flower less attractive to subsequent foragers. Previously rewarding flowers are initially less attractive than unvisited flowers but...
Resource Type:: Dissertation
Full Text:: applied by the bees in response to the presence of nectar and is not, as has been suggested by other

ScholarsArchive@OSU

The biology and behavior of the alkali bee Nomia melanderi Cockerell (Hymnoptera: Apoidea)

Effects of method and timing of pollination and temperature on fruit development in red raspberry

Mechanisms of orientation in the leaf-cutter bee Megachile rotundata (Fabricius)

The parasite Aspergillus flavus Link and other fungi of the biosphere of the alkali bee Nomia melanderi Ckll., in eastern Oregon and Washington

Some factors that affect pollination and seed formation in alfalfa, Medicago sativa L

Plant-Pollinator Interactions in a Changing World: Cryptic Specialization, Pollinator Movement, and Landscape Genetics of Pollinator-Dependent Plants

Environmental impacts on native bumble bee pollinators in an agricultural landscape of western Oregon

Etiology and pathogenesis of chalkbrood in the alfalfa leafcutting bee, Megachile rotundata

The role of bees in pollinating alfalfa in Southern Alberta

Scent-making by nectar collecting honey bees

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