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A survey of alfalfa pollinators and polination in the San Joaquin Valley of California with emphasis on establishment of the alkali bee

Creator:: Torchio, Philip F.
Abstract:: The study involves the establishment, management, and behavioral observations of Nomia melanderi Cockerell and Megachile rotundata (Fabricius) in California, a survey of native bees within western Fresno County, a determination of selfing and/or parthenocarpy in two fields of alfalfa, and observations on the honeybee as an alfalfa pollinator. The alkali...
Resource Type:: Masters Thesis
Full Text:: eastern America, the leafcutter bees, Megachile spp. , were the best pollinators in the Midwest, and

Effects of synthetic 9-oxodectrans-2-enoic acid on the foraging activities of honey bees (Apis mellifera L.)

Creator:: Youngs, Lorna C.
Abstract:: An experimental formulation of 9 -oxodec-trans-2-enoic acid, the major component of honey bee (Apis mellifera L.) queen pheromone, was tested for its effect on worker foraging behavior in the pollination of sweet cherries (Prunus avium L. ). The test formulation consisted of a solid beeswax cylinder impregnated with a measured...
Resource Type:: Masters Thesis
Full Text:: Treatments A, C, and D on May 9, 1976 52 11 Mean Number of Bees with Developed Ovaries Expressed as a

Foraging and nesting behavior of the leaf-cutter bee Megachile rotundata (Fabricius)

Creator:: Osgood, Charles Edgar
Abstract:: The study provides the details of the ethology of Megachile rotundata (Fabricius), and presents preliminary observations on its foraging and nesting behavior. Development from prepupae to adults proceeds most rapidly at 32 degrees C., and is retarded when held at lower and higher temperatures. Male behavior is distinct from that...
Resource Type:: Masters Thesis
Full Text:: and return of bees to given leaf sources. The construction of the cell cup is detailed as to leaf

Studies on Heterostylum robustum (Osten Sacken) (Diptera : Bombyliidae), a parasite of Nomia melanderi

Creator:: Eppley, Richard Keith
Abstract:: Heterostylum robustum (Osten Sacken) is the principal parasite of the alkali bee, Nomia melanderi Ckll., one of the most efficient pollinators of alfalfa in the western United States. The purpose of the study was to determine the incidence of parasitism and to investigate the biology of H. robustum. The fly...
Resource Type:: Masters Thesis
Full Text:: Oregon, , Wash- ington, Idaho, Utah, Wyoming and California. Large numbers of these bees in the

Characterization of alkali bee nesting sites

Creator:: Wipper, Wallace John
Resource Type:: Masters Thesis
Full Text:: honey bee trips only one or two per cent. Certain leaf-cutter bees are also efficient pollinators

Diversity, Generalization, and Specialization in Plant-Pollinator Networks of Montane Meadows, Western Cascades, Oregon

Creator:: Helderop, Edward
Abstract:: Despite the importance of plant-pollinator interactions for ecological communities, few long-term observational studies have been conducted of plant-pollinator networks. Using four years of plant-pollinator interaction data from 18 meadows in the Willamette National Forest, Oregon, this thesis examined how meadow size, the amount of nearby meadow habitat, weather, degree days,...
Resource Type:: Masters Thesis
Full Text:: , and Specialization in Plant-Pollinator Networks of Montane Meadows, Western Cascades, Oregon

The influence of pollinators on the maintenance of mixed mating in a population of the blue columbine, Aquilegia coerulea (Ranunculaceae)

Creator:: Sweet, Heather R.
Abstract:: Pollination ecology may play an important role in the maintenance of selfing in populations of self-compatible hermaphroditic plants where both selfing and outcrossing occur (mixed mating). Behavior and abundance of pollinators can influence the two major modes of selfing; autogamy (selfing within a flower) and geitonogamy (selfing between flowers on...
Resource Type:: Masters Thesis
Full Text:: negative and non-adaptive consequence of pollinators visiting multiple flowers per plant. Pollinator

Pollinator-Focused Solar: Observations of Plant-Pollinator Interactions in the Agrivoltaic Understory

Creator:: Graham, Maggie
Abstract:: Habitat for pollinating insects is declining, which is a concern for agricultural communities that rely on pollination services. Meanwhile, solar energy development is increasing as communities seek to source energy renewably. Land under solar panels is traditionally unused, so some communities are planting pollinator habitat under solar panel canopies to...
Resource Type:: Masters Thesis
Full Text:: , pollinators in full sun were dominated by mason bees (Osmia) and beetles (Coleoptera). Pollinators in

Impacts of Range Management Decisions on Native Pollinators: Innovative Grazing Practices and Riparian Restoration

Creator:: Mitchell, Scott R.
Abstract:: Animal pollination is critical to plant reproduction in agricultural and wildland ecosystems. Much of the production of seeds and fruits in natural areas, which underlie many food webs, depends on pollination services by insects. The taxon responsible for delivering the bulk of these services in most temperate systems is bees....
Resource Type:: Masters Thesis
Full Text:: and pollinators (Kimoto et al. 2012a, b; DeBano et al. 2016). In Oregon, native bees have been

Effects of pollen collected by honey bees from pollination dependent agricultural cropping systems on honey bee nutrition

Creator:: Topitzhofer, Ellen
Abstract:: Managed honey bee (Apis mellifera L.) colonies are important pollinators of many cultivated crops. Honey bee colony declines averaging 30% annually in the United States for the past 7 years have caused significant concern and hence have been a topic of intensive investigation. These declines are reportedly due to multiple...
Resource Type:: Masters Thesis
Full Text:: forage habitat for honey bees and other pollinators in the U.S. has been a concern for many years

ScholarsArchive@OSU

A survey of alfalfa pollinators and polination in the San Joaquin Valley of California with emphasis on establishment of the alkali bee

Effects of synthetic 9-oxodectrans-2-enoic acid on the foraging activities of honey bees (Apis mellifera L.)

Foraging and nesting behavior of the leaf-cutter bee Megachile rotundata (Fabricius)

Studies on Heterostylum robustum (Osten Sacken) (Diptera : Bombyliidae), a parasite of Nomia melanderi

Characterization of alkali bee nesting sites

Diversity, Generalization, and Specialization in Plant-Pollinator Networks of Montane Meadows, Western Cascades, Oregon

The influence of pollinators on the maintenance of mixed mating in a population of the blue columbine, Aquilegia coerulea (Ranunculaceae)

Pollinator-Focused Solar: Observations of Plant-Pollinator Interactions in the Agrivoltaic Understory

Impacts of Range Management Decisions on Native Pollinators: Innovative Grazing Practices and Riparian Restoration

Effects of pollen collected by honey bees from pollination dependent agricultural cropping systems on honey bee nutrition

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