The Bumble Bees of the Kashmir Himalaya (Hymenoptera: Apidae, Bobini) PDF Download

Author: Paul H. Williams
Publisher:
ISBN: 9780565060411
Category : Bumblebees
Languages : en
Pages : 204

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Book Description

Author: Paul H. Williams
Publisher:
ISBN: 9780565060411
Category : Bumblebees
Languages : en
Pages : 204

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Book Description

Author: Robbin W. Thorp
Publisher: Univ of California Press
ISBN: 9780520096455
Category : Science
Languages : en
Pages : 100

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Book Description

Author: Paul H. Williams
Publisher: Princeton University Press
ISBN: 1400851181
Category : Nature
Languages : en
Pages : 209

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Book Description
The essential guide for identifying the bumble bees of North America More than ever before, there is widespread interest in studying bumble bees and the critical role they play in our ecosystems. Bumble Bees of North America is the first comprehensive guide to North American bumble bees to be published in more than a century. Richly illustrated with color photographs, diagrams, range maps, and graphs of seasonal activity patterns, this guide allows amateur and professional naturalists to identify all 46 bumble bee species found north of Mexico and to understand their ecology and changing geographic distributions. The book draws on the latest molecular research, shows the enormous color variation within species, and guides readers through the many confusing convergences between species. It draws on a large repository of data from museum collections and presents state-of-the-art results on evolutionary relationships, distributions, and ecological roles. Illustrated keys allow identification of color morphs and social castes. A landmark publication, Bumble Bees of North America sets the standard for guides and the study of these important insects. The best guide yet to the 46 recognized bumble bee species in North America north of Mexico Up-to-date taxonomy includes previously unpublished results Detailed distribution maps Extensive keys identify the many color patterns of species

Author: Gabriela Chavarría-Villaseñor
Publisher:
ISBN:
Category : Bumblebees
Languages : en
Pages : 250

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Book Description

Author: Elaine Evans
Publisher:
ISBN:
Category : Bees
Languages : en
Pages : 76

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Book Description
Methods for rearing native bumblebee, Bombus impatiens, in confinement. The methods can be used to rear bumblebee colonies for backyard garden pollination, for commercial hot-house pollination of tomatoes, for cranberry and blueberry growers, and to help with native prairie restoration projects.

Author: Paul Hugh Williams
Publisher:
ISBN: 9781785396014
Category : Bumblebees
Languages : en
Pages :

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Book Description
Bumble Bees of North America is the first comprehensive guide to North American bumble bees to be published in more than a century. Richly illustrated with color photographs, diagrams, range maps, and graphs of seasonal activity patterns, this guide allows amateur and professional naturalists to identify all 46 bumble bee species found north of Mexico and to understand their ecology and changing geographic distributions.

Author: Sarah A. Maxfield-Taylor
Publisher:
ISBN:
Category : Bumblebees
Languages : en
Pages : 112

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Book Description
Bumble bees (Hymenoptera: Apidae) are important native pollinators in wild and agricultural systems, and are one of the few groups of native bees commercially bred for use in the pollination of a range of crops. In recent years, declines in bumble bees have been reported globally. One factor implicated in these declines, believed to affect bumble bee colonies in the wild and during rearing, is natural enemies. A diversity of fungi, protozoa, nematodes, and parasitoids has been reported to affect bumble bees, to varying extents, in different parts of the world. In contrast to reports of decline elsewhere, bumble bees have been thriving in Oregon on the West Coast of the U.S.A. In particular, the agriculturally rich Willamette Valley in the western part of the state appears to be fostering several species. Little is known, however, about the natural enemies of bumble bees in this region. The objectives of this thesis were to: (1) identify pathogens and parasites in (a) bumble bees from the wild, and (b) bumble bees reared in captivity and (2) examine the effects of disease on bee hosts. Bumble bee queens and workers were collected from diverse locations in the Willamette Valley, in spring and summer. Bombus mixtus, Bombus nevadensis, and Bombus vosnesenskii collected from the wild were dissected and examined for pathogens and parasites, and these organisms were identified using morphological and molecular characteristics. Queens of Bombus griseocollis, Bombus nevadensis, and Bombus vosnesenskii were reared in captivity, and those that died or did not initiate nests were also examined for pathogens and parasites. In addition, the immune responses of healthy and infected bees were compared, to examine the effects of a common bumble bee gut pathogen Crithidia bombi (Kinetoplastida: Trypanosomatidae) on its host. This thesis reports that wild bumble bees in western Oregon are infected with the protozoa Apicystis bombi (Neogregarinida: Ophrocystidae) and Crithidia bombi, the fungus/microsporidian Nosema bombi (Microsporidia: Nosematidae), the nematode Sphaerularia bombi (Nematoda: Tylenchida), and two dipteran parasitoids, one unknown and one belonging to the family Conopidae (Diptera: Conopidae). In addition, this research presents the first ever report of infection by the larval pathogen Ascosphaera apis (Ascomycota: Ascosphaerales), in reared bumble bee adults. New host and distribution records are also presented for C. bombi, N. bombi, and S. bombi. The study found that bumble bees infected with C. bombi had lower activated levels of immune responses than healthy bees. The thesis discusses the long-term implications of study findings, and addresses the threat that bumble bee diseases pose to bee pollinators through shared environments.