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EBookClubs

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Book Bee Pollination in Agricultural Ecosystems

Download or read book Bee Pollination in Agricultural Ecosystems written by Rosalind James and published by Oxford University Press. This book was released on 2008-09-09 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt: For many agricultural crops, bees play a vital role as pollinators, and this book discusses the interplay among bees, agriculture, and the environment. Although honey bees are well recognized as pollinators, managed bumble bees and solitary bees are also critical for the successful pollination of certain crops, while wild bees provide a free service. As bees liberally pass pollen from one plant to the next, they also impact the broader ecosystem, and not always to the benefit of humankind. Bees can enhance the unintentional spread of genes from genetically engineered plants, and may increase the spread of invasive weeds. Conversely, genetically engineered plants can impact pollinators, and invasive weeds can supply new sources of food for these insects. Bees' flower-visiting activities also can be exploited to help spread biological control agents that control crop pests, and they are important for native plant reproduction. Managing bees for pollination is complex and the factors that must be taken into consideration are treated here, including bee natural history, physiology, pathology, and behavior. Furthermore, transporting bees from native ranges to new areas for pollination services can be controversial, and needs to be done only after assuring that it will not disrupt various ecosystems. Even though bees are small, unobtrusive creatures, they play large roles in the ecosystem. The connection between bees and humankind also is symbolic of a broader interconnection between humans and the natural world.

Book Towards sustainable crop pollination services

Download or read book Towards sustainable crop pollination services written by Food and Agriculture Organization of the United Nations and published by Food & Agriculture Org.. This book was released on 2020-05-01 with total page 194 pages. Available in PDF, EPUB and Kindle. Book excerpt: As the discipline of pollination ecology moves from describing the extent of a pollinator crisis, to identifying what can be done about it, there is a need to share and highlight very practical measures that will support sustainable crop biotic pollination services. Identifying these practices will require a mix of farmer and natural historian knowledge and scientific research. In this publication, we will outline the practices that have been so far identified, and what experiences may contribute to sharing the effectiveness of these measures under different circumstances.

Book Pests and Pollinators of Vegetable and Oilseed Crops

Download or read book Pests and Pollinators of Vegetable and Oilseed Crops written by Dharam P. Abrol and published by Scientific Publishers. This book was released on 2019-03-21 with total page 495 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pest management for vegetable crops and safety provision for the pollinators is a challenging task in the context to increase vegetable productivity without upsetting the ecological balance. The book Pests and Pollinators of Vegetable and Oilseed Crops aims to integrate and develop pest control strategies by minimizing their impact on beneficial insect species such as natural enemies and pollinators for enhancing fruit production and quality. A detailed account is provided on pests and pollinators of oilseed crops such as Cruciferous, Solanaceous, Umbelliferous, Cucurbitaceous, Malvaceous, Leguminous and Alliaceae. The compilation of this book is unique as it does not deal only with the conventional way of pest management for different crops; it takes into consideration the role of pollinators and their profitable utilization in the larger context of ecologically based pest management and safety of pollinators. An exemplary attempt is made to promote a large, diverse, sustainable and dependable bee pollinator workforce that can meet the challenges of optimizing food production in the twenty-first century and beyond.

Book Principles of Pollination Ecology

Download or read book Principles of Pollination Ecology written by K. Faegri and published by Elsevier. This book was released on 2013-10-22 with total page 257 pages. Available in PDF, EPUB and Kindle. Book excerpt: A completely revised and rewritten edition of this comprehensive survey of the botanical problems of pollination ecology approached from both a theoretical and a practical viewpoint. Examples are drawn from all geographical areas where pollination has been studied and general principles are illustrated by a number of concrete examples. Introductory chapters survey the technical problems and draw comparisons with spore dissemination in cryptogams and pollination in gymnosperms. The following chapters deal with angiosperm pollination and are divided into three parts: organs involved in pollination, flower types and pollinator activities

Book Proceedings of the Entomological Society of Ontario

Download or read book Proceedings of the Entomological Society of Ontario written by Entomological Society of Ontario and published by . This book was released on 1988 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Proceedings of the 7th International Symposium on Pollination

Download or read book Proceedings of the 7th International Symposium on Pollination written by K. W. Richards and published by . This book was released on 1997 with total page 468 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Apicultural Abstracts

Download or read book Apicultural Abstracts written by and published by . This book was released on 1977 with total page 732 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Cucurbit Specialist Peponapis Pruinosa is a More Effective Pollinator Than Generalist Apis Mellifera for Cultivated Squash

Download or read book Cucurbit Specialist Peponapis Pruinosa is a More Effective Pollinator Than Generalist Apis Mellifera for Cultivated Squash written by Maria Izabel Martinez and published by . This book was released on 2020 with total page 101 pages. Available in PDF, EPUB and Kindle. Book excerpt: The western honey bee (Apis mellifera) is a super-generalist in terms of floral visitation, but its effectiveness as a pollinator varies greatly. This variation has called attention to the importance of native insects as pollinators in agricultural systems and has raised concerns that floral visitation by honey bees can adversely impact some plant species. To clarify what factors underlie this variation, we use multiple approaches to compare the effectiveness of specialist (Peponapis pruinosa) and generalist (honey bees) pollinators of cultivated squash (Cucurbita pepo). Previous studies report conflicting results on the effectiveness of P. pruinosa and A. mellifera as pollinators of C. pepo but have not typically considered how specific foraging behaviors (e.g., degree of contact with the stigma or anthers) influence their effectiveness. To resolve this uncertainty, I conducted single and multiple visit trials on C. pepo plants at the UC San Diego Biology Field Station to examine how visitation and behavior of these two bee species affect pollinator effectiveness. Visitation by female squash bees was found to have a greater positive effect on pollen removal, pollen deposition, fruit set, and seed set (i.e. seed number) compared to honey bee visitation. These findings were consistent with the behavior of the pollinator species. Cumulative duration of stigmatic and anther contact by female squash bees had a greater effect on pollen deposition and pollen removal compared to the same behaviors in honey bees. Previous studies on cultivated squash conducted in agricultural settings have found that the effectiveness of honey bees and squash bees appears more similar than what we report here. These contrasting results could be explained by differences in resource availability in large scale agricultural versus small scale plots. At our study sites, for example, honey bees primarily collected nectar from cucurbits and foraged for pollen on other plant species in the immediate environment.

Book Catalogs of the Scripps Institution of Oceanography Library

Download or read book Catalogs of the Scripps Institution of Oceanography Library written by Scripps Institution of Oceanography. Library and published by . This book was released on 1980 with total page 768 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Smithsonian Contributions to Zoology

Download or read book Smithsonian Contributions to Zoology written by Smithsonian Institution and published by . This book was released on 1974 with total page 680 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Monthly Catalog of United States Government Publications Cumulative Index

Download or read book Monthly Catalog of United States Government Publications Cumulative Index written by United States. Superintendent of Documents and published by . This book was released on 1976 with total page 1408 pages. Available in PDF, EPUB and Kindle. Book excerpt: