01 جنوری 2008 112 pp. : ill. Global Action on Pollination Services for Sustainable Agriculture Gift of Dr Abram Bicksler Jan 24, 2023 Every continent has reports of pollinator declines in at least one region/ country. The losses of pollination services have been well documented in many specifi c instances;...
19 جنوری 1976 Worldwide, more than 3,000 plant species have been used as food, only 300 of which are now widely grown, and only 12 of which furnish nearly 90 percent of the world's food. These 12 include the grains: rice, wheat, maize (corn), sorghums, millets, rye, and barley, and potatoes, sweet potatoes,...
This bulletin, based on contributions from various contributors and edited by Dr. D.W. Roubik, introduces the reader to various aspects of natural and insect pollination. It discusses the pollinators themselves, and the ecological and economic importance of pollination, as well as applied...
This publication discusses honeybee health, colony collapse and mitigative and preventive measures. It includes data collection and research to identify factors affecting honeybee health.