نتایج جستجو برای: carpenter and coustan criteria
تعداد نتایج: 16845039 فیلتر نتایج به سال:
PREFERENCE OF HONEY BEES, CARPENTER BEES, AND BUMBLE BEES FOR NEW CROPS IN VIRGINIA. Mark Kraemer & Harbans Bhardwaj, Agricultural Research Station, Virginia State Univ., Petersburg, VA 23806. Agricultural crops may provide important nectar and pollen resources for native bees and the European honey bee, especially during the mid to late summer period when forage resources are limited. In some ...
PREFERENCE OF HONEY BEES, CARPENTER BEES, AND BUMBLE BEES FOR NEW CROPS IN VIRGINIA. Mark Kraemer & Harbans Bhardwaj, Agricultural Research Station, Virginia State Univ., Petersburg, VA 23806. Agricultural crops may provide important nectar and pollen resources for native bees and the European honey bee, especially during the mid to late summer period when forage resources are limited. In some ...
Edited by Simon A. Levin Stephen R. Carpenter, H. Charles J. Godfray, Ann P. Kinzig, Michel Loreau, Jonathan B. Losos, Brian Walker & David S. Wilcove: The Princeton Guide to Ecology is published by Princeton University Press and copyrighted, © 2009, by Princeton University Press. All rights reserved. No part of this book may be reproduced in any form by any electronic or mechanical means (incl...
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