Book Description
Includes summarized reports of many bee-keeper associations.
Author :
Publisher :
Page : 926 pages
File Size : 15,62 MB
Release : 1861
Category : Bee culture
ISBN :
Includes summarized reports of many bee-keeper associations.
Author : Iowa. State Apiarist
Publisher :
Page : 774 pages
File Size : 43,84 MB
Release : 1924
Category : Bees
ISBN :
Volumes for 1917- include also Report of the annual convention of the Iowa Beekeepers Association.
Author : American Bee Journal
Publisher :
Page : 152 pages
File Size : 24,43 MB
Release : 1929
Category : Bee culture
ISBN :
Author : Oscar Clute
Publisher :
Page : 184 pages
File Size : 50,50 MB
Release : 1878
Category : Bee culture
ISBN :
Author : John Allen
Publisher :
Page : 184 pages
File Size : 39,20 MB
Release : 1879
Category : Bee culture
ISBN :
Author :
Publisher :
Page : 980 pages
File Size : 21,71 MB
Release : 1924
Category : Bees
ISBN :
Author :
Publisher :
Page : 918 pages
File Size : 38,90 MB
Release : 1871
Category :
ISBN :
Author : Karl Frederic Kellerman
Publisher :
Page : 532 pages
File Size : 46,33 MB
Release : 1908
Category : Sewage
ISBN :
Author : Oscar Grillo
Publisher : BoD – Books on Demand
Page : 478 pages
File Size : 43,36 MB
Release : 2011-12-16
Category : Science
ISBN : 9533074175
Ecosystems can be considered as dynamic and interactive clusters made up of plants, animals and micro-organism communities. Inevitably, mankind is an integral part of each ecosystem and as such enjoys all its provided benefits. Driven by the increasing necessity to preserve the ecosystem productivity, several ecological studies have been conducted in the last few years, highlighting the current state in which our planet is, and focusing on future perspectives. This book contains comprehensive overviews and original studies focused on hazard analysis and evaluation of ecological variables affecting species diversity, richness and distribution, in order to identify the best management strategies to face and solve the conservation problems.
Author :
Publisher :
Page : 20 pages
File Size : 40,17 MB
Release : 1975
Category : Beekeepers
ISBN :
Introduction -- Pollination and reproduction in plants -- Insects of major importance in plant pollination -- The economics of pollination -- Beekeeping regions in the United States -- Recognized problems -- The written contract -- Sample pollination agreement -- The Extension Service can help -- Sample program for state extension specialists -- Sample workshop schedule -- Selected references -- Appendix : research in progress.