Kim passed this on in reference to this thread;

*From:* Pollinator <[log in to unmask]> *On
Behalf Of *David Inouye
*Sent:* Thursday, March 21, 2019 1:31 PM
*To:* [log in to unmask]
*Subject:* [Pollinator] Honeybees disrupt the structure and functionality
of plant-pollinator networks



Valido, A., et al. (2019). "Honeybees disrupt the structure and
functionality of plant-pollinator networks." Sci Rep 9(1): 4711.


    The honeybee is the primary managed species worldwide for both crop
pollination and honey production. Owing to beekeeping activity, its high
relative abundance potentially affects the structure and functioning of
pollination networks in natural ecosystems. Given that evidences about
beekeeping impacts are restricted to observational studies of specific
species and theoretical simulations, we still lack experimental data to
test for their larger-scale impacts on biodiversity. Here we used a
three-year field experiment in a natural ecosystem to compare the effects
of pre- and post-establishment stages of beehives on the pollination
network structure and plant reproductive success. Our results show that
beekeeping reduces the diversity of wild pollinators and interaction links
in the pollination networks. It disrupts their hierarchical structural
organization causing the loss of interactions by generalist species, and
also impairs pollination services by wild pollinators through reducing the
reproductive success of those plant species highly visited by honeybees.
High-density beekeeping in natural areas appears to have lasting, more
serious negative impacts on biodiversity than was previously assumed.



https://www.nature.com/articles/s41598-019-41271-5.epdf?author_access_token=yuiLslelYS-eh3zPlhUS39RgN0jAjWel9jnR3ZoTv0N3qUVgu4h8L4yEBA3Q40VXlS4AZoLCE_bjtNLEKwp6TKl7wGba4lrKhR93PEHismfuphZffdjH_goj-3-uBv-8rEeWIDxF69yZ1-wmgBKnMA%3D%3D

or

https://tinyurl.com/y2j9kxeh

-- 

Dr. David W. Inouye

Professor Emeritus

Department of Biology

University of Maryland

College Park, MD 20742-4415

[log in to unmask]



Principal Investigator

Rocky Mountain Biological Laboratory

PO Box 519

Crested Butte, CO 81224

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