347Re: [beemonitoring] Pan Trap Colors
- Jul 3, 2008
Yes, I use lavender, purple, light pink and shocking pink, regularly and get stronger results in the purples than the other colors, I have kept counts on the differences. I also use an orange bowl as the null, so I know I am not missing anything. I have seen bees in it, but not large quantities. I get more wasps and butterflies in it.
I have seen differences between the, blue, yellow, white, bowls but did not keep track of species, only numbers per color. I will tell you I have seen strong variance by sites, at times, and other times no difference.
Marie Springer, President
Friends of Wallkill River
National Wildlife Refuges
1547 Route 565, Sussex, NJ 07461
--- On Thu, 7/3/08, Gidi <gidpisa79@...> wrote:
From: Gidi <gidpisa79@...>
Subject: [beemonitoring] Pan Trap Colors
Date: Thursday, July 3, 2008, 8:28 AM
1. I was wondering if anoyone has worked with bowl traps colored pink
or violet, and if so, what were the results. A substantial fraction of
flowering species, including bee-pollinated ones, have these colors.
Where I come from (Israel), they greatly outnumber the blue ones.
2. Did anyone find any significant difference in bee
species/genera/ taxon/functional group composition, when comparing the
catches of white, blue and yellow bowls?
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