316Re: [beemonitoring] The Soap Collecting Jar
- Jun 4, 2008Jack:
I agree, in general...the soapy water collection does destroy all pollen and that has been a valuable contribution to bee natural history and thus collecting fresh specimens and placing them in the museum are always to be encouraged. However, much of what we are doing are general surveys of relatively common species (though with surprises) and our limiting factor is usually time, so we are attracted to some of the bowl techniques. In reality I almost always use both. I put out bowls in the early A.M. and net collect through the day. Each collection technique emphasizes a different fraction of the bee community. The advantage of bowls for general surveys is that they are more replicable than following the ramblings, skill, and proclivities of a person with a net.
In the end it depends on what your project and goals as to what combination you use. In many circumstances a nice array of Malaise traps is really the ticket...but then these have a separate set of issues.
Sam Droege Sam_Droege@...
w 301-497-5840 h 301-390-7759 fax 301-497-5624
USGS Patuxent Wildlife Research Center
BARC-EAST, BLDG 308, RM 124 10300 Balt. Ave., Beltsville, MD 20705
"...and though the holes were rather small, they had to count them all..."
A day in the life.
P Please don't print this e-mail unless really needed.
Jack Neff <jlnatctmi@...>
Sent by: email@example.com
06/04/2008 02:30 PMPlease respond to
firstname.lastname@example.orgSubject Re: [beemonitoring] The Soap Collecting Jar
Sam: I understand the utility of pan traps and the
like for certain types of surveys, but I regret the
generation of so many specimens with no biological
information beyond it was there then. For bee
biology, this is a step backwards. Hand collecting
directly into soapy water, or alcohol or whatever, is
a useful emergency technique but I would hope it would
would not become a primary collecting method. The
pollen that bees collect is valuable data and removing
it as a matter of course, either as a byproduct of the
collecting technique, or intentionally, as a matter
of aesthetics or ease of identification, is something
that should be discouraged. A rigorous analysis of
diet breadth in bees requires pollen analysis and this
is impossible for specimens that have been through the
--- frozenbeedoc@... wrote:
> Hey Sam,John L. Neff
> I figured that out last summer (soap in collecting
> jars). Forgot to tell
> you. Worked well for me. I used a small jelly
> canning jar. Easy to carry and
Central Texas Melittological Institute
7307 Running Rope
Austin,TX 78731 USA
- << Previous post in topic Next post in topic >>