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2497RE: [Possible SPAM] Re: [beemonitoring] Alternative Methodology Question

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  • David Inouye
    Nov 8, 2012
    • 0 Attachment
      The kind of re-fillable cannisters used for paintball guns might also
      be a good source of CO2.

      At 07:16 PM 11/8/2012, you wrote:
      >Jessica,
      >I have used compressed CO2 to knock out netted bees and then IDd
      >them in the field to genus. THis sometimes required a hand
      >lens. With a good prior knowledge of which species are common in
      >your area, this might be enough. Furthermore, I was able to train
      >undergraduates in all of the common bee genera so that each could
      >reliably ID to genus with this method, sometimes to species. I even
      >discovered that compressed air canisters, such as used for dusting
      >electronics, work pretty well and are cheaper and more available
      >than CO2 canisters. Caution must be used not to freeze the bees,
      >especially bumble bees.
      >
      >Karen Goodell
      >Ohio State University
      >________________________________________
      >From: beemonitoring@yahoogroups.com [beemonitoring@yahoogroups.com]
      >On Behalf Of John Plant [john.plant3@...]
      >Sent: Thursday, November 08, 2012 1:09 PM
      >To: Jack Neff; Jessica Beckham; beemonitoring@yahoogroups.com
      >Subject: [Possible SPAM] Re: [beemonitoring] Alternative Methodology Question
      >
      >Jessica,
      >I think it is very commendable to keep the killings down to a moderate level.
      >I have had some luck in refrigerating bees and putting each in their
      >own zip lock bag. This gives me a few minutes before they recover
      >and I can usually figure out the genus, in some cases even the
      >species, but mostly I need much more time.
      >This may not be practicable for field work.
      >Let us know if you come up with a good solution.
      >John Plant
      >
      >From: Jack Neff<mailto:jlnatctmi@...>
      >Sent: Thursday, November 08, 2012 19:05
      >To: Jessica Beckham<mailto:jessbeck47@...> ;
      >beemonitoring@yahoogroups.com<mailto:beemonitoring@yahoogroups.com>
      >Subject: Re: [beemonitoring] Alternative Methodology Question
      >
      >
      >
      >Jessica: There are no reliable no-kill methods for assessing bee
      >diversity at the species level. With practice, it is not hard to
      >recognize most genera without killing them, either while in flight
      >or capturing and examining them with a handlens (holding females
      >with a gloved hand) but this takes a lot of experience and will not
      >be easy for a novice. Various folks try to identify things via high
      >quality macrophotos of live insects but even these will be
      >insufficient for many taxa since the relevant characters often are
      >not visible in the pictures. Some people have tried chilling live
      >bees and examining them under a scope but in the absence of vouchers
      >or a proven ability to identify things this way, I have no idea how
      >reliable this technique is.
      >
      >best
      >
      >John L. Neff
      >Central Texas Melittological Institute
      >7307 Running Rope
      >Austin,TX 78731 USA
      >512-345-7219
      >________________________________
      >From: Jessica Beckham <jessbeck47@...>
      >To: "beemonitoring@yahoogroups.com" <beemonitoring@yahoogroups.com>
      >Sent: Thursday, November 8, 2012 10:41 AM
      >Subject: [beemonitoring] Alternative Methodology Question
      >
      >
      >Hello All,
      >
      >I am a PhD student who is developing a project to assess bee
      >pollinator diversity in urban gardens in my area (Denton, Texas). I
      >understand that the best methods for assessing bee diversity involve
      >collection of bees via hand netting and bowl traps, especially for a
      >novice at bee identification like myself. However, I am wondering
      >if there are any accepted no-kill methods for assessing bee
      >diversity. The reason is that, although I have had multiple local
      >urban gardeners and homeowners express interest in my project, some
      >are hesitant to participate because they realize that bees are
      >important resources and they do not want to help reduce the already
      >limited populations. To an extent I can see this point and am
      >thrilled that citizens are aware of the situation that our
      >pollinators are facing. I thought I would address this group to see
      >if anyone has used/knows of methodology for assessing bee diversity
      >without killing bees. Furthermore, has anyone dealt with similar experiences?
      >
      >Thanks in advance!
      >
      >Jessica Beckham
      >Ph.D Student
      >University of North Texas, Institute of Applied Science
      >
      >
      >
      >
      >
      >
      >
      >------------------------------------
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