3176Re: [beemonitoring] Re: Pinning only a set of vouchers
- Feb 12, 2014All:We often pin or glue to pins but don't label bees from projects. Bees on pins are easier to ID and handle, but making out labels for things that are not kept adds a great deal of time. You need to be careful about how you handle your databases, however, to make sure you have a clear system for not double counting bees and tracking what has and has not been saved. So, for example, all our specimens are given numbers even if a label is not printed out.At some point, after your accounting and with great bless-ed assurance that everything is identified and dabased correctly you can recycle the pins to use again, printing out labels for specimens that will be kept as vouchers.I would suggest that everything stay on pins until you are completely finished...just to make sure there are no mistakes that you need to double check. Guarenteed that you will make some mistakes on ID's or databasing that will require you to go back to the specimens that you thought you had finished with.Once you are ready to recycle your pins, here is what we do.1. Push the bulk of the specimen body off the pin by roughly running your fingers down the pin while the specimens are pinned in the box, don't get anal about left over chunks on the pin.2. Dump out the dead bodies from the box.3. Pull the pins out of the bottom of the box, but leave them laying in the box4. Dump the pins into a tupperware container5. Cover pins with steaming hot water and add a big blog of dishwashing liquid.6. Put on shaker table for 20 minutes.7. Rinse out soap and remaining detritus8. Pull pins out and let dry in a clump on paper towelssamOn Wed, Feb 12, 2014 at 12:51 PM, Neil Stanley Cobb <neil.cobb@...> wrote:
We use a 1 specimen/gender/site/sampling period/year formula as a “general rule” for our studies and for any study we target 30 total specimens per year (M & F) . This is a general rule, if we have a highly variable taxa we might do more or a taxa that we think might be more than one species. If you consider the cost of processing and storing it is not feasible for us to veer from this formula unless the project really needs lots of individuals.
Thanks again for the great responses. Many people are suggesting that I pin them all, but I'm concerned that it's just not feasible. For example:
2 specimens * 2 genders (male & female) * .3 specimens/pan trap (from previous MN studies) * 24 pan traps/transect * 1 transect/site * 90 sites (maximum) * 12 collecting dates (biweekly April through October) = 31,104 specimens per season.
If we increase the number of bees collected per pan trap to 3 (which is possible), then the number of bees collected is quite large: 311,040 per season.
On Wed, Feb 12, 2014 at 10:34 AM, Crystal Boyd <Crystal.Boyd@...> wrote:
Thanks for the great response so far. This list-serv is so wonderful.
I should mention that we're planning to run one transect of 24 bowls per site (3 each of blue, yellow, and white). We will also place blue vane traps and hand-net when we can, but the focus is mainly on pan traps.
The problem is that pan traps can collect many specimens of the same species, and it's impractical to pin them all. For example, one transect might result in 20 Agapostemon virescens, but it's time-consuming to pin them all. How many would you pin?
On Wed, Feb 12, 2014 at 10:13 AM, Crystal Boyd <Crystal.Boyd@...> wrote:
Hi, Bee Monitor-ers. Do you have any guidelines for what subset of bee specimens to voucher? For example, would you recommend 2 specimens/gender/species/site/collection date? (whew!)
I’m hoping to use your expertise to estimate the number of specimens we should process for a monitoring program that could include up to 90 sites in Minnesota's prairie province.
Looking forward to your suggestions,
--Bees are Not OptionalApes sunt et non liberum
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