This will translate this blog to speech.

A blog that will gradually post the results of a study of the bees found by refuge biologists and volunteers using bee bowls traps on USFWS Region 5 National Wildlife Refuges in the Northeastern United States.

Friday, February 20, 2009

Ohio River Islands National Wildlife Refuge

This is a summary of bee data from 8 fields from the Ohio River Islands National Wildlife Refuge collected in August 2008. Each field was sampled with 5 fluorescent yellow, 5 fluorescent blue, and 5 white 3.25 ounce bowl traps.

A complete table of the data is available from Leo Shapiro (lshapiro@umd.edu), Sam Droege (sdroege@usgs.gov), or the refuge biologist.

Below is a table of the site numbers and a brief site description followed by a table of results.

Number Site
5612 ORINWR Site 1;Middle Island, St. Mary's, WV;Collectors' Garmin code NBSF1, NBSF15
5613 ORINWR Site 2;Middle Island, St. Mary's, WV;Collectors' Garmin code NBSF2, NBSF215
5614 ORINWR Site 3;Middle Island, St. Mary's, WV;Collectors' Garmin code NBSF3, NBSF315
5615 ORINWR Site 4;Middle Island, St. Mary's, WV;Collectors' Garmin code NBSF415, NBSF4
5616 ORINWR Site 5;Buckley Mainland, Williamstown, WV;Collectors' Garmin code NBSF5
5617 ORINWR Site 6;Buckley Mainland, Williamstown, WV;Collectors' Garmin code NBSF6
5618 ORINWR Site 7;Buckley Mainland, Williamstown, WV;Collectors' Garmin code NBSF7
5619 ORINWR Site 8;Buckley Mainland, Williamstown, WV;Collectors' Garmin code NBSF8

Site Locations on Middle Island

Locations on the mainland

Table of the results by species

Species 5612 5613 5614 5615 5616 5617 5618 5619 Grand Total
Agapostemon virescens


Apis mellifera


Augochlora pura

1 2
Bombus impatiens 2 2

Calliopsis andreniformis


Ceratina calcarata
4 3 1 6 1 1
Ceratina dupla 3 3 5 2

Ceratina sp.


Ceratina strenua 1

6 3
3 13
Halictus confusus

Halictus ligatus

Hylaeus affinus/modestus 1

1 1 1
1 5
Lasioglossum coriaceum


Lasioglossum fattigi/apocyni

1 1
Lasioglossum imitatum

4 2
Lasioglossum rohweri 1 1 20 10
4 2 1 39
Lasioglossum viridatum group 14 16 44 41 11 11 4 1 142
Megachile mendica


Melissodes bimaculata

1 2
1 4
Peponapis pruinosa

1 2

Grand Total 22 26 74 56 31 35 13 8 265

Quite a good number of bees in these traps, averaging over 2 bees per bowl. There is some interesting variation in the totals per field, spanning from 8 to 74. You can see that there is a shift between the two main localities with the numbers for Ceratina dupla, Lasioglossum rohweri, Lasioglossum viridatum being more common on the Island and several species showing up only on the mainland. It will be interesting to look at some of the community analyses here. Species-wise, the L. viridatum group is likely to be only one species, but there is a problem telling species apart within this group so at this point we cannot put a single name on things that look like these species. The L. fattigi/apocyni specimens are similar, but we aren't sure if there are really 1 or 2 of these uncommon species, likely we will send these off to get DNAed. Other than the aforementioned L. fattigi/apocyni specimens, this is a very straightforward interior East group of bees; all are common and would be expected in good numbers in almost any survey.

Sam and Leo

from Jayber Crow

No matter how much it may be used by towing companies ... and the like, the
river doesn't belong to the workaday world. ... Nothing keeps to its own way
more than the river does.
Another thing: No matter how corrupt and trashy it necessarily must be at
times in this modern world, the river is never apart from beauty. Partly, I
suppose, this is because it always keeps to its way.
Sometimes, living right beside it, I forget it. Going about my various
tasks, I don't think about it. And then it seems just to flow back into my
mind. I stop and look at it. I think of its parallel, never-meeting banks,
which never yet part. I think of it lying there in its long hollow, at the
foot of all the landscape, a single opening from its springs in the mountains
all the way to its mouth. It is a beautiful thought, one of the most
beautiful of all thoughts. I think it not in my brain only but in my heart
and in all the lengths of my bones.

- Wendell Berry

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With Natural History there is no need to go to the moon or Madagascar; there is more to find in your woodlot than in our entire solar system.