Long Island National Wildlife Refuge

This is a summary of bee data from 8 fields from the Long Island National Wildlife Refuge collected in late Summer/early Fall 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 the brief site description.

Site	Description
5550	LINWR Site 1;Wertheim: Pine Barrens Region
5551	LINWR Site 2;Wertheim: Pine Barrens Region
5552	LINWR Site 3;Wertheim: Pine Barrens Region
5553	LINWR Site 4;Wertheim: Pine Barrens Region
5554	LINWRC Site 5;Sayville Unit;Field with federally endangered Agalinis acuta
5555	LINWRC Site 6;Sayville Unit;Field with federally endangered Agalinis acuta
5556	LINWRC Site 7;Sayville Unit;Field with federally endangered Agalinis acuta
5557	LINWRC Site 8;Sayville Unit;Field with federally endangered Agalinis acuta

Below is a table of the results by site:

Species	5550	5551	5552	5553	5554	5555	5556	5557	Grand Total
Agapostemon virescens	4	3	1	3		3	2	2	18
Anthidium manicatum	1								1
Augochlorella aurata	4	2			2		6	3	17
Bombus citrinus			1						1
Ceratina calcarata	1	2							3
Ceratina dupla	28	8							36
Halictus confusus		1			1				2
Halictus ligatus		1						3	4
Hylaeus affinis/modestus		8							8
Hylaeus illinoisensis/sp.A	3	3							6
Hylaeus schwarzii	1								1
Lasioglossum tegulare				1					1
Lasioglossum leucozonium								1	1
Lasioglossum near rohweri	1	3							4
Lasioglossum pectorale		1							1
Lasioglossum pilosum	3	1	1	2					7
Megachile mendica	1	1							2
Megachile rotundata	1								1
Megachile species								1	1
Triepeolus lunatus		1							1
Grand Total	48	35	3	6	3	3	8	10	116

Interpretation: Pretty standard field bee list, some good numbers (anything more than 1 bee per bowl is "good") in some of the Pine Barrens sites. Hylaeus schwarzii is a relatively uncommon bee, one that we usually associate with the coasts, so it was nice to see it here. Bombus citrinus is a bumblebee that parasitizes other species of bumblebees and therefore fairly uncommon. Triepeolus lunatus is an uncommon parasite of Melissodes, again something not regularly encountered. For some reason the Ceratina's were isolated in just the first 2 sites...often they are associated with areas of high scrub/woody stems with a great deal of dear browse. Despite the different numbers all the sites appear fairly similar in terms of their base bee populations.

Sam and Leo