Pollination Biology of Potentilla recta (Sulfur Cinquefoil) and Its Cooccurring Native Congener Potentilla gracilis in Northeastern Oregon

Table 5

List of pollinator species observed more than once, in order of abundance, for the 2003 flowering season at Ham and Rice sites, at Potentilla recta (exotic) and Potentilla gracilis (native) flowers, throughout the duration of the pollinator exclusion experiment conducted at these two sites, in June and early July 2003. Bold face refers to large bodied individuals, underline refers to medium bodied individuals, and light face refers to small bodied individuals.

Pollinator species	Rice native	Pollinator species	Ham native
H ylaeus episcopalis	6	Panurginus sp.	23
Lasioglossum sp.	5	Lasioglossum olympiae	12
Trichodes ornatus	4	Halictus ligatus	7
Eristalis hirta	4	Halictus tripartitus	7
Panurginus sp.	2	Halictus sp.	7
Lasioglossum olympiae	2	Apis melifera	6
Bombus rufocinctus	2	Bombyliidae 2	6
Andrena sp.	2	Eristalis hirta	3
Ceratina acantha	2	Coenonympha tullia	3
Andrena candida	2	Ceratina acantha	3
Bombyliidae UID	2	Osmia sp. A	3
Halictus farinosus	2	Andrena augustitarsata	2
Chlosyne paulla	2	Aporinellus yucatanchsis	2
Pollenia pseudorudis	2	Lasioglossum (Evylaeus)	2
		Melissodes bimatris	2
17 species Seen Once	17	20 Species seen once	20
Total richness	31	Total richness	35
Total abundance	56	Total abundance	108
Pollinator species	Rice sulfur	Pollinator species	Ham sulfur
Hylaeus episcopalis	6	Apis melifera	27
Eristalis hirta	6	Hylaeus episcopalis	3
Bombus rufocinctus	2	Bombus bifarius	3
Bombus bifarius	2	Eristalis hirta	2
Andrena sp.	2	Andrena candida	2
Andrena prunorum	2	Colletes sp.	2
Ceratina acantha	2	Osmia pusilla	2
Megachile perhirta	2	Andrena thaspii	2
14 species seen once	14	16 Species seen once	16
Total richness	22	Total richness	25
Total abundance	38	Total abundance	84