Insect Pollinators

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Bee data : Canada, Vancouver
(2004) Tommasi, Desiree
Conducted a pilot study consisting of informal collections across the Vancouver metropolitan area from April to September of 2000. The primary study was conducted from March to August 2001, cut into five seasons: late winter (15 March to 14 April), early spring(15 April to 14 May), late spring (15 May to 14 June), early summer (15 June to 14 July) and late summer (15 July to 15 August). A total of 25 sites were distributed into 5 categories: City gardens (6), naturescape flower beds and backyards (6), wild areas (8), and traditional flower beds and backyards (5).
Bee data : Arizona, Phoenix
(2000) Macintyre, Nancy E.; Hostetler, Mark E.
Bees were collected with water traps. Two pairs of bowls were set out per site,with members within a pair separated by 20 cm and pairs separated by 5 ill. Collected a total of 256 samples. Unscented liquid soap was used to minimize bias from differential attraction to odor. Yellow and blue bowls were used because the visual acuity of most Hymenoptera tested to date includes only three fields: yellow, blue, and ultraviolet.