Abundance and Diversity of Native Bumble Bees Associated with Agricultural Crops: The Willamette Valley Experience

<table>Comparison of the numbers of queens and workers of <i>B. vosnesenskii</i> observed foraging on bloom (<i>n</i> = 127 counts) and red clover (<i>n</i> = 187 counts).</table>

Psyche: A Journal of Entomology

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Figure 3

Figure 3: Abundance and Diversity of Native Bumble Bees Associated with Agricultural Crops: The Willamette Valley Experience 