James H. Cane

Solitary Ground-Nesting Bees: Opportunities and Challenges for Crop Pollination Management

James H. Cane, Margarita M. López-Uribe, Rachel E. Mallinger

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Minor exceptions to the strict co-dependency between a specialist Andrena bee and its death camas host, Toxicoscordion (Melanthiaceae)

James H. Cane

Are crop yields limited by pollinators? Proper assessments using pollinator gradients require measurements of flower density and yield potential

Stan Chabert, James H. Cane, Bernard Vaissière, Rachel E. Mallinger

Abstract It is widely documented that many crops depend on animal—and primarily insect—pollination, but the degree to which pollinators limit yield in comparison with other factors is poorly understood. Recent studies conclude that pollinator visitation rates limit yields of many crops, based …

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Diapausing Cavity-Nesting Bees (Osmia, Megachile) Resist Winter Desiccation Stress

James H. Cane

All solitary and primitively eusocial bees of the temperate zones survive winter in a dormant diapausing state. Weight loss of Osmia and Megachile bees has been solely attributed to metabolism of stored triglycerides, as evidenced by loss of fat body. I hypothesized …

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Foliar traits, taxonomic preferences, and foraging effort by Osmia bruneri bees acquiring leaf pulp for nest construction (Hymenoptera: Megachilidae)

James H. Cane, Byron Love

Abstract Several genera of osmiine bees (Osmia and Hoplitis) are unique among animals for building nests using leaf pulp (mastic). Only scattered anecdotes indicate their leaf choices. To learn more, a large captive nesting population of cavity-nesting Osmia bruneri was offered foliage …

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Pollination Needs and Diverse Bees of a Prospective Fuelbreak Wildflower, Curlycup Gumweed (Grindelia squarrosa)(Asteraceae)

James H. Cane, Byron Love, Skyler Burrows, Alexander Fortin et autres

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Enhancing entomophilous pollination for sustainable crop production

Monica Borghi, Lisa W. DeVetter, Patrick P. Edger, Michael Gutensohn et autres

Successful fertilization of insect-pollinated crops hinges on a delicate interplay of olfactory and visual signals of pollinator attraction, the chemical complexity of nectar and pollen rewards, and the physical interaction between insects and flower anatomy for efficient pollen transfer. These traits, which …

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Honeybees prevail at native wildflowers distant from wildland apiaries

James H. Cane

Diverse flies (Diptera) likely pollinate an alpine death camas, Anticlea elegans (Melanthiaceae)

James H. Cane

Several populations of a species of death camas (Anticlea elegans) (Melanthiaceae) were found growing and flowering above treeline in the remote Lemhi Mountains of southeastern Idaho USA. The predominant floral visitors were flies representing four families, particularly the Syrphidae. Many individual flies …

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Eggs of the bee Osmia lignaria endure weeks of prolonged cold weather

James H. Cane, Ronald C. Spendal

Honeybees Prevail at Native Wildflowers Distant from Wildland Apiaries

James H. Cane

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Can larval Osmia bees (Megachilidae) tolerate conifer resin volatiles?

James H. Cane

Some bees of the Megachilidae, particularly anthidiines, collect plant resins to partition, plug and sometimes line their nest cells. Adult females possess putative morphological, behavioral and perhaps exocrine adaptations for resin harvest, transport and handling. Their eggs and larvae later experience volatiles …