Importance of pollinators in changing landscapes for world crops
- A. Klein, B. Vaissière, T. Tscharntke
- Environmental ScienceProceedings of the Royal Society B: Biological…
- 7 February 2007
It is found that fruit, vegetable or seed production from 87 of the leading global food crops is dependent upon animal pollination, while 28 crops do not rely upon animalPollination, however, global production volumes give a contrasting perspective.
Pollen nutritional content and digestibility for animals
This paper reviews the literature concerning digestion and nutrient content of pollen. Four topics are addressed in detail: 1) The mechanism of pollen digestion by animals; 2) The efficiency of…
WHAT GOVERNS PROTEIN CONTENT OF POLLEN: POLLINATOR PREFERENCES, POLLEN–PISTIL INTERACTIONS, OR PHYLOGENY?
This database compares pollen protein concentration with pollination mode, pollen collection by bees, and distance from stigma to ovule, after accounting for phylogeny through paired phylogenetic comparisons and a nested ANOVA including taxonomic rank.
Estimation of bee size using intertegular span (Apoidea)
- J. Cane
The dry weights of solitary female bees are accurately and readily estimated by a nonlinear, exponential regression equation using the shortest linear distance measured between a female bee's wing…
Complex responses within a desert bee guild (Hymenoptera: Apiformes) to urban habitat fragmentation.
- J. Cane, R. Minckley, L. Kervin, T. Roulston, N. Williams
- Environmental ScienceEcological Applications
- 1 April 2006
Overall, bee response to urban habitat fragmentation was best predicted by ecological traits associated with nesting and dietary breadth, had species been treated as individual units in the analyses, or pooled together into one analysis, these response patterns may not have been apparent.
The potential consequences of pollinator declines on the conservation of biodiversity and stability of food crop yields
- J. Cane
The work group encourages increased education and training to ensure that both the lay public and resource managers understand that pollination is one of the most important ecological services provided to agriculture through the responsible management and protection of wildland habitats and their populations of pollen-vectoring animals and nectar-producing plants.
The alfalfa leafcutting bee, Megachile rotundata: the world's most intensively managed solitary bee.
The alfalfa leafcutting bee (ALCB), Megachile rotundata F. (Megachildae) presents a model system for commercializing other solitary bees and for advancing new testable hypotheses in diverse biological disciplines.
Soils of ground-nesting bees (Hymneoptera: Apoidea): Texture, moisture, cell depth and climate
- J. Cane
- Environmental Science
The nesting soils of taxonomically diverse bee species were surveyed across a broad range of soil moistures, textures, habitats, and biomes of North America to reveal any predictive correlations of these edaphic measures with bee size, climate, taxonomic affiliation or to each other.
Sampling Bees (Hymenoptera: Apiformes) for Pollinator Community Studies: Pitfalls of Pan-trapping
Traditional net collecting at flowers and pan trapping concurrently are compared, sampling the local bee fauna of the dominant desert shrub, creosote bush growing at the Silver bell site of the International Biosphere Program (IBP) of Tucson Arizona.
The effect of pollen protein concentration on body size in the sweat bee Lasioglossum zephyrum (Hymenoptera: Apiformes)
Adult foragers did not adjust provision size to compensate for pollen protein, and offspring body size appears to result from a combination of controlled (provision size) and uncontrolled (pollen quality) factors that arise out of bee foraging decisions.