Dec 14, 2006

Importance of pollinators in changing landscapes for world crops

Proceedings. Biological Sciences
Alexandra-Maria KleinT Tscharntke

Abstract

The extent of our reliance on animal pollination for world crop production for human food has not previously been evaluated and the previous estimates for countries or continents have seldom used primary data. In this review, we expand the previous estimates using novel primary data from 200 countries and 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 animal pollination. However, global production volumes give a contrasting perspective, since 60% of global production comes from crops that do not depend on animal pollination, 35% from crops that depend on pollinators, and 5% are unevaluated. Using all crops traded on the world market and setting aside crops that are solely passively self-pollinated, wind-pollinated or parthenocarpic, we then evaluated the level of dependence on animal-mediated pollination for crops that are directly consumed by humans. We found that pollinators are essential for 13 crops, production is highly pollinator dependent for 30, moderately for 27, slightly for 21, unimportant for 7, and is of unknown significance for the remaining 9. We further evaluated whether local and landscape-wide managem...Continue Reading

  • References27
  • Citations667

References

  • References27
  • Citations667

Citations

Mentioned in this Paper

Study
Crops, Agricultural
Health Services
SPP2 dioxygenase
Food
Reproduction
Avian Crop
LUC7L3 gene
Sustain
Contrast Used

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