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'Cash crops' at risk from pollinator decline?(Brief article)

Ecos

| February 01, 2009 | COPYRIGHT 2009 CSIRO Publishing. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan.  All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)Copyright

An international study of long-term trends in crop pollination has concluded that an increasing reliance of developing countries on pollinator-dependent crops, such as coffee, could reduce these nations' crop harvests if pollinator numbers continue to decline.

'The fact that while pollinators are declining in various parts of the world, global agricultural systems are becoming more dependent on pollinators could create serious problems in the future,' says CSIRO's Dr Saul Cunningham, a co-author of the study, published in the journal Current Biology.

The researchers are concerned that pollinator shortages--including the well-documented global decline in bee populations--might have already started to affect crops that rely heavily on pollination.

However, pollinator decline to date does not appear to have limited global crop yields, according to the study's analysis of FAO data from 1961-2006.

'While this is a positive finding, the interaction between yields ...

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