Organic farming methods favor pollinators

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by Isabel Rubio

Posted on September 18, 2018


Organic farming methods favor pollinators

Pollinating insects are endangered, with a particularly decline over the last 40 years. An extensive study from Lund University in Sweden has found that organic farming methods can contribute to halting the pollinator decline. This beneficial effect is due to both the absence of insecticides and a higher provision of flower resources.

Organic farming is known to promote pollinator diversity in crop fields. However, it has also been suggested that organic fields might simply attract pollinators from other habitats in the landscape, and therefore not sustain their populations in the long run.

The research found that the number of bumblebee species in organic farms was higher and more stable over time and space than in conventional farms.

This study show that organic farming has a consistent, stabilizing effect on pollinator diversity.

Researchers sampled bumblebees, butterflies, and flowering plants throughout the growing season in 10 organic and 9 conventional farms in Scania, Sweden. Their study showed that, depending on the type of crop, the stabilizing effect was either due to a more stable provision of flowers or the absence of pesticides.

An interesting result of our study is the fact that stable and abundant flower resources stabilizes pollinator communities, even in conventional farms where insecticides are used. This is strongly suggesting that both flower-enhancing management options and a reduced use of insecticides can help reverse pollinator declines.


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