News News

The importance of bee diversity for crop pollination

Ecologists have shown through hundreds of experiments that ecological communities with more species produce higher levels of essential ecosystem functions such as biomass production, nutrient cycling, and pollination, but whether this finding holds in nature (that is, in large-scale and unmanipulated systems) is controversial. This knowledge gap is troubling because ecosystem services have been widely adopted as a justification for global biodiversity conservation. Here authors show that, to provide crop pollination in natural systems, the number of bee species must increase by at least one order of magnitude compared with that in field experiments. This increase is driven by species turnover and its interaction with functional dominance, mechanisms that emerge only at large scales. These results show that maintaining ecosystem services in nature requires many species, including relatively rare ones. informacion[at]ebd.csic.es Winfree et al (2018) Species turnover promotes the importance of bee diversity for crop pollination at regional scales. Science. DOI: 10.1126/science.aao2117


http://science.sciencemag.org/content/359/6377/791
Average (0 Votes)

Latest News Latest News

Parasite’s cost on insect vectors

Avian Plasmodium and malaria-like parasites of the genus Haemoproteus are widespread vector-borne parasites commonly found infecting birds. These parasites impose deleterious effects on their...

Loss of pollinators: evidences, causes and consequences

Over the past few years discussions on the pollinator crisis have increased and campaigns to save bees have multiplied. However, these campaigns have not always been evidence-based. During the last...

On the path to extinction: inbreeding and admixture in a declining gray wolf population

Allee effects reduce the viability of small populations in many different ways, which act synergistically to lead populations towards extinction vortexes. The Sierra Morena wolf population,...

Integration of satellite remote sensing data in ecosystem modelling

Spatiotemporal ecological modelling of terrestrial ecosystems relies on climatological and biophysical Earth observations. Due to their increasing availability, global coverage, frequent...