Clough Y, Ekroos J, Báldi A et al.: Density of insect-pollinated ... (2014)

Clough Yann, Ekroos Johan, Báldi András, Batáry Péter, Bommarco Riccardo, Gross Nicolas, Holzschuh Andrea, Hopfenmüller Sebastian, Knop Eva, Kuussaari Mikko, Lindborg Regina, Marini Lorenzo, Öckinger Erik, Potts Simon, Poyry Juha, Roberts Stuart, Steffan-Dewenter Ingolf, Smith Henrik
Density of insect-pollinated grassland plants decreases with increasing surrounding land-use intensity
Ecology Letters 17(9): pp. 1168-1177.
Angol nyelvű összefoglaló: 

Pollinator declines have raised concerns about the persistence of plant species that depend on insect pollination, in particular by bees, for their reproduction. The impact of pollinator declines remains unknown for species-rich plant communities found in temperate seminatural grasslands. We investigated effects of land-use intensity in the surrounding landscape on the distribution of plant traits related to insect pollination in 239 European seminatural grasslands. Increasing arable land use in the surrounding landscape consistently reduced the density of plants depending on bee and insect pollination. Similarly, the relative abundance of bee-pollination-dependent plants increased with higher proportions of non-arable agricultural land (e.g. permanent grassland). This was paralleled by an overall increase in bee abundance and diversity. By isolating the impact of the surrounding landscape from effects of local habitat quality, we show for the first time that grassland plants dependent on insect pollination are particularly susceptible to increasing land-use intensity in the landscape.

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