Dauber, J., Biesmeijer, J. C., Gabriel, D., Kunin, W. E., Lamborn, E., Meyer, B., Nielsen, A., Potts, S. G., Roberts, S. P., Sõber, V., Settele, J., Steffan-Dewenter, I., Teder, T. and Tscheulin, T.
Effects of patch size and density on flower visitation and seed set of wild plants: a pan-European approach.
Journal of Ecology, 98 (1).
To link to this article DOI: 10.1111/j.1365-2745.2009.01590.x
1. Habitat fragmentation can affect pollinator and plant population structure in terms of species
composition, abundance, area covered and density of flowering plants. This, in turn, may affect pollinator
visitation frequency, pollen deposition, seed set and plant fitness.
2. A reduction in the quantity of flower visits can be coupled with a reduction in the quality of pollination
service and hence the plants’ overall reproductive success and long-term survival. Understanding
the relationship between plant population size and⁄ or isolation and pollination limitation
is of fundamental importance for plant conservation.
3. Weexamined flower visitation and seed set of 10 different plant species fromfive European countries
to investigate the general effects of plant populations size and density, both within (patch level)
and between populations (population level), on seed set and pollination limitation.
4. Wefound evidence that the effects of area and density of flowering plant assemblages were generally
more pronounced at the patch level than at the population level. We also found that patch and
population level together influenced flower visitation and seed set, and the latter increased with
increasing patch area and density, but this effect was only apparent in small populations.
5. Synthesis. By using an extensive pan-European data set on flower visitation and seed set we have
identified a general pattern in the interplay between the attractiveness of flowering plant patches for
pollinators and density dependence of flower visitation, and also a strong plant species-specific
response to habitat fragmentation effects. This can guide efforts to conserve plant–pollinator interactions,
ecosystem functioning and plant fitness in fragmented habitats.
|Date Deposited:||13 Jul 2010 13:54|
|Last Modified:||21 Oct 2013 18:43|
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