Data from: Mating patterns and pollinator mobility are critical traits in forest fragmentation genetics
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https://datadryad.org/dataset/doi:10.5061/dryad.g7j86
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资源简介:
Most woody plants are animal-pollinated, but the global problem of habitat
fragmentation is changing the pollination dynamics. Consequently, the
genetic diversity and fitness of the progeny of animal-pollinated woody
plants sired in fragmented landscapes tend to decline due to shifts in
plant-mating patterns (for example, reduced outcrossing rate, pollen
diversity). However, the magnitude of this mating-pattern shift should
theoretically be a function of pollinator mobility. We first test this
hypothesis by exploring the mating patterns of three ecologically
divergent eucalypts sampled across a habitat fragmentation gradient in
southern Australia. We demonstrate increased selfing and decreased pollen
diversity with increased fragmentation for two small-insect-pollinated
eucalypts, but no such relationship for the mobile-bird-pollinated
eucalypt. In a meta-analysis, we then show that fragmentation generally
does increase selfing rates and decrease pollen diversity, and that more
mobile pollinators tended to dampen these mating-pattern shifts. Together,
our findings support the premise that variation in pollinator form
contributes to the diversity of mating-pattern responses to habitat
fragmentation.
提供机构:
Dryad
创建时间:
2013-04-22



