Fine-scale genetic structure in the orchid Gymnadenia conopsea is not associated with local density of flowering plants.

Abstract excerpt

PREMISE: Density-dependent pollinator visitation can lead to density-dependent mating patterns and within-population genetic structure. In Gymnadenia conopsea, individuals in low-density patches receive more self pollen than individuals in high-density patches, suggesting higher relatedness at low density. Ongoing fragmentation is also expected to cause more local matings, potentially leading to biparental...

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