“Recent population genetic and phylogenetic investigations suggest gene-flow within subgeneric clades, but pollinator-mediated selection may maintain species-specific floral traits." https://t.co/L8ZR6soKvO
“Although some food deceptive orchids are isolated through postzygotic reproductive barriers, sexually deceptive orchids lack post-mating barriers and species isolation is achieved via specific pollinator attraction." https://t.co/L8ZR6sGlUo
“Pollination by deception, however, can reduce self-pollination and encourage pollen flow over longer distances, thus promoting outbreeding.” https://t.co/L8ZR6soKvO
“The evolution of obligate deception in orchids seems paradoxical in the light of the typically lower fruit set than in rewarding species." https://t.co/L8ZR6sGlUo
“Deceptive orchids often show high variability in floral signals, which may be maintained by negative frequency-dependent selection, since pollinators can learn and subsequently avoid common deceptive morphs more quickly than rare ones.” https://t.co/L8ZR6
“In some food deceptive orchids, similarities in the spectral reflectance visible to the pollinator in a model plant and its mimic, and increased reproductive success of the mimic in the presence of the model have been demonstrated." https://t.co/L8ZR6soKv