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Evolution of mutualism in plant-pollinator interactions on islands
- Ken Inoue
- Environmental ScienceJournal of Biosciences
- 1 December 1993
Plants depending strongly on bumblebee pollination are absent on Izu Islands, but those depending on varied pollinators including bumblebees display smaller flower sizes and accommodate smaller pollinators than their mainland counterparts.
Life history and demographic features of Aster kantoensis, an endangered local endemic of floodplains
Flowering Phenology, Pollination, and Fruit Set of Cypripedium macranthos var. rebunense, a Threatened Lady's Slipper (Orchidaceae)
The need for less human interference and for preservation of the interactions between lady's slipper and its pollinator or other plant species with floral rewards is stressed.
Evolution of Campanula Flowers in Relation to Insect Pollinators on Islands
Since Darwin’s observations on the biota of the Galapagos, the evolution of island plants has attracted the attention of many investigators (Carlquist, 1974). Adaptive radiation of organisms on…
Aster kantoensis Kitam., an endangered flood plain endemic plant in Japan: Its ability to form persistent soil seed banks
MECHANISM OF SELECTION FAVORING A WIDE TUBULAR COROLLA IN CAMPANULA PUNCTATA
- Shiro Kobayashi, Ken Inoue, Masahiro Kato
- Environmental ScienceEvolution; international journal of organic…
- 1 June 1999
Investigation of Campanula punctata pollinated by Bombus diversus revealed that the advantage of a wide corolla to the male is independent of the corolla width of pollen recipients, indicating that the position of pollen deposited on Bombus may not be an important factor for selection.
Return from the lost: rediscovery of the presumed extinct "Leptosolena" (Zingiberaceae) in the Philippines and its phylogenetic placement in gingers
Evidence of pollen transfer efficiency as the natural selection factor favoring a large corolla of Campanula punctata pollinated by Bombus diversus
It is shown, for the first time, that a wide corolla serves a reproductive function of enhancing pollen transfer efficiency (ratio of male RS to pollen removal), and several mechanisms are proposed to explain how this selection factor is exerted on C. punctata corollas.
Genetic diversity and hierarchical population structure of a rare autotetraploid plant, Aster kantoensis (Asteraceae)
There was no significant correlation between the actual population size and three genetic diversity parameters, suggesting that the effective population size was very small even for the large populations, and gene flow between river systems is small, especially between the Kinu River system and Tama or Sagami River systems.
Different responses of pollinating bees to size variation and sexual phases in flowers ofCampanula
This study indicates that pollinator attraction could not solely explain the evolution of the flower size inCampanula, and that other factors such as pollen transfer efficiency, should be considered.