NDLI: Island biogeography as a test of reproductive interference

Content Provider	Springer Nature Link
Author	Takakura, Koh Ichi Fujii, Shinji
Copyright Year	2015
Abstract	Theoretical studies have predicted that reproductive interference must exclude either of the interacting species, but no testing of this prediction has ever been reported for natural populations. This study surveyed the distribution patterns of herbaceous Veronica plants, including one native and three alien species, to test whether the invasion of the alien species exerting reproductive interference excluded the native species. Results showed that the native species was repeatedly excluded from islands where an alien species invaded, exerting reproductive interference, and that other alien species had no significant effect on the native population survival. This survey also demonstrated that the native species altered its habitat from the ground to stone walls on the mainland where the alien species had been predominant. In the mainland populations, the fruit morphology differed from that of the islands, and the morphology in the mainland population seemed suitable for seed dispersion by ants at a stone wall habitat. We also surveyed the genetic differentiation among populations, the results of which did not support the native species genetically differentiated between mainland and island populations before the alien species invasion. These results strongly suggest that the reproductive interference excluded the recipient species at the population level and facilitated the habitat change. Additionally, results indicated that a series of field surveys of islands close to the mainland can be a powerful tool to test the ecological importance of reproductive interference.
Starting Page	307
Ending Page	319
Page Count	13
File Format	PDF
ISSN	14383896
Journal	Population Ecology
Volume Number	57
Issue Number	2
e-ISSN	1438390X
Language	English
Publisher	Springer Japan
Publisher Date	2015-06-04
Publisher Place	Tokyo
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Chasmophyte Competitive exclusion Habitat change Invasive species ISSR-PCR Myrmecochory Ecology Zoology Plant Sciences Evolutionary Biology Behavioral Sciences Forestry
Content Type	Text
Resource Type	Article
Subject	Ecology, Evolution, Behavior and Systematics

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