Pollination and Predation Limit Fruit Set in a Shrub, Bourreria succulents (Boraginaceae), after Hurricanes on San Salvador Island, Bahamas 1
dc.contributor.author | Rathcke, Beverly J. | en_US |
dc.date.accessioned | 2010-06-01T22:45:14Z | |
dc.date.available | 2010-06-01T22:45:14Z | |
dc.date.issued | 2001-06 | en_US |
dc.identifier.citation | Rathcke, Beverly J. (2001). "Pollination and Predation Limit Fruit Set in a Shrub, Bourreria succulents (Boraginaceae), after Hurricanes on San Salvador Island, Bahamas 1 ." Biotropica 33(2): 330-338. <http://hdl.handle.net/2027.42/75721> | en_US |
dc.identifier.issn | 0006-3606 | en_US |
dc.identifier.issn | 1744-7429 | en_US |
dc.identifier.uri | https://hdl.handle.net/2027.42/75721 | |
dc.description.abstract | Hurricanes have been assumed to reduce the reproduction of plants, either directly by leaf stripping and stress or indirectly by reducing pollinators. I examined the pollination and fruit set of a common shrub, Bourreria succulenta , after hurricanes on San Salvador island, Bahamas. Contrary to the assumption of resource limitation, B. succulenta showed unusually prolific flowering after Hurricane Lili stripped leaves from most of the plants in October 1996. I predicted that the abundant flowering would saturate pollinators and that fruit set would be pollination-limited. Fruit set was strongly pollination-limited by 71 percent. Butterflies are probably the major pollinators and were present at the site, but they rarely visited B. succulenta flowers even though flowers were brimming with nectar. Nectarivorous birds (Bananaquits and Bahama Wbodstars) visit B. succulenta flowers, but their populations were decimated by Hurricane Lili and they rarely visited flowers during this time. Fruit set was also severely predation-limited; a moth caterpillar (Gelechiidae) was extremely abundant and ate buds, flowers, and fruits, causing a further 68 percent reduction in fruit set. Together, pollination limitation and predation limitation reduced fruit set to only 7 percent or less. Predation was also intense in 1999 after Hurricane Floyd and resulted in 11 percent fruit set or less. Whether or not hurricanes were the cause of limited pollinators or abundant predators, the resulting low fruit set could have population effects because hurricanes can provide opportunities for the recruitment of new plants. These results emphasize that understanding plant–animal interactions may be necessary for predicting the effects of hurricanes on plant reproductive success, which may affect subsequent recruitment. Species on small islands like San Salvador (150 km 2 ) with relatively few species may be especially vulnerable to environmental disturbances such as hurricanes. | en_US |
dc.format.extent | 770184 bytes | |
dc.format.extent | 3109 bytes | |
dc.format.mimetype | application/pdf | |
dc.format.mimetype | text/plain | |
dc.publisher | Blackwell Publishing Ltd | en_US |
dc.rights | 2001 The Association for Tropical Biology and Conservation Inc. | en_US |
dc.subject.other | Key Words: Bahamas | en_US |
dc.subject.other | Bourreria | en_US |
dc.subject.other | Flower Predation | en_US |
dc.subject.other | Fruit Predation | en_US |
dc.subject.other | Fruit Set | en_US |
dc.subject.other | Hurricane Effects | en_US |
dc.subject.other | Island Pollination | en_US |
dc.subject.other | Plant-animal Interactions | en_US |
dc.subject.other | Pollination Limitation | en_US |
dc.subject.other | Scrublands. | en_US |
dc.title | Pollination and Predation Limit Fruit Set in a Shrub, Bourreria succulents (Boraginaceae), after Hurricanes on San Salvador Island, Bahamas 1 | en_US |
dc.type | Article | en_US |
dc.subject.hlbsecondlevel | Ecology and Evolutionary Biology | en_US |
dc.subject.hlbtoplevel | Science | en_US |
dc.description.peerreviewed | Peer Reviewed | en_US |
dc.contributor.affiliationum | Department of Biology, University of Michigan, Ann Arbor, Michigan 48109-1048, U.S.A. | en_US |
dc.description.bitstreamurl | http://deepblue.lib.umich.edu/bitstream/2027.42/75721/1/j.1744-7429.2001.tb00184.x.pdf | |
dc.identifier.doi | 10.1111/j.1744-7429.2001.tb00184.x | en_US |
dc.identifier.source | Biotropica | en_US |
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dc.owningcollname | Interdisciplinary and Peer-Reviewed |
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