Reproductive ecology of the endemic Lecocarpus pinnatifidus (Asteraceae) in an isolated population in the Galapagos Islands

Lecocarpus pinnatifidus is an endemic member of the Asteraceae occurring on only one island in the Galápagos archipelago. The capitula are large with female ray florets and male disc florets. They are self‐compatible but this study suggests fruit set is pollen limited. Visits from Xylocopa darwini a...

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Bibliographic Details
Published in:Botanical journal of the Linnean Society 2004-10, Vol.146 (2), p.171-180
Main Authors: Philipp, M, Hansen, L.B, Adsersen, H, Siegismund, H.R
Format: Article
Language:English
Subjects:
Asteraceae
florets
fruit set
indigenous species
Lecocarpus pinnatifidus
phenology
plant ecology
plant fertility
plant morphology
plant reproduction
pollen deposition
pollen limitation
pollinating insects
pollination
self-compatibility
selfing
Xylocopa
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Summary:Lecocarpus pinnatifidus is an endemic member of the Asteraceae occurring on only one island in the Galápagos archipelago. The capitula are large with female ray florets and male disc florets. They are self‐compatible but this study suggests fruit set is pollen limited. Visits from Xylocopa darwini and other larger insect pollinators are rare, and small insects seem to be the main pollinators. Small insects carry few pollen grains and most likely mediate self‐pollinations. Self‐compatibility and seed set after selfing are the most common reproductive strategy in the Galápagos Islands and L. pinnatifidus seemingly fits well into this group. © 2004 The Linnean Society of London, Botanical Journal of the Linnean Society, 2004, 146, 171–180.
ISSN:0024-4074
1095-8339
DOI:10.1111/j.1095-8339.2004.00323.x