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231224s2017 xx |||||o 00| ||eng c |
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|a 10.1111/nph.14479
|2 doi
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|a pubmed24n0897.xml
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|a (NLM)28240377
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|a DE-627
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|c DE-627
|e rakwb
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|a eng
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|a Trunschke, Judith
|e verfasserin
|4 aut
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|a Interaction intensity and pollinator-mediated selection
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|c 2017
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
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|a Date Completed 16.02.2018
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|a Date Revised 30.09.2020
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|a published: Print-Electronic
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|a CommentIn: New Phytol. 2017 May;214(3):909-912. - PMID 28397359
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|a Citation Status MEDLINE
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|a © 2017 The Authors. New Phytologist © 2017 New Phytologist Trust.
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|a In animal-pollinated plants, the opportunity for selection and the strength of pollinator-mediated selection are expected to increase with the degree of pollen limitation. However, whether differences in pollen limitation can explain variation in pollinator-mediated and net selection among animal-pollinated species is poorly understood. In the present study, we quantified pollen limitation, variance in relative fitness and pollinator-mediated selection on five traits important for pollinator attraction (flowering start, plant height, flower number, flower size) and pollination efficiency (spur length) in natural populations of 12 orchid species. Pollinator-mediated selection was quantified by subtracting estimates of selection gradients for plants receiving supplemental hand-pollination from estimates obtained for open-pollinated control plants. Mean pollen limitation ranged from zero to 0.96. Opportunity for selection, pollinator-mediated selection and net selection were all positively related to pollen limitation, whereas nonpollinator-mediated selection was not. Opportunity for selection varied five-fold, strength of pollinator-mediated selection varied three-fold and net selection varied 1.5-fold among species. Supplemental hand-pollination reduced both opportunity for selection and selection on floral traits. The results show that the intensity of biotic interactions is an important determinant of the selection regime, and indicate that the potential for pollinator-mediated selection and divergence in floral traits is particularly high in species that are strongly pollen-limited
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|a Journal Article
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|a Orchidaceae
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| 650 |
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|a biotic interactions
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|a natural selection
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|a opportunity for selection
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| 650 |
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4 |
|a pollen limitation
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| 650 |
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|a pollinator-mediated selection
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| 700 |
1 |
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|a Sletvold, Nina
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Ågren, Jon
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t The New phytologist
|d 1979
|g 214(2017), 3 vom: 27. Mai, Seite 1381-1389
|w (DE-627)NLM09818248X
|x 1469-8137
|7 nnns
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| 773 |
1 |
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|g volume:214
|g year:2017
|g number:3
|g day:27
|g month:05
|g pages:1381-1389
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|u http://dx.doi.org/10.1111/nph.14479
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