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231224s2013 xx |||||o 00| ||eng c |
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|a 10.1111/nph.12023
|2 doi
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|a pubmed24n0742.xml
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|a eng
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|a Carmona, Diego
|e verfasserin
|4 aut
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|a Herbivores can select for mixed defensive strategies in plants
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|c 2013
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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
|b cr
|2 rdacarrier
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|a Date Completed 21.05.2013
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|a Date Revised 20.04.2021
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|a published: Print-Electronic
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|a CommentIn: New Phytol. 2013 Jan;197(2):359-61. - PMID 23253329
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|a Citation Status MEDLINE
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|a © 2012 The Authors. New Phytologist © 2012 New Phytologist Trust.
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|a Resistance and tolerance are the most important defense mechanisms against herbivores. Initial theoretical studies considered both mechanisms functionally redundant, but more recent empirical studies suggest that these mechanisms may complement each other, favoring the presence of mixed defense patterns. However, the expectation of redundancy between tolerance and resistance remains unsupported. In this study, we tested this assumption following an ecological genetics field experiment in which the presence/absence of two herbivores (Lema daturaphila and Epitrix parvula) of Datura stramonium were manipulated. In each of three treatments, genotypic selection analyses were performed and selection patterns compared. Our results indicated that selection on resistance and tolerance was significantly different between the two folivores. Tolerance and resistance are not redundant defense strategies in D. stramonium but instead functioned as complementary defenses against both beetle species, favoring the evolution of a mixed defense strategy. Although each herbivore was selected for different defense strategies, the observed average tolerance and resistance were closer to the adaptive peak predicted against E. parvula and both beetles together. In our experimental population, natural selection imposed by herbivores can favor the evolution of mixed defense strategies in plants, accounting for the presence of intermediate levels of tolerance and resistance
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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1 |
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|a Fornoni, Juan
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t The New phytologist
|d 1979
|g 197(2013), 2 vom: 21. Jan., Seite 576-585
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|x 1469-8137
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|g volume:197
|g year:2013
|g number:2
|g day:21
|g month:01
|g pages:576-585
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|u http://dx.doi.org/10.1111/nph.12023
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