Data from: Induced defences alter the strength and direction of natural selection on reproductive traits in common milkweed

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Thompson, Ken A.; Cory, Kaitlin A.; Johnson, Marc T.J., 2017, "Data from: Induced defences alter the strength and direction of natural selection on reproductive traits in common milkweed", https://doi.org/10.5683/SP2/TCHJSR, Borealis, V1
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Abstract
Evolutionary biologists have long sought to understand the ecological processes that generate plant reproductive diversity. Recent evidence indicates that constitutive antiherbivore defences can alter natural selection on reproductive traits, but it is unclear whether induced defences will have the same effect and whether reduced foliar damage in defended plants is the cause of this pattern. In a factorial field experiment using common milkweed, Asclepias syriaca L., we induced plant defences using jasmonic acid (JA) and imposed foliar damage using scissors. We found that JA-induced plants experienced selection for more inflorescences that were smaller in size (fewer flowers), whereas control plants only experienced a trend towards selection for larger inflorescences (more flowers); all effects were independent of foliar damage. Our results demonstrate that induced defences can alter both the strength and direction of selection on reproductive traits, and suggest that antiherbivore defences may promote the evolution of plant reproductive diversity. (2020-06-30)
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Master ZIP file containing data, analysis script, and metadata.This .ZIP file contains data (.csv) for each milkweed plant included in the experiment, with information about treatments and measurements. It also includes analysis script (.R), and a readme file (.txt) containing metadata.Thompson_etal_2017-MasterFile.zip
Dataset only (.csv)Download only the data2016-03-01-DFE_Data_CSV.csv
Analysis script only (.R)Download only the R script.2017-01-24-DFE_R-SCRIPT.R
(2020-06-30)
Subject Other
Keyword Anthropocene, Display size, floral traits, induced resistance, induced response, Asclepias syriaca L., phenotypic selection, milkweed, Holocene
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This .ZIP file contains data (.csv) for each milkweed plant included in the experiment, with information about treatments and measurements. It also includes analysis script (.R), and a readme file (.txt) containing metadata.
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This .ZIP file contains data (.csv) for each milkweed plant included in the experiment, with information about treatments and measurements. It also includes analysis script (.R), and a readme file (.txt) containing metadata.
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