Phenotypic clines in herbivore resistance and reproductive traits in wild plants along an agricultural gradient.

The conversion of natural landscapes to agriculture is a leading cause of biodiversity loss worldwide. While many studies examine how landscape modification affects species diversity, a trait-based approach can provide new insights into species responses to environmental change. Wild plants persisti...

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Main Authors: Hayley Schroeder, Heather Grab, Katja Poveda
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2023-01-01
Series:PLoS ONE
Online Access:https://doi.org/10.1371/journal.pone.0286050
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author Hayley Schroeder
Heather Grab
Katja Poveda
author_facet Hayley Schroeder
Heather Grab
Katja Poveda
author_sort Hayley Schroeder
collection DOAJ
description The conversion of natural landscapes to agriculture is a leading cause of biodiversity loss worldwide. While many studies examine how landscape modification affects species diversity, a trait-based approach can provide new insights into species responses to environmental change. Wild plants persisting in heavily modified landscapes provide a unique opportunity to examine species' responses to land use change. Trait expression within a community plays an important role in structuring species interactions, highlighting the potential implications of landscape mediated trait changes on ecosystem functioning. Here we test the effect of increasing agricultural landscape modification on defensive and reproductive traits in three commonly occurring Brassicaceae species to evaluate plant responses to landscape change. We collected seeds from populations at spatially separated sites with variation in surrounding agricultural land cover and grew them in a greenhouse common garden, measuring defensive traits through an herbivore no-choice bioassay as well as reproductive traits such as flower size and seed set. In two of the three species, plants originating from agriculturally dominant landscapes expressed a consistent reduction in flower size and herbivore leaf consumption. One species also showed reduced fitness associated with increasingly agricultural landscapes. These findings demonstrate that wild plants are responding to landscape modification, suggesting that the conversion of natural landscapes to agriculture has consequences for wild plant evolution.
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spelling doaj.art-f9b854279c234d02956d85cc36c772f32023-06-17T05:31:57ZengPublic Library of Science (PLoS)PLoS ONE1932-62032023-01-01185e028605010.1371/journal.pone.0286050Phenotypic clines in herbivore resistance and reproductive traits in wild plants along an agricultural gradient.Hayley SchroederHeather GrabKatja PovedaThe conversion of natural landscapes to agriculture is a leading cause of biodiversity loss worldwide. While many studies examine how landscape modification affects species diversity, a trait-based approach can provide new insights into species responses to environmental change. Wild plants persisting in heavily modified landscapes provide a unique opportunity to examine species' responses to land use change. Trait expression within a community plays an important role in structuring species interactions, highlighting the potential implications of landscape mediated trait changes on ecosystem functioning. Here we test the effect of increasing agricultural landscape modification on defensive and reproductive traits in three commonly occurring Brassicaceae species to evaluate plant responses to landscape change. We collected seeds from populations at spatially separated sites with variation in surrounding agricultural land cover and grew them in a greenhouse common garden, measuring defensive traits through an herbivore no-choice bioassay as well as reproductive traits such as flower size and seed set. In two of the three species, plants originating from agriculturally dominant landscapes expressed a consistent reduction in flower size and herbivore leaf consumption. One species also showed reduced fitness associated with increasingly agricultural landscapes. These findings demonstrate that wild plants are responding to landscape modification, suggesting that the conversion of natural landscapes to agriculture has consequences for wild plant evolution.https://doi.org/10.1371/journal.pone.0286050
spellingShingle Hayley Schroeder
Heather Grab
Katja Poveda
Phenotypic clines in herbivore resistance and reproductive traits in wild plants along an agricultural gradient.
PLoS ONE
title Phenotypic clines in herbivore resistance and reproductive traits in wild plants along an agricultural gradient.
title_full Phenotypic clines in herbivore resistance and reproductive traits in wild plants along an agricultural gradient.
title_fullStr Phenotypic clines in herbivore resistance and reproductive traits in wild plants along an agricultural gradient.
title_full_unstemmed Phenotypic clines in herbivore resistance and reproductive traits in wild plants along an agricultural gradient.
title_short Phenotypic clines in herbivore resistance and reproductive traits in wild plants along an agricultural gradient.
title_sort phenotypic clines in herbivore resistance and reproductive traits in wild plants along an agricultural gradient
url https://doi.org/10.1371/journal.pone.0286050
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AT katjapoveda phenotypicclinesinherbivoreresistanceandreproductivetraitsinwildplantsalonganagriculturalgradient