Contrasted Impacts of Yellow Flag Iris (<i>Iris pseudacorus</i>) on Plant Diversity in Tidal Wetlands within Its Native and Invaded Distribution Ranges

We conducted an intercontinental biogeographic survey to analyze the effects of an invasive plant species in its native and invaded ranges. Our study system included tidal wetlands colonized by <i>Iris pseudacorus</i> L. (yellow flag iris, Iridaceae) along salinity gradients in two estua...

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Main Authors: Blanca Gallego-Tévar, Brenda J. Grewell, Christine R. Whitcraft, Joy C. Futrell, Gael Bárcenas-Moreno, Jesús M. Castillo
Format: Article
Language:English
Published: MDPI AG 2022-04-01
Series:Diversity
Subjects:
Online Access:https://www.mdpi.com/1424-2818/14/5/326
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author Blanca Gallego-Tévar
Brenda J. Grewell
Christine R. Whitcraft
Joy C. Futrell
Gael Bárcenas-Moreno
Jesús M. Castillo
author_facet Blanca Gallego-Tévar
Brenda J. Grewell
Christine R. Whitcraft
Joy C. Futrell
Gael Bárcenas-Moreno
Jesús M. Castillo
author_sort Blanca Gallego-Tévar
collection DOAJ
description We conducted an intercontinental biogeographic survey to analyze the effects of an invasive plant species in its native and invaded ranges. Our study system included tidal wetlands colonized by <i>Iris pseudacorus</i> L. (yellow flag iris, Iridaceae) along salinity gradients in two estuaries in its native European (Guadalquivir Estuary) and invaded North American (San Francisco Bay-Delta Estuary) ranges. We hypothesized <i>I. pseudacorus</i> would impart more negative community-level impacts on plant species diversity in the invaded range compared to the native range. Our results show that the colonization of <i>Iris pseudacorus</i> has very different effects on the diversity of tidal plant communities in its native and invaded ranges. In the native range, <i>I. pseudacorus</i> promoted plant diversity by increasing evenness and species richness. On the contrary, <i>I. pseudacorus</i> greatly reduced plant diversity in the invaded range, being this reduction higher in those communities with higher species richness and diversity levels. In view of these results, urgent management practices are needed to control and eradicate <i>I. pseudacorus</i> from the inland Sacramento-San Joaquin Delta Estuary since this invasive macrophyte is reducing plant diversity at local and landscape scales.
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spelling doaj.art-41b73e3f8e484f4ab2a25fb9b3a0413c2023-11-23T10:42:32ZengMDPI AGDiversity1424-28182022-04-0114532610.3390/d14050326Contrasted Impacts of Yellow Flag Iris (<i>Iris pseudacorus</i>) on Plant Diversity in Tidal Wetlands within Its Native and Invaded Distribution RangesBlanca Gallego-Tévar0Brenda J. Grewell1Christine R. Whitcraft2Joy C. Futrell3Gael Bárcenas-Moreno4Jesús M. Castillo5Departamento de Biología Vegetal y Ecología, Universidad de Sevilla, Ap 1095, 41080 Sevilla, SpainUSDA-ARS Invasive Species and Pollinator Health Research Unit, Department of Plant Sciences MS-4, University of California, Davis, CA 95616, USADepartment of Biological Sciences, California State University Long Beach, 1250 Bellflower Blvd., Long Beach, CA 90840, USAUSDA-ARS Invasive Species and Pollinator Health Research Unit, Department of Plant Sciences MS-4, University of California, Davis, CA 95616, USADepartamento de Cristalografía, Mineralogía y Química Agrícola, Universidad de Sevilla, 41012 Sevilla, SpainDepartamento de Biología Vegetal y Ecología, Universidad de Sevilla, Ap 1095, 41080 Sevilla, SpainWe conducted an intercontinental biogeographic survey to analyze the effects of an invasive plant species in its native and invaded ranges. Our study system included tidal wetlands colonized by <i>Iris pseudacorus</i> L. (yellow flag iris, Iridaceae) along salinity gradients in two estuaries in its native European (Guadalquivir Estuary) and invaded North American (San Francisco Bay-Delta Estuary) ranges. We hypothesized <i>I. pseudacorus</i> would impart more negative community-level impacts on plant species diversity in the invaded range compared to the native range. Our results show that the colonization of <i>Iris pseudacorus</i> has very different effects on the diversity of tidal plant communities in its native and invaded ranges. In the native range, <i>I. pseudacorus</i> promoted plant diversity by increasing evenness and species richness. On the contrary, <i>I. pseudacorus</i> greatly reduced plant diversity in the invaded range, being this reduction higher in those communities with higher species richness and diversity levels. In view of these results, urgent management practices are needed to control and eradicate <i>I. pseudacorus</i> from the inland Sacramento-San Joaquin Delta Estuary since this invasive macrophyte is reducing plant diversity at local and landscape scales.https://www.mdpi.com/1424-2818/14/5/326biodiversityestuaryevennessGuadalquivir River<i>Iris pseudacorus</i>invasive species
spellingShingle Blanca Gallego-Tévar
Brenda J. Grewell
Christine R. Whitcraft
Joy C. Futrell
Gael Bárcenas-Moreno
Jesús M. Castillo
Contrasted Impacts of Yellow Flag Iris (<i>Iris pseudacorus</i>) on Plant Diversity in Tidal Wetlands within Its Native and Invaded Distribution Ranges
Diversity
biodiversity
estuary
evenness
Guadalquivir River
<i>Iris pseudacorus</i>
invasive species
title Contrasted Impacts of Yellow Flag Iris (<i>Iris pseudacorus</i>) on Plant Diversity in Tidal Wetlands within Its Native and Invaded Distribution Ranges
title_full Contrasted Impacts of Yellow Flag Iris (<i>Iris pseudacorus</i>) on Plant Diversity in Tidal Wetlands within Its Native and Invaded Distribution Ranges
title_fullStr Contrasted Impacts of Yellow Flag Iris (<i>Iris pseudacorus</i>) on Plant Diversity in Tidal Wetlands within Its Native and Invaded Distribution Ranges
title_full_unstemmed Contrasted Impacts of Yellow Flag Iris (<i>Iris pseudacorus</i>) on Plant Diversity in Tidal Wetlands within Its Native and Invaded Distribution Ranges
title_short Contrasted Impacts of Yellow Flag Iris (<i>Iris pseudacorus</i>) on Plant Diversity in Tidal Wetlands within Its Native and Invaded Distribution Ranges
title_sort contrasted impacts of yellow flag iris i iris pseudacorus i on plant diversity in tidal wetlands within its native and invaded distribution ranges
topic biodiversity
estuary
evenness
Guadalquivir River
<i>Iris pseudacorus</i>
invasive species
url https://www.mdpi.com/1424-2818/14/5/326
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