The alien invasive yellow flag ( Iris pseudacorus L.) in Argentinian wetlands: assessing geographical distribution throu
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The alien invasive yellow flag (Iris pseudacorus L.) in Argentinian wetlands: assessing geographical distribution through different data sources Paula Gervazoni . Alejandro Sosa . Celeste Franceschini . Julie Coetzee . Ana Faltlhauser . Daniela Fuentes-Rodriguez . Agustina Martı´nez . Martin Hill
Received: 6 October 2019 / Accepted: 31 July 2020 Ó Springer Nature Switzerland AG 2020
Abstract The yellow flag, Iris pseudacorus L. (Iridaceae) is an emergent perennial wetland plant native to the Palearctic region and has been dispersed worldwide as an ornamental plant. In the introduced range, it is highly invasive in natural and artificial waterbodies. Currently, this species is difficult to manage and continues to spread, causing significant environmental impacts. The aims of this study were to assess the geographical range of I. pseudacorus in Argentina by compiling data from literature, collections, citizen science and field surveys. An exhaustive review of herbarium collections and literature was conducted and a database with reports obtained through citizen science was obtained and used to design routes for field surveys. 114 records of I.
pseudacorus were obtained, mainly in humid and disturbed areas. The oldest records date from 1931 and 1933, and the number of reported localities showed a gradual increase with time. Fifteen records of the weed were from protected areas, four of which have international conservation status. This study shows that I. pseudacorus is increasing in distribution in Argentina and that citizen science can be used to document the distribution of invasive alien plant species. Taking into account that the number of records obtained from herbarium collections was greater than the number of records from literature, this study shows the value of these as database that allows historical reconstructions. This study is part of a collaborative ‘‘Global South’’ alliance between
P. Gervazoni (&) C. Franceschini D. Fuentes-Rodriguez Laboratorio de Herbivorı´a y Control Biolo´gico en Humedales (HeCoB), Centro de Ecologı´a Aplicada del Litoral (CECOAL-CONICET-UNNE), Corrientes, Argentina e-mail: [email protected]
J. Coetzee Botany Department, Centre for Biological Control, Rhodes University, Grahamstown, South Africa
P. Gervazoni A. Sosa C. Franceschini A. Faltlhauser D. Fuentes-Rodriguez A. Martı´nez Consejo Nacional de Investigaciones Cientı´ficas y Te´cnicas (CONICET), Ciudad Auto´noma de Buenos Aires, Argentina
M. Hill Department of Zoology and Entomology, Centre for Biological Control, Rhodes University, Grahamstown, South Africa
A. Martı´nez Instituto de Bota´nica Darwinion, San Isidro, Buenos Aires, Argentina
A. Sosa A. Faltlhauser Fundacio´n para el Estudio de Especies Invasivas (FuEDEI), Hurlingham, Buenos Aires, Argentina
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P. Gervazoni et al.
Argentina, South Africa and New Zealand, determining the extent of I. pseudacorus invasion in the southern hemisphere and generating management strateg
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