Success of an exotic snail Physella acuta in anthropogenically impacted Patagonian streams

The expansion of exotic species is one of the greatest threats to biodiversity and is a significant component of global change that occurs at increasing rates due to the removal of natural barriers and the global transport of species. The snail Physella acuta, has expanded into numerous aquatic envi...

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Autores principales:	Brand, Cecilia, Assef, Yanina Andrea, Miserendino, María Laura, Acosta, Florencia Suyay
Formato:	Articulo
Lenguaje:	Inglés
Publicado:	2024
Materias:	Zoología Biología stream pollution benthic communities exotic species Patagonia Contaminación comunidades bentónicas especies exóticas
Acceso en línea:	http://sedici.unlp.edu.ar/handle/10915/176866
Aporte de:	SEDICI (UNLP) de Universidad Nacional de La Plata

id	I19-R120-10915-176866
record_format	dspace
spelling	I19-R120-10915-1768662025-02-24T20:04:54Z http://sedici.unlp.edu.ar/handle/10915/176866 Success of an exotic snail Physella acuta in anthropogenically impacted Patagonian streams Establecimiento del caracol exótico Physella acuta en ambientes impactados por actividades antrópicas en arroyos patagónicos Brand, Cecilia Assef, Yanina Andrea Miserendino, María Laura Acosta, Florencia Suyay 2024-12-10 2025-02-24T17:20:43Z en Zoología Biología stream pollution benthic communities exotic species Patagonia Contaminación comunidades bentónicas especies exóticas The expansion of exotic species is one of the greatest threats to biodiversity and is a significant component of global change that occurs at increasing rates due to the removal of natural barriers and the global transport of species. The snail Physella acuta, has expanded into numerous aquatic environments worldwide, given a set of traits that allows the species to thrive in new and harsh environments. This study documents changes in the composition and structure of the malacofauna and examines the presence of established and expanding populations of P. acuta in the Esquel-Percy basin (Patagonia, Argentina), which has been altered by wastewater treatment plants discharges (WWTPs). The population density of P. acuta in the studied area increased from less than 15 ind/m2 in 2005 to 1800 ind/m² in 2016-2017. This species was the dominant mollusk at the two post-urban sites, under poor environmental conditions. Understanding the introduction pathways of exotic species to prevent and control their establishment and spread is essential since biological invasions constitute a major threat to freshwater ecosystems. La expansión de especies exóticas es a la vez consecuencia y motor del cambio global y constituye una de las mayores amenazas a la biodiversidad, sucede principalmente por la desaparición de barreras naturales al transporte de especies a escala mundial. El gasterópodo Physella acuta ha expandido su distribución a un gran número de ambientes acuáticos en todo el mundo gracias a rasgos ecológicos que le permiten dispersarse eficientemente y reproducirse en condiciones desfavorables. Este estudio documenta cambios en la composición y estructura de la malacofauna, y examina la presencia de poblaciones establecidas y en expansión de P. acuta en la cuenca de los ríos Esquel y Percy (Patagonia, Argentina), caracterizada por la presencia de plantas de tratamiento de líquidos cloacales. La densidad poblacional de P. acuta ha aumentado de menos de 15 ind/m2, en el año 2005, hasta 1800 ind/m2 en el período 2016-2017. Esta especie es el molusco dominante en los dos sitios post-urbanos de la cuenca, que presentan las peores condiciones ambientales. La comprensión de las vías de introducción de especies exóticas es esencial para prevenir y controlar su establecimiento y posterior expansión, dado el peligro que representan las especies exóticas para los ecosistemas acuáticos. Instituto de Limnología "Dr. Raúl A. Ringuelet" Articulo Articulo http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) application/pdf
institution	Universidad Nacional de La Plata
institution_str	I-19
repository_str	R-120
collection	SEDICI (UNLP)
language	Inglés
topic	Zoología Biología stream pollution benthic communities exotic species Patagonia Contaminación comunidades bentónicas especies exóticas
spellingShingle	Zoología Biología stream pollution benthic communities exotic species Patagonia Contaminación comunidades bentónicas especies exóticas Brand, Cecilia Assef, Yanina Andrea Miserendino, María Laura Acosta, Florencia Suyay Success of an exotic snail Physella acuta in anthropogenically impacted Patagonian streams
topic_facet	Zoología Biología stream pollution benthic communities exotic species Patagonia Contaminación comunidades bentónicas especies exóticas
description	The expansion of exotic species is one of the greatest threats to biodiversity and is a significant component of global change that occurs at increasing rates due to the removal of natural barriers and the global transport of species. The snail Physella acuta, has expanded into numerous aquatic environments worldwide, given a set of traits that allows the species to thrive in new and harsh environments. This study documents changes in the composition and structure of the malacofauna and examines the presence of established and expanding populations of P. acuta in the Esquel-Percy basin (Patagonia, Argentina), which has been altered by wastewater treatment plants discharges (WWTPs). The population density of P. acuta in the studied area increased from less than 15 ind/m2 in 2005 to 1800 ind/m² in 2016-2017. This species was the dominant mollusk at the two post-urban sites, under poor environmental conditions. Understanding the introduction pathways of exotic species to prevent and control their establishment and spread is essential since biological invasions constitute a major threat to freshwater ecosystems.
format	Articulo Articulo
author	Brand, Cecilia Assef, Yanina Andrea Miserendino, María Laura Acosta, Florencia Suyay
author_facet	Brand, Cecilia Assef, Yanina Andrea Miserendino, María Laura Acosta, Florencia Suyay
author_sort	Brand, Cecilia
title	Success of an exotic snail Physella acuta in anthropogenically impacted Patagonian streams
title_short	Success of an exotic snail Physella acuta in anthropogenically impacted Patagonian streams
title_full	Success of an exotic snail Physella acuta in anthropogenically impacted Patagonian streams
title_fullStr	Success of an exotic snail Physella acuta in anthropogenically impacted Patagonian streams
title_full_unstemmed	Success of an exotic snail Physella acuta in anthropogenically impacted Patagonian streams
title_sort	success of an exotic snail physella acuta in anthropogenically impacted patagonian streams
publishDate	2024
url	http://sedici.unlp.edu.ar/handle/10915/176866
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Success of an exotic snail Physella acuta in anthropogenically impacted Patagonian streams

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