Alien fish in Neotropical reservoirs: Assessing multiple hypotheses in invasion biology

Invasive alien species are one of the main components of global ecological change, the second known cause of animal extinctions, and very costly in terms of ecosystem services. Invasive alien species and damming are two of the most impacting alterations in freshwater ecosystems, and understanding th...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Carolina M. Muniz, Emili García-Berthou, Maria Julia M. Ganassin, Angelo A. Agostinho, Luiz C. Gomes
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Biological invasions Biotic acceptance Damming Freshwater ecosystems Resource availability Land-use change Ecology QH540-549.5
Acceso en línea:	https://doaj.org/article/cf2f5f0242234a058c064d4cd2966a95
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:cf2f5f0242234a058c064d4cd2966a95
record_format	dspace
spelling	oai:doaj.org-article:cf2f5f0242234a058c064d4cd2966a952021-12-01T04:33:00ZAlien fish in Neotropical reservoirs: Assessing multiple hypotheses in invasion biology1470-160X10.1016/j.ecolind.2020.107034https://doaj.org/article/cf2f5f0242234a058c064d4cd2966a952021-02-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S1470160X20309730https://doaj.org/toc/1470-160XInvasive alien species are one of the main components of global ecological change, the second known cause of animal extinctions, and very costly in terms of ecosystem services. Invasive alien species and damming are two of the most impacting alterations in freshwater ecosystems, and understanding the processes that govern biological invasions in these habitats is of enormous conceptual and practical importance. About 39 competing and overlapping hypotheses have been proposed in invasion biology that have been recently grouped in four (or five) concept clusters, namely the: propagule, resource availability, biotic interaction and Darwin’s clusters. We analyzed the relative importance of three of these concept clusters in Neotropical fish assemblages, using data from 29 reservoirs and variation partitioning analyses. We show that alien fish assemblages respond to variation in limnological characteristics in a way similar than native species, usually with positive effects of increased temperature, conductivity and chlorophyll-a concentration and decreasing turbidity. Overall, we found support for some hypotheses included in resource availability and Darwin’s clusters, such as increased resource availability and biotic acceptance, and no evidence of strong biotic resistance, marked effects of human disturbance, as measured by land-use changes, or propagule/colonization pressures. We discuss the potential reasons and management implications of these findings. Our study illustrates that analyzing the importance of classical hypotheses of invasion biology in tropical freshwaters and other ecosystems enhances ecological understanding and provides practical implications to prioritize management interventions and mitigate ecological impacts.Carolina M. MunizEmili García-BerthouMaria Julia M. GanassinAngelo A. AgostinhoLuiz C. GomesElsevierarticleBiological invasionsBiotic acceptanceDammingFreshwater ecosystemsResource availabilityLand-use changeEcologyQH540-549.5ENEcological Indicators, Vol 121, Iss , Pp 107034- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Biological invasions Biotic acceptance Damming Freshwater ecosystems Resource availability Land-use change Ecology QH540-549.5
spellingShingle	Biological invasions Biotic acceptance Damming Freshwater ecosystems Resource availability Land-use change Ecology QH540-549.5 Carolina M. Muniz Emili García-Berthou Maria Julia M. Ganassin Angelo A. Agostinho Luiz C. Gomes Alien fish in Neotropical reservoirs: Assessing multiple hypotheses in invasion biology
description	Invasive alien species are one of the main components of global ecological change, the second known cause of animal extinctions, and very costly in terms of ecosystem services. Invasive alien species and damming are two of the most impacting alterations in freshwater ecosystems, and understanding the processes that govern biological invasions in these habitats is of enormous conceptual and practical importance. About 39 competing and overlapping hypotheses have been proposed in invasion biology that have been recently grouped in four (or five) concept clusters, namely the: propagule, resource availability, biotic interaction and Darwin’s clusters. We analyzed the relative importance of three of these concept clusters in Neotropical fish assemblages, using data from 29 reservoirs and variation partitioning analyses. We show that alien fish assemblages respond to variation in limnological characteristics in a way similar than native species, usually with positive effects of increased temperature, conductivity and chlorophyll-a concentration and decreasing turbidity. Overall, we found support for some hypotheses included in resource availability and Darwin’s clusters, such as increased resource availability and biotic acceptance, and no evidence of strong biotic resistance, marked effects of human disturbance, as measured by land-use changes, or propagule/colonization pressures. We discuss the potential reasons and management implications of these findings. Our study illustrates that analyzing the importance of classical hypotheses of invasion biology in tropical freshwaters and other ecosystems enhances ecological understanding and provides practical implications to prioritize management interventions and mitigate ecological impacts.
format	article
author	Carolina M. Muniz Emili García-Berthou Maria Julia M. Ganassin Angelo A. Agostinho Luiz C. Gomes
author_facet	Carolina M. Muniz Emili García-Berthou Maria Julia M. Ganassin Angelo A. Agostinho Luiz C. Gomes
author_sort	Carolina M. Muniz
title	Alien fish in Neotropical reservoirs: Assessing multiple hypotheses in invasion biology
title_short	Alien fish in Neotropical reservoirs: Assessing multiple hypotheses in invasion biology
title_full	Alien fish in Neotropical reservoirs: Assessing multiple hypotheses in invasion biology
title_fullStr	Alien fish in Neotropical reservoirs: Assessing multiple hypotheses in invasion biology
title_full_unstemmed	Alien fish in Neotropical reservoirs: Assessing multiple hypotheses in invasion biology
title_sort	alien fish in neotropical reservoirs: assessing multiple hypotheses in invasion biology
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/cf2f5f0242234a058c064d4cd2966a95
work_keys_str_mv	AT carolinammuniz alienfishinneotropicalreservoirsassessingmultiplehypothesesininvasionbiology AT emiligarciaberthou alienfishinneotropicalreservoirsassessingmultiplehypothesesininvasionbiology AT mariajuliamganassin alienfishinneotropicalreservoirsassessingmultiplehypothesesininvasionbiology AT angeloaagostinho alienfishinneotropicalreservoirsassessingmultiplehypothesesininvasionbiology AT luizcgomes alienfishinneotropicalreservoirsassessingmultiplehypothesesininvasionbiology
_version_	1718405870264516608

Alien fish in Neotropical reservoirs: Assessing multiple hypotheses in invasion biology

Ejemplares similares