Testing strength of biotic resistance against an introduced fish: inter-specific competition or predation through facultative piscivory?

Biotic resistance is the process where aspects of the receiving environment inhibit the establishment and invasion of an introduced species. Resistance against an introduced fish can be through strong competition and/or predation from resident fishes. Here, the biotic resistance against introduced t...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autor principal:	J Robert Britton
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2012
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/12e097dd31f54061b56d7154379eeadc
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:12e097dd31f54061b56d7154379eeadc
record_format	dspace
spelling	oai:doaj.org-article:12e097dd31f54061b56d7154379eeadc2021-11-18T07:27:29ZTesting strength of biotic resistance against an introduced fish: inter-specific competition or predation through facultative piscivory?1932-620310.1371/journal.pone.0031707https://doaj.org/article/12e097dd31f54061b56d7154379eeadc2012-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/22363711/pdf/?tool=EBIhttps://doaj.org/toc/1932-6203Biotic resistance is the process where aspects of the receiving environment inhibit the establishment and invasion of an introduced species. Resistance against an introduced fish can be through strong competition and/or predation from resident fishes. Here, the biotic resistance against introduced topmouth gudgeon Pseudorasbora parva (a highly invasive fish in Europe) by resident carp Cyprinus carpio was tested in experimental mesocosms. The introduction scenario was six adult P. parva (three male, three female) on a single occasion. Resistance to their establishment was provided by three and six resident C. carpio whose effects on P. parva growth and reproduction were compared to a Control (no resident fish at the time of introduction) and treatments containing three and six P. parva. After 120 days, the growth rates of the introduced P. parva were significantly depressed in C. carpio presence and in mesocosms with three C. carpio present, significantly decreased numbers of 0+P. parva were recorded. Where six C. carpio were present, no 0+P. parva were recorded, indicating resistance strength increased with carp abundance. In contrast, there were no differences in P. parva reproduction and growth rates between the Control and treatments containing conspecifics. Stable isotope analysis (δ(15)N, δ(13)C) revealed C. carpio were feeding at one trophic level above 0+P. parva, suggesting the process of resistance was predation (facultative piscivory) rather than competition. Thus, if P. parva are to establish and invade following an introduction, they must overcome this biotic resistance from cyprinid fishes such as C. carpio.J Robert BrittonPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 7, Iss 2, p e31707 (2012)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q J Robert Britton Testing strength of biotic resistance against an introduced fish: inter-specific competition or predation through facultative piscivory?
description	Biotic resistance is the process where aspects of the receiving environment inhibit the establishment and invasion of an introduced species. Resistance against an introduced fish can be through strong competition and/or predation from resident fishes. Here, the biotic resistance against introduced topmouth gudgeon Pseudorasbora parva (a highly invasive fish in Europe) by resident carp Cyprinus carpio was tested in experimental mesocosms. The introduction scenario was six adult P. parva (three male, three female) on a single occasion. Resistance to their establishment was provided by three and six resident C. carpio whose effects on P. parva growth and reproduction were compared to a Control (no resident fish at the time of introduction) and treatments containing three and six P. parva. After 120 days, the growth rates of the introduced P. parva were significantly depressed in C. carpio presence and in mesocosms with three C. carpio present, significantly decreased numbers of 0+P. parva were recorded. Where six C. carpio were present, no 0+P. parva were recorded, indicating resistance strength increased with carp abundance. In contrast, there were no differences in P. parva reproduction and growth rates between the Control and treatments containing conspecifics. Stable isotope analysis (δ(15)N, δ(13)C) revealed C. carpio were feeding at one trophic level above 0+P. parva, suggesting the process of resistance was predation (facultative piscivory) rather than competition. Thus, if P. parva are to establish and invade following an introduction, they must overcome this biotic resistance from cyprinid fishes such as C. carpio.
format	article
author	J Robert Britton
author_facet	J Robert Britton
author_sort	J Robert Britton
title	Testing strength of biotic resistance against an introduced fish: inter-specific competition or predation through facultative piscivory?
title_short	Testing strength of biotic resistance against an introduced fish: inter-specific competition or predation through facultative piscivory?
title_full	Testing strength of biotic resistance against an introduced fish: inter-specific competition or predation through facultative piscivory?
title_fullStr	Testing strength of biotic resistance against an introduced fish: inter-specific competition or predation through facultative piscivory?
title_full_unstemmed	Testing strength of biotic resistance against an introduced fish: inter-specific competition or predation through facultative piscivory?
title_sort	testing strength of biotic resistance against an introduced fish: inter-specific competition or predation through facultative piscivory?
publisher	Public Library of Science (PLoS)
publishDate	2012
url	https://doaj.org/article/12e097dd31f54061b56d7154379eeadc
work_keys_str_mv	AT jrobertbritton testingstrengthofbioticresistanceagainstanintroducedfishinterspecificcompetitionorpredationthroughfacultativepiscivory
_version_	1718423391741935616

Testing strength of biotic resistance against an introduced fish: inter-specific competition or predation through facultative piscivory?

Ejemplares similares