Prey selectivity of the invasive largemouth bass towards native and non-native prey: an experimental approach
Autor(a) principal: | |
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Data de Publicação: | 2022 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Neotropical ichthyology (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252022000200209 |
Resumo: | Abstract Non-native predators are known to cause ecological impacts through heightened consumption of resources and decimation of native species. One such species is Micropterus salmoides. Often introduced for sport fishing worldwide; it has been listed by International Union for Conservation of Nature and Natural Resources as one of the 100 of the world’s worst invasive species. Whilst impacts conferred towards native prey are well known, its relationship with other non-native species has received much less attention. Therefore, the aim of this study was to experimentally investigate the feeding preference of M. salmoides towards native prey (Geophagus iporangensis) compared to non-native prey (Oreochromis niloticus and Coptodon rendalli) using comparative consumption and the Manly-Chesson selectivity index. We found a higher consumption by M. salmoides towards the non-native prey and a tendency for this non-native preference to increase when prey availability increased. Our results are in line with the hypothesis that the invasion of the non-native predator can be facilitated by the high abundance and reproductive rate of the non-native prey. This is relevant considering the interaction of multiple invaders in an ecosystem, in particular environments modified by humans. Interspecific relationships are complex and their understanding is necessary for environmental management decision-making. |
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Prey selectivity of the invasive largemouth bass towards native and non-native prey: an experimental approachFeeding preferenceInvasional MeltdownMicropterus salmoidesMultiple invasionsTilapiaAbstract Non-native predators are known to cause ecological impacts through heightened consumption of resources and decimation of native species. One such species is Micropterus salmoides. Often introduced for sport fishing worldwide; it has been listed by International Union for Conservation of Nature and Natural Resources as one of the 100 of the world’s worst invasive species. Whilst impacts conferred towards native prey are well known, its relationship with other non-native species has received much less attention. Therefore, the aim of this study was to experimentally investigate the feeding preference of M. salmoides towards native prey (Geophagus iporangensis) compared to non-native prey (Oreochromis niloticus and Coptodon rendalli) using comparative consumption and the Manly-Chesson selectivity index. We found a higher consumption by M. salmoides towards the non-native prey and a tendency for this non-native preference to increase when prey availability increased. Our results are in line with the hypothesis that the invasion of the non-native predator can be facilitated by the high abundance and reproductive rate of the non-native prey. This is relevant considering the interaction of multiple invaders in an ecosystem, in particular environments modified by humans. Interspecific relationships are complex and their understanding is necessary for environmental management decision-making.Sociedade Brasileira de Ictiologia2022-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252022000200209Neotropical Ichthyology v.20 n.2 2022reponame:Neotropical ichthyology (Online)instname:Sociedade Brasileira de Ictiologia (SBI)instacron:SBI10.1590/1982-0224-2021-0123info:eu-repo/semantics/openAccessCárdenas-Mahecha,Liliana PaolaVitule,Jean Ricardo SimõesPadial,Andre Andrianeng2022-06-29T00:00:00Zoai:scielo:S1679-62252022000200209Revistahttp://www.ufrgs.br/ni/https://old.scielo.br/oai/scielo-oai.php||neoichth@nupelia.uem.br1982-02241679-6225opendoar:2022-06-29T00:00Neotropical ichthyology (Online) - Sociedade Brasileira de Ictiologia (SBI)false |
dc.title.none.fl_str_mv |
Prey selectivity of the invasive largemouth bass towards native and non-native prey: an experimental approach |
title |
Prey selectivity of the invasive largemouth bass towards native and non-native prey: an experimental approach |
spellingShingle |
Prey selectivity of the invasive largemouth bass towards native and non-native prey: an experimental approach Cárdenas-Mahecha,Liliana Paola Feeding preference Invasional Meltdown Micropterus salmoides Multiple invasions Tilapia |
title_short |
Prey selectivity of the invasive largemouth bass towards native and non-native prey: an experimental approach |
title_full |
Prey selectivity of the invasive largemouth bass towards native and non-native prey: an experimental approach |
title_fullStr |
Prey selectivity of the invasive largemouth bass towards native and non-native prey: an experimental approach |
title_full_unstemmed |
Prey selectivity of the invasive largemouth bass towards native and non-native prey: an experimental approach |
title_sort |
Prey selectivity of the invasive largemouth bass towards native and non-native prey: an experimental approach |
author |
Cárdenas-Mahecha,Liliana Paola |
author_facet |
Cárdenas-Mahecha,Liliana Paola Vitule,Jean Ricardo Simões Padial,Andre Andrian |
author_role |
author |
author2 |
Vitule,Jean Ricardo Simões Padial,Andre Andrian |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Cárdenas-Mahecha,Liliana Paola Vitule,Jean Ricardo Simões Padial,Andre Andrian |
dc.subject.por.fl_str_mv |
Feeding preference Invasional Meltdown Micropterus salmoides Multiple invasions Tilapia |
topic |
Feeding preference Invasional Meltdown Micropterus salmoides Multiple invasions Tilapia |
description |
Abstract Non-native predators are known to cause ecological impacts through heightened consumption of resources and decimation of native species. One such species is Micropterus salmoides. Often introduced for sport fishing worldwide; it has been listed by International Union for Conservation of Nature and Natural Resources as one of the 100 of the world’s worst invasive species. Whilst impacts conferred towards native prey are well known, its relationship with other non-native species has received much less attention. Therefore, the aim of this study was to experimentally investigate the feeding preference of M. salmoides towards native prey (Geophagus iporangensis) compared to non-native prey (Oreochromis niloticus and Coptodon rendalli) using comparative consumption and the Manly-Chesson selectivity index. We found a higher consumption by M. salmoides towards the non-native prey and a tendency for this non-native preference to increase when prey availability increased. Our results are in line with the hypothesis that the invasion of the non-native predator can be facilitated by the high abundance and reproductive rate of the non-native prey. This is relevant considering the interaction of multiple invaders in an ecosystem, in particular environments modified by humans. Interspecific relationships are complex and their understanding is necessary for environmental management decision-making. |
publishDate |
2022 |
dc.date.none.fl_str_mv |
2022-01-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252022000200209 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252022000200209 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/1982-0224-2021-0123 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Sociedade Brasileira de Ictiologia |
publisher.none.fl_str_mv |
Sociedade Brasileira de Ictiologia |
dc.source.none.fl_str_mv |
Neotropical Ichthyology v.20 n.2 2022 reponame:Neotropical ichthyology (Online) instname:Sociedade Brasileira de Ictiologia (SBI) instacron:SBI |
instname_str |
Sociedade Brasileira de Ictiologia (SBI) |
instacron_str |
SBI |
institution |
SBI |
reponame_str |
Neotropical ichthyology (Online) |
collection |
Neotropical ichthyology (Online) |
repository.name.fl_str_mv |
Neotropical ichthyology (Online) - Sociedade Brasileira de Ictiologia (SBI) |
repository.mail.fl_str_mv |
||neoichth@nupelia.uem.br |
_version_ |
1752122183918813184 |