Differential use of trophic resources between an exotic and a coexisting native snail
Autor(a) principal: | |
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Data de Publicação: | 2022 |
Outros Autores: | , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1007/s10201-021-00671-1 http://hdl.handle.net/11449/229299 |
Resumo: | Knowing the interactions between exotic and native species is essential to establish possible threats to the local fauna. In this study, we assessed the use of food resources and diet overlap between a recently introduced snail, Sinotaia quadrata, and a native species, Pomacea canaliculata. We analyzed the gut content and stable isotope of snails and resources in a lowland stream where both species coexist. Both Schoener’s and isotope dietary overlap indexes supported dietary overlap. Conversely, gut content analysis showed differences in consumption: S. quadrata consumed more detritus and diatoms than P. canaliculata, whose diet was characterized by detritus and macrophyte remains. Macrophytes were the resource that most contributed to the diet of both species, as shown by stable isotope mixing models. The combination of both techniques, gut content and stable isotope analysis, indicated that S. quadrata consumed macrophyte detritus while P. canaliculata ate fresh macrophytes. This difference indicates differential use of food resources between the studied species coexisting in a lowland stream. Although no negative trophic interaction was found, we highlight the importance of continuing to monitor interactions for other resources and studying possible risks to the local fauna. |
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Differential use of trophic resources between an exotic and a coexisting native snailGut contentsNon-native speciesPomacea canaliculataSinotaia quadrataStable isotopesKnowing the interactions between exotic and native species is essential to establish possible threats to the local fauna. In this study, we assessed the use of food resources and diet overlap between a recently introduced snail, Sinotaia quadrata, and a native species, Pomacea canaliculata. We analyzed the gut content and stable isotope of snails and resources in a lowland stream where both species coexist. Both Schoener’s and isotope dietary overlap indexes supported dietary overlap. Conversely, gut content analysis showed differences in consumption: S. quadrata consumed more detritus and diatoms than P. canaliculata, whose diet was characterized by detritus and macrophyte remains. Macrophytes were the resource that most contributed to the diet of both species, as shown by stable isotope mixing models. The combination of both techniques, gut content and stable isotope analysis, indicated that S. quadrata consumed macrophyte detritus while P. canaliculata ate fresh macrophytes. This difference indicates differential use of food resources between the studied species coexisting in a lowland stream. Although no negative trophic interaction was found, we highlight the importance of continuing to monitor interactions for other resources and studying possible risks to the local fauna.Consejo Nacional de Investigaciones Científicas y TécnicasUniversidad Nacional de La PlataInstituto de Limnología Dr.-Raúl A. Ringuelet (ILPLA) (CONICET La Plata Universidad Nacional de La Plata), C.C 712-1900, Boulevard 120 y 62 1437Facultad de Ciencias Naturales y Museo Universidad Nacional de La Plata, C.C 712-1900, 122 y 60Instituto Multidisciplinario Sobre Ecosistemas y Desarrollo Sustentable UNCPBA, Campus Universitario - Arroyo Seco S/NCentro de Isótopos Estáveis Instituto de Biociências Universidade Estadual Paulista, Rua Prof. Dr. Antônio Celso Wagner Zanin 250, Rubião Junior, SPCentro de Isótopos Estáveis Instituto de Biociências Universidade Estadual Paulista, Rua Prof. Dr. Antônio Celso Wagner Zanin 250, Rubião Junior, SPConsejo Nacional de Investigaciones Científicas y Técnicas: 0570Universidad Nacional de La Plata: 738-869Universidad Nacional de La Plata)Universidad Nacional de La PlataUNCPBAUniversidade Estadual Paulista (UNESP)Altieri, PaulaPaz, Laura EstefaníaFerreira, Ana ClaraColpo, Karine DelevatiRodrigues Capítulo, AlbertoJensen, RobertoCosta, Vladimir [UNESP]Ocon, Carolina2022-04-29T08:31:36Z2022-04-29T08:31:36Z2022-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article103-110http://dx.doi.org/10.1007/s10201-021-00671-1Limnology, v. 23, n. 1, p. 103-110, 2022.1439-863X1439-8621http://hdl.handle.net/11449/22929910.1007/s10201-021-00671-12-s2.0-85112289309Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengLimnologyinfo:eu-repo/semantics/openAccess2024-04-11T17:47:18Zoai:repositorio.unesp.br:11449/229299Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T18:48:26.692393Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Differential use of trophic resources between an exotic and a coexisting native snail |
title |
Differential use of trophic resources between an exotic and a coexisting native snail |
spellingShingle |
Differential use of trophic resources between an exotic and a coexisting native snail Altieri, Paula Gut contents Non-native species Pomacea canaliculata Sinotaia quadrata Stable isotopes |
title_short |
Differential use of trophic resources between an exotic and a coexisting native snail |
title_full |
Differential use of trophic resources between an exotic and a coexisting native snail |
title_fullStr |
Differential use of trophic resources between an exotic and a coexisting native snail |
title_full_unstemmed |
Differential use of trophic resources between an exotic and a coexisting native snail |
title_sort |
Differential use of trophic resources between an exotic and a coexisting native snail |
author |
Altieri, Paula |
author_facet |
Altieri, Paula Paz, Laura Estefanía Ferreira, Ana Clara Colpo, Karine Delevati Rodrigues Capítulo, Alberto Jensen, Roberto Costa, Vladimir [UNESP] Ocon, Carolina |
author_role |
author |
author2 |
Paz, Laura Estefanía Ferreira, Ana Clara Colpo, Karine Delevati Rodrigues Capítulo, Alberto Jensen, Roberto Costa, Vladimir [UNESP] Ocon, Carolina |
author2_role |
author author author author author author author |
dc.contributor.none.fl_str_mv |
Universidad Nacional de La Plata) Universidad Nacional de La Plata UNCPBA Universidade Estadual Paulista (UNESP) |
dc.contributor.author.fl_str_mv |
Altieri, Paula Paz, Laura Estefanía Ferreira, Ana Clara Colpo, Karine Delevati Rodrigues Capítulo, Alberto Jensen, Roberto Costa, Vladimir [UNESP] Ocon, Carolina |
dc.subject.por.fl_str_mv |
Gut contents Non-native species Pomacea canaliculata Sinotaia quadrata Stable isotopes |
topic |
Gut contents Non-native species Pomacea canaliculata Sinotaia quadrata Stable isotopes |
description |
Knowing the interactions between exotic and native species is essential to establish possible threats to the local fauna. In this study, we assessed the use of food resources and diet overlap between a recently introduced snail, Sinotaia quadrata, and a native species, Pomacea canaliculata. We analyzed the gut content and stable isotope of snails and resources in a lowland stream where both species coexist. Both Schoener’s and isotope dietary overlap indexes supported dietary overlap. Conversely, gut content analysis showed differences in consumption: S. quadrata consumed more detritus and diatoms than P. canaliculata, whose diet was characterized by detritus and macrophyte remains. Macrophytes were the resource that most contributed to the diet of both species, as shown by stable isotope mixing models. The combination of both techniques, gut content and stable isotope analysis, indicated that S. quadrata consumed macrophyte detritus while P. canaliculata ate fresh macrophytes. This difference indicates differential use of food resources between the studied species coexisting in a lowland stream. Although no negative trophic interaction was found, we highlight the importance of continuing to monitor interactions for other resources and studying possible risks to the local fauna. |
publishDate |
2022 |
dc.date.none.fl_str_mv |
2022-04-29T08:31:36Z 2022-04-29T08:31:36Z 2022-01-01 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1007/s10201-021-00671-1 Limnology, v. 23, n. 1, p. 103-110, 2022. 1439-863X 1439-8621 http://hdl.handle.net/11449/229299 10.1007/s10201-021-00671-1 2-s2.0-85112289309 |
url |
http://dx.doi.org/10.1007/s10201-021-00671-1 http://hdl.handle.net/11449/229299 |
identifier_str_mv |
Limnology, v. 23, n. 1, p. 103-110, 2022. 1439-863X 1439-8621 10.1007/s10201-021-00671-1 2-s2.0-85112289309 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Limnology |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
103-110 |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808128982425534464 |