Differential use of trophic resources between an exotic and a coexisting native snail

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dc.contributor.authorAltieri, Paula
dc.contributor.authorPaz, Laura Estefanía
dc.contributor.authorFerreira, Ana Clara
dc.contributor.authorColpo, Karine Delevati
dc.contributor.authorRodrigues Capítulo, Alberto
dc.contributor.authorJensen, Roberto
dc.contributor.authorCosta, Vladimir [UNESP]
dc.contributor.authorOcon, Carolina
dc.contributor.institutionUniversidad Nacional de La Plata)
dc.contributor.institutionUniversidad Nacional de La Plata
dc.contributor.institutionUNCPBA
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.date.accessioned2022-04-29T08:31:36Z
dc.date.available2022-04-29T08:31:36Z
dc.date.issued2022-01-01
dc.description.abstractKnowing 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.en
dc.description.affiliationInstituto de Limnología Dr.-Raúl A. Ringuelet (ILPLA) (CONICET La Plata Universidad Nacional de La Plata), C.C 712-1900, Boulevard 120 y 62 1437
dc.description.affiliationFacultad de Ciencias Naturales y Museo Universidad Nacional de La Plata, C.C 712-1900, 122 y 60
dc.description.affiliationInstituto Multidisciplinario Sobre Ecosistemas y Desarrollo Sustentable UNCPBA, Campus Universitario - Arroyo Seco S/N
dc.description.affiliationCentro de Isótopos Estáveis Instituto de Biociências Universidade Estadual Paulista, Rua Prof. Dr. Antônio Celso Wagner Zanin 250, Rubião Junior, SP
dc.description.affiliationUnespCentro de Isótopos Estáveis Instituto de Biociências Universidade Estadual Paulista, Rua Prof. Dr. Antônio Celso Wagner Zanin 250, Rubião Junior, SP
dc.description.sponsorshipConsejo Nacional de Investigaciones Científicas y Técnicas
dc.description.sponsorshipUniversidad Nacional de La Plata
dc.description.sponsorshipIdConsejo Nacional de Investigaciones Científicas y Técnicas: 0570
dc.description.sponsorshipIdUniversidad Nacional de La Plata: 738-869
dc.format.extent103-110
dc.identifierhttp://dx.doi.org/10.1007/s10201-021-00671-1
dc.identifier.citationLimnology, v. 23, n. 1, p. 103-110, 2022.
dc.identifier.doi10.1007/s10201-021-00671-1
dc.identifier.issn1439-863X
dc.identifier.issn1439-8621
dc.identifier.scopus2-s2.0-85112289309
dc.identifier.urihttp://hdl.handle.net/11449/229299
dc.language.isoeng
dc.relation.ispartofLimnology
dc.sourceScopus
dc.subjectGut contents
dc.subjectNon-native species
dc.subjectPomacea canaliculata
dc.subjectSinotaia quadrata
dc.subjectStable isotopes
dc.titleDifferential use of trophic resources between an exotic and a coexisting native snailen
dc.typeArtigo
unesp.author.orcid0000-0001-6858-8099[1]

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Botucatu - CIE - Centro de Isótopos Estáveis