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Intrapopulation differences in biological traits and impacts in a highly invasive freshwater species

2025Journal article Open access
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datacite.subject.fosCiências Naturais::Ciências da Terra e do Ambiente
datacite.subject.sdg15:Proteger a Vida Terrestre
datacite.subject.sdg14:Proteger a Vida Marinha
datacite.subject.sdg13:Ação Climática
dc.contributor.authorAlves, Henrique
dc.contributor.authorGonçalves, Diana
dc.contributor.authorNogueira, António Barbosa
dc.contributor.authorTeixeira, Amilcar
dc.contributor.authorPadilha, Janeide
dc.contributor.authorSousa, Ronaldo
dc.date.accessioned2025-05-14T13:28:41Z
dc.date.available2025-05-14T13:28:41Z
dc.date.issued2025
dc.description.abstractIndividual variation assessments are essential to better understand population and community dynamics, as well ecosystem functioning. Although researchers have long recognized this aspect, only recently has evidence accumulated about the ecological importance of variation within species. The incorporation of individual variation provides an even more complete description of the effects a species may have on ecosystems and this detailed ecological knowledge can be especially important in the context of biological invasions. In this study, we used an invasion gradient of the signal crayfish Pacifastacus leniusculus in the Rabaçal River (NE Portugal) to assess possible intrapopulation differences in key biological traits and evaluate possible changes in ecological impacts. For this, we collected individuals from the core and front of an invasion gradient to characterize several traits such as abundance, size, sex-ratio, body condition, behaviour (i.e. boldness), and trophic niche. In addition, we performed two laboratory experiments to assess possible differences regarding the consumption of prey (gastropods), leaf mass loss, and nutrients release. Signal crayfish from the front of the invasion gradient have lower abundance, are larger, predominantly male, have better body condition in both sexes, exhibit increased boldness, and have higher δ 15 N and lower δ 13 C values. In addition, in experimental conditions, signal crayfish from the front of the invasion gradient consumed more gastropods and leaves and increased the concentration of nitrates and phosphates in the water. Overall, the signal crayfish has different biological traits and distinct ecological impacts along the invasion gradient in the studied river. Our study demonstrates the relevance of assessing biological traits and impacts of invasive species at the intrapopulation level.eng
dc.description.sponsorshipThis study was supported by the Portuguese Foundation for Science and Technology (FCT) through national funds under the project MULTI-CRASH: Multi-dimensional ecological cascades triggered by an invasive species in pristine habitats (PTDC/CTA-AMB/0510/2021) (https://doi.org/10.54499/PTDC/CTA-AMB/0510/2021) and the project Scientific Employment Stimulus - 6th Edition (2023.07078.CEECIND).
dc.identifier.citationIntrapopulation differences in biological traits and impacts in a highly invasive freshwater species. NeoBiota. ISSN 1314-2488, EISSN 1619-0033, V: 97, P. 325-349
dc.identifier.doi10.3897/neobiota.97.127861
dc.identifier.eissn1619-0033
dc.identifier.issn1314-2488
dc.identifier.urihttp://hdl.handle.net/10198/34476
dc.language.isoeng
dc.peerreviewedyes
dc.publisherPensoft Publishers
dc.relationMULTI-CRASH: Multi-dimensional ecological cascades triggered by an invasive species in pristine habitats
dc.relation2023.07078.CEECIND
dc.relation.ispartofNeoBiota
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectBiological traits
dc.subjectEcological impacts
dc.subjectInvasive species
dc.subjectPacifastacus leniusculus
dc.subjectSignal crayfish
dc.titleIntrapopulation differences in biological traits and impacts in a highly invasive freshwater specieseng
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleMULTI-CRASH: Multi-dimensional ecological cascades triggered by an invasive species in pristine habitats
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/Concurso de Projetos IC&DT em Todos os Domínios Científicos/PTDC%2FCTA-AMB%2F0510%2F2021/PT
oaire.citation.endPage349
oaire.citation.startPage325
oaire.citation.titleNeoBiota
oaire.citation.volume97
oaire.fundingStreamConcurso de Projetos IC&DT em Todos os Domínios Científicos
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85
person.familyNameTeixeira
person.givenNameAmilcar
person.identifier2153193
person.identifier.ciencia-id9510-3CF3-0393
person.identifier.orcid0000-0001-5336-1174
person.identifier.scopus-author-id7202385393
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
relation.isAuthorOfPublication4f0753fd-4b4f-46f6-8e2f-20c7f835a32a
relation.isAuthorOfPublication.latestForDiscovery4f0753fd-4b4f-46f6-8e2f-20c7f835a32a
relation.isProjectOfPublication0e75c512-e95c-48c8-ac36-4e184d20ea44
relation.isProjectOfPublication.latestForDiscovery0e75c512-e95c-48c8-ac36-4e184d20ea44

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