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Individual and population-scale carbon and nitrogen isotopic values of Procambarusclarkii in invaded freshwater ecosystems.
Di Muri, Cristina; Alcorlo, Paloma; Bardelli, Roberta; Catalan, Jordi; Gacia, Esperança; Guerra, Maria Teresa; Rosati, Ilaria; Soto, David X; Vizzini, Salvatrice; Mancinelli, Giorgio.
Afiliação
  • Di Muri C; LifeWatch ERIC, Lecce, Italy LifeWatch ERIC Lecce Italy.
  • Alcorlo P; Italian National Research Council (CNR), Institute of Research on Terrestrial Ecosystems (IRET), Lecce, Italy Italian National Research Council (CNR), Institute of Research on Terrestrial Ecosystems (IRET) Lecce Italy.
  • Bardelli R; Universidad Autónoma de Madrid, Madrid, Spain Universidad Autónoma de Madrid Madrid Spain.
  • Catalan J; Biodiversity and Global Change Research Center (CIBC), Madrid, Spain Biodiversity and Global Change Research Center (CIBC) Madrid Spain.
  • Gacia E; University of Palermo, Palermo, Italy University of Palermo Palermo Italy.
  • Guerra MT; Centre for Research on Ecology and Forestry Applications (CREAF), Barcelona, Spain Centre for Research on Ecology and Forestry Applications (CREAF) Barcelona Spain.
  • Rosati I; Spanish National Research Council (CSIC), Barcelona, Spain Spanish National Research Council (CSIC) Barcelona Spain.
  • Soto DX; Centre for Advanced Studies of Blanes (CEAB), Spanish National Research Council (CSIC), Girona, Spain Centre for Advanced Studies of Blanes (CEAB), Spanish National Research Council (CSIC) Girona Spain.
  • Vizzini S; University of Salento, Lecce, Italy University of Salento Lecce Italy.
  • Mancinelli G; LifeWatch Italy, Lecce, Italy LifeWatch Italy Lecce Italy.
Biodivers Data J ; 10: e94411, 2022.
Article em En | MEDLINE | ID: mdl-36761629
ABSTRACT

Background:

Freshwater ecosystems are amongst the most threatened habitats on Earth; nevertheless, they support about 9.5% of the known global biodiversity while covering less than 1% of the globe's surface. A number of anthropogenic pressures are impacting species diversity in inland waters and, amongst them, the spread of invasive alien species is considered one of the main drivers of biodiversity loss and homogenisation in freshwater habitats.Crayfish species are widely distributed freshwater invaders and, while alien species introductions occur mostly accidentally, alien crayfish are often released deliberately into new areas for commercial purposes. After their initial introduction, crayfish species can rapidly establish and reach high-density populations as a result of their adaptive functional traits, such as their generalist diet.The Louisiana crayfish Procambarusclarkii (Girard, 1852) is globally considered one of the worst invaders and its impact on recipient freshwater communities can vary from predation and competition with native species, to modification of food webs and habitat structure and introduction of pathogens. Native to the south United States and north Mexico, P.clarkii has been introduced in Europe, Asia and Africa, determining negative ecological and economic impacts in the majority of invaded habitats where it became dominant within the receiving benthic food webs. Due to its flexible feeding strategy, P.clarkii exerts adverse effects at different trophic levels, ultimately affecting the structure and dynamics of invaded food webs. It is, therefore, paramount to evaluate the ecological consequences of P.clarkii invasion and to quantify its impact in a spatially explicit context. New information In the past decades, the analysis of stable isotopes of carbon, nitrogen and other elements has become a popular methodology in food web ecology. Notably, stable isotope analysis has emerged as a primary tool for addressing applied issues in biodiversity conservation and management, such as the assessment of the trophic ecology of non-indigenous species in invaded habitats. Here, we built two geo-referenced datasets, resolved respectively at the population and individual scale, by collating information on δ13C and δ15N values of P.clarkii within invaded inland waters. The population-scale dataset consists of 160 carbon and nitrogen isotopic values of the Louisiana crayfish and its potential prey, including living and non-living primary producers and benthic invertebrates. The dataset resolved at individual scale consists of 1,168 isotopic records of P.clarkii. The isotopic values included within the two datasets were gathered from 10 countries located in Europe, Asia, Africa and North America, for a total of 41 studies published between 2005 and 2021. To the best of the authors' knowledge, this effort represents the first attempt to collate in standardised datasets the sparse isotopic information of P.clarkii available in literature. The datasets lend themselves to being used for providing a spatially explicit resolution of the trophic ecology of P.clarkii and to address a variety of ecological questions concerning its ecological impact on recipient aquatic food webs.
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Texto completo: 1 Base de dados: MEDLINE Idioma: En Ano de publicação: 2022 Tipo de documento: Article

Texto completo: 1 Base de dados: MEDLINE Idioma: En Ano de publicação: 2022 Tipo de documento: Article