Crayfish invasion facilitates dispersal of plants and invertebrates by gulls

The red swamp crayfish (Procambarus clarkii), originally from North America, is one of the world's worst aquatic invaders. It is a favoured prey item for waterbirds, but the influence of this novel predator–prey relationship on dispersal of other organisms has not previously been considered. We...

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Detalles Bibliográficos
Autores: Lovas-Kiss, Ádám, Sánchez, Marta I., Molnár, Attila, Valls, Luis, Armengol, Xavier, Mesquita-Joanes, Francesc, Green, Andy J.
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2018
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/165833
Acceso en línea:http://hdl.handle.net/10261/165833
Access Level:acceso abierto
Palabra clave:Biological invasions
Endozoochory
Epizoochory
Procambarus clarkii
Seeds
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spelling Crayfish invasion facilitates dispersal of plants and invertebrates by gullsLovas-Kiss, ÁdámSánchez, Marta I.Molnár, AttilaValls, LuisArmengol, XavierMesquita-Joanes, FrancescGreen, Andy J.Biological invasionsEndozoochoryEpizoochoryProcambarus clarkiiSeedsThe red swamp crayfish (Procambarus clarkii), originally from North America, is one of the world's worst aquatic invaders. It is a favoured prey item for waterbirds, but the influence of this novel predator–prey relationship on dispersal of other organisms has not previously been considered. We investigated the potential for dispersal of plants and invertebrates by migratory waterbirds feeding on alien P. clarkii in European ricefields at harvest time. In November–December of 2014–2015, we collected propagules from the outside of 13 crayfish captured as they moved out of ricefields during harvest in Doñana, south‐west Spain. We also collected excreta (N = 76 faeces, 14 pellets) of lesser‐black backed gull (Larus fuscus). We recorded diaspores from at least 11 plant species (161 seeds from 10 angiosperm taxa, and 14 charophyte oogonia) on the outside of crayfish, together with 54 eggs from eight aquatic invertebrate taxa. Adults and juveniles of at least nine microcrustaceans, including the alien ostracods Hemicypris reticulata and Ankylocythere sinuosa, were also recovered from crayfish. No intact propagules were present in the digestive system of the crayfish. Contents of regurgitated pellets confirmed P. clarkii as the main food item for gulls. Diaspores from at least 12 plant species (154 seeds from 11 angiosperm taxa, and 17 charophyte oogonia) were recovered from gull excreta, together with 129 eggs of 12 aquatic invertebrate taxa. A statoblast of the alien bryozoan Plumatella vaihiriae was found in gull faeces. Seven of the plant species are important agricultural weeds, and two are alien to Spain. Diaspores from six plant taxa were germinated, confirming viability. These propagules were from a similar set of plants and invertebrates to those found on the outside of crayfish, suggesting that propagules in gull excreta were ingested inadvertently with their crayfish prey. Ricefields constitute a major artificial aquatic habitat covering an increasing proportion of the world's land surface and typically support native or alien crayfish. Crayfish invasion can lead to novel secondary dispersal pathways for plants and invertebrates through interactions with their predators, promoting the expansion of alien and native species (including weeds) through long‐distance dispersal via migratory waterbirds and increasing connectivity of organisms between artificial and natural ecosystems. This represents a previously overlooked impact of crayfish invasion on ecosystem services. Supporting InformationPeer reviewedWiley-BlackwellSánchez, Marta I. [0000-0003-1461-4786]Molnár, Attila V. [0000-0001-7096-9579]Valls, Luis [0000-0002-1798-4574]Armengol, Xavier [0000-0002-0312-0396]Mesquita-Joanes, Francesc [0000-0001-7168-1980]Gree, Andy J. [0000-0002-1268-4951 23]Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]201820182018info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Postprintinfo:eu-repo/semantics/acceptedVersionhttp://hdl.handle.net/10261/165833reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttps://doi.org/10.1111/fwb.13080Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/1658332026-05-22T06:33:51Z
dc.title.none.fl_str_mv Crayfish invasion facilitates dispersal of plants and invertebrates by gulls
title Crayfish invasion facilitates dispersal of plants and invertebrates by gulls
spellingShingle Crayfish invasion facilitates dispersal of plants and invertebrates by gulls
Lovas-Kiss, Ádám
Biological invasions
Endozoochory
Epizoochory
Procambarus clarkii
Seeds
title_short Crayfish invasion facilitates dispersal of plants and invertebrates by gulls
title_full Crayfish invasion facilitates dispersal of plants and invertebrates by gulls
title_fullStr Crayfish invasion facilitates dispersal of plants and invertebrates by gulls
title_full_unstemmed Crayfish invasion facilitates dispersal of plants and invertebrates by gulls
title_sort Crayfish invasion facilitates dispersal of plants and invertebrates by gulls
dc.creator.none.fl_str_mv Lovas-Kiss, Ádám
Sánchez, Marta I.
Molnár, Attila
Valls, Luis
Armengol, Xavier
Mesquita-Joanes, Francesc
Green, Andy J.
author Lovas-Kiss, Ádám
author_facet Lovas-Kiss, Ádám
Sánchez, Marta I.
Molnár, Attila
Valls, Luis
Armengol, Xavier
Mesquita-Joanes, Francesc
Green, Andy J.
author_role author
author2 Sánchez, Marta I.
Molnár, Attila
Valls, Luis
Armengol, Xavier
Mesquita-Joanes, Francesc
Green, Andy J.
author2_role author
author
author
author
author
author
dc.contributor.none.fl_str_mv Sánchez, Marta I. [0000-0003-1461-4786]
Molnár, Attila V. [0000-0001-7096-9579]
Valls, Luis [0000-0002-1798-4574]
Armengol, Xavier [0000-0002-0312-0396]
Mesquita-Joanes, Francesc [0000-0001-7168-1980]
Gree, Andy J. [0000-0002-1268-4951 23]
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Biological invasions
Endozoochory
Epizoochory
Procambarus clarkii
Seeds
topic Biological invasions
Endozoochory
Epizoochory
Procambarus clarkii
Seeds
description The red swamp crayfish (Procambarus clarkii), originally from North America, is one of the world's worst aquatic invaders. It is a favoured prey item for waterbirds, but the influence of this novel predator–prey relationship on dispersal of other organisms has not previously been considered. We investigated the potential for dispersal of plants and invertebrates by migratory waterbirds feeding on alien P. clarkii in European ricefields at harvest time. In November–December of 2014–2015, we collected propagules from the outside of 13 crayfish captured as they moved out of ricefields during harvest in Doñana, south‐west Spain. We also collected excreta (N = 76 faeces, 14 pellets) of lesser‐black backed gull (Larus fuscus). We recorded diaspores from at least 11 plant species (161 seeds from 10 angiosperm taxa, and 14 charophyte oogonia) on the outside of crayfish, together with 54 eggs from eight aquatic invertebrate taxa. Adults and juveniles of at least nine microcrustaceans, including the alien ostracods Hemicypris reticulata and Ankylocythere sinuosa, were also recovered from crayfish. No intact propagules were present in the digestive system of the crayfish. Contents of regurgitated pellets confirmed P. clarkii as the main food item for gulls. Diaspores from at least 12 plant species (154 seeds from 11 angiosperm taxa, and 17 charophyte oogonia) were recovered from gull excreta, together with 129 eggs of 12 aquatic invertebrate taxa. A statoblast of the alien bryozoan Plumatella vaihiriae was found in gull faeces. Seven of the plant species are important agricultural weeds, and two are alien to Spain. Diaspores from six plant taxa were germinated, confirming viability. These propagules were from a similar set of plants and invertebrates to those found on the outside of crayfish, suggesting that propagules in gull excreta were ingested inadvertently with their crayfish prey. Ricefields constitute a major artificial aquatic habitat covering an increasing proportion of the world's land surface and typically support native or alien crayfish. Crayfish invasion can lead to novel secondary dispersal pathways for plants and invertebrates through interactions with their predators, promoting the expansion of alien and native species (including weeds) through long‐distance dispersal via migratory waterbirds and increasing connectivity of organisms between artificial and natural ecosystems. This represents a previously overlooked impact of crayfish invasion on ecosystem services. Supporting Information
publishDate 2018
dc.date.none.fl_str_mv 2018
2018
2018
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Postprint
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/165833
url http://hdl.handle.net/10261/165833
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv https://doi.org/10.1111/fwb.13080
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Wiley-Blackwell
publisher.none.fl_str_mv Wiley-Blackwell
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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