Engineering by an invasive species alters landscape-level ecosystem function, but does not affect biodiversity in freshwater systems

Autores
Anderson, Christopher Brian; Lencinas, María Vanessa; Wallem, Petra K.; Valenzuela, Alejandro Eduardo Jorge; Simanonok, Michael P.; Martínez Pastur, Guillermo José
Año de publicación
2014
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Aim: Ecological theory predicts that invasive ecosystem engineers like the American beaver (Castor canadensis) in Tierra del Fuego (TDF) affect landscape-level biodiversity and ecosystem function (BEF) when engineered habitats are novel or extensive. We tested these hypotheses on freshwater BEF, sampling benthic habitat and macroinvertebrates in natural lotic (forest and grassland streams) and natural lentic habitats (bogs, lakes) and beaver-modified lentic ecosystems (active and abandoned ponds). Location: Tierra del Fuego Archipelago (Chile and Argentina). Methods: To determine effects on patch-scale BEF, we assessed two drivers: substrate diversity (H′) and benthic organic matter standing crop (BOM, g m-2). Extent of impact was estimated as relative stream length (%) for each patch type in four 1000 ha images. Results: The freshwater landscape was 56% free-flowing streams (natural lotic), 13% bogs and lakes (natural lentic) and 31% active and abandoned beaver ponds (beaver lentic). While engineering significantly modified lotic habitats (converting them to ponds), the beaver ponds were largely similar to natural lentic systems, but engineered lentic patches retained more BOM. While benthic biodiversity in beaver ponds was less than streams, the assemblage contained no habitat-specific taxa and was a subset of the natural lentic community. Main conclusions: Invasive beavers engineer habitats whose biodiversity is similar to the landscape's natural lentic habitats, but by increasing the surface area and unit area retention of BOM via its impoundments, this invasion augments carbon standing stock approximately 72% in watersheds. While this invasion is considered the largest alteration to TDF's forested biome in the Holocene, here we discover that its impact is to ecosystem function, rather than biodiversity in the aquatic landscape.
Fil: Anderson, Christopher Brian. Universidad Nacional de Tierra del Fuego. Instituto de Ciencias Polares, Recursos Naturales y Ambiente; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina. Omora Sub-Antarctic Research Alliance; Estados Unidos
Fil: Lencinas, María Vanessa. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina
Fil: Wallem, Petra K.. Bioamerica Consultores; Chile
Fil: Valenzuela, Alejandro Eduardo Jorge. Administración de Parques Nacionales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Simanonok, Michael P.. State University Of Montana; Estados Unidos
Fil: Martínez Pastur, Guillermo José. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina
Materia
BEAVER
BENTHIC MACROINVERTEBRATE
BIODIVERSITY-ECOSYSTEM FUNCTION
CASTOR CANADENSIS
NON-NATIVE
PATAGONIA
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/5580
Acceder
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network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Engineering by an invasive species alters landscape-level ecosystem function, but does not affect biodiversity in freshwater systemsAnderson, Christopher BrianLencinas, María VanessaWallem, Petra K.Valenzuela, Alejandro Eduardo JorgeSimanonok, Michael P.Martínez Pastur, Guillermo JoséBEAVERBENTHIC MACROINVERTEBRATEBIODIVERSITY-ECOSYSTEM FUNCTIONCASTOR CANADENSISNON-NATIVEPATAGONIAhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Aim: Ecological theory predicts that invasive ecosystem engineers like the American beaver (Castor canadensis) in Tierra del Fuego (TDF) affect landscape-level biodiversity and ecosystem function (BEF) when engineered habitats are novel or extensive. We tested these hypotheses on freshwater BEF, sampling benthic habitat and macroinvertebrates in natural lotic (forest and grassland streams) and natural lentic habitats (bogs, lakes) and beaver-modified lentic ecosystems (active and abandoned ponds). Location: Tierra del Fuego Archipelago (Chile and Argentina). Methods: To determine effects on patch-scale BEF, we assessed two drivers: substrate diversity (H′) and benthic organic matter standing crop (BOM, g m-2). Extent of impact was estimated as relative stream length (%) for each patch type in four 1000 ha images. Results: The freshwater landscape was 56% free-flowing streams (natural lotic), 13% bogs and lakes (natural lentic) and 31% active and abandoned beaver ponds (beaver lentic). While engineering significantly modified lotic habitats (converting them to ponds), the beaver ponds were largely similar to natural lentic systems, but engineered lentic patches retained more BOM. While benthic biodiversity in beaver ponds was less than streams, the assemblage contained no habitat-specific taxa and was a subset of the natural lentic community. Main conclusions: Invasive beavers engineer habitats whose biodiversity is similar to the landscape's natural lentic habitats, but by increasing the surface area and unit area retention of BOM via its impoundments, this invasion augments carbon standing stock approximately 72% in watersheds. While this invasion is considered the largest alteration to TDF's forested biome in the Holocene, here we discover that its impact is to ecosystem function, rather than biodiversity in the aquatic landscape.Fil: Anderson, Christopher Brian. Universidad Nacional de Tierra del Fuego. Instituto de Ciencias Polares, Recursos Naturales y Ambiente; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina. Omora Sub-Antarctic Research Alliance; Estados UnidosFil: Lencinas, María Vanessa. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; ArgentinaFil: Wallem, Petra K.. Bioamerica Consultores; ChileFil: Valenzuela, Alejandro Eduardo Jorge. Administración de Parques Nacionales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Simanonok, Michael P.. State University Of Montana; Estados UnidosFil: Martínez Pastur, Guillermo José. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; ArgentinaWiley2014-02info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/5580Anderson, Christopher Brian; Lencinas, María Vanessa; Wallem, Petra K.; Valenzuela, Alejandro Eduardo Jorge; Simanonok, Michael P.; et al.; Engineering by an invasive species alters landscape-level ecosystem function, but does not affect biodiversity in freshwater systems; Wiley; Diversity and Distributions; 20; 2; 2-2014; 214-2221366-9516enginfo:eu-repo/semantics/altIdentifier/url/http://onlinelibrary.wiley.com/wol1/doi/10.1111/ddi.12147/abstractinfo:eu-repo/semantics/altIdentifier/doi/10.1111/ddi.12147info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T11:23:38Zoai:ri.conicet.gov.ar:11336/5580instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-10-22 11:23:38.838CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Engineering by an invasive species alters landscape-level ecosystem function, but does not affect biodiversity in freshwater systems
title Engineering by an invasive species alters landscape-level ecosystem function, but does not affect biodiversity in freshwater systems
spellingShingle Engineering by an invasive species alters landscape-level ecosystem function, but does not affect biodiversity in freshwater systems
Anderson, Christopher Brian
BEAVER
BENTHIC MACROINVERTEBRATE
BIODIVERSITY-ECOSYSTEM FUNCTION
CASTOR CANADENSIS
NON-NATIVE
PATAGONIA
title_short Engineering by an invasive species alters landscape-level ecosystem function, but does not affect biodiversity in freshwater systems
title_full Engineering by an invasive species alters landscape-level ecosystem function, but does not affect biodiversity in freshwater systems
title_fullStr Engineering by an invasive species alters landscape-level ecosystem function, but does not affect biodiversity in freshwater systems
title_full_unstemmed Engineering by an invasive species alters landscape-level ecosystem function, but does not affect biodiversity in freshwater systems
title_sort Engineering by an invasive species alters landscape-level ecosystem function, but does not affect biodiversity in freshwater systems
dc.creator.none.fl_str_mv Anderson, Christopher Brian
Lencinas, María Vanessa
Wallem, Petra K.
Valenzuela, Alejandro Eduardo Jorge
Simanonok, Michael P.
Martínez Pastur, Guillermo José
author Anderson, Christopher Brian
author_facet Anderson, Christopher Brian
Lencinas, María Vanessa
Wallem, Petra K.
Valenzuela, Alejandro Eduardo Jorge
Simanonok, Michael P.
Martínez Pastur, Guillermo José
author_role author
author2 Lencinas, María Vanessa
Wallem, Petra K.
Valenzuela, Alejandro Eduardo Jorge
Simanonok, Michael P.
Martínez Pastur, Guillermo José
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv BEAVER
BENTHIC MACROINVERTEBRATE
BIODIVERSITY-ECOSYSTEM FUNCTION
CASTOR CANADENSIS
NON-NATIVE
PATAGONIA
topic BEAVER
BENTHIC MACROINVERTEBRATE
BIODIVERSITY-ECOSYSTEM FUNCTION
CASTOR CANADENSIS
NON-NATIVE
PATAGONIA
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Aim: Ecological theory predicts that invasive ecosystem engineers like the American beaver (Castor canadensis) in Tierra del Fuego (TDF) affect landscape-level biodiversity and ecosystem function (BEF) when engineered habitats are novel or extensive. We tested these hypotheses on freshwater BEF, sampling benthic habitat and macroinvertebrates in natural lotic (forest and grassland streams) and natural lentic habitats (bogs, lakes) and beaver-modified lentic ecosystems (active and abandoned ponds). Location: Tierra del Fuego Archipelago (Chile and Argentina). Methods: To determine effects on patch-scale BEF, we assessed two drivers: substrate diversity (H′) and benthic organic matter standing crop (BOM, g m-2). Extent of impact was estimated as relative stream length (%) for each patch type in four 1000 ha images. Results: The freshwater landscape was 56% free-flowing streams (natural lotic), 13% bogs and lakes (natural lentic) and 31% active and abandoned beaver ponds (beaver lentic). While engineering significantly modified lotic habitats (converting them to ponds), the beaver ponds were largely similar to natural lentic systems, but engineered lentic patches retained more BOM. While benthic biodiversity in beaver ponds was less than streams, the assemblage contained no habitat-specific taxa and was a subset of the natural lentic community. Main conclusions: Invasive beavers engineer habitats whose biodiversity is similar to the landscape's natural lentic habitats, but by increasing the surface area and unit area retention of BOM via its impoundments, this invasion augments carbon standing stock approximately 72% in watersheds. While this invasion is considered the largest alteration to TDF's forested biome in the Holocene, here we discover that its impact is to ecosystem function, rather than biodiversity in the aquatic landscape.
Fil: Anderson, Christopher Brian. Universidad Nacional de Tierra del Fuego. Instituto de Ciencias Polares, Recursos Naturales y Ambiente; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina. Omora Sub-Antarctic Research Alliance; Estados Unidos
Fil: Lencinas, María Vanessa. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina
Fil: Wallem, Petra K.. Bioamerica Consultores; Chile
Fil: Valenzuela, Alejandro Eduardo Jorge. Administración de Parques Nacionales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Simanonok, Michael P.. State University Of Montana; Estados Unidos
Fil: Martínez Pastur, Guillermo José. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina
description Aim: Ecological theory predicts that invasive ecosystem engineers like the American beaver (Castor canadensis) in Tierra del Fuego (TDF) affect landscape-level biodiversity and ecosystem function (BEF) when engineered habitats are novel or extensive. We tested these hypotheses on freshwater BEF, sampling benthic habitat and macroinvertebrates in natural lotic (forest and grassland streams) and natural lentic habitats (bogs, lakes) and beaver-modified lentic ecosystems (active and abandoned ponds). Location: Tierra del Fuego Archipelago (Chile and Argentina). Methods: To determine effects on patch-scale BEF, we assessed two drivers: substrate diversity (H′) and benthic organic matter standing crop (BOM, g m-2). Extent of impact was estimated as relative stream length (%) for each patch type in four 1000 ha images. Results: The freshwater landscape was 56% free-flowing streams (natural lotic), 13% bogs and lakes (natural lentic) and 31% active and abandoned beaver ponds (beaver lentic). While engineering significantly modified lotic habitats (converting them to ponds), the beaver ponds were largely similar to natural lentic systems, but engineered lentic patches retained more BOM. While benthic biodiversity in beaver ponds was less than streams, the assemblage contained no habitat-specific taxa and was a subset of the natural lentic community. Main conclusions: Invasive beavers engineer habitats whose biodiversity is similar to the landscape's natural lentic habitats, but by increasing the surface area and unit area retention of BOM via its impoundments, this invasion augments carbon standing stock approximately 72% in watersheds. While this invasion is considered the largest alteration to TDF's forested biome in the Holocene, here we discover that its impact is to ecosystem function, rather than biodiversity in the aquatic landscape.
publishDate 2014
dc.date.none.fl_str_mv 2014-02
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/5580
Anderson, Christopher Brian; Lencinas, María Vanessa; Wallem, Petra K.; Valenzuela, Alejandro Eduardo Jorge; Simanonok, Michael P.; et al.; Engineering by an invasive species alters landscape-level ecosystem function, but does not affect biodiversity in freshwater systems; Wiley; Diversity and Distributions; 20; 2; 2-2014; 214-222
1366-9516
url http://hdl.handle.net/11336/5580
identifier_str_mv Anderson, Christopher Brian; Lencinas, María Vanessa; Wallem, Petra K.; Valenzuela, Alejandro Eduardo Jorge; Simanonok, Michael P.; et al.; Engineering by an invasive species alters landscape-level ecosystem function, but does not affect biodiversity in freshwater systems; Wiley; Diversity and Distributions; 20; 2; 2-2014; 214-222
1366-9516
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://onlinelibrary.wiley.com/wol1/doi/10.1111/ddi.12147/abstract
info:eu-repo/semantics/altIdentifier/doi/10.1111/ddi.12147
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Wiley
publisher.none.fl_str_mv Wiley
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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