Does the nature and persistence of a substrate at a mesohabitat scale matter for Chironomidae assemblages? A study in two perennial mountain streams in Patagonia, Argentina

Autores
Epele, Luis Beltran; Miserendino, Maria Laura; Brand, Cecilia
Año de publicación
2012
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Chironomid substrate-specific associations regarding the nature (organic-inorganic) and stability (stable-unstable) of different habitats were investigated at two low order Patagonian streams, during high and low water periods. Nant y Fall and Glyn rivers were visited twice (October 2007 and March 2008) and seven different habitat types were identified. A total of 60 samples were collected using a Surber sampler (0.09 m-2 and 250 μm) and a set of 23 environmental descriptors including physicochemical parameters and different fractions of particulate organic matter were assessed. Thirty five Chironomidae taxa were recorded with Orthocladiinae (20), Chironominae (7) and Podonominae (4) being the best represented subfamilies. Paratrichocladius sp. 1, Parapsetrocladius sp. 2, Parametriocnemus sp. 1., Pseudochironomus sp. and Rheotanytarsus sp. were the most abundant taxa. According to the Relative Preference Index at least 14 taxa showed strong affinity for a particular substrate. The structurally complex macrophyte Myriophyllum quitense supported 11 taxa compared with only 5 taxa found on the less complex Isoetes savatieri. Generally, stable substrates (boulders, cobbles and rooted plants) supported significantly higher chironomids richness, abundance and diversity than unstable ones (gravel-sand). Canonical Correspondence Analysis revealed that detritus (leaves, seeds biomass), macrophyte biomass, and secondarily hydraulic variables had high explanatory power on chironomids species composition and structure. This work suggest that more complex substrates showing persistence in the temporal dimension supported a diverse array of chironomids, meaning that the maintenance of the natural habitat heterogeneity is essential for the community. Land-use practices having significant effects on ecological stream attributes such as turbidity, sediment deposition, runoff patterns, will alter assemblages. Understanding environmental associations of the Chironomidae community at the habitat scale is significant for conservation purposes and for the management of low order streams in Patagonia.
Fil: Epele, Luis Beltran. Universidad Nacional de la Patagonia Austral; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Nacional Patagónico; Argentina
Fil: Miserendino, Maria Laura. Universidad Nacional de la Patagonia Austral; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Nacional Patagónico; Argentina
Fil: Brand, Cecilia. Universidad Nacional de la Patagonia Austral; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Nacional Patagónico; Argentina
Materia
MIDGES
ISOETES
MYRIOPHYLLUM
HABITAT
FLUVIAL
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:11336/9428
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/9428
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Does the nature and persistence of a substrate at a mesohabitat scale matter for Chironomidae assemblages? A study in two perennial mountain streams in Patagonia, ArgentinaEpele, Luis BeltranMiserendino, Maria LauraBrand, CeciliaMIDGESISOETESMYRIOPHYLLUMHABITATFLUVIALhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1https://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Chironomid substrate-specific associations regarding the nature (organic-inorganic) and stability (stable-unstable) of different habitats were investigated at two low order Patagonian streams, during high and low water periods. Nant y Fall and Glyn rivers were visited twice (October 2007 and March 2008) and seven different habitat types were identified. A total of 60 samples were collected using a Surber sampler (0.09 m-2 and 250 μm) and a set of 23 environmental descriptors including physicochemical parameters and different fractions of particulate organic matter were assessed. Thirty five Chironomidae taxa were recorded with Orthocladiinae (20), Chironominae (7) and Podonominae (4) being the best represented subfamilies. Paratrichocladius sp. 1, Parapsetrocladius sp. 2, Parametriocnemus sp. 1., Pseudochironomus sp. and Rheotanytarsus sp. were the most abundant taxa. According to the Relative Preference Index at least 14 taxa showed strong affinity for a particular substrate. The structurally complex macrophyte Myriophyllum quitense supported 11 taxa compared with only 5 taxa found on the less complex Isoetes savatieri. Generally, stable substrates (boulders, cobbles and rooted plants) supported significantly higher chironomids richness, abundance and diversity than unstable ones (gravel-sand). Canonical Correspondence Analysis revealed that detritus (leaves, seeds biomass), macrophyte biomass, and secondarily hydraulic variables had high explanatory power on chironomids species composition and structure. This work suggest that more complex substrates showing persistence in the temporal dimension supported a diverse array of chironomids, meaning that the maintenance of the natural habitat heterogeneity is essential for the community. Land-use practices having significant effects on ecological stream attributes such as turbidity, sediment deposition, runoff patterns, will alter assemblages. Understanding environmental associations of the Chironomidae community at the habitat scale is significant for conservation purposes and for the management of low order streams in Patagonia.Fil: Epele, Luis Beltran. Universidad Nacional de la Patagonia Austral; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Nacional Patagónico; ArgentinaFil: Miserendino, Maria Laura. Universidad Nacional de la Patagonia Austral; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Nacional Patagónico; ArgentinaFil: Brand, Cecilia. Universidad Nacional de la Patagonia Austral; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Nacional Patagónico; ArgentinaUniversity Of Arizona2012-05info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/9428Epele, Luis Beltran; Miserendino, Maria Laura; Brand, Cecilia; Does the nature and persistence of a substrate at a mesohabitat scale matter for Chironomidae assemblages? A study in two perennial mountain streams in Patagonia, Argentina; University Of Arizona; Journal Of Insect Science; 12; 5-2012; 1-191536-2442enginfo:eu-repo/semantics/altIdentifier/doi/10.1673/031.012.6801info:eu-repo/semantics/altIdentifier/url/http://jinsectscience.oxfordjournals.org/content/12/1/68info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T11:06:53Zoai:ri.conicet.gov.ar:11336/9428instacron: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 11:06:54.166CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Does the nature and persistence of a substrate at a mesohabitat scale matter for Chironomidae assemblages? A study in two perennial mountain streams in Patagonia, Argentina
title Does the nature and persistence of a substrate at a mesohabitat scale matter for Chironomidae assemblages? A study in two perennial mountain streams in Patagonia, Argentina
spellingShingle Does the nature and persistence of a substrate at a mesohabitat scale matter for Chironomidae assemblages? A study in two perennial mountain streams in Patagonia, Argentina
Epele, Luis Beltran
MIDGES
ISOETES
MYRIOPHYLLUM
HABITAT
FLUVIAL
title_short Does the nature and persistence of a substrate at a mesohabitat scale matter for Chironomidae assemblages? A study in two perennial mountain streams in Patagonia, Argentina
title_full Does the nature and persistence of a substrate at a mesohabitat scale matter for Chironomidae assemblages? A study in two perennial mountain streams in Patagonia, Argentina
title_fullStr Does the nature and persistence of a substrate at a mesohabitat scale matter for Chironomidae assemblages? A study in two perennial mountain streams in Patagonia, Argentina
title_full_unstemmed Does the nature and persistence of a substrate at a mesohabitat scale matter for Chironomidae assemblages? A study in two perennial mountain streams in Patagonia, Argentina
title_sort Does the nature and persistence of a substrate at a mesohabitat scale matter for Chironomidae assemblages? A study in two perennial mountain streams in Patagonia, Argentina
dc.creator.none.fl_str_mv Epele, Luis Beltran
Miserendino, Maria Laura
Brand, Cecilia
author Epele, Luis Beltran
author_facet Epele, Luis Beltran
Miserendino, Maria Laura
Brand, Cecilia
author_role author
author2 Miserendino, Maria Laura
Brand, Cecilia
author2_role author
author
dc.subject.none.fl_str_mv MIDGES
ISOETES
MYRIOPHYLLUM
HABITAT
FLUVIAL
topic MIDGES
ISOETES
MYRIOPHYLLUM
HABITAT
FLUVIAL
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Chironomid substrate-specific associations regarding the nature (organic-inorganic) and stability (stable-unstable) of different habitats were investigated at two low order Patagonian streams, during high and low water periods. Nant y Fall and Glyn rivers were visited twice (October 2007 and March 2008) and seven different habitat types were identified. A total of 60 samples were collected using a Surber sampler (0.09 m-2 and 250 μm) and a set of 23 environmental descriptors including physicochemical parameters and different fractions of particulate organic matter were assessed. Thirty five Chironomidae taxa were recorded with Orthocladiinae (20), Chironominae (7) and Podonominae (4) being the best represented subfamilies. Paratrichocladius sp. 1, Parapsetrocladius sp. 2, Parametriocnemus sp. 1., Pseudochironomus sp. and Rheotanytarsus sp. were the most abundant taxa. According to the Relative Preference Index at least 14 taxa showed strong affinity for a particular substrate. The structurally complex macrophyte Myriophyllum quitense supported 11 taxa compared with only 5 taxa found on the less complex Isoetes savatieri. Generally, stable substrates (boulders, cobbles and rooted plants) supported significantly higher chironomids richness, abundance and diversity than unstable ones (gravel-sand). Canonical Correspondence Analysis revealed that detritus (leaves, seeds biomass), macrophyte biomass, and secondarily hydraulic variables had high explanatory power on chironomids species composition and structure. This work suggest that more complex substrates showing persistence in the temporal dimension supported a diverse array of chironomids, meaning that the maintenance of the natural habitat heterogeneity is essential for the community. Land-use practices having significant effects on ecological stream attributes such as turbidity, sediment deposition, runoff patterns, will alter assemblages. Understanding environmental associations of the Chironomidae community at the habitat scale is significant for conservation purposes and for the management of low order streams in Patagonia.
Fil: Epele, Luis Beltran. Universidad Nacional de la Patagonia Austral; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Nacional Patagónico; Argentina
Fil: Miserendino, Maria Laura. Universidad Nacional de la Patagonia Austral; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Nacional Patagónico; Argentina
Fil: Brand, Cecilia. Universidad Nacional de la Patagonia Austral; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Nacional Patagónico; Argentina
description Chironomid substrate-specific associations regarding the nature (organic-inorganic) and stability (stable-unstable) of different habitats were investigated at two low order Patagonian streams, during high and low water periods. Nant y Fall and Glyn rivers were visited twice (October 2007 and March 2008) and seven different habitat types were identified. A total of 60 samples were collected using a Surber sampler (0.09 m-2 and 250 μm) and a set of 23 environmental descriptors including physicochemical parameters and different fractions of particulate organic matter were assessed. Thirty five Chironomidae taxa were recorded with Orthocladiinae (20), Chironominae (7) and Podonominae (4) being the best represented subfamilies. Paratrichocladius sp. 1, Parapsetrocladius sp. 2, Parametriocnemus sp. 1., Pseudochironomus sp. and Rheotanytarsus sp. were the most abundant taxa. According to the Relative Preference Index at least 14 taxa showed strong affinity for a particular substrate. The structurally complex macrophyte Myriophyllum quitense supported 11 taxa compared with only 5 taxa found on the less complex Isoetes savatieri. Generally, stable substrates (boulders, cobbles and rooted plants) supported significantly higher chironomids richness, abundance and diversity than unstable ones (gravel-sand). Canonical Correspondence Analysis revealed that detritus (leaves, seeds biomass), macrophyte biomass, and secondarily hydraulic variables had high explanatory power on chironomids species composition and structure. This work suggest that more complex substrates showing persistence in the temporal dimension supported a diverse array of chironomids, meaning that the maintenance of the natural habitat heterogeneity is essential for the community. Land-use practices having significant effects on ecological stream attributes such as turbidity, sediment deposition, runoff patterns, will alter assemblages. Understanding environmental associations of the Chironomidae community at the habitat scale is significant for conservation purposes and for the management of low order streams in Patagonia.
publishDate 2012
dc.date.none.fl_str_mv 2012-05
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/11336/9428
Epele, Luis Beltran; Miserendino, Maria Laura; Brand, Cecilia; Does the nature and persistence of a substrate at a mesohabitat scale matter for Chironomidae assemblages? A study in two perennial mountain streams in Patagonia, Argentina; University Of Arizona; Journal Of Insect Science; 12; 5-2012; 1-19
1536-2442
url http://hdl.handle.net/11336/9428
identifier_str_mv Epele, Luis Beltran; Miserendino, Maria Laura; Brand, Cecilia; Does the nature and persistence of a substrate at a mesohabitat scale matter for Chironomidae assemblages? A study in two perennial mountain streams in Patagonia, Argentina; University Of Arizona; Journal Of Insect Science; 12; 5-2012; 1-19
1536-2442
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1673/031.012.6801
info:eu-repo/semantics/altIdentifier/url/http://jinsectscience.oxfordjournals.org/content/12/1/68
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 University Of Arizona
publisher.none.fl_str_mv University Of Arizona
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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score 12.982451

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