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
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/9428
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network_name_str |
CONICET Digital (CONICET) |
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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 Técnicas2025-09-29T09:38:36Zoai: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:34982025-09-29 09:38:37.234CONICET 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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1844613221050220544 |
score |
13.070432 |