Sub-Antarctic streams break the rules: functional feeding groups along watershed gradients with and without urban impact
- Autores
- Tagliaferro, Marina Beatriz; Anderson, Christopher Brian; Boy, Claudia Clementina
- Año de publicación
- 2021
- Idioma
- español castellano
- Tipo de recurso
- documento de conferencia
- Estado
- versión publicada
- Descripción
- The River Continuum Concept (RCC) has been widely used to understand the relationship between abiotic conditions, basal resources and aquatic communities, including longitudinal patterns of benthic macroinvertebrate functional feeding groups (FFG). However, the RCC has been quested for southern hemisphere temperate streams, and we asked whether it applies to sub-Antarctic streams in southern Patagonia. We studied FFG assemblages in Fuegian stream gradients with urbanization and reference conditions (?type?). We assessed physicochemical characteristics and basal resources in 6 streams (54°50' S, 68° W). We measured FFG abundance with 4-5 benthic samples using a Surber net (450 um mesh) in each watershed?s upper, mid and lower reaches (N = 85). We conducted ANOVAs and perMANOVAs to evaluate differences due to stream type and reach on the proportion of each FFG and overall FFG assemblage, respectively. Urban streams had lower canopy cover, dissolved oxygen, and substrate size and higher temperature and nutrient concentration, compared to Reference streams. The overall assemblage differed among stream reaches and type. While RCC hypothesized higher proportion of shredders in headwaters, scraper in mid-, and collector-filterers in lower-waters, In Reference reaches, shredders were more abundant in midstream, and no differences were found for the other FFGs between reaches In Urban streams, collectors-gatherers were more abundant downstream; scrapers increased towards midstream, decreasing downstream, and collector-filterers had the greatest abundance upstream. Moreover, shredders were more abundant in Urban streams, and collector-filterers in Ref streams. FFG distribution in Fuegian streams differed from the expectations of the RCC, which relies on gradients in basal resources. This might be due to extreme upstream conditions (e.g., low temperature and nutrient concentrations). Moreover, although collector-gatherers had similar proportion comparing downstream areas between RCC and Urban streams, it might be consequence of the availability of resources (RCC) and their tolerance to urban conditions (unexpected in RCC).
Fil: Tagliaferro, Marina Beatriz. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina
Fil: Anderson, Christopher Brian. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina
Fil: Boy, Claudia Clementina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina
V Congreso Latinoamericano de Macroinvertebrados y Ecosistemas Acuáticos
Panamá
Instituto Conmemorativo Gorgas de Estudios de la Salud
Universidad de Panamá
Comité de Biomonitoreo de la Red Analítica de Latino América y el Caribe - Materia
-
TIERRA DEL FUEGO
URBANIZATION
LONGITUDINAL DISTRIBUTION
MACROINVERTEBRATES - 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:11336/185007
Ver los metadatos del registro completo
id |
CONICETDig_c27f4bef26704ba91e64ef4b827e0a3c |
---|---|
oai_identifier_str |
oai:ri.conicet.gov.ar:11336/185007 |
network_acronym_str |
CONICETDig |
repository_id_str |
3498 |
network_name_str |
CONICET Digital (CONICET) |
spelling |
Sub-Antarctic streams break the rules: functional feeding groups along watershed gradients with and without urban impactTagliaferro, Marina BeatrizAnderson, Christopher BrianBoy, Claudia ClementinaTIERRA DEL FUEGOURBANIZATIONLONGITUDINAL DISTRIBUTIONMACROINVERTEBRATEShttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1https://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1The River Continuum Concept (RCC) has been widely used to understand the relationship between abiotic conditions, basal resources and aquatic communities, including longitudinal patterns of benthic macroinvertebrate functional feeding groups (FFG). However, the RCC has been quested for southern hemisphere temperate streams, and we asked whether it applies to sub-Antarctic streams in southern Patagonia. We studied FFG assemblages in Fuegian stream gradients with urbanization and reference conditions (?type?). We assessed physicochemical characteristics and basal resources in 6 streams (54°50' S, 68° W). We measured FFG abundance with 4-5 benthic samples using a Surber net (450 um mesh) in each watershed?s upper, mid and lower reaches (N = 85). We conducted ANOVAs and perMANOVAs to evaluate differences due to stream type and reach on the proportion of each FFG and overall FFG assemblage, respectively. Urban streams had lower canopy cover, dissolved oxygen, and substrate size and higher temperature and nutrient concentration, compared to Reference streams. The overall assemblage differed among stream reaches and type. While RCC hypothesized higher proportion of shredders in headwaters, scraper in mid-, and collector-filterers in lower-waters, In Reference reaches, shredders were more abundant in midstream, and no differences were found for the other FFGs between reaches In Urban streams, collectors-gatherers were more abundant downstream; scrapers increased towards midstream, decreasing downstream, and collector-filterers had the greatest abundance upstream. Moreover, shredders were more abundant in Urban streams, and collector-filterers in Ref streams. FFG distribution in Fuegian streams differed from the expectations of the RCC, which relies on gradients in basal resources. This might be due to extreme upstream conditions (e.g., low temperature and nutrient concentrations). Moreover, although collector-gatherers had similar proportion comparing downstream areas between RCC and Urban streams, it might be consequence of the availability of resources (RCC) and their tolerance to urban conditions (unexpected in RCC).Fil: Tagliaferro, Marina Beatriz. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; ArgentinaFil: Anderson, Christopher Brian. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; ArgentinaFil: Boy, Claudia Clementina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; ArgentinaV Congreso Latinoamericano de Macroinvertebrados y Ecosistemas AcuáticosPanamáInstituto Conmemorativo Gorgas de Estudios de la SaludUniversidad de PanamáComité de Biomonitoreo de la Red Analítica de Latino América y el CaribeInstituto Conmemorativo Gorgas de Estudios de la SaludCornejo, Aydee2021info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObjectCongresoBookhttp://purl.org/coar/resource_type/c_5794info:ar-repo/semantics/documentoDeConferenciaapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/185007Sub-Antarctic streams break the rules: functional feeding groups along watershed gradients with and without urban impact; V Congreso Latinoamericano de Macroinvertebrados y Ecosistemas Acuáticos; Panamá; 2021CONICET DigitalCONICETspainfo:eu-repo/semantics/altIdentifier/url/https://drive.google.com/file/d/1pDMtnwisG5XIYPgFap-pyVUuOwhqQPFd/viewInternacionalinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:38:47Zoai:ri.conicet.gov.ar:11336/185007instacron: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 09:38:47.706CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Sub-Antarctic streams break the rules: functional feeding groups along watershed gradients with and without urban impact |
title |
Sub-Antarctic streams break the rules: functional feeding groups along watershed gradients with and without urban impact |
spellingShingle |
Sub-Antarctic streams break the rules: functional feeding groups along watershed gradients with and without urban impact Tagliaferro, Marina Beatriz TIERRA DEL FUEGO URBANIZATION LONGITUDINAL DISTRIBUTION MACROINVERTEBRATES |
title_short |
Sub-Antarctic streams break the rules: functional feeding groups along watershed gradients with and without urban impact |
title_full |
Sub-Antarctic streams break the rules: functional feeding groups along watershed gradients with and without urban impact |
title_fullStr |
Sub-Antarctic streams break the rules: functional feeding groups along watershed gradients with and without urban impact |
title_full_unstemmed |
Sub-Antarctic streams break the rules: functional feeding groups along watershed gradients with and without urban impact |
title_sort |
Sub-Antarctic streams break the rules: functional feeding groups along watershed gradients with and without urban impact |
dc.creator.none.fl_str_mv |
Tagliaferro, Marina Beatriz Anderson, Christopher Brian Boy, Claudia Clementina |
author |
Tagliaferro, Marina Beatriz |
author_facet |
Tagliaferro, Marina Beatriz Anderson, Christopher Brian Boy, Claudia Clementina |
author_role |
author |
author2 |
Anderson, Christopher Brian Boy, Claudia Clementina |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
Cornejo, Aydee |
dc.subject.none.fl_str_mv |
TIERRA DEL FUEGO URBANIZATION LONGITUDINAL DISTRIBUTION MACROINVERTEBRATES |
topic |
TIERRA DEL FUEGO URBANIZATION LONGITUDINAL DISTRIBUTION MACROINVERTEBRATES |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.5 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 |
The River Continuum Concept (RCC) has been widely used to understand the relationship between abiotic conditions, basal resources and aquatic communities, including longitudinal patterns of benthic macroinvertebrate functional feeding groups (FFG). However, the RCC has been quested for southern hemisphere temperate streams, and we asked whether it applies to sub-Antarctic streams in southern Patagonia. We studied FFG assemblages in Fuegian stream gradients with urbanization and reference conditions (?type?). We assessed physicochemical characteristics and basal resources in 6 streams (54°50' S, 68° W). We measured FFG abundance with 4-5 benthic samples using a Surber net (450 um mesh) in each watershed?s upper, mid and lower reaches (N = 85). We conducted ANOVAs and perMANOVAs to evaluate differences due to stream type and reach on the proportion of each FFG and overall FFG assemblage, respectively. Urban streams had lower canopy cover, dissolved oxygen, and substrate size and higher temperature and nutrient concentration, compared to Reference streams. The overall assemblage differed among stream reaches and type. While RCC hypothesized higher proportion of shredders in headwaters, scraper in mid-, and collector-filterers in lower-waters, In Reference reaches, shredders were more abundant in midstream, and no differences were found for the other FFGs between reaches In Urban streams, collectors-gatherers were more abundant downstream; scrapers increased towards midstream, decreasing downstream, and collector-filterers had the greatest abundance upstream. Moreover, shredders were more abundant in Urban streams, and collector-filterers in Ref streams. FFG distribution in Fuegian streams differed from the expectations of the RCC, which relies on gradients in basal resources. This might be due to extreme upstream conditions (e.g., low temperature and nutrient concentrations). Moreover, although collector-gatherers had similar proportion comparing downstream areas between RCC and Urban streams, it might be consequence of the availability of resources (RCC) and their tolerance to urban conditions (unexpected in RCC). Fil: Tagliaferro, Marina Beatriz. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina Fil: Anderson, Christopher Brian. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina Fil: Boy, Claudia Clementina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina V Congreso Latinoamericano de Macroinvertebrados y Ecosistemas Acuáticos Panamá Instituto Conmemorativo Gorgas de Estudios de la Salud Universidad de Panamá Comité de Biomonitoreo de la Red Analítica de Latino América y el Caribe |
description |
The River Continuum Concept (RCC) has been widely used to understand the relationship between abiotic conditions, basal resources and aquatic communities, including longitudinal patterns of benthic macroinvertebrate functional feeding groups (FFG). However, the RCC has been quested for southern hemisphere temperate streams, and we asked whether it applies to sub-Antarctic streams in southern Patagonia. We studied FFG assemblages in Fuegian stream gradients with urbanization and reference conditions (?type?). We assessed physicochemical characteristics and basal resources in 6 streams (54°50' S, 68° W). We measured FFG abundance with 4-5 benthic samples using a Surber net (450 um mesh) in each watershed?s upper, mid and lower reaches (N = 85). We conducted ANOVAs and perMANOVAs to evaluate differences due to stream type and reach on the proportion of each FFG and overall FFG assemblage, respectively. Urban streams had lower canopy cover, dissolved oxygen, and substrate size and higher temperature and nutrient concentration, compared to Reference streams. The overall assemblage differed among stream reaches and type. While RCC hypothesized higher proportion of shredders in headwaters, scraper in mid-, and collector-filterers in lower-waters, In Reference reaches, shredders were more abundant in midstream, and no differences were found for the other FFGs between reaches In Urban streams, collectors-gatherers were more abundant downstream; scrapers increased towards midstream, decreasing downstream, and collector-filterers had the greatest abundance upstream. Moreover, shredders were more abundant in Urban streams, and collector-filterers in Ref streams. FFG distribution in Fuegian streams differed from the expectations of the RCC, which relies on gradients in basal resources. This might be due to extreme upstream conditions (e.g., low temperature and nutrient concentrations). Moreover, although collector-gatherers had similar proportion comparing downstream areas between RCC and Urban streams, it might be consequence of the availability of resources (RCC) and their tolerance to urban conditions (unexpected in RCC). |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/publishedVersion info:eu-repo/semantics/conferenceObject Congreso Book http://purl.org/coar/resource_type/c_5794 info:ar-repo/semantics/documentoDeConferencia |
status_str |
publishedVersion |
format |
conferenceObject |
dc.identifier.none.fl_str_mv |
http://hdl.handle.net/11336/185007 Sub-Antarctic streams break the rules: functional feeding groups along watershed gradients with and without urban impact; V Congreso Latinoamericano de Macroinvertebrados y Ecosistemas Acuáticos; Panamá; 2021 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/185007 |
identifier_str_mv |
Sub-Antarctic streams break the rules: functional feeding groups along watershed gradients with and without urban impact; V Congreso Latinoamericano de Macroinvertebrados y Ecosistemas Acuáticos; Panamá; 2021 CONICET Digital CONICET |
dc.language.none.fl_str_mv |
spa |
language |
spa |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/url/https://drive.google.com/file/d/1pDMtnwisG5XIYPgFap-pyVUuOwhqQPFd/view |
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 application/pdf |
dc.coverage.none.fl_str_mv |
Internacional |
dc.publisher.none.fl_str_mv |
Instituto Conmemorativo Gorgas de Estudios de la Salud |
publisher.none.fl_str_mv |
Instituto Conmemorativo Gorgas de Estudios de la Salud |
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 |
_version_ |
1844613227114135552 |
score |
13.070432 |