Food web of a tropical high mountain stream: effects of nutrient addition

and lt;!-- @page { margin: 2cm } P { margin-bottom: 0.21cm } -- and gt; Using a nutrient enrichment experiment in an Andean mountain stream, we used stable isotope ratios (15N and 13C) to analyze different trophic compartments: 1) basal level: CPOM and biofilm; 2) primary consumers – macroinverteb...

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Autores:
Castro-Rebolledo, María Isabel
Muñoz Gracia, Isabel
Donato, John
Tipo de recurso:
Article of journal
Fecha de publicación:
2014
Institución:
Universidad Nacional de Colombia
Repositorio:
Universidad Nacional de Colombia
Idioma:
spa
OAI Identifier:
oai:repositorio.unal.edu.co:unal/72511
Acceso en línea:
https://repositorio.unal.edu.co/handle/unal/72511
http://bdigital.unal.edu.co/36984/
http://bdigital.unal.edu.co/36984/2/
Palabra clave:
food webs
nutrient enrichment
isotope ratios
trophic compartments
gut content.
Rights
openAccess
License
Atribución-NoComercial 4.0 Internacional
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oai_identifier_str oai:repositorio.unal.edu.co:unal/72511
network_acronym_str UNACIONAL2
network_name_str Universidad Nacional de Colombia
repository_id_str
spelling Atribución-NoComercial 4.0 InternacionalDerechos reservados - Universidad Nacional de Colombiahttp://creativecommons.org/licenses/by-nc/4.0/info:eu-repo/semantics/openAccesshttp://purl.org/coar/access_right/c_abf2Castro-Rebolledo, María Isabela4c7c583-ab39-4fa0-baf9-ff783f4e98b3300Muñoz Gracia, Isabel4f7fa8f8-b983-4eb7-bffd-b901c2187000300Donato, Johnee80858c-79f4-45c8-994a-2538e27c3d203002019-07-03T15:15:50Z2019-07-03T15:15:50Z2014https://repositorio.unal.edu.co/handle/unal/72511http://bdigital.unal.edu.co/36984/http://bdigital.unal.edu.co/36984/2/and lt;!-- @page { margin: 2cm } P { margin-bottom: 0.21cm } -- and gt; Using a nutrient enrichment experiment in an Andean mountain stream, we used stable isotope ratios (15N and 13C) to analyze different trophic compartments: 1) basal level: CPOM and biofilm; 2) primary consumers – macroinvertebrates: collector-gatherers(Heterelmissp, Thraulodessp andTrichorythodessp), and collector-filterers (Simuliumsp); 3) predators – fish (Oncorhynchusmykiss and Trichomycterusbogotensis).The average fractionation of nitrogen among the primary consumers with respect to CPOM was 4.7‰ and 1.7‰ with respect to biofilm. Predators incrementedtheir15N signalby 5.9% with respect to primary consumers.A depletion of15N was observed in Impact with respect tocontrol reach after fertilization in different compartments (biofilm, Heterelmissp., Simuliumsp. andTricorythodessp.), while depletion was not significant for top predators. In most cases, the 13C signal of biofilm overlapped with that of primary consumers, but a clear enrichment was observed with respect to CPOM.The macroinvertebrates referred to were selected to analyze their gut content and the results showed us that fine detritus is the most abundant food in invertebrates, and onlyHeterelmis sp. showed significant differences in fine detritus and vegetal matter between control and impact reaches after the nutrient addition.application/pdfspaUniversidad Nacional de Colombia, Facultad de Ciencias, Departamento de Biologíahttp://revistas.unal.edu.co/index.php/actabiol/article/view/38265Universidad Nacional de Colombia Revistas electrónicas UN Acta Biológica ColombianaActa Biológica ColombianaActa Biológica Colombiana; Vol. 19, núm. 1 (2014); 34-42 Acta Biológica Colombiana; Vol. 19, núm. 1 (2014); 34-42 1900-1649 0120-548XCastro-Rebolledo, María Isabel and Muñoz Gracia, Isabel and Donato, John (2014) Food web of a tropical high mountain stream: effects of nutrient addition. Acta Biológica Colombiana; Vol. 19, núm. 1 (2014); 34-42 Acta Biológica Colombiana; Vol. 19, núm. 1 (2014); 34-42 1900-1649 0120-548X .Food web of a tropical high mountain stream: effects of nutrient additionArtículo de revistainfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501http://purl.org/coar/resource_type/c_2df8fbb1http://purl.org/coar/version/c_970fb48d4fbd8a85Texthttp://purl.org/redcol/resource_type/ARTfood websnutrient enrichmentisotope ratiostrophic compartmentsgut content.ORIGINAL38265-185604-2-PB.pdfapplication/pdf467984https://repositorio.unal.edu.co/bitstream/unal/72511/1/38265-185604-2-PB.pdf9b34e05192e5c924e0e12d486a8db3a9MD51THUMBNAIL38265-185604-2-PB.pdf.jpg38265-185604-2-PB.pdf.jpgGenerated Thumbnailimage/jpeg8703https://repositorio.unal.edu.co/bitstream/unal/72511/2/38265-185604-2-PB.pdf.jpg2254d2b9822bbc14ce2e54279db14fd6MD52unal/72511oai:repositorio.unal.edu.co:unal/725112024-06-16 23:11:55.074Repositorio Institucional Universidad Nacional de Colombiarepositorio_nal@unal.edu.co
dc.title.spa.fl_str_mv Food web of a tropical high mountain stream: effects of nutrient addition
title Food web of a tropical high mountain stream: effects of nutrient addition
spellingShingle Food web of a tropical high mountain stream: effects of nutrient addition
food webs
nutrient enrichment
isotope ratios
trophic compartments
gut content.
title_short Food web of a tropical high mountain stream: effects of nutrient addition
title_full Food web of a tropical high mountain stream: effects of nutrient addition
title_fullStr Food web of a tropical high mountain stream: effects of nutrient addition
title_full_unstemmed Food web of a tropical high mountain stream: effects of nutrient addition
title_sort Food web of a tropical high mountain stream: effects of nutrient addition
dc.creator.fl_str_mv Castro-Rebolledo, María Isabel
Muñoz Gracia, Isabel
Donato, John
dc.contributor.author.spa.fl_str_mv Castro-Rebolledo, María Isabel
Muñoz Gracia, Isabel
Donato, John
dc.subject.proposal.spa.fl_str_mv food webs
nutrient enrichment
isotope ratios
trophic compartments
gut content.
topic food webs
nutrient enrichment
isotope ratios
trophic compartments
gut content.
description and lt;!-- @page { margin: 2cm } P { margin-bottom: 0.21cm } -- and gt; Using a nutrient enrichment experiment in an Andean mountain stream, we used stable isotope ratios (15N and 13C) to analyze different trophic compartments: 1) basal level: CPOM and biofilm; 2) primary consumers – macroinvertebrates: collector-gatherers(Heterelmissp, Thraulodessp andTrichorythodessp), and collector-filterers (Simuliumsp); 3) predators – fish (Oncorhynchusmykiss and Trichomycterusbogotensis).The average fractionation of nitrogen among the primary consumers with respect to CPOM was 4.7‰ and 1.7‰ with respect to biofilm. Predators incrementedtheir15N signalby 5.9% with respect to primary consumers.A depletion of15N was observed in Impact with respect tocontrol reach after fertilization in different compartments (biofilm, Heterelmissp., Simuliumsp. andTricorythodessp.), while depletion was not significant for top predators. In most cases, the 13C signal of biofilm overlapped with that of primary consumers, but a clear enrichment was observed with respect to CPOM.The macroinvertebrates referred to were selected to analyze their gut content and the results showed us that fine detritus is the most abundant food in invertebrates, and onlyHeterelmis sp. showed significant differences in fine detritus and vegetal matter between control and impact reaches after the nutrient addition.
publishDate 2014
dc.date.issued.spa.fl_str_mv 2014
dc.date.accessioned.spa.fl_str_mv 2019-07-03T15:15:50Z
dc.date.available.spa.fl_str_mv 2019-07-03T15:15:50Z
dc.type.spa.fl_str_mv Artículo de revista
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format http://purl.org/coar/resource_type/c_6501
status_str publishedVersion
dc.identifier.uri.none.fl_str_mv https://repositorio.unal.edu.co/handle/unal/72511
dc.identifier.eprints.spa.fl_str_mv http://bdigital.unal.edu.co/36984/
http://bdigital.unal.edu.co/36984/2/
url https://repositorio.unal.edu.co/handle/unal/72511
http://bdigital.unal.edu.co/36984/
http://bdigital.unal.edu.co/36984/2/
dc.language.iso.spa.fl_str_mv spa
language spa
dc.relation.spa.fl_str_mv http://revistas.unal.edu.co/index.php/actabiol/article/view/38265
dc.relation.ispartof.spa.fl_str_mv Universidad Nacional de Colombia Revistas electrónicas UN Acta Biológica Colombiana
Acta Biológica Colombiana
dc.relation.ispartofseries.none.fl_str_mv Acta Biológica Colombiana; Vol. 19, núm. 1 (2014); 34-42 Acta Biológica Colombiana; Vol. 19, núm. 1 (2014); 34-42 1900-1649 0120-548X
dc.relation.references.spa.fl_str_mv Castro-Rebolledo, María Isabel and Muñoz Gracia, Isabel and Donato, John (2014) Food web of a tropical high mountain stream: effects of nutrient addition. Acta Biológica Colombiana; Vol. 19, núm. 1 (2014); 34-42 Acta Biológica Colombiana; Vol. 19, núm. 1 (2014); 34-42 1900-1649 0120-548X .
dc.rights.spa.fl_str_mv Derechos reservados - Universidad Nacional de Colombia
dc.rights.coar.fl_str_mv http://purl.org/coar/access_right/c_abf2
dc.rights.license.spa.fl_str_mv Atribución-NoComercial 4.0 Internacional
dc.rights.uri.spa.fl_str_mv http://creativecommons.org/licenses/by-nc/4.0/
dc.rights.accessrights.spa.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv Atribución-NoComercial 4.0 Internacional
Derechos reservados - Universidad Nacional de Colombia
http://creativecommons.org/licenses/by-nc/4.0/
http://purl.org/coar/access_right/c_abf2
eu_rights_str_mv openAccess
dc.format.mimetype.spa.fl_str_mv application/pdf
dc.publisher.spa.fl_str_mv Universidad Nacional de Colombia, Facultad de Ciencias, Departamento de Biología
institution Universidad Nacional de Colombia
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repository.name.fl_str_mv Repositorio Institucional Universidad Nacional de Colombia
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