Riparian leaf litter processing by benthic macroinvertebrates in a woodland stream of central Chile Procesamiento de detritus ripariano por macroinvertebrados bentónicos en un estero boscoso de Chile central
Leaf litter input from riparian landscapes has been identified as both a major energy flow to stream ecosystems and as a food source for stream macroinvertebrates. In riparian landscapes of woodland streams of central Chile, the native deciduous hardwoods are being artificially replaced by exotic co...
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ftdoajarticles:oai:doaj.org/article:9cc39452e93b4d9c80cd822be6db48ed 2023-05-15T13:44:03+02:00 Riparian leaf litter processing by benthic macroinvertebrates in a woodland stream of central Chile Procesamiento de detritus ripariano por macroinvertebrados bentónicos en un estero boscoso de Chile central CLAUDIO VALDOVINOS 2001-06-01T00:00:00Z https://doaj.org/article/9cc39452e93b4d9c80cd822be6db48ed EN eng BMC http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2001000200018 https://doaj.org/toc/0716-078X https://doaj.org/toc/0717-6317 0716-078X 0717-6317 https://doaj.org/article/9cc39452e93b4d9c80cd822be6db48ed Revista Chilena de Historia Natural, Vol 74, Iss 2, Pp 445-453 (2001) macroinvertebrados procesamiento de hojas ecosistema fluvial Chile plantaciones exóticas vegetación riparina macroinvertebrates leaf processing stream ecosystem exotic plantations riparian vegetation Zoology QL1-991 Botany QK1-989 article 2001 ftdoajarticles 2022-12-31T07:20:21Z Leaf litter input from riparian landscapes has been identified as both a major energy flow to stream ecosystems and as a food source for stream macroinvertebrates. In riparian landscapes of woodland streams of central Chile, the native deciduous hardwoods are being artificially replaced by exotic coniferous trees at a large spatial scale. It is suggested that this process has a significant impact on the stream communities of central Chile. Today, exotic plantations occur throughout central Chile, with Pinus radiata (D. Don) (Monterrey pine) accounting for about 80 % of the more than 1,800,000 ha of exotic forests. The objective of this paper was to analyze the effect of the litter beds of a dominant native species (Nothofagus pumilio) and an exotic species (P. radiata) on the detritus processing carried out by benthic macroinvertebrates, in an experimental catchment of central Chile (Rucúe Creek; 36° 26'00" S, 71° 35'40" W). Results revealed that processing rates of native leaf packs are higher than rates of coniferous leaf packs, suggesting that the replacement of the native hardwoods by exotic coniferous riparian flora has an important impact on the stream energy flow in central Chile. The decay rate coefficients (k) were 0.0072 for N. pumilio, and 0.0027 for P. radiata. The greater abundance and biomass of shredders per gram of leaf pack of native Nothofagus would explain the differences in leaf processing rates, especially through the activity of two Plecoptera Gripopterygidae, Limnoperla jaffueli and Antarctoperla michaelseni La entrada de detritus foliar procedente de áreas riparianas ha sido reconocido como un componente importante en la energética de ecosistemas fluviales y como fuente de alimento de macroinvertebrados acuáticos. En áreas riparianas de esteros boscosos de Chile central los componentes nativos caducifolios están siendo artificialmente reemplazados a gran escala por coníferas exóticas, sugiriendo que este proceso tiene un importante impacto sobre las características energéticas de las ... Article in Journal/Newspaper Antarc* Directory of Open Access Journals: DOAJ Articles Entrada ENVELOPE(-60.552,-60.552,-62.998,-62.998) |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
macroinvertebrados procesamiento de hojas ecosistema fluvial Chile plantaciones exóticas vegetación riparina macroinvertebrates leaf processing stream ecosystem exotic plantations riparian vegetation Zoology QL1-991 Botany QK1-989 |
spellingShingle |
macroinvertebrados procesamiento de hojas ecosistema fluvial Chile plantaciones exóticas vegetación riparina macroinvertebrates leaf processing stream ecosystem exotic plantations riparian vegetation Zoology QL1-991 Botany QK1-989 CLAUDIO VALDOVINOS Riparian leaf litter processing by benthic macroinvertebrates in a woodland stream of central Chile Procesamiento de detritus ripariano por macroinvertebrados bentónicos en un estero boscoso de Chile central |
topic_facet |
macroinvertebrados procesamiento de hojas ecosistema fluvial Chile plantaciones exóticas vegetación riparina macroinvertebrates leaf processing stream ecosystem exotic plantations riparian vegetation Zoology QL1-991 Botany QK1-989 |
description |
Leaf litter input from riparian landscapes has been identified as both a major energy flow to stream ecosystems and as a food source for stream macroinvertebrates. In riparian landscapes of woodland streams of central Chile, the native deciduous hardwoods are being artificially replaced by exotic coniferous trees at a large spatial scale. It is suggested that this process has a significant impact on the stream communities of central Chile. Today, exotic plantations occur throughout central Chile, with Pinus radiata (D. Don) (Monterrey pine) accounting for about 80 % of the more than 1,800,000 ha of exotic forests. The objective of this paper was to analyze the effect of the litter beds of a dominant native species (Nothofagus pumilio) and an exotic species (P. radiata) on the detritus processing carried out by benthic macroinvertebrates, in an experimental catchment of central Chile (Rucúe Creek; 36° 26'00" S, 71° 35'40" W). Results revealed that processing rates of native leaf packs are higher than rates of coniferous leaf packs, suggesting that the replacement of the native hardwoods by exotic coniferous riparian flora has an important impact on the stream energy flow in central Chile. The decay rate coefficients (k) were 0.0072 for N. pumilio, and 0.0027 for P. radiata. The greater abundance and biomass of shredders per gram of leaf pack of native Nothofagus would explain the differences in leaf processing rates, especially through the activity of two Plecoptera Gripopterygidae, Limnoperla jaffueli and Antarctoperla michaelseni La entrada de detritus foliar procedente de áreas riparianas ha sido reconocido como un componente importante en la energética de ecosistemas fluviales y como fuente de alimento de macroinvertebrados acuáticos. En áreas riparianas de esteros boscosos de Chile central los componentes nativos caducifolios están siendo artificialmente reemplazados a gran escala por coníferas exóticas, sugiriendo que este proceso tiene un importante impacto sobre las características energéticas de las ... |
format |
Article in Journal/Newspaper |
author |
CLAUDIO VALDOVINOS |
author_facet |
CLAUDIO VALDOVINOS |
author_sort |
CLAUDIO VALDOVINOS |
title |
Riparian leaf litter processing by benthic macroinvertebrates in a woodland stream of central Chile Procesamiento de detritus ripariano por macroinvertebrados bentónicos en un estero boscoso de Chile central |
title_short |
Riparian leaf litter processing by benthic macroinvertebrates in a woodland stream of central Chile Procesamiento de detritus ripariano por macroinvertebrados bentónicos en un estero boscoso de Chile central |
title_full |
Riparian leaf litter processing by benthic macroinvertebrates in a woodland stream of central Chile Procesamiento de detritus ripariano por macroinvertebrados bentónicos en un estero boscoso de Chile central |
title_fullStr |
Riparian leaf litter processing by benthic macroinvertebrates in a woodland stream of central Chile Procesamiento de detritus ripariano por macroinvertebrados bentónicos en un estero boscoso de Chile central |
title_full_unstemmed |
Riparian leaf litter processing by benthic macroinvertebrates in a woodland stream of central Chile Procesamiento de detritus ripariano por macroinvertebrados bentónicos en un estero boscoso de Chile central |
title_sort |
riparian leaf litter processing by benthic macroinvertebrates in a woodland stream of central chile procesamiento de detritus ripariano por macroinvertebrados bentónicos en un estero boscoso de chile central |
publisher |
BMC |
publishDate |
2001 |
url |
https://doaj.org/article/9cc39452e93b4d9c80cd822be6db48ed |
long_lat |
ENVELOPE(-60.552,-60.552,-62.998,-62.998) |
geographic |
Entrada |
geographic_facet |
Entrada |
genre |
Antarc* |
genre_facet |
Antarc* |
op_source |
Revista Chilena de Historia Natural, Vol 74, Iss 2, Pp 445-453 (2001) |
op_relation |
http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2001000200018 https://doaj.org/toc/0716-078X https://doaj.org/toc/0717-6317 0716-078X 0717-6317 https://doaj.org/article/9cc39452e93b4d9c80cd822be6db48ed |
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1766196428720308224 |