FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2022651580> ?p ?o ?g. }

• W2022651580 endingPage "164" @default.
• W2022651580 startingPage "138" @default.
• W2022651580 abstract "To assess the role of macrofauna consumers in organic matter dynamics of headwater streams, we applied seasonal insecticide treatments to a southern Appalachian Mountain stream and compared benthic community structure between this and two other streams. Production was estimated in the two major habitats: mixed cobble-gravel-sand substrate and bedrock outcrop. Using the proportional availability of the habitats in each stream, production over the entire stream was measured. Annual habitat-weighted production in the untreated streams during the two study years ranged from 8.9 to 14.0 g AFDM m^-2 yr^-1, 81 to 86% of which was attributed to insects. Habitat-weighted production was distributed rather evenly among the collector-gatherer (32-41%), shredder (23-31%), and predator (28-33%) functional groups. Collector-filterer and scraper groups accounted for less than 9% of total habitat-weighted production in all three streams. Insecticide applications resulted in dramatic changes in the macrofaunal community. Annual habitat-weighted production (4.4 g m^-2 yr^-1) in the treated stream decreased by 62% from Yr 1 to Yr 2, with insects contributing only 45% to total production. Oligochaetes, several Diptera, dragonflies, and copepods composed most of the production during treatment. Although habitat-weighted production of all functional groups was lower in the treatment year than in the pre-treatment year, collector-gatherer production decreased the least (21% reduction) and dominated overall production during treatment. Production of the other functional groups decreased by 71-94% between the two years. The changes in macrofaunal community structure and production observed in the insecticide treated stream were much greater than between-year changes in the reference stream, despite the occurrence of a record drought in Yr 2. The effect of the two different disturbances on overall production differed not only in magnitude but also in direction, with production in the reference stream increasing (12% over Yr 1) during the drought year. Resource ingestion was estimated using values of functional group production. Estimates of ingestion suggested that the major functional groups were ingesting a fairly large portion of available resources in the untreated streams. Collector-gatherers consumed 34-64% of total annual habitat-weighted fine particulate organic matter. Shredders consumed an estimated 28-47% of average annual standing crop of leaves, and predators ingested 67-79% of total macrofaunal production. Insecticide treatments resulted in much lower levels of resource ingestion: 26%, 4%, and 50% for collector-gatherers, shredders, and predators, respectively. Our results show the importance of using estimates of production when assessing disturbance effects on macrofaunal communities, since abundances greatly underestimated the impact of insecticide treatments. Biomass estimates, though providing better measures of disturbance than abundances, tended to overestimate overall macrofaunal losses because of the disproportionate influence of large, slow growing taxa such as crayfish." @default.
• W2022651580 created "2016-06-24" @default.
• W2022651580 creator A5002224696 @default.
• W2022651580 creator A5047110112 @default.
• W2022651580 date "1992-06-01" @default.
• W2022651580 modified "2023-10-17" @default.
• W2022651580 title "Effects of Disturbance on Benthic Functional Structure and Production in Mountain Streams" @default.
• W2022651580 cites W136881109 @default.
• W2022651580 cites W1507040980 @default.
• W2022651580 cites W1583033464 @default.
• W2022651580 cites W1982388417 @default.
• W2022651580 cites W1983487302 @default.
• W2022651580 cites W1985475500 @default.
• W2022651580 cites W1989897679 @default.
• W2022651580 cites W199003276 @default.
• W2022651580 cites W1991513080 @default.
• W2022651580 cites W1998439937 @default.
• W2022651580 cites W1999798095 @default.
• W2022651580 cites W2006032940 @default.
• W2022651580 cites W2008937226 @default.
• W2022651580 cites W2010636417 @default.
• W2022651580 cites W2013775905 @default.
• W2022651580 cites W2015345446 @default.
• W2022651580 cites W2018015182 @default.
• W2022651580 cites W2033079627 @default.
• W2022651580 cites W2034207651 @default.
• W2022651580 cites W2035703045 @default.
• W2022651580 cites W2039806614 @default.
• W2022651580 cites W2045625270 @default.
• W2022651580 cites W2049264879 @default.
• W2022651580 cites W2052175999 @default.
• W2022651580 cites W2054866879 @default.
• W2022651580 cites W2068316763 @default.
• W2022651580 cites W2075059112 @default.
• W2022651580 cites W2075876292 @default.
• W2022651580 cites W2077353028 @default.
• W2022651580 cites W2078781279 @default.
• W2022651580 cites W2094963182 @default.
• W2022651580 cites W2098971963 @default.
• W2022651580 cites W2099327346 @default.
• W2022651580 cites W2101417242 @default.
• W2022651580 cites W2102006272 @default.
• W2022651580 cites W2116544104 @default.
• W2022651580 cites W2116916257 @default.
• W2022651580 cites W2120927799 @default.
• W2022651580 cites W2136723392 @default.
• W2022651580 cites W2139152997 @default.
• W2022651580 cites W2139820475 @default.
• W2022651580 cites W2143065405 @default.
• W2022651580 cites W2148120228 @default.
• W2022651580 cites W2149380145 @default.
• W2022651580 cites W2151770077 @default.
• W2022651580 cites W2152100577 @default.
• W2022651580 cites W2152691165 @default.
• W2022651580 cites W2165900157 @default.
• W2022651580 cites W2169934922 @default.
• W2022651580 cites W2292002521 @default.
• W2022651580 cites W2312317672 @default.
• W2022651580 cites W2334346759 @default.
• W2022651580 cites W48189206 @default.
• W2022651580 cites W582098603 @default.
• W2022651580 doi "https://doi.org/10.2307/1467381" @default.
• W2022651580 hasPublicationYear "1992" @default.
• W2022651580 type Work @default.
• W2022651580 sameAs 2022651580 @default.
• W2022651580 citedByCount "145" @default.
• W2022651580 countsByYear W20226515802012 @default.
• W2022651580 countsByYear W20226515802013 @default.
• W2022651580 countsByYear W20226515802014 @default.
• W2022651580 countsByYear W20226515802015 @default.
• W2022651580 countsByYear W20226515802016 @default.
• W2022651580 countsByYear W20226515802017 @default.
• W2022651580 countsByYear W20226515802018 @default.
• W2022651580 countsByYear W20226515802019 @default.
• W2022651580 countsByYear W20226515802020 @default.
• W2022651580 countsByYear W20226515802021 @default.
• W2022651580 countsByYear W20226515802022 @default.
• W2022651580 countsByYear W20226515802023 @default.
• W2022651580 crossrefType "journal-article" @default.
• W2022651580 hasAuthorship W2022651580A5002224696 @default.
• W2022651580 hasAuthorship W2022651580A5047110112 @default.
• W2022651580 hasConcept C127313418 @default.
• W2022651580 hasConcept C127491152 @default.
• W2022651580 hasConcept C185933670 @default.
• W2022651580 hasConcept C187320778 @default.
• W2022651580 hasConcept C18903297 @default.
• W2022651580 hasConcept C2777289219 @default.
• W2022651580 hasConcept C31258907 @default.
• W2022651580 hasConcept C39432304 @default.
• W2022651580 hasConcept C41008148 @default.
• W2022651580 hasConcept C42090638 @default.
• W2022651580 hasConcept C76886044 @default.
• W2022651580 hasConcept C83042747 @default.
• W2022651580 hasConcept C86803240 @default.
• W2022651580 hasConceptScore W2022651580C127313418 @default.
• W2022651580 hasConceptScore W2022651580C127491152 @default.
• W2022651580 hasConceptScore W2022651580C185933670 @default.
• W2022651580 hasConceptScore W2022651580C187320778 @default.

• next