Riparian forests buffer the negative effects of cropland on macroinvertebrate diversity in lowland Amazonian streams
Riparian forests regulate stream ecosystems and biodiversity. Therefore, changes to riparian structure may threaten stream ecosystem function by triggering taxonomic and functional changes to aquatic communities. Because macroinvertebrate assemblages are sensitive to environmental changes, they can...
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description | Riparian forests regulate stream ecosystems and biodiversity. Therefore, changes to riparian structure may threaten stream ecosystem function by triggering taxonomic and functional changes to aquatic communities. Because macroinvertebrate assemblages are sensitive to environmental changes, they can be effective indicators of stream integrity in disturbed landscapes. To assess the role of riparian forests in maintaining tropical stream communities in areas experiencing large-scale watershed disturbance, we quantified the taxonomic and functional response of stream macroinvertebrate communities to forest clearing in the southeastern Amazon’s agricultural frontier, a region experiencing widespread deforestation. Our results show that watershed deforestation can lead to significant changes in macroinvertebrate richness and community composition. We found a predominance of shredders in forested watersheds; scrapers in cropland watersheds with riparian forests; and collector-filterers in cropland watersheds without riparian forest buffers. Taxonomic composition was controlled by available organic material in forested watersheds and by periphyton in cropland sites regardless of whether they had a riparian buffer. Our results show that the clearing of riparian forests alters food sources supporting aquatic food webs, leading to ecosystem-level shifts through changes in light and temperature dynamics that affect aquatic communities in areas with intense land-use change such as the southeastern Amazon. |
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C. S. ; Jankowski, K. J. ; Macedo, M. N. ; Juen, L. ; Luiza-Andrade, A. ; Deegan, L. A.</creator><creatorcontrib>Marques, N. C. S. ; Jankowski, K. J. ; Macedo, M. N. ; Juen, L. ; Luiza-Andrade, A. ; Deegan, L. A.</creatorcontrib><description>Riparian forests regulate stream ecosystems and biodiversity. Therefore, changes to riparian structure may threaten stream ecosystem function by triggering taxonomic and functional changes to aquatic communities. Because macroinvertebrate assemblages are sensitive to environmental changes, they can be effective indicators of stream integrity in disturbed landscapes. To assess the role of riparian forests in maintaining tropical stream communities in areas experiencing large-scale watershed disturbance, we quantified the taxonomic and functional response of stream macroinvertebrate communities to forest clearing in the southeastern Amazon’s agricultural frontier, a region experiencing widespread deforestation. Our results show that watershed deforestation can lead to significant changes in macroinvertebrate richness and community composition. We found a predominance of shredders in forested watersheds; scrapers in cropland watersheds with riparian forests; and collector-filterers in cropland watersheds without riparian forest buffers. Taxonomic composition was controlled by available organic material in forested watersheds and by periphyton in cropland sites regardless of whether they had a riparian buffer. Our results show that the clearing of riparian forests alters food sources supporting aquatic food webs, leading to ecosystem-level shifts through changes in light and temperature dynamics that affect aquatic communities in areas with intense land-use change such as the southeastern Amazon.</description><identifier>ISSN: 0018-8158</identifier><identifier>EISSN: 1573-5117</identifier><identifier>DOI: 10.1007/s10750-021-04604-y</identifier><language>eng</language><publisher>Cham: Springer International Publishing</publisher><subject>Agricultural land ; Analysis ; Aquatic communities ; Aquatic ecosystems ; Biodiversity ; Biological diversity ; Biomedical and Life Sciences ; Buffers ; Clearing ; Community composition ; Composition ; Deforestation ; Ecological function ; Ecology ; Ecosystems ; Environmental changes ; Food ; Food chains ; Food chains (Ecology) ; Food sources ; Food webs ; Forest watersheds ; Forests ; Forests and forestry ; Freshwater & Marine Ecology ; Land use ; Life Sciences ; Macroinvertebrates ; Office equipment ; Periphyton ; Primary Research Paper ; Riparian buffers ; Riparian environments ; Riparian forests ; Rivers ; Scrapers ; Shredding ; Taxonomy ; Tropical climate ; Zoobenthos ; Zoology</subject><ispartof>Hydrobiologia, 2021-09, Vol.848 (15), p.3503-3520</ispartof><rights>The Author(s), under exclusive licence to Springer Nature Switzerland AG 2021</rights><rights>COPYRIGHT 2021 Springer</rights><rights>The Author(s), under exclusive licence to Springer Nature Switzerland AG 2021.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c392t-8534a9b4e8dae168aedf4f4c563887ed9314d0386ec7066edfdfb24a44be217f3</citedby><cites>FETCH-LOGICAL-c392t-8534a9b4e8dae168aedf4f4c563887ed9314d0386ec7066edfdfb24a44be217f3</cites><orcidid>0000-0001-9183-9335</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/s10750-021-04604-y$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s10750-021-04604-y$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,776,780,27901,27902,41464,42533,51294</link.rule.ids></links><search><creatorcontrib>Marques, N. 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C. S.</au><au>Jankowski, K. J.</au><au>Macedo, M. N.</au><au>Juen, L.</au><au>Luiza-Andrade, A.</au><au>Deegan, L. A.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Riparian forests buffer the negative effects of cropland on macroinvertebrate diversity in lowland Amazonian streams</atitle><jtitle>Hydrobiologia</jtitle><stitle>Hydrobiologia</stitle><date>2021-09-01</date><risdate>2021</risdate><volume>848</volume><issue>15</issue><spage>3503</spage><epage>3520</epage><pages>3503-3520</pages><issn>0018-8158</issn><eissn>1573-5117</eissn><abstract>Riparian forests regulate stream ecosystems and biodiversity. Therefore, changes to riparian structure may threaten stream ecosystem function by triggering taxonomic and functional changes to aquatic communities. Because macroinvertebrate assemblages are sensitive to environmental changes, they can be effective indicators of stream integrity in disturbed landscapes. To assess the role of riparian forests in maintaining tropical stream communities in areas experiencing large-scale watershed disturbance, we quantified the taxonomic and functional response of stream macroinvertebrate communities to forest clearing in the southeastern Amazon’s agricultural frontier, a region experiencing widespread deforestation. Our results show that watershed deforestation can lead to significant changes in macroinvertebrate richness and community composition. We found a predominance of shredders in forested watersheds; scrapers in cropland watersheds with riparian forests; and collector-filterers in cropland watersheds without riparian forest buffers. Taxonomic composition was controlled by available organic material in forested watersheds and by periphyton in cropland sites regardless of whether they had a riparian buffer. 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subjects | Agricultural land Analysis Aquatic communities Aquatic ecosystems Biodiversity Biological diversity Biomedical and Life Sciences Buffers Clearing Community composition Composition Deforestation Ecological function Ecology Ecosystems Environmental changes Food Food chains Food chains (Ecology) Food sources Food webs Forest watersheds Forests Forests and forestry Freshwater & Marine Ecology Land use Life Sciences Macroinvertebrates Office equipment Periphyton Primary Research Paper Riparian buffers Riparian environments Riparian forests Rivers Scrapers Shredding Taxonomy Tropical climate Zoobenthos Zoology |
title | Riparian forests buffer the negative effects of cropland on macroinvertebrate diversity in lowland Amazonian streams |
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