APPLIED ISSUES Recovery of three arctic stream reaches from experimental nutrient enrichment
1. Nutrient enrichment and resulting eutrophication is a widespread anthropogenic influence on freshwater ecosystems, but recovery from nutrient enrichment is poorly understood, especially in stream environments. We examined multi-year patterns in community recovery from experimental low-concentrati...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.578.4657 2023-05-15T14:56:05+02:00 APPLIED ISSUES Recovery of three arctic stream reaches from experimental nutrient enrichment Jonathan P. Benstead Adrian C. Green Linda A. Deegan Bruce J. Peterson Karie Slavik William B. Bowden Anne E. Hershey The Pennsylvania State University CiteSeerX Archives application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.578.4657 http://bama.ua.edu/~jbenstead/Publications_files/FB Recovery copy.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.578.4657 http://bama.ua.edu/~jbenstead/Publications_files/FB Recovery copy.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://bama.ua.edu/~jbenstead/Publications_files/FB Recovery copy.pdf text ftciteseerx 2016-01-08T12:52:00Z 1. Nutrient enrichment and resulting eutrophication is a widespread anthropogenic influence on freshwater ecosystems, but recovery from nutrient enrichment is poorly understood, especially in stream environments. We examined multi-year patterns in community recovery from experimental low-concentration nutrient enrichment (N + P or P only) in three reaches of two Arctic tundra streams (Kuparuk River and Oksrukuyik Creek) on the North Slope of Alaska (U.S.A.). 2. Rates of recovery varied among community components and depended on duration of enrichment (2–13 consecutive growing seasons). Biomass of epilithic algae returned to reference levels rapidly (within 2 years), regardless of nutrients added or enrichment duration. Aquatic bryophyte cover, which increased greatly in the Kuparuk River only after long-term enrichment (8 years), took 8 years of recovery to approach reference levels, after storms had scoured most remnant moss in the recovering reach. 3. Multi-year persistence of bryophytes in the Kuparuk River appeared to prevent recovery of insect populations that had either been positively (e.g. the mayfly Ephemerella, most chir-onomid midge taxa) or negatively (e.g. the tube-building chironomidOrthocladius rivulorum) Text Arctic north slope Tundra Alaska Unknown Arctic |
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English |
description |
1. Nutrient enrichment and resulting eutrophication is a widespread anthropogenic influence on freshwater ecosystems, but recovery from nutrient enrichment is poorly understood, especially in stream environments. We examined multi-year patterns in community recovery from experimental low-concentration nutrient enrichment (N + P or P only) in three reaches of two Arctic tundra streams (Kuparuk River and Oksrukuyik Creek) on the North Slope of Alaska (U.S.A.). 2. Rates of recovery varied among community components and depended on duration of enrichment (2–13 consecutive growing seasons). Biomass of epilithic algae returned to reference levels rapidly (within 2 years), regardless of nutrients added or enrichment duration. Aquatic bryophyte cover, which increased greatly in the Kuparuk River only after long-term enrichment (8 years), took 8 years of recovery to approach reference levels, after storms had scoured most remnant moss in the recovering reach. 3. Multi-year persistence of bryophytes in the Kuparuk River appeared to prevent recovery of insect populations that had either been positively (e.g. the mayfly Ephemerella, most chir-onomid midge taxa) or negatively (e.g. the tube-building chironomidOrthocladius rivulorum) |
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The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Jonathan P. Benstead Adrian C. Green Linda A. Deegan Bruce J. Peterson Karie Slavik William B. Bowden Anne E. Hershey |
spellingShingle |
Jonathan P. Benstead Adrian C. Green Linda A. Deegan Bruce J. Peterson Karie Slavik William B. Bowden Anne E. Hershey APPLIED ISSUES Recovery of three arctic stream reaches from experimental nutrient enrichment |
author_facet |
Jonathan P. Benstead Adrian C. Green Linda A. Deegan Bruce J. Peterson Karie Slavik William B. Bowden Anne E. Hershey |
author_sort |
Jonathan P. Benstead |
title |
APPLIED ISSUES Recovery of three arctic stream reaches from experimental nutrient enrichment |
title_short |
APPLIED ISSUES Recovery of three arctic stream reaches from experimental nutrient enrichment |
title_full |
APPLIED ISSUES Recovery of three arctic stream reaches from experimental nutrient enrichment |
title_fullStr |
APPLIED ISSUES Recovery of three arctic stream reaches from experimental nutrient enrichment |
title_full_unstemmed |
APPLIED ISSUES Recovery of three arctic stream reaches from experimental nutrient enrichment |
title_sort |
applied issues recovery of three arctic stream reaches from experimental nutrient enrichment |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.578.4657 http://bama.ua.edu/~jbenstead/Publications_files/FB Recovery copy.pdf |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic north slope Tundra Alaska |
genre_facet |
Arctic north slope Tundra Alaska |
op_source |
http://bama.ua.edu/~jbenstead/Publications_files/FB Recovery copy.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.578.4657 http://bama.ua.edu/~jbenstead/Publications_files/FB Recovery copy.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
_version_ |
1766328121938673664 |