BENTHIC INVERTEBRATES IN A NORTH‐FLOWING STREAM AND A SOUTH‐FLOWING STREAM, BROOKS RANGE, ALASKA 1
ABSTRACT: Benthic invertebrate faunas were compared to two fifth‐order streams, the Atigun River flowing northward and the Dietrich River flowing southward. Sixty‐eight taxa were collected, forty‐nine from each stream. Aquatic insects comprised 88% of the taxa and 97% of the individuals from the Die...
Published in: | Journal of the American Water Resources Association |
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crwiley:10.1111/j.1752-1688.1979.tb00293.x 2024-06-23T07:51:51+00:00 BENTHIC INVERTEBRATES IN A NORTH‐FLOWING STREAM AND A SOUTH‐FLOWING STREAM, BROOKS RANGE, ALASKA 1 Slack, K. V. Nauman, J. W. Tilley, L.J. 1979 http://dx.doi.org/10.1111/j.1752-1688.1979.tb00293.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1752-1688.1979.tb00293.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1752-1688.1979.tb00293.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor JAWRA Journal of the American Water Resources Association volume 15, issue 1, page 108-135 ISSN 1093-474X 1752-1688 journal-article 1979 crwiley https://doi.org/10.1111/j.1752-1688.1979.tb00293.x 2024-06-11T04:43:11Z ABSTRACT: Benthic invertebrate faunas were compared to two fifth‐order streams, the Atigun River flowing northward and the Dietrich River flowing southward. Sixty‐eight taxa were collected, forty‐nine from each stream. Aquatic insects comprised 88% of the taxa and 97% of the individuals from the Dietrich River and 73% of the taxa and 97% of the individuals from the Atigun River. Diptera, especially Chironomidae, were most abundant. Plecoptera, Ephemeroptera, Oligochaeta, Acarina, and Collembola were significant. In both streams the headwaters were dominated by the subfamily Diamesinae which was replaced by Orthocladiinae downstream. Diversity seemed to increase with stream order. Cluster analysis showed a high degree of resemblance between the benthic faunas of the rivers. Faunal resemblance decreased with increasing distance between stations, both within and between the streams. Although some taxa may occur in only one stream, the evidence for faunal resemblance is stronger than for faunal differences. Other studies have shown that differences in total radiation associated with valley aspect affect local climate, hydrology, and distribution of terrestrial plants and animals. However, the benthic faunas of Atigun and Dietrich Rivers were remarkably similar. Factors which operate independently of aspect, possibly freezing solid in winter, may control the occurrence of species in these streams. Article in Journal/Newspaper Brooks Range Alaska Wiley Online Library Journal of the American Water Resources Association 15 1 108 135 |
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Open Polar |
collection |
Wiley Online Library |
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crwiley |
language |
English |
description |
ABSTRACT: Benthic invertebrate faunas were compared to two fifth‐order streams, the Atigun River flowing northward and the Dietrich River flowing southward. Sixty‐eight taxa were collected, forty‐nine from each stream. Aquatic insects comprised 88% of the taxa and 97% of the individuals from the Dietrich River and 73% of the taxa and 97% of the individuals from the Atigun River. Diptera, especially Chironomidae, were most abundant. Plecoptera, Ephemeroptera, Oligochaeta, Acarina, and Collembola were significant. In both streams the headwaters were dominated by the subfamily Diamesinae which was replaced by Orthocladiinae downstream. Diversity seemed to increase with stream order. Cluster analysis showed a high degree of resemblance between the benthic faunas of the rivers. Faunal resemblance decreased with increasing distance between stations, both within and between the streams. Although some taxa may occur in only one stream, the evidence for faunal resemblance is stronger than for faunal differences. Other studies have shown that differences in total radiation associated with valley aspect affect local climate, hydrology, and distribution of terrestrial plants and animals. However, the benthic faunas of Atigun and Dietrich Rivers were remarkably similar. Factors which operate independently of aspect, possibly freezing solid in winter, may control the occurrence of species in these streams. |
format |
Article in Journal/Newspaper |
author |
Slack, K. V. Nauman, J. W. Tilley, L.J. |
spellingShingle |
Slack, K. V. Nauman, J. W. Tilley, L.J. BENTHIC INVERTEBRATES IN A NORTH‐FLOWING STREAM AND A SOUTH‐FLOWING STREAM, BROOKS RANGE, ALASKA 1 |
author_facet |
Slack, K. V. Nauman, J. W. Tilley, L.J. |
author_sort |
Slack, K. V. |
title |
BENTHIC INVERTEBRATES IN A NORTH‐FLOWING STREAM AND A SOUTH‐FLOWING STREAM, BROOKS RANGE, ALASKA 1 |
title_short |
BENTHIC INVERTEBRATES IN A NORTH‐FLOWING STREAM AND A SOUTH‐FLOWING STREAM, BROOKS RANGE, ALASKA 1 |
title_full |
BENTHIC INVERTEBRATES IN A NORTH‐FLOWING STREAM AND A SOUTH‐FLOWING STREAM, BROOKS RANGE, ALASKA 1 |
title_fullStr |
BENTHIC INVERTEBRATES IN A NORTH‐FLOWING STREAM AND A SOUTH‐FLOWING STREAM, BROOKS RANGE, ALASKA 1 |
title_full_unstemmed |
BENTHIC INVERTEBRATES IN A NORTH‐FLOWING STREAM AND A SOUTH‐FLOWING STREAM, BROOKS RANGE, ALASKA 1 |
title_sort |
benthic invertebrates in a north‐flowing stream and a south‐flowing stream, brooks range, alaska 1 |
publisher |
Wiley |
publishDate |
1979 |
url |
http://dx.doi.org/10.1111/j.1752-1688.1979.tb00293.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1752-1688.1979.tb00293.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1752-1688.1979.tb00293.x |
genre |
Brooks Range Alaska |
genre_facet |
Brooks Range Alaska |
op_source |
JAWRA Journal of the American Water Resources Association volume 15, issue 1, page 108-135 ISSN 1093-474X 1752-1688 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.1752-1688.1979.tb00293.x |
container_title |
Journal of the American Water Resources Association |
container_volume |
15 |
container_issue |
1 |
container_start_page |
108 |
op_container_end_page |
135 |
_version_ |
1802643000403165184 |