Distribution and growth of benthic macroinvertebrates among different patch types of the littoral zones of two arctic lakes
Summary 1. To evaluate the effect of habitat patch heterogeneity on abundance and growth of macroinvertebrates in arctic lakes, macroinvertebrate abundance, individual biomass, and potential food resources were studied in three patch types in two arctic lakes on the Alaskan North Slope near the Tool...
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crwiley:10.1111/j.1365-2427.2006.01664.x 2024-06-02T08:01:34+00:00 Distribution and growth of benthic macroinvertebrates among different patch types of the littoral zones of two arctic lakes BEATY, STEVEN R. FORTINO, KENNETH HERSHEY, ANNE E. 2006 http://dx.doi.org/10.1111/j.1365-2427.2006.01664.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1365-2427.2006.01664.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1365-2427.2006.01664.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Freshwater Biology volume 51, issue 12, page 2347-2361 ISSN 0046-5070 1365-2427 journal-article 2006 crwiley https://doi.org/10.1111/j.1365-2427.2006.01664.x 2024-05-03T11:43:00Z Summary 1. To evaluate the effect of habitat patch heterogeneity on abundance and growth of macroinvertebrates in arctic lakes, macroinvertebrate abundance, individual biomass, and potential food resources were studied in three patch types in two arctic lakes on the Alaskan North Slope near the Toolik Lake Field Station. An experiment was conducted to determine which sediment patch type supported higher growth rates for Chironomus sp., a commonly occurring macroinvertebrate. 2. Potential organic matter (OM) resources were significantly higher in both rock and macrophyte patches than in open‐mud patches. Total macroinvertebrate densities in both lakes were highest in rock patches, intermediate in macrophytes and lowest in open‐mud. The open‐mud patches also had lower species richness compared with other patch types. Additionally, individual biomass for one clam species and two chironomid species was significantly greater in rock patches than in open‐mud. 3. In a laboratory experiment, Chironomus showed two to three times greater mass increase in sediments from macrophyte and rock patches than from open‐mud patches. Rock and macrophyte experimental sediments had at least 1.5 × the percentage OM as open‐mud sediments. 4. Chlorophyll a appeared to be the best predictor for invertebrate abundances across all patch types measured, whereas OM content appeared to be the variable most closely associated with Chironomus growth. 5. Our results combined with previous studies show that the relationships between macroinvertebrate community structure, individual growth, and habitat heterogeneity are complex, reflecting the interaction of multiple resources, and biotic interactions, such as the presence or absence of a selective vertebrate predator (lake trout, Salvelinus namaycush ). Article in Journal/Newspaper Arctic Wiley Online Library Arctic Freshwater Biology 51 12 2347 2361 |
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Wiley Online Library |
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crwiley |
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English |
description |
Summary 1. To evaluate the effect of habitat patch heterogeneity on abundance and growth of macroinvertebrates in arctic lakes, macroinvertebrate abundance, individual biomass, and potential food resources were studied in three patch types in two arctic lakes on the Alaskan North Slope near the Toolik Lake Field Station. An experiment was conducted to determine which sediment patch type supported higher growth rates for Chironomus sp., a commonly occurring macroinvertebrate. 2. Potential organic matter (OM) resources were significantly higher in both rock and macrophyte patches than in open‐mud patches. Total macroinvertebrate densities in both lakes were highest in rock patches, intermediate in macrophytes and lowest in open‐mud. The open‐mud patches also had lower species richness compared with other patch types. Additionally, individual biomass for one clam species and two chironomid species was significantly greater in rock patches than in open‐mud. 3. In a laboratory experiment, Chironomus showed two to three times greater mass increase in sediments from macrophyte and rock patches than from open‐mud patches. Rock and macrophyte experimental sediments had at least 1.5 × the percentage OM as open‐mud sediments. 4. Chlorophyll a appeared to be the best predictor for invertebrate abundances across all patch types measured, whereas OM content appeared to be the variable most closely associated with Chironomus growth. 5. Our results combined with previous studies show that the relationships between macroinvertebrate community structure, individual growth, and habitat heterogeneity are complex, reflecting the interaction of multiple resources, and biotic interactions, such as the presence or absence of a selective vertebrate predator (lake trout, Salvelinus namaycush ). |
format |
Article in Journal/Newspaper |
author |
BEATY, STEVEN R. FORTINO, KENNETH HERSHEY, ANNE E. |
spellingShingle |
BEATY, STEVEN R. FORTINO, KENNETH HERSHEY, ANNE E. Distribution and growth of benthic macroinvertebrates among different patch types of the littoral zones of two arctic lakes |
author_facet |
BEATY, STEVEN R. FORTINO, KENNETH HERSHEY, ANNE E. |
author_sort |
BEATY, STEVEN R. |
title |
Distribution and growth of benthic macroinvertebrates among different patch types of the littoral zones of two arctic lakes |
title_short |
Distribution and growth of benthic macroinvertebrates among different patch types of the littoral zones of two arctic lakes |
title_full |
Distribution and growth of benthic macroinvertebrates among different patch types of the littoral zones of two arctic lakes |
title_fullStr |
Distribution and growth of benthic macroinvertebrates among different patch types of the littoral zones of two arctic lakes |
title_full_unstemmed |
Distribution and growth of benthic macroinvertebrates among different patch types of the littoral zones of two arctic lakes |
title_sort |
distribution and growth of benthic macroinvertebrates among different patch types of the littoral zones of two arctic lakes |
publisher |
Wiley |
publishDate |
2006 |
url |
http://dx.doi.org/10.1111/j.1365-2427.2006.01664.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1365-2427.2006.01664.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1365-2427.2006.01664.x |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
Freshwater Biology volume 51, issue 12, page 2347-2361 ISSN 0046-5070 1365-2427 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.1365-2427.2006.01664.x |
container_title |
Freshwater Biology |
container_volume |
51 |
container_issue |
12 |
container_start_page |
2347 |
op_container_end_page |
2361 |
_version_ |
1800745967900688384 |