Invertebrate communities of the High Arctic ponds in Hornsund
How environmental conditions influence current distributions of organisms at the local scale in sensitive High Arctic freshwaters is essential to understand in order to better comprehend the cascading consequences of the ongoing climate change. This knowledge is also important background data for pa...
Published in: | Polish Polar Research |
---|---|
Main Authors: | , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Polish Academy of Sciences
2016
|
Subjects: | |
Online Access: | https://doi.org/10.1515/popore-2016-0003 https://doaj.org/article/c26290ad3f164965b19822218be8f72c |
id |
ftdoajarticles:oai:doaj.org/article:c26290ad3f164965b19822218be8f72c |
---|---|
record_format |
openpolar |
spelling |
ftdoajarticles:oai:doaj.org/article:c26290ad3f164965b19822218be8f72c 2023-05-15T14:54:40+02:00 Invertebrate communities of the High Arctic ponds in Hornsund Luoto Tomi P. Oksman Mimmi Ojala Antti E.K. 2016-03-01T00:00:00Z https://doi.org/10.1515/popore-2016-0003 https://doaj.org/article/c26290ad3f164965b19822218be8f72c EN eng Polish Academy of Sciences http://www.degruyter.com/view/j/popore.2016.37.issue-1/popore-2016-0003/popore-2016-0003.xml?format=INT https://doaj.org/toc/2081-8262 2081-8262 doi:10.1515/popore-2016-0003 https://doaj.org/article/c26290ad3f164965b19822218be8f72c Polish Polar Research, Vol 37, Iss 1, Pp 105-119 (2016) Arctic polar lakes aquatic invertebrates bird impact climate change Geology QE1-996.5 article 2016 ftdoajarticles https://doi.org/10.1515/popore-2016-0003 2022-12-30T21:16:44Z How environmental conditions influence current distributions of organisms at the local scale in sensitive High Arctic freshwaters is essential to understand in order to better comprehend the cascading consequences of the ongoing climate change. This knowledge is also important background data for paleolimnological assessments of long-term limnoecological changes and in describing the range of environmental variability. We sampled five limnologically different freshwater sites from the Fuglebergsletta marine terrace in Hornsund, southern Svalbard, for aquatic invertebrates. Invertebrate communities were tested against non-climatic environmental drivers as limnological and catchment variables. A clear separation in the communities between the sites was observed. The largest and deepest lake was characterized by a diverse Chironomidae community but Cladocera were absent. In a pond with marine influence, crustaceans, such as Ostracoda, Amphipoda, and calanoid Copepoda were the most abundant invertebrates. Two nutrient-rich ponds were dominated by a chironomid, Orthocladius consobrinus, whereas themost eutrophic pond was dominated by the cladoceran Daphnia pulex, suggesting decreasing diversity along with the trophic status. Overall, nutrient related variables appeared to have an important influence on the invertebrate community composition and diversity, the trophic state of the sites being linked with their exposure to geese guano. Other segregating variables included water color, presence/absence of fish, abundance of aquatic vegetation and lake depth. These results suggest that since most of these variables are climate-driven at a larger scale, the impacts of the ongoing climate change will have cumulative effects on aquatic ecosystems. Article in Journal/Newspaper Arctic Climate change Hornsund Polar Research Svalbard Directory of Open Access Journals: DOAJ Articles Arctic Svalbard Guano ENVELOPE(141.604,141.604,-66.775,-66.775) Hornsund ENVELOPE(15.865,15.865,76.979,76.979) Fuglebergsletta ENVELOPE(15.536,15.536,77.002,77.002) Polish Polar Research 37 1 105 119 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Arctic polar lakes aquatic invertebrates bird impact climate change Geology QE1-996.5 |
spellingShingle |
Arctic polar lakes aquatic invertebrates bird impact climate change Geology QE1-996.5 Luoto Tomi P. Oksman Mimmi Ojala Antti E.K. Invertebrate communities of the High Arctic ponds in Hornsund |
topic_facet |
Arctic polar lakes aquatic invertebrates bird impact climate change Geology QE1-996.5 |
description |
How environmental conditions influence current distributions of organisms at the local scale in sensitive High Arctic freshwaters is essential to understand in order to better comprehend the cascading consequences of the ongoing climate change. This knowledge is also important background data for paleolimnological assessments of long-term limnoecological changes and in describing the range of environmental variability. We sampled five limnologically different freshwater sites from the Fuglebergsletta marine terrace in Hornsund, southern Svalbard, for aquatic invertebrates. Invertebrate communities were tested against non-climatic environmental drivers as limnological and catchment variables. A clear separation in the communities between the sites was observed. The largest and deepest lake was characterized by a diverse Chironomidae community but Cladocera were absent. In a pond with marine influence, crustaceans, such as Ostracoda, Amphipoda, and calanoid Copepoda were the most abundant invertebrates. Two nutrient-rich ponds were dominated by a chironomid, Orthocladius consobrinus, whereas themost eutrophic pond was dominated by the cladoceran Daphnia pulex, suggesting decreasing diversity along with the trophic status. Overall, nutrient related variables appeared to have an important influence on the invertebrate community composition and diversity, the trophic state of the sites being linked with their exposure to geese guano. Other segregating variables included water color, presence/absence of fish, abundance of aquatic vegetation and lake depth. These results suggest that since most of these variables are climate-driven at a larger scale, the impacts of the ongoing climate change will have cumulative effects on aquatic ecosystems. |
format |
Article in Journal/Newspaper |
author |
Luoto Tomi P. Oksman Mimmi Ojala Antti E.K. |
author_facet |
Luoto Tomi P. Oksman Mimmi Ojala Antti E.K. |
author_sort |
Luoto Tomi P. |
title |
Invertebrate communities of the High Arctic ponds in Hornsund |
title_short |
Invertebrate communities of the High Arctic ponds in Hornsund |
title_full |
Invertebrate communities of the High Arctic ponds in Hornsund |
title_fullStr |
Invertebrate communities of the High Arctic ponds in Hornsund |
title_full_unstemmed |
Invertebrate communities of the High Arctic ponds in Hornsund |
title_sort |
invertebrate communities of the high arctic ponds in hornsund |
publisher |
Polish Academy of Sciences |
publishDate |
2016 |
url |
https://doi.org/10.1515/popore-2016-0003 https://doaj.org/article/c26290ad3f164965b19822218be8f72c |
long_lat |
ENVELOPE(141.604,141.604,-66.775,-66.775) ENVELOPE(15.865,15.865,76.979,76.979) ENVELOPE(15.536,15.536,77.002,77.002) |
geographic |
Arctic Svalbard Guano Hornsund Fuglebergsletta |
geographic_facet |
Arctic Svalbard Guano Hornsund Fuglebergsletta |
genre |
Arctic Climate change Hornsund Polar Research Svalbard |
genre_facet |
Arctic Climate change Hornsund Polar Research Svalbard |
op_source |
Polish Polar Research, Vol 37, Iss 1, Pp 105-119 (2016) |
op_relation |
http://www.degruyter.com/view/j/popore.2016.37.issue-1/popore-2016-0003/popore-2016-0003.xml?format=INT https://doaj.org/toc/2081-8262 2081-8262 doi:10.1515/popore-2016-0003 https://doaj.org/article/c26290ad3f164965b19822218be8f72c |
op_doi |
https://doi.org/10.1515/popore-2016-0003 |
container_title |
Polish Polar Research |
container_volume |
37 |
container_issue |
1 |
container_start_page |
105 |
op_container_end_page |
119 |
_version_ |
1766326437336317952 |