Indicator species reveal the physical and biological singularity of esker ecosystems
Eskers are complex geological formations shaped with a linear accumulation of sand and gravel under the glaciers during the last ice age and that provide crucial resources such as drinking water, sand/gravel, outdoor recreational sites, and productive forests. Surrounding sand and gravel and connect...
Published in: | Ecological Indicators |
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Language: | English |
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Elsevier
2023
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Online Access: | https://hdl.handle.net/10272/23894 https://doi.org/10.1016/j.ecolind.2023.110612 |
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ftunivhuelva:oai:rabida.uhu.es:10272/23894 2024-09-09T19:35:14+00:00 Indicator species reveal the physical and biological singularity of esker ecosystems Hasan, Akib Montoro Girona, Miguel Imbeau, Louis Lento, Jennifer Hof, Anouschka R. Grosbois, Guillaume 2023-07 https://hdl.handle.net/10272/23894 https://doi.org/10.1016/j.ecolind.2023.110612 eng eng Elsevier Hasan, A., Montoro Girona, M., Imbeau, L., Lento, J., Hof, A. R., & Grosbois, G. (2023). Indicator species reveal the physical and biological singularity of esker ecosystems. In Ecological Indicators (Vol. 154, p. 110612). Elsevier BV. https://doi.org/10.1016/j.ecolind.2023.110612 1470-160X 1872-7034 (electrónico) https://hdl.handle.net/10272/23894 doi:10.1016/j.ecolind.2023.110612 Atribución-NoComercial-SinDerivadas 3.0 España http://creativecommons.org/licenses/by-nc-nd/3.0/es/ open access Biodiversity Biological conservation Ecological indicators Food webs Forest management Macroinvertebrates 24 Ciencias de la Vida 25 Ciencias de la Tierra y del Espacio journal article VoR 2023 ftunivhuelva https://doi.org/10.1016/j.ecolind.2023.110612 2024-06-18T23:48:34Z Eskers are complex geological formations shaped with a linear accumulation of sand and gravel under the glaciers during the last ice age and that provide crucial resources such as drinking water, sand/gravel, outdoor recreational sites, and productive forests. Surrounding sand and gravel and connection with the groundwater influences the physicochemical properties of lakes on esker which can benefit different biotic communities in the food web. The sustainable management of resources provided by eskers requires baseline ecological knowledge of these ecosystems. However, very little information exists about the ecology of freshwater ecosystems on eskers. This study uses a food web approach to identify the environmental variables, biological diversity, and indicator species associated with esker lakes to better understand their ecological functioning and biodiversity patterns to benefit their sustainable management and conservation. Fifty lakes were sampled in the Abitibi-Témiscamingue region (Canada), half on eskers and half on the surrounding boreal clay belt to include the most abundant lake ecosystems of the region. Physicochemical, environmental, and anthropogenic variables measured in the two lake types showed that esker lakes differed markedly from clay lakes. Nutrient concentrations, conductivity, and macrophyte cover were significantly lower in esker lakes than in clay lakes, whereas dissolved oxygen saturation and concentration showed the opposite trend. Three interconnected trophic levels of the esker lake food webs—waterbird, fish, and macroinvertebrate communities—were characterized for biological diversity and the associated species. We found a significantly lower Shannon diversity index for waterbirds (mean ± standard deviation; 0.7 ± 0.2), fish (0.4 ± 0.3), and a tendency for a lower value for macroinvertebrates (0.9 ± 0.3) in esker lakes than the clay lakes (1.1 ± 0.4, 0.9 ± 0.3, and 1.3 ± 0.5, respectively). Common goldeneye (Bucephala clangula) and Canada goose (Bucephala clangula) were ... Article in Journal/Newspaper Canada Goose glacier* Universidad de Huelva: Arias Montano Canada Ecological Indicators 154 110612 |
institution |
Open Polar |
collection |
Universidad de Huelva: Arias Montano |
op_collection_id |
ftunivhuelva |
language |
English |
topic |
Biodiversity Biological conservation Ecological indicators Food webs Forest management Macroinvertebrates 24 Ciencias de la Vida 25 Ciencias de la Tierra y del Espacio |
spellingShingle |
Biodiversity Biological conservation Ecological indicators Food webs Forest management Macroinvertebrates 24 Ciencias de la Vida 25 Ciencias de la Tierra y del Espacio Hasan, Akib Montoro Girona, Miguel Imbeau, Louis Lento, Jennifer Hof, Anouschka R. Grosbois, Guillaume Indicator species reveal the physical and biological singularity of esker ecosystems |
topic_facet |
Biodiversity Biological conservation Ecological indicators Food webs Forest management Macroinvertebrates 24 Ciencias de la Vida 25 Ciencias de la Tierra y del Espacio |
description |
Eskers are complex geological formations shaped with a linear accumulation of sand and gravel under the glaciers during the last ice age and that provide crucial resources such as drinking water, sand/gravel, outdoor recreational sites, and productive forests. Surrounding sand and gravel and connection with the groundwater influences the physicochemical properties of lakes on esker which can benefit different biotic communities in the food web. The sustainable management of resources provided by eskers requires baseline ecological knowledge of these ecosystems. However, very little information exists about the ecology of freshwater ecosystems on eskers. This study uses a food web approach to identify the environmental variables, biological diversity, and indicator species associated with esker lakes to better understand their ecological functioning and biodiversity patterns to benefit their sustainable management and conservation. Fifty lakes were sampled in the Abitibi-Témiscamingue region (Canada), half on eskers and half on the surrounding boreal clay belt to include the most abundant lake ecosystems of the region. Physicochemical, environmental, and anthropogenic variables measured in the two lake types showed that esker lakes differed markedly from clay lakes. Nutrient concentrations, conductivity, and macrophyte cover were significantly lower in esker lakes than in clay lakes, whereas dissolved oxygen saturation and concentration showed the opposite trend. Three interconnected trophic levels of the esker lake food webs—waterbird, fish, and macroinvertebrate communities—were characterized for biological diversity and the associated species. We found a significantly lower Shannon diversity index for waterbirds (mean ± standard deviation; 0.7 ± 0.2), fish (0.4 ± 0.3), and a tendency for a lower value for macroinvertebrates (0.9 ± 0.3) in esker lakes than the clay lakes (1.1 ± 0.4, 0.9 ± 0.3, and 1.3 ± 0.5, respectively). Common goldeneye (Bucephala clangula) and Canada goose (Bucephala clangula) were ... |
format |
Article in Journal/Newspaper |
author |
Hasan, Akib Montoro Girona, Miguel Imbeau, Louis Lento, Jennifer Hof, Anouschka R. Grosbois, Guillaume |
author_facet |
Hasan, Akib Montoro Girona, Miguel Imbeau, Louis Lento, Jennifer Hof, Anouschka R. Grosbois, Guillaume |
author_sort |
Hasan, Akib |
title |
Indicator species reveal the physical and biological singularity of esker ecosystems |
title_short |
Indicator species reveal the physical and biological singularity of esker ecosystems |
title_full |
Indicator species reveal the physical and biological singularity of esker ecosystems |
title_fullStr |
Indicator species reveal the physical and biological singularity of esker ecosystems |
title_full_unstemmed |
Indicator species reveal the physical and biological singularity of esker ecosystems |
title_sort |
indicator species reveal the physical and biological singularity of esker ecosystems |
publisher |
Elsevier |
publishDate |
2023 |
url |
https://hdl.handle.net/10272/23894 https://doi.org/10.1016/j.ecolind.2023.110612 |
geographic |
Canada |
geographic_facet |
Canada |
genre |
Canada Goose glacier* |
genre_facet |
Canada Goose glacier* |
op_relation |
Hasan, A., Montoro Girona, M., Imbeau, L., Lento, J., Hof, A. R., & Grosbois, G. (2023). Indicator species reveal the physical and biological singularity of esker ecosystems. In Ecological Indicators (Vol. 154, p. 110612). Elsevier BV. https://doi.org/10.1016/j.ecolind.2023.110612 1470-160X 1872-7034 (electrónico) https://hdl.handle.net/10272/23894 doi:10.1016/j.ecolind.2023.110612 |
op_rights |
Atribución-NoComercial-SinDerivadas 3.0 España http://creativecommons.org/licenses/by-nc-nd/3.0/es/ open access |
op_doi |
https://doi.org/10.1016/j.ecolind.2023.110612 |
container_title |
Ecological Indicators |
container_volume |
154 |
container_start_page |
110612 |
_version_ |
1809904627741622272 |