Interactive Effects Between Reindeer and Habitat Fertility Drive Soil Nutrient Availabilities in Arctic Tundra
International audience Herbivores impact nutrient availability and cycling, and the net effect of herbivory on soil nutrients is generally assumed to be positive in nutrient-richenvironments and negative in nutrient-poor ones. This is, however, far from a uniform pattern, and there is a recognized n...
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ftunivnantes:oai:HAL:hal-03699435v1 2023-05-15T15:00:52+02:00 Interactive Effects Between Reindeer and Habitat Fertility Drive Soil Nutrient Availabilities in Arctic Tundra Sitters, Judith Te Beest, Mariska Cherif, Mehdi Giesler, Reiner Olofsson, Johan Umeå University 2017-11 https://hal.inrae.fr/hal-03699435 https://doi.org/10.1007/s10021-017-0108-1 en eng HAL CCSD Springer Verlag info:eu-repo/semantics/altIdentifier/doi/10.1007/s10021-017-0108-1 hal-03699435 https://hal.inrae.fr/hal-03699435 doi:10.1007/s10021-017-0108-1 ISSN: 1432-9840 EISSN: 1435-0629 Ecosystems https://hal.inrae.fr/hal-03699435 Ecosystems, Springer Verlag, 2017, 20 (7), pp.1266-1277. ⟨10.1007/s10021-017-0108-1⟩ [SDE.BE]Environmental Sciences/Biodiversity and Ecology [SDV.EE.ECO]Life Sciences [q-bio]/Ecology environment/Ecosystems info:eu-repo/semantics/article Journal articles 2017 ftunivnantes https://doi.org/10.1007/s10021-017-0108-1 2022-06-29T00:20:23Z International audience Herbivores impact nutrient availability and cycling, and the net effect of herbivory on soil nutrients is generally assumed to be positive in nutrient-richenvironments and negative in nutrient-poor ones. This is, however, far from a uniform pattern, and there is a recognized need to investigate any interactive effects of herbivory and habitat fertility (i.e., plant C/N ratios) on soil nutrient availabilities. We determined long-term effects of reindeer on soil extractable nitrogen (N) and phosphorus (P) and their net mineralization rates along a fertility gradient of plant carbon (C) to N and P ratios in arctic tundra. Our results showed that reindeer had a positive effect on soil N in the more nutrient-poor sites and a negative effect on soil P in the more nutrient-rich sites, which contrasts from the general consensus. The increase in N availability was linked to a decrease in plant and litter C/N ratios, suggesting that a shift in vegetation composition toward more graminoids favors higher N cycling. Soil P availability was not as closely linked to the vegetation and is likely regulated more by herbivore-induced changes in soil physical and chemical properties. The changes in soil extractable N and P resulted in higher soil N/P ratios, suggesting that reindeer could drive the vegetation toward P-limitation. This research highlights the importance of including both the elements N and P and conducting studies along environmental gradients in order to better understand the interactive effects of herbivory and habitat fertility on nutrient cycling and primary production. Article in Journal/Newspaper Arctic Tundra Université de Nantes: HAL-UNIV-NANTES Arctic Ecosystems 20 7 1266 1277 |
institution |
Open Polar |
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Université de Nantes: HAL-UNIV-NANTES |
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ftunivnantes |
language |
English |
topic |
[SDE.BE]Environmental Sciences/Biodiversity and Ecology [SDV.EE.ECO]Life Sciences [q-bio]/Ecology environment/Ecosystems |
spellingShingle |
[SDE.BE]Environmental Sciences/Biodiversity and Ecology [SDV.EE.ECO]Life Sciences [q-bio]/Ecology environment/Ecosystems Sitters, Judith Te Beest, Mariska Cherif, Mehdi Giesler, Reiner Olofsson, Johan Interactive Effects Between Reindeer and Habitat Fertility Drive Soil Nutrient Availabilities in Arctic Tundra |
topic_facet |
[SDE.BE]Environmental Sciences/Biodiversity and Ecology [SDV.EE.ECO]Life Sciences [q-bio]/Ecology environment/Ecosystems |
description |
International audience Herbivores impact nutrient availability and cycling, and the net effect of herbivory on soil nutrients is generally assumed to be positive in nutrient-richenvironments and negative in nutrient-poor ones. This is, however, far from a uniform pattern, and there is a recognized need to investigate any interactive effects of herbivory and habitat fertility (i.e., plant C/N ratios) on soil nutrient availabilities. We determined long-term effects of reindeer on soil extractable nitrogen (N) and phosphorus (P) and their net mineralization rates along a fertility gradient of plant carbon (C) to N and P ratios in arctic tundra. Our results showed that reindeer had a positive effect on soil N in the more nutrient-poor sites and a negative effect on soil P in the more nutrient-rich sites, which contrasts from the general consensus. The increase in N availability was linked to a decrease in plant and litter C/N ratios, suggesting that a shift in vegetation composition toward more graminoids favors higher N cycling. Soil P availability was not as closely linked to the vegetation and is likely regulated more by herbivore-induced changes in soil physical and chemical properties. The changes in soil extractable N and P resulted in higher soil N/P ratios, suggesting that reindeer could drive the vegetation toward P-limitation. This research highlights the importance of including both the elements N and P and conducting studies along environmental gradients in order to better understand the interactive effects of herbivory and habitat fertility on nutrient cycling and primary production. |
author2 |
Umeå University |
format |
Article in Journal/Newspaper |
author |
Sitters, Judith Te Beest, Mariska Cherif, Mehdi Giesler, Reiner Olofsson, Johan |
author_facet |
Sitters, Judith Te Beest, Mariska Cherif, Mehdi Giesler, Reiner Olofsson, Johan |
author_sort |
Sitters, Judith |
title |
Interactive Effects Between Reindeer and Habitat Fertility Drive Soil Nutrient Availabilities in Arctic Tundra |
title_short |
Interactive Effects Between Reindeer and Habitat Fertility Drive Soil Nutrient Availabilities in Arctic Tundra |
title_full |
Interactive Effects Between Reindeer and Habitat Fertility Drive Soil Nutrient Availabilities in Arctic Tundra |
title_fullStr |
Interactive Effects Between Reindeer and Habitat Fertility Drive Soil Nutrient Availabilities in Arctic Tundra |
title_full_unstemmed |
Interactive Effects Between Reindeer and Habitat Fertility Drive Soil Nutrient Availabilities in Arctic Tundra |
title_sort |
interactive effects between reindeer and habitat fertility drive soil nutrient availabilities in arctic tundra |
publisher |
HAL CCSD |
publishDate |
2017 |
url |
https://hal.inrae.fr/hal-03699435 https://doi.org/10.1007/s10021-017-0108-1 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Tundra |
genre_facet |
Arctic Tundra |
op_source |
ISSN: 1432-9840 EISSN: 1435-0629 Ecosystems https://hal.inrae.fr/hal-03699435 Ecosystems, Springer Verlag, 2017, 20 (7), pp.1266-1277. ⟨10.1007/s10021-017-0108-1⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1007/s10021-017-0108-1 hal-03699435 https://hal.inrae.fr/hal-03699435 doi:10.1007/s10021-017-0108-1 |
op_doi |
https://doi.org/10.1007/s10021-017-0108-1 |
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Ecosystems |
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20 |
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7 |
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1266 |
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1277 |
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1766332913292410880 |