Long-term consequences of goose exclusion on nutrient cycles and plant communities in the High-Arctic
Geese can profoundly affect arctic ecosystems directly (e.g., by grazing vegetation) and indirectly (e.g. by changing nutrient cycling resulting from faces inputs and by reducing plant litter). In the Arctic, behavior and abundance of geese have changed due to climate and land-use change. While the...
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ftnipr:oai:nipr.repo.nii.ac.jp:00016421 2023-05-15T14:41:25+02:00 Long-term consequences of goose exclusion on nutrient cycles and plant communities in the High-Arctic 2021-03 https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=16421 http://id.nii.ac.jp/1291/00016299/ en eng https://doi.org/10.1016/j.polar.2020.100631 https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=16421 http://id.nii.ac.jp/1291/00016299/ Polar Science, 100631(2021-03) 18739652 Arctic Exclosure Fertilization Goose/geese Plant community Journal Article 2021 ftnipr https://doi.org/10.1016/j.polar.2020.100631 2022-12-03T19:43:21Z Geese can profoundly affect arctic ecosystems directly (e.g., by grazing vegetation) and indirectly (e.g. by changing nutrient cycling resulting from faces inputs and by reducing plant litter). In the Arctic, behavior and abundance of geese have changed due to climate and land-use change. While the short-term effects of increased goose populations on tundra ecosystems are known, there is a knowledge gap for long-term consequences of goose population changes on nutrient cycling and plant communities, especially in the High-Arctic. Here, we compared wetland sites where geese have been almost absent for at least 50 years (Pond Inlet), and nearby sites where geese are abundant or sites where they have been excluded experimentally by cages and where the ground has been experimentally fertilized for over 16 years (Bylot Island). Long-term goose disappearance increased inorganic nutrients in wetlands through increased plant litter decomposition and changed community composition, likely by altering competitive relationships between three dominant vascular plant species that are different in terms of nutrient acquisition and use. In experimentally fertilized sites, inorganic nutrients were similarly increased, but fertilization had contrast effects on plant community composition compared with herbivory, released plant species from the nutrient limitation and converted wetland habitats to a dryer state. Overall, our results suggest that the direct effects of goose herbivory on vegetation are more profound than their indirect effects through an alternation of nutrient cycling even in nutrient-limited wetlands of the Arctic. These findings emphasize the need to assess long-term direct impacts of herbivores on vegetation. Article in Journal/Newspaper Arctic Bylot Island Polar Science Polar Science Pond Inlet Tundra National Institute of Polar Research Repository, Japan Arctic Bylot Island Pond Inlet ENVELOPE(-77.960,-77.960,72.699,72.699) Polar Science 27 100631 |
institution |
Open Polar |
collection |
National Institute of Polar Research Repository, Japan |
op_collection_id |
ftnipr |
language |
English |
topic |
Arctic Exclosure Fertilization Goose/geese Plant community |
spellingShingle |
Arctic Exclosure Fertilization Goose/geese Plant community Long-term consequences of goose exclusion on nutrient cycles and plant communities in the High-Arctic |
topic_facet |
Arctic Exclosure Fertilization Goose/geese Plant community |
description |
Geese can profoundly affect arctic ecosystems directly (e.g., by grazing vegetation) and indirectly (e.g. by changing nutrient cycling resulting from faces inputs and by reducing plant litter). In the Arctic, behavior and abundance of geese have changed due to climate and land-use change. While the short-term effects of increased goose populations on tundra ecosystems are known, there is a knowledge gap for long-term consequences of goose population changes on nutrient cycling and plant communities, especially in the High-Arctic. Here, we compared wetland sites where geese have been almost absent for at least 50 years (Pond Inlet), and nearby sites where geese are abundant or sites where they have been excluded experimentally by cages and where the ground has been experimentally fertilized for over 16 years (Bylot Island). Long-term goose disappearance increased inorganic nutrients in wetlands through increased plant litter decomposition and changed community composition, likely by altering competitive relationships between three dominant vascular plant species that are different in terms of nutrient acquisition and use. In experimentally fertilized sites, inorganic nutrients were similarly increased, but fertilization had contrast effects on plant community composition compared with herbivory, released plant species from the nutrient limitation and converted wetland habitats to a dryer state. Overall, our results suggest that the direct effects of goose herbivory on vegetation are more profound than their indirect effects through an alternation of nutrient cycling even in nutrient-limited wetlands of the Arctic. These findings emphasize the need to assess long-term direct impacts of herbivores on vegetation. |
format |
Article in Journal/Newspaper |
title |
Long-term consequences of goose exclusion on nutrient cycles and plant communities in the High-Arctic |
title_short |
Long-term consequences of goose exclusion on nutrient cycles and plant communities in the High-Arctic |
title_full |
Long-term consequences of goose exclusion on nutrient cycles and plant communities in the High-Arctic |
title_fullStr |
Long-term consequences of goose exclusion on nutrient cycles and plant communities in the High-Arctic |
title_full_unstemmed |
Long-term consequences of goose exclusion on nutrient cycles and plant communities in the High-Arctic |
title_sort |
long-term consequences of goose exclusion on nutrient cycles and plant communities in the high-arctic |
publishDate |
2021 |
url |
https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=16421 http://id.nii.ac.jp/1291/00016299/ |
long_lat |
ENVELOPE(-77.960,-77.960,72.699,72.699) |
geographic |
Arctic Bylot Island Pond Inlet |
geographic_facet |
Arctic Bylot Island Pond Inlet |
genre |
Arctic Bylot Island Polar Science Polar Science Pond Inlet Tundra |
genre_facet |
Arctic Bylot Island Polar Science Polar Science Pond Inlet Tundra |
op_relation |
https://doi.org/10.1016/j.polar.2020.100631 https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=16421 http://id.nii.ac.jp/1291/00016299/ Polar Science, 100631(2021-03) 18739652 |
op_doi |
https://doi.org/10.1016/j.polar.2020.100631 |
container_title |
Polar Science |
container_volume |
27 |
container_start_page |
100631 |
_version_ |
1766313194107699200 |