The influence of migratory birds on the distribution of the seagrass Zostera japonica
Abstract Grazing pressure by animals can change the distribution and biomass of seagrass. We examined grazing pressure by conducting transect surveys and acquiring aerial images by drone before and after the arrival of migratory birds along the Asadokoro tide flats, Aomori Prefecture, Japan. The dis...
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crdegruyter:10.1515/bot-2020-0045 2023-05-15T15:46:07+02:00 The influence of migratory birds on the distribution of the seagrass Zostera japonica Sato, Fumiyuki Tanaka, Satoshi Kirihara, Shinji Tanaka, Yoshiyuki 2020 http://dx.doi.org/10.1515/bot-2020-0045 https://www.degruyter.com/view/journals/botm/63/6/article-p521.xml https://www.degruyter.com/document/doi/10.1515/bot-2020-0045/xml https://www.degruyter.com/document/doi/10.1515/bot-2020-0045/pdf en eng Walter de Gruyter GmbH Botanica Marina volume 63, issue 6, page 521-525 ISSN 1437-4323 0006-8055 Plant Science Aquatic Science Ecology, Evolution, Behavior and Systematics journal-article 2020 crdegruyter https://doi.org/10.1515/bot-2020-0045 2022-04-14T05:02:14Z Abstract Grazing pressure by animals can change the distribution and biomass of seagrass. We examined grazing pressure by conducting transect surveys and acquiring aerial images by drone before and after the arrival of migratory birds along the Asadokoro tide flats, Aomori Prefecture, Japan. The distribution and biomass of the seagrass Zostera japonica decreased sharply between October and November 2018, which was when migrating waterfowl arrived. We hypothesized that grazing pressure by migrating birds such as the Anatidae, including whooper swans ( Cygnus cygnus ) and brent geese ( Branta bernicla ), had a major effect on the decline in Z . japonica in late October. Shortly after the Anatidae arrived, most of the Z . japonica in the shallows disappeared, including the belowground parts. The abundance of Z . japonica in this area was insufficient to support wintering swans. Swans likely need food other than Z . japonica for overwintering. Article in Journal/Newspaper Branta bernicla brent geese Cygnus cygnus De Gruyter (via Crossref) Botanica Marina 63 6 521 525 |
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Open Polar |
collection |
De Gruyter (via Crossref) |
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crdegruyter |
language |
English |
topic |
Plant Science Aquatic Science Ecology, Evolution, Behavior and Systematics |
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Plant Science Aquatic Science Ecology, Evolution, Behavior and Systematics Sato, Fumiyuki Tanaka, Satoshi Kirihara, Shinji Tanaka, Yoshiyuki The influence of migratory birds on the distribution of the seagrass Zostera japonica |
topic_facet |
Plant Science Aquatic Science Ecology, Evolution, Behavior and Systematics |
description |
Abstract Grazing pressure by animals can change the distribution and biomass of seagrass. We examined grazing pressure by conducting transect surveys and acquiring aerial images by drone before and after the arrival of migratory birds along the Asadokoro tide flats, Aomori Prefecture, Japan. The distribution and biomass of the seagrass Zostera japonica decreased sharply between October and November 2018, which was when migrating waterfowl arrived. We hypothesized that grazing pressure by migrating birds such as the Anatidae, including whooper swans ( Cygnus cygnus ) and brent geese ( Branta bernicla ), had a major effect on the decline in Z . japonica in late October. Shortly after the Anatidae arrived, most of the Z . japonica in the shallows disappeared, including the belowground parts. The abundance of Z . japonica in this area was insufficient to support wintering swans. Swans likely need food other than Z . japonica for overwintering. |
format |
Article in Journal/Newspaper |
author |
Sato, Fumiyuki Tanaka, Satoshi Kirihara, Shinji Tanaka, Yoshiyuki |
author_facet |
Sato, Fumiyuki Tanaka, Satoshi Kirihara, Shinji Tanaka, Yoshiyuki |
author_sort |
Sato, Fumiyuki |
title |
The influence of migratory birds on the distribution of the seagrass Zostera japonica |
title_short |
The influence of migratory birds on the distribution of the seagrass Zostera japonica |
title_full |
The influence of migratory birds on the distribution of the seagrass Zostera japonica |
title_fullStr |
The influence of migratory birds on the distribution of the seagrass Zostera japonica |
title_full_unstemmed |
The influence of migratory birds on the distribution of the seagrass Zostera japonica |
title_sort |
influence of migratory birds on the distribution of the seagrass zostera japonica |
publisher |
Walter de Gruyter GmbH |
publishDate |
2020 |
url |
http://dx.doi.org/10.1515/bot-2020-0045 https://www.degruyter.com/view/journals/botm/63/6/article-p521.xml https://www.degruyter.com/document/doi/10.1515/bot-2020-0045/xml https://www.degruyter.com/document/doi/10.1515/bot-2020-0045/pdf |
genre |
Branta bernicla brent geese Cygnus cygnus |
genre_facet |
Branta bernicla brent geese Cygnus cygnus |
op_source |
Botanica Marina volume 63, issue 6, page 521-525 ISSN 1437-4323 0006-8055 |
op_doi |
https://doi.org/10.1515/bot-2020-0045 |
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Botanica Marina |
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63 |
container_issue |
6 |
container_start_page |
521 |
op_container_end_page |
525 |
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