Biotransport of metallic trace elements from marine to terrestrial ecosystems by seabirds

Shoji A.; Elliott K. H.; Aris-Brosou S.; Mizukawa H.; Nakayama S. M. M.; Ikenaka Y.; Ishizuka M.; Kuwae T.; Watanabe K.; Escoruela Gonzalez J.; Watanuki Yutaka

タイトル	en Biotransport of metallic trace elements from marine to terrestrial ecosystems by seabirds
作成者	en Shoji, A. en Elliott, K. H. en Aris-Brosou, S. en Mizukawa, H. en Nakayama, S. M. M. en Ikenaka, Y. en Ishizuka, M. NRID 1000050332474 en Kuwae, T. en Watanabe, K. en Escoruela Gonzalez, J. en Watanuki, Yutaka NRID 1000040192819
アクセス権	open access
権利情報	en This is the peer reviewed version of the following article: Shoji, A. , Elliott, K. , Aris‐Brosou, S. , Mizukawa, H. , Nakayama, S. , Ikenaka, Y. , Ishizuka, M. , Kuwae, T. , Watanabe, K. , Escoruela Gonzalez, J. and Watanuki, Y. (2019), Biotransport of metallic trace elements from marine to terrestrial ecosystems by seabirds. Environ Toxicol Chem, 38: 106-114, which has been published in final form at https://doi.org/10.1002/etc.4286. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions.
主題	Other en Biological transport Other en Rhinoceros auklet Other en Mercury Other en Bioaccumulation Other en Machine learning NDC 660
内容注記	Abstract en Physical systems, such as currents and winds, have traditionally been considered responsible for transporting contaminants. Although evidence is mounting that animals play a role in this process through their movements, we still know little about how such contaminant biotransport occurs and the extent of effects at deposition sites. In the present study, we address this question by studying how rhinoceros auklets (Cerorhinca monocerata), a seabird that occurs in immense colonies (∼300 000 pairs at our study site, Teuri Island), affect contaminant levels at their colony and at nearby sites. More specifically, we hypothesize that contaminants are transported and deposited by seabirds at their colony and that these contaminants are passed on locally to the terrestrial ecosystem. To test this hypothesis, we analyzed the concentration of 9 heavy metal and metalloids, as well as δ13C and δ15N stable isotopes, in bird tissues, plants, and soil, both within and outside of the colony. The results show that rhinoceros auklets transport marine‐derived mercury (Hg), possibly from their wintering location, and deposit Hg via their feces at their breeding site, thereby contaminating plants and soils within the breeding colony. The present study confirms not only that animals can transport contaminants from marine to terrestrial ecosystems, potentially over unexpectedly long distances, but also that bird tissues contribute locally to plant contamination.
出版者	en John Wiley & Sons
日付	Issued2019-01
言語	eng
資源タイプ	journal article
出版タイプ	AM
資源識別子	HDL http://hdl.handle.net/2115/76475
関連	isVersionOf DOI https://doi.org/10.1002/etc.4286
収録誌情報	PISSN 0730-7268 en Environmental toxicology and chemistry 巻38 号1 開始ページ106 終了ページ114
ファイル	fulltext article_1.2018_Shoji.etal_ETC.pdf 1.51 MB (application/pdf) Issued2019-01
コンテンツ更新日時	2023-07-26