Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 신경훈 | - |
dc.date.accessioned | 2022-07-26T00:55:12Z | - |
dc.date.available | 2022-07-26T00:55:12Z | - |
dc.date.issued | 2021-06 | - |
dc.identifier.citation | ESTUARINE COASTAL AND SHELF SCIENCE, v. 258, Page. 1-10 | en_US |
dc.identifier.issn | 0272-7714 | - |
dc.identifier.uri | https://www.sciencedirect.com/science/article/pii/S0272771421002961 | - |
dc.identifier.uri | https://repository.hanyang.ac.kr/handle/20.500.11754/171600 | - |
dc.description.abstract | Drastic sea ice retreats in the Antarctic Peninsula, and the consequent environmental changes have brought about the consequences of biological adaptation and food competition. The isotopic niche is reflected by the ecological position and functional role of a species, which can be altered depending on these environmental changes. We assessed the isotopic niche and trophic positions (TP) of 3 seabirds on the Barton Peninsula, King George Island, Antarctica, to understand ecological interaction among the species. The average TP of Antarctic krill (Euphausia superba) (hereafter "krill") (2.6 +/- 0.1) was estimated by using the compiled published data of the compound-specific nitrogen isotope ratio of glutamic acid and phenylalanine in the Southern Ocean, and TP values of the seabirds based on that of krill to be reliable according to ecological knowledge. Our results on the overlap of the isotopic niches of seabirds suggests potential diet competition among the consumers, such as the brown skua (Stercorarius antarcticus) and south polar skua (Stercorarius maccormicki), whereas the distinct and broad isotopic niche width of kelp gulls (Larus dominicanus) suggesting that their adaptation through generalization was related to their extended habitat and various food sources. Our research indicates that isotopic niche of seabirds reflects their survival strategy for food competition. Consequently, these seabirds can be easily influenced by alternative food sources, including terrestrial and human-derived sources, by rapid environmental changes, indicating that they are valuable as key environmental species and require long-term monitoring in the Antarctic Peninsula. | en_US |
dc.description.sponsorship | We would like to thank the Editor and reviewers for providing useful feedback that helped improve the clarity our manuscript. We thank the Korea Antarctic overwintering members for the kind field assistance at the Sejong Station. This study was supported by the project ‘Carbon cycle change and ecosystem response under the Southern Ocean warming (PE20170 (current project ID: PE21110))’, and ‘Ecophysiology of Antarctic terrestrial organisms to reveal mechanisms of adaptation to a changing environment (PE21130)’, funded by Korea Polar Research Institute, South Korea. And this work was also supported by the National Institute of Fisheries Science – South Korea (R2021036). | en_US |
dc.language.iso | en | en_US |
dc.publisher | ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD | en_US |
dc.subject | Antarctic seabirds | en_US |
dc.subject | Isotopic niche | en_US |
dc.subject | Trophic position | en_US |
dc.subject | Stable isotope analysis | en_US |
dc.subject | Antarctic Peninsula | en_US |
dc.title | Trophic niche of seabirds on the Barton Peninsula, King George Island, Antarctica | en_US |
dc.type | Article | en_US |
dc.relation.volume | 258 | - |
dc.identifier.doi | 10.1016/j.ecss.2021.107443 | - |
dc.relation.page | 1-10 | - |
dc.relation.journal | ESTUARINE COASTAL AND SHELF SCIENCE | - |
dc.contributor.googleauthor | Gal, Jong-Ku | - |
dc.contributor.googleauthor | Choi, Bohyung | - |
dc.contributor.googleauthor | Kim, Bo-Kyung | - |
dc.contributor.googleauthor | Jung, Jin-Woo | - |
dc.contributor.googleauthor | Min, Jun-Oh | - |
dc.contributor.googleauthor | Lee, Won Young | - |
dc.contributor.googleauthor | Shin, Kyung-Hoon | - |
dc.contributor.googleauthor | Kim, Jeong-Hoon | - |
dc.contributor.googleauthor | Ha, Sun-Yong | - |
dc.relation.code | 2021005785 | - |
dc.sector.campus | E | - |
dc.sector.daehak | COLLEGE OF SCIENCE AND CONVERGENCE TECHNOLOGY[E] | - |
dc.sector.department | DEPARTMENT OF MARINE SCIENCE AND CONVERGENCE ENGINEERING | - |
dc.identifier.pid | shinkh | - |
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