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Extremely Stochastic Connectivity of Island Mangroves
https://oist.repo.nii.ac.jp/records/2764
https://oist.repo.nii.ac.jp/records/2764af167b7c-768d-4315-a0ce-9b0608072e5b
名前 / ファイル | ライセンス | アクション |
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fmars-09-827590 (10.0 MB)
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Creative Commons Attribution 4.0 International (https://creativecommons.org/licenses/by/4.0/)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2022-08-23 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Extremely Stochastic Connectivity of Island Mangroves | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | mangrove | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | population connectivity | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | stepping stones | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | island system | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | biophysical approach | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | propagule dispersal | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | drifting buoy tracking | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
著者(英) |
Thomas, Maki
× Thomas, Maki× Nakajima, Yuichi× Mitarai, Satoshi |
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書誌情報 |
en : Frontiers in Marine Science 巻 9, p. 827590, 発行日 2022-06-13 |
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抄録 | ||||||
内容記述タイプ | Other | |||||
内容記述 | Studies of mangrove population connectivity have focused primarily on global to regional scales and have suggested potential for long-distance connectivity, with archipelagos serving as stepping stones for trans-oceanic dispersal. However, the contribution of propagule dispersal to connectivity is still largely unknown, especially at local-scale. Identifying fine-scale propagule dispersal patterns unique to individual island systems is important to understand their contribution to global species distributions, and to select appropriate sizes and locations for mangrove conservation in archipelagos. Using population genetic methods and a release-recapture method employing GPS drifting buoys, we investigated the spatiotemporal scale of propagule dispersal of Rhizophora stylosa, one of the widely distributed mangrove species in the Indo-West Pacific. This study sought to quantify intra- and inter-island connectivity and to assess their contributions to oceanic scale dispersal of R. stylosa from the Ryukyu Archipelago, which spans over 545 km in southwestern Japan. Using 7 microsatellite markers, we tested 354 samples collected from 16 fringing populations on 4 islands. We identified 3 genetic populations, indicating distinct genetic structures comprising 3 distinguishable bioregions (genetic clusters). The western end of the archipelago receives relatively frequent migration (m > 0.1), but is genetically isolated from other sites. Based on genetic migration rates, we found that the central area of the archipelago serves as a stepping stone for southwestward, but not northeastward dispersal. On the other hand, with in-situ drifting buoys, we did not confirm prevailing dispersal directionality within the archipelago, instead confirming local eddies. Some buoys trapped in those eddies demonstrated potential for successful beaching from another island. A large portion of buoys were carried predominantly northeastward by the Kuroshio Current and drifted away from the coastal areas into the Pacific, contrary to local migrations. We found that the spatiotemporal scale of propagule dispersal is limited by the distance between islands (< 200km), propagule viability duration, and fecundity. Over all, recruitment does not occur frequently enough to unify the genetic structure in the archipelago, and the Ryukyu Archipelago is isolated in the center of the global mangrove distribution. | |||||
出版者 | ||||||
出版者 | Frontiers Media | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 2296-7745 | |||||
DOI | ||||||
関連タイプ | isIdenticalTo | |||||
識別子タイプ | DOI | |||||
関連識別子 | info:doi/10.3389/fmars.2022.827590 | |||||
権利 | ||||||
権利情報 | © 2022 Thomas, Nakajima and Mitarai. | |||||
関連サイト | ||||||
識別子タイプ | URI | |||||
関連識別子 | https://www.frontiersin.org/articles/10.3389/fmars.2022.827590/full | |||||
著者版フラグ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 |