Effects of forest cover on richness of threatened fish species in Japan

Lavergne, Edouard; Kume, Manabu; Ahn, Hyojin; Henmi, Yumi; Terashima, Yuki; Ye, Feng; Kameyama, Satoshi; Kai, Yoshiaki; Kadowaki, Kohmei; Kobayashi, Shiho; Yamashita, Yoh; Kasai, Akihide

Effects of forest cover on richness of threatened fish species in Japan

Lavergne, Edouard; Kume, Manabu; Ahn, Hyojin et al.

Conservation Biology, 2022, 36(3), e13847

Permalink : https://hdl.handle.net/2115/84244

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アクセス権	metadata only access
URI	https://hdl.handle.net/2115/84244
タイトル	Effects of forest cover on richness of threatened fish species in Japan
著者	Lavergne, Edouard ; Kume, Manabu ; Ahn, Hyojin ; Henmi, Yumi ; Terashima, Yuki ; Ye, Feng ; Kameyama, Satoshi ; Kai, Yoshiaki ; Kadowaki, Kohmei ; Kobayashi, Shiho ; Yamashita, Yoh ; Kasai, Akihide
著者名 Lavergne, Edouard
著者名 Kume, Manabu
著者名 Ahn, Hyojin
著者名 Henmi, Yumi
著者名 Terashima, Yuki
著者名 Ye, Feng
e-Rad_Researcher 80332237 著者名 Kameyama, Satoshi
e-Rad_Researcher 30379036 著者名 Kai, Yoshiaki
e-Rad_Researcher 30643548 著者名 Kadowaki, Kohmei
e-Rad_Researcher 60432340 著者名 Kobayashi, Shiho
e-Rad_Researcher 60346038 著者名 Yamashita, Yoh
e-Rad_Researcher 80263127 著者名 Kasai, Akihide
言語	英語
キーワード	anthropogenic activity
	coastal water bodies
	environmental DNA metabarcoding
	estuary
	land use
	actividad antropogenica
	cuerpos de agua costeros
	estuario
	metasecuenciacion de ADN ambiental
	uso de suelo
発行日	2022-03-02
出版者	John Wiley & Sons
収録物名	Conservation Biology
巻(号)	36(3)
ページ	e13847
抄録	Estuaries--one of the most vulnerable ecosystems globally--face anthropogenic threats, including biodiversity loss and the collapse of sustainable fisheries. Determining the factors contributing to the maintenance of estuarine biodiversity, especially that of fish, is vital for promoting estuarine conservation and sustainability. We used environmental DNA metabarcoding analysis to determine fish species composition in 22 estuaries around Japan and measured watershed-scale land-use factors (e.g., population size, urban area percentage, and forest area percentage). We sought to test the hypothesis that the richness of the most vulnerable estuarine fish species (i.e., registered by the Japanese Ministry of the Environment in the national species red-list) is determined by watershed-scale land-use factors. The richness of such species was greater, where forest cover was highest; thus, forest cover contributes to their conservation. The proportion of agriculture cover was associated with low species richness of red-listed fishes (redundancy analysis, adjusted R-2 = 43.9% of total variance, df = 5, F = 5.3843, p = 0.0001). The number of red-listed species increased from 3 to 11 along a watershed land-use gradient ranging from a high proportion of agriculture cover to a large proportion of forest cover. Furthermore, the results showed that throughout Japan all the examined watersheds that were covered by >74.8% forest had more than the average (6.7 species per site) richness of red-listed fish species. This result can be attributed to the already high average forest cover in Japan of 67.2%. Our results demonstrate how the land use of watersheds can affect the coastal sea environment and its biodiversity and suggest that proper forest management in conjunction with land-use management may be of prime importance for threatened fish species and coastal ecosystems in general.
資源タイプ	学術雑誌論文
出版タイプ	Version of Record
PISSN	0888-8892
関連情報 (isIdenticalTo)	出版社版DOI https://doi.org/10.1111/cobi.13849