農村計画学会誌
Online ISSN : 1881-2309
Print ISSN : 0912-9731
ISSN-L : 0912-9731
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39 巻, 2 号
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  • 非灌漑期の農地管理の空間パターンとカエル類の生息との関係
    丹羽 英之, 齊藤 光男, 山下 博康, 西 昇悟, 関山 恵太
    2020 年 39 巻 2 号 p. 148-154
    発行日: 2020/09/30
    公開日: 2021/09/30
    DOIhttps://doi.org/10.2750/arp.39.148
    ジャーナル フリー
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    At 17 sites, the distribution of frogs was investigated by hearing the croaking. The survey was conducted twice in May 21 and June 25, 2018. Changes in farmland management during the non-irrigation season were investigated by visually interpreting ortho mosaic imagery acquired by UAV (Unmanned Aerial Vehicles). Buffers with a radius of 150 m from 17 sites were created. For each category of farmland management, we analyzed the relationship between frog populations and the area of land blocks in the buffer. Farmland management during the non-irrigation season was found to be diverse. The frog population was found to be affected by farmland management during the non-irrigation season. Species more dependent on paddy fields were more susceptible, with Pelophylax porosus brevipodus being the most affected. It was suggested that the tillage from December to April had a negative effect on the population of P. porosus brevipodus.

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