Effects of Landscape Heterogeneity at Multiple Spatial Scales on Paddy field-breeding Frogs in a Large Alluvial Plain in Japan

Effects of Landscape Heterogeneity at Multiple Spatial Scales on Paddy field-breeding Frogs in a Large Alluvial Plain in Japan
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多空间尺度景观异质性对日本大型冲积平原稻田蛙类的影响

DOI:
10.1007/s13157-022-01607-w
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发表时间:
2022
期刊:
影响因子:
2
通讯作者:
Nishihiro Jun
Nishihiro Jun
中科院分区:
环境科学与生态学4区
文献类型:
--
作者:
Matsushima Noe;Hasegawa Masami;Nishihiro Jun

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提高生境的环境异质性是减缓稻田生态系统生物多样性退化的关键。而稻田环境在层次上属于农业景观和河流流域。因此,影响稻田生物(例如青蛙物种)分布格局和丰度的环境异质性的空间尺度是不同的。因此,在关东平原,日本最大的冲积平原,我们进行了广泛的青蛙调查,以确定多个空间尺度的青蛙丰度与地形,气候,土地利用模式和稻田的特点异质性。在200个实地调查点,在呼叫调查中发现了5种青蛙。统计、生态位和丰度模型揭示了这些青蛙在流域、景观和稻田空间水平上的分布模式、丰度的空间异质性和环境偏好的差异。而Zhangixalusschlegelii的分布格局和丰富度的影响,森林面积的百分比,Pelophylaxporosusporosus是敏感的功能有关的水的稻田。尽管检测到的物种多样性小,两个物种的存在与独特的栖息地偏好揭示了显着的好处,在农业景观的栖息地异质性,使我们能够建议管理策略,以提高青蛙的多样性,以稻田为主的农业景观。
Enhancing the environmental heterogeneity of habitats is essential to decelerate the degradation of biodiversity in rice paddy ecosystems caused by the recent rapid changes in agricultural landscapes. However, paddy field environments hierarchically belong to agricultural landscapes and river basins. Therefore, the spatial scale of environmental heterogeneity affecting the distribution patterns and abundance of the organisms inhabiting paddy fields, such as frog species, varies. Thus, in the Kanto Plain, the largest alluvial plain in Japan, we conducted an extensive frog survey to ascertain multiple spatial scale heterogeneities of frog abundance in relation to topography, climate, land use pattern, and features of paddy fields. Across 200 field sites, five frog species were detected during calling surveys. The statistical, niche and abundance models revealed differences in distribution patterns, spatial heterogeneity of abundance, and environmental preference of these frogs at the spatial levels of river basins, landscapes, and paddy fields. While the distribution pattern and abundance ofZhangixalus schlegeliiwere affected by the percentage of forest area, those ofPelophylax porosus porosuswere sensitive to features relating to water availability of the paddy fields. Despite the small diversity of species detected, the presence of two species with unique habitat preferences revealed significant benefits of habitat heterogeneity in the agricultural landscape, allowing us to suggest management strategies for improving frog diversity in agricultural landscapes dominated by paddy fields.
稻田景观中两种时空尺度的中间白鹭 Egretta intermedia 与其水生猎物的空间重叠
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