当前位置: X-MOL 学术Agric. Ecosyst. Environ. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Spatial and temporal associations between fallow fields and Greater Painted Snipe density in Japanese rice paddy landscapes
Agriculture, Ecosystems & Environment ( IF 6.0 ) Pub Date : 2020-06-01 , DOI: 10.1016/j.agee.2020.106892
Naoki Katayama , Yoshiya Odaya , Tatsuya Amano , Hoshiko Yoshida

Fallow fields provide suitable habitats for many farmland species in agricultural landscapes. Although the loss of fallow fields in the last few decades may be one of the major causes of the decline in farmland biodiversity, quantitative studies investigating the spatial and temporal associations between fallow fields and abundance of rice paddy organisms are few. This study focused on the Greater Painted Snipe (Rostratula benghalensis), a widespread wetland bird species in Asian rice paddies. We conducted replicated playback surveys in three regions of central Japan during the breeding seasons of 1997, 2006, 2007, 2018, and 2019. N-mixture models and model-selection approaches revealed positive associations between the immigration rate of Greater Painted Snipes and the area of wet fallow fields in 1997, when the species was still relatively common. Both observed and estimated densities showed (1) a severe decline in the population of Greater Painted Snipes in the Tsuchiura and Kasumigaura regions over a recent 22-year period in accordance with the reduction of fallow fields and (2) persistence of both wet fallow fields and Greater Painted Snipes in the Abiko region in 2018 and 2019. These results indicate that the loss of wet fallow fields since the late 1990s was associated with the decline of the Greater Panted Snipe population in Japanese agricultural landscapes. Our study highlights the potential importance of fallow fields for population trends of farmland birds and the necessity for their maintenance through, for example, agri-environmental schemes, in rice-producing countries.

中文翻译:

日本稻田景观中休耕地与大鹬密度之间的时空关联

休耕地为农业景观中的许多农田物种提供了合适的栖息地。尽管过去几十年休耕地的减少可能是农田生物多样性下降的主要原因之一,但调查休耕地与稻田生物丰度之间时空关联的定量研究很少。这项研究的重点是大鹬(Rostratula benghalensis),这是一种在亚洲稻田中广泛分布的湿地鸟类。我们在 1997 年、2006 年、2007 年、2018 年和 2019 年的繁殖季节期间在日本中部的三个地区进行了重复回放调查。 N 混合模型和模型选择方法揭示了大彩鹬的移民率与该地区之间的正相关1997 年的湿休耕地,当这个物种还比较普遍的时候。观察到的和估计的密度都表明 (1) 在最近 22 年期间,土浦和霞浦地区的大鹬的数量随着休耕地的减少而严重下降;(2) 湿休耕地的持续存在和 2018 年和 2019 年阿比科地区的大鹬。这些结果表明,自 1990 年代后期以来,湿休耕地的减少与日本农业景观中大鹬种群的减少有关。我们的研究强调了休耕地对农田鸟类种群趋势的潜在重要性以及通过例如农业环境计划在水稻生产国对其进行维护的必要性。观察到的和估计的密度都表明 (1) 在最近 22 年期间,土浦和霞浦地区的大鹬的数量随着休耕地的减少而严重下降;(2) 湿休耕地的持续存在和 2018 年和 2019 年阿比科地区的大鹬。这些结果表明,自 1990 年代后期以来,湿休耕地的减少与日本农业景观中大鹬种群的减少有关。我们的研究强调了休耕地对农田鸟类种群趋势的潜在重要性以及通过例如农业环境计划在水稻生产国对其进行维护的必要性。观察到的和估计的密度都表明 (1) 在最近 22 年期间,土浦和霞浦地区的大鹬的数量随着休耕地的减少而严重下降;(2) 湿休耕地的持续存在和 2018 年和 2019 年阿比科地区的大鹬。这些结果表明,自 1990 年代后期以来,湿休耕地的减少与日本农业景观中大鹬种群的减少有关。我们的研究强调了休耕地对农田鸟类种群趋势的潜在重要性以及通过例如农业环境计划在水稻生产国对其进行维护的必要性。
更新日期:2020-06-01
down
wechat
bug