The significance of region-specific habitat models as revealed by habitat shifts of grey-faced buzzard in response to different agricultural schedules.
The significance of region-specific habitat models as revealed by habitat shifts of grey-faced buzzard in response to different agricultural schedules.
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DOI：
10.1038/s41598-021-02315-x
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发表时间：
2021-11-24
影响因子：
4.6
通讯作者：
Miyashita T
中科院分区：
文献类型：
--
作者：
Kito K;Fujita G;Iseki F;Miyashita T
为了确定重点物种的大尺度栖息地适宜性，来自一个地区的栖息地模型通常会外推到其他地区。然而，由于栖息地选择的区域差异，外推可能不合适。要解决这个问题，必须考虑造成这种变化的生态机制。我们重点关注日本农业景观中的灰脸秃鹰，它们表现出地理上不同的栖息地选择。为了确定这种差异是否是由地理尺度上的气候条件差异或较小区域尺度上的农业实践差异引起的，我们调查了秃鹰及其主要猎物（青蛙/直翅类动物）在同一气候带内插秧计划不同的地区的分布。我们发现秃鹰在移栽早期地区更喜欢稻田-森林景观，而在移栽后期地区则喜欢草原-森林景观。由于稻田被淹，早期移栽地区的青蛙数量较多，而直翅类动物的数量没有差异。秃鹰栖息地选择的区域差异可能是由于不同的农业计划造成的猎物可用性不同所致。我们建议，农业景观生物的栖息地适宜性评估应考虑区域尺度生产系统的差异，这种区域划分对于准确评估是有效的。
To determine large scales habitat suitability for focal species, habitat models derived from one region are often extrapolated to others. However, extrapolation can be inappropriate due to regional variation of habitat selection. Accounting for the ecological mechanisms causing such variation is necessary to resolve this problem. We focused on grey-faced buzzards in agricultural landscapes of Japan, which show geographically different habitat selection. To determine whether this variation is caused by the difference in climatic conditions at geographical scales or the difference in agricultural practices at smaller regional scales, we surveyed distributions of buzzards and their major prey (frogs/orthopterans) in regions differing in rice-transplanting schedules within the same climatic zone. We found that buzzards preferred paddy-forest landscapes in the early transplanting regions, but grassland-forest landscapes in the late transplanting regions. Frogs were more abundant in the early transplanting regions due to flooded paddies, while the abundance of orthopterans did not differ. The regional variation in habitat selection of buzzards may be due to different prey availabilities caused by different agricultural schedules. We propose that habitat suitability assessments of organisms inhabiting agricultural landscapes should consider differences in production systems at regional scales and such regional partitioning is effective for accurate assessments.
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影响因子：
1.4
作者：
HOLT, RD
通讯作者：
HOLT, RD
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作者：
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