来自蒙古东部的东部常见 (Grus grus lilfordi) 的迁徙模式,息地使用和保护状况
Baasansuren Erdenechimeg1,2, Gankhuyag Purev-Ochir1,2, Amarkhuu Gungaa2
1School of Ecology and Nature Conservation, Beijing Forestry University, Beijing 100083, China.
Animals : an open access journal from MDPI
|July 29, 2023
概括
东方常见 (Grus grus lilfordi) 在蒙古和中国之间迁移,利用牧场和耕地. 保护工作必须扩大保护区,以保护关键的繁殖和过冬地点.
科学领域:
- 鸟类学 鸟类学是一门学科.
- 生态生态学 生态生态学
- 保护生物学 保护生物学
背景情况:
- 关于东方常见起重机 (Grus grus lilfordi) 的研究有限,特别是在西伯利亚东南部,蒙古东部和中国东北部.
- 了解这一亚种的迁徙模式和息地使用对于有效的保护至关重要.
研究的目的:
- 研究东方常见子亚种的迁徙路线,息地偏好和保护状况.
- 为保护规划确定关键的繁殖,中途停留和过冬地点.
主要方法:
- 利用了来自11个个人的GPS/GSM跟踪数据,分析了2017年至2021年间36次完整的迁移.
- 量化迁移距离,息地使用百分比 (牧场,耕地,水),以及目前保护区之外的利用地点的比例.
主要成果:
- 东方常见在蒙古东部和中国各个冬季地点之间平均迁移了1581.5公里 (秋季) 和1446.5公里 (春季).
- 起重机主要使用牧场 (60.3%),其次是耕地 (18.1%) 和水 (14.2%).
- 绝大多数夏令营 (97-98%在俄罗斯),繁殖 (96%在蒙古),停留 (超过70%在中国) 和冬令 (超过90%在中国) 的地点位于保护区之外.
结论:
- 目前的保护区不足以覆盖东方常见的重要息地.
- 在所有关键地点 (夏季,繁殖,停留,冬季) 扩大和建立保护区对于亚种的保护至关重要.
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