遥感和食数据说明了沿海恢复和鸟类管理的景观规模考虑
Brock Geary1,2, W Ryan James1,3, Jordan Karubian4
1Department of Biology, University of Louisiana at Lafayette, Lafayette, Louisiana, USA.
概括
沿海恢复必须将屏障岛与水鸟食区联系起来. 绘制鱼类资源的地图显示了它们对鱼食和殖民地安置的重要性,这对恢复成功至关重要.
科学领域:
- 生态生态学 生态生态学
- 保护生物学 保护生物学
- 遥感 遥感 遥感 遥感
背景情况:
- 沿海恢复项目在全球范围内越来越多,需要评估它们对野生动物和生态系统功能的影响.
- 路易斯安那州沿海的屏障岛屿保护人类定居点,并提供重要的水鸟繁殖息地.
- 繁殖殖民地与高质量的海洋食区之间的联系至关重要,但在恢复中往往没有被检查.
研究的目的:
- 评估沿海恢复,食息地质量和野生动物移动之间的关系.
- 开发一个区域范围的方法,以评估在动态环境中的食息地重要性.
- 通过了解多种物相互作用,为沿海恢复规划提供信息.
主要方法:
- 与遥感和稳定同位素数据相结合,绘制出海湾 (Brevoortia patronus) 的能量重要性.
- 生成了猎物分布的"E景观" (能量景观).
- 叠加的E-景观与棕色 (Pelecanus occidentalis) 寻找食物的三大殖民地的移动数据.
主要成果:
- 的食息地质量在多个移动尺度上显著影响了它们的空间和时间使用决策.
- 在殖民地之间观察到强烈的空间隔离.
- 证明了E-scapes对评估猎物分布及其对顶级捕食者运动的影响的实用性.
结论:
- 岛屿在恢复中的位置对于野生动物的反应至关重要,受猎物的可用性影响.
- 电子景观为评估沿海生态系统功能和为恢复规划提供信息提供了一个有价值的,空间明确的工具.
- 了解多形动态对于有效的沿海恢复和野生动物保护至关重要.
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