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规定的火灾增加了植物-授粉者网络的稳定性,对罕见的原生森林植物的损失造成了损失

Susan M Waters¹, Rachel M Mitchell², Emily R Brown¹

¹Quamash EcoResearch, Olympia, Washington, USA.

Ecological applications : a publication of the Ecological Society of America

|October 25, 2023

概括

恢复工作改善了授粉者社区和植物授粉者网络. 规定的火灾和种植本地花增强了花资源,促进了授粉者访问和网络抵御物种丧失的弹性.

科学领域:

生态生态学生态生态学
恢复生态学恢复生态学
保护生物学保护生物学

背景情况:

生态恢复往往假设自动重组的食物相互作用,如授粉,后本地植物恢复.
恢复对授粉者社区和植物-授粉者网络稳定的影响仍然不清楚.

研究的目的:

研究规定的火灾和本地禁种植如何影响太平洋西北部草原的花资源,授粉者访问和植物-授粉者网络结构.
评估这些网络对植物物种丧失和二次灭绝级联的强度.

主要方法:

利用修复时间序列来研究处方火灾和本地禁令再种植的影响.
分析了花资源,授粉者访问率和植物-授粉者相互作用网络指标 (连接性,嵌套性,模块化).
模拟植物物种丧失场景,以评估网络弹性和二次灭绝风险.

主要成果:

增加的热生物多样性和被烧毁的面积与花资源丰富,传粉者访问和传粉者多样性有积极的相关性.
规定的火灾通过减少连接率和嵌套性而改变了网络结构,同时增加了模块化.
网络缓冲了灭绝级联;在恢复较少的地点,罕见的草是至关重要的,而去除异国情调/有害杂草对强度的影响很小.

结论:

恢复重点是授粉者植物资源,提高网络的弹性.
管理策略应考虑植物-授粉者网络的结构变化,这些变化是由火灾等恢复活动引起的.
罕见的本地物种在维护网络稳定的作用是显著的,特别是在早期恢复阶段.

关键词:

灭绝的级联灭绝.草原是一片草地.原生土著的原住民.网络网络网络网络网络网络植物-授粉者网络网络这是一场规定的消防.生物多样性生物多样性恢复恢复恢复坚固性坚固性坚固性

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