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土地利用影响着授粉者特定资源的可用性和授粉者寻找食物的行为

Markus Birkenbach¹, Florian Straub¹, Anna Kiesel¹

¹Institute of Evolutionary Ecology and Conservation Genomics Ulm University Ulm Germany.

Ecology and evolution

|March 8, 2024

概括

草原的土地使用强度会影响授粉者资源和食. 高土地使用强度减少了花的多样性,影响了大黄蜂的食行为,并可能导致授粉者减少.

科学领域:

生态生态学生态生态学
保护生物学保护生物学
农业科学农业科学

背景情况:

传粉者种群在全球范围内正在减少,农业草原的土地利用管理被确定为一个重要的驱动因素.
土地利用的强度可以直接导致息地丧失,并间接减少花资源,影响授粉者健康和食行为.

研究的目的:

调查土地利用强度 (LUI) 如何影响授粉者资源的可用性,宿主植物的选择和管理草原的食行为.
为了比较大黄蜂 (Bombus lapidarius) 和 (Episyrphus balteatus) 对不同LUI的反应.

主要方法:

进行了关于在草原上有变化LUI的开花植物物种丰度的调查.
进行了对大黄蜂和虫的行为观察.
分析了LUI,花资源的可用性,植物选择和授粉者食模式之间的关系.

主要成果:

植物资源的组成取决于LUI和管理实践 (割草,放牧).
熊蜂与虫不同,根据LUI改变了它们的植物选择.
由于LUI而减少的花朵多样性和丰富性间接影响了授粉者行为,大黄蜂在密集地块上展现了更长的飞行时间.

结论:

土地利用管理显著改变了农业草原中花资源的可用性和授粉者组成.
不同的LUI间接影响着授粉者食行为,对不同授粉者群体产生不同的影响.
这些土地使用驱动的资源和食行为的变化可能会导致授粉者减少.

关键词:

人类对人类的影响.熊熊蜂是一个熊熊蜂.授粉服务授粉服务授粉者与植物的相互作用飞飞的飞飞的飞飞

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