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植物入侵和碎片化间接和对比地影响本地植物和草原节足动物
Róbert Gallé1, Csaba Tölgyesi2, Ágota Réka Szabó3
1'Lendület' Landscape and Conservation Ecology, Institute of Ecology and Botany, Centre for Ecological Research, Alkotmány út 2-4, 2163 Vácrátót, Hungary; National Laboratory for Healty Security, Centre for Ecological Research, Alkotmány út 2-4, 2163 Vácrátót, Hungary; MTA-SZTE 'Momentum' Applied Ecology Research Group, Közép fasor 52, 6726 Szeged, Hungary.
The Science of the total environment
|August 12, 2023
概括
侵入性常见乳草 (Asclepias syriaca) 改变了息地条件,间接有利于一些节肢动物,如授粉者和食草动物. 虽然它没有损害草原的整体生物多样性,但它通过支持通用物种来使社区均化.
科学领域:
- 生态生态学 生态生态学
- 侵入性物种 生物学 生物学
- 保护生物学 保护生物学
背景情况:
- 植物入侵和息地碎片化威胁着全球生态系统的生物多样性.
- 常见的乳草 (Asclepias syriaca) 是一种侵入性植物,影响着各种生态系统.
- 了解不同息地碎片大小的入侵影响对于保护至关重要.
研究的目的:
- 为了比较阿斯克莱皮亚斯叙利亚人的入侵对匈牙利森林草原片段生物多样性的直接和间接影响.
- 评估对植被结构,微气候和各种节肢动物群体 (植物,授粉者,食草动物,捕食者) 的影响.
主要方法:
- 实地研究比较不同大小的森林草原片段中被入侵和未被入侵的地点.
- 评估植被结构,微气候 (温度,土壤水分).
- 对植物,蜜蜂,蝶,黄蜂,,真虫和蜘蛛群体的调查.
主要成果:
- 侵袭降低了温度和土壤水分,但增加了植物物种丰富性和花丰富性.
- 通过息地变化观察到对节肢动物的间接影响;授粉者和食草动物从增加的本地花朵和植物丰富中受益.
- 侵袭性乳草支持通用蜘蛛,它们对碎片大小的敏感性比专家要小.
结论:
- 阿斯克莱皮亚斯西里亚卡的入侵并没有对草原生物多样性产生广泛的负面影响.
- 侵袭可以通过偏好泛型物种来使社区均质化,从而可能改变生态系统的动态.
- 管理策略应考虑碎片大小和间接影响,建议从小碎片中去除入侵植物.
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