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在格鲁吉亚 (美国) 的城市景观中探索昆虫攻击的风险因素

Zia V Williamson¹, Brett R Blaauw², Shimat V Joseph¹

¹Department of Entomology, The University of Georgia, Griffin Campus, Griffin, GA, United States of Ameica.

|February 26, 2024

概括

城市树木受到热量和不透气表面的压力,面临着更多的昆虫刺客攻击. 不健康的树木和像Acer rubrum这样的特定物种更容易受到影响,增加了城市森林的脆弱性.

科学领域:

城市生态学城市生态学
森林昆虫学森林昆虫学
树木栽培是一种树木栽培.

背景情况:

城市树木面临着来自热岛效应和周围不透气表面的重大压力.
昆虫钻探者,包括树皮甲虫和平头钻探者,是主要的威胁,经常准已经压力很大的树木.

研究的目的:

调查生物和非生物因素对城市树木虫感染的影响.
识别导致城市森林生态系统中袭击的关键风险因素.

主要方法:

在亚特兰大和乔治亚州奥古斯塔 (美国) 在2021-2022年夏季在50个城市地点进行的实地研究.
分析树木的健康状况,场地温度,树种和周围不透气表面的百分比.
使用通用线性和零膨胀模型进行统计建模,以评估因素和钻孔损伤之间的关系.

主要成果:

不透表面的百分比增加与较多的钻头攻击相关.
与Ulmus parvifolia相比,Acer rubrum表现出明显更高的易感性对钻孔攻击.
不健康的树木经历了更频繁和严重的虫感染.
具有更大的不透气覆盖和更温暖的地点温度的树木更容易受到钻探者攻击.

结论:

不透的表面和高温加剧了子对城市树木的攻击.
树木健康和特定物种的易感性是城市森林害虫管理的关键因素.
这些发现突显了城市树木对环境压力因素和昆虫害虫的脆弱性.

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