The effects of chilling and forcing temperatures on spring synchrony between larch casebearer and tamarack

IF 1.6 3区 农林科学 Q2 ENTOMOLOGY Agricultural and Forest Entomology Pub Date : 2023-06-16 DOI:10.1111/afe.12588
Claudia Nanninga, Samuel F. Ward, Brian H. Aukema, Rebecca A. Montgomery
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低温和强迫温度对落叶松和柽柳间春季同步的影响
春季的酚学同步性对树木和昆虫的相互作用可能很重要。根据酚类变化的幅度和方向,越冬昆虫可能会受到多种影响,例如,面临饥饿或不得不应对寄主树木增强的化学或物理防御。如果温度对树木和昆虫的酚学有不同的影响,气候变化可以改变春季的酚学同步性。在这个实验中,我们将来自美国明尼苏达州的罗望子幼苗和落叶松背壳幼虫暴露在各种低温和强迫温度下,并测量春季的表型(枝条芽断裂和幼虫激活)。我们还测量了案例携带者对暴露于不同强迫×冷藏水平的幼苗的表现,跟踪幼虫成年后的存活率。温暖增强了幼虫的激活和芽裂,但超过21°C后,幼虫的发育速度减慢。更高的冷藏温度加速了芽的破裂,但对幼虫的影响还没有定论。这两个物种都没有令人不寒而栗的相互作用。与幼苗相比,幼虫的春季活动随着温度的升高而加速得更快,这导致在温暖的温度下增加了酚学同步性。越冬幼虫的激活率在27°C时最高,而春季激活后的成年存活率在21°C时最大。在27°C或以上的温度下,没有幼虫达到成年期。温暖的冬季和春季最初可能会增加罗望子和落叶松的春季同步性,使幼虫暴露在更年轻、可能更有营养的树叶中,但极端温暖的春季温度可能会降低幼虫成年后的存活率。
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来源期刊
Agricultural and Forest Entomology
Agricultural and Forest Entomology 农林科学-昆虫学
CiteScore
3.60
自引率
6.20%
发文量
66
审稿时长
>24 weeks
期刊介绍: Agricultural and Forest Entomology provides a multi-disciplinary and international forum in which researchers can present their work on all aspects of agricultural and forest entomology to other researchers, policy makers and professionals. The Journal welcomes primary research papers, reviews and short communications on entomological research relevant to the control of insect and other arthropod pests. We invite high quality original research papers on the biology, population dynamics, impact and management of pests of the full range of forest, agricultural and horticultural crops.
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