饲料含水率和不同种类木材对亚洲长角甲虫幼虫存活和体重的影响。

IF 1.5 3区 农林科学 Q2 ENTOMOLOGY
Sabrina Osowiecki, Melody A Keena
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引用次数: 0

摘要

蛀木天牛(Anoplophora glabripennis, Motschulsky),亚洲长角甲虫,是一种极具破坏性的入侵害虫,它以健康的硬木为食,幼虫成熟后在树皮下钻洞,然后在边材内钻洞。可获得食物来源的营养成分、水分含量和物理特性会影响幼虫的增重和存活。本研究通过控制人工饲料含水量(70%和40%),并将幼虫植入2种不同寄主(糖槭[Acer saccharum Marshall]和白桦[Betula populolia Marshall])的木材中,对幼虫资源质量进行了实验控制。来自伊利诺伊州芝加哥实验室的一、五龄幼虫被用来跟踪幼虫的存活、体重和化蛹情况。人工饲料水分含量对幼虫成活无影响;然而,在所有时间间隔内,水分含量为70%的日粮饲养的幼虫平均体重均高于水分含量为40%的日粮饲养的幼虫。在切好的白桦树上饲养的一龄幼虫比在切好的糖枫上饲养的一龄幼虫更容易存活、长得更大、蜕皮(只有一个幼虫存活)。砍伐木材的种类对5龄成虫的存活率、增重和羽化均无显著影响。我们的研究结果表明,这种昆虫对高度可变的寄主质量的耐受性为它提供了充足的生存、分散和繁殖能力,即使在食物水分含量低或下降的情况下,正如在侵染后期的树木中可能预期的那样。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Effects of dietary moisture content and cut wood of different species on survival and weight of Asian longhorned beetle larvae (Coleoptera: Cerambycidae).

The wood-boring cerambycid Anoplophora glabripennis (Motschulsky), Asian longhorned beetle, is a highly destructive invasive pest that feeds on healthy hardwoods by tunneling under the bark and then within the sapwood as larvae mature. Larval weight gain and survival can be affected by the nutritional content, moisture content, and physical traits of the available food source. In this study, we experimentally manipulated the larval resource quality by controlling the moisture content of artificial diet (70% and 40% moisture) and by inserting larvae into cut wood of 2 different hosts (sugar maple [Acer saccharum Marshall] and gray birch [Betula populifolia Marshall]). First and/or fifth instars from a Chicago, Illinois laboratory colony were used to follow larval survival, weight, and pupation. Artificial diet moisture content did not affect larvae survival; however, larvae reared on a diet containing 70% moisture weighed more on average than those reared on a diet containing 40% moisture for all time intervals weights were taken. First instars reared in cut gray birch were more likely to survive, grow larger, and molt than first instars reared on cut sugar maple (only one larva survived). The species of cut wood did not have a significant impact on the survival, weight gain, or adult emergence of fifth instars. Our findings suggest that this insect's tolerance of highly variable host quality provides it with ample capacity to survive, disperse, and reproduce even when dietary moisture content is low or declining, as might be expected in trees in the late stages of infestation.

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来源期刊
Environmental Entomology
Environmental Entomology 生物-昆虫学
CiteScore
3.90
自引率
5.90%
发文量
97
审稿时长
3-8 weeks
期刊介绍: Environmental Entomology is published bimonthly in February, April, June, August, October, and December. The journal publishes reports on the interaction of insects with the biological, chemical, and physical aspects of their environment. In addition to research papers, Environmental Entomology publishes Reviews, interpretive articles in a Forum section, and Letters to the Editor.
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