The suitability of leaves from different canopy layers for a generalist herbivore (Lepidoptera: Lasiocampidae) foraging on sugar maple
The suitability of leaves from different canopy layers for a generalist herbivore (Lepidoptera: Lasiocampidae) foraging on sugar maple
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不同冠层的叶子对于在糖枫上觅食的通才草食动物（鳞翅目：Lasiocampidae）的适宜性
DOI：
10.1139/x01-205
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发表时间：
2002
影响因子：
2.2
通讯作者：
Y. Mauffette
中科院分区：
文献类型：
--
作者：
M. Fortin;Y. Mauffette
森林冠层内叶子适宜性的变化可能对植食性昆虫的生物学产生重要影响。在这项研究中，我们连续 4 年（1994 年至 1997 年）研究了糖枫 (Acer saccharum Marsh.) 内叶子垂直分层对 Malacosoma disstria Hbn 生物学性能和摄食偏好的影响。每年都会选择10棵健康的糖枫树和约15棵林下糖枫幼苗。叶子是从树木的下部（距地面 3 米 6 m）和树冠上部（距地面 20 米 25 m）部分以及幼苗中收集的。将采样的叶子放置在培养皿中，以便在受控环境中饲养昆虫。当用树冠上部的叶子喂养幼虫时，昆虫的性能，特别是蛹质量和成年雌性的卵数量更高。摄食偏好测试的结果表明，第四龄幼虫从上部收集的叶子中消耗了更多的表面积......
Variations of leaf suitability within forest canopies may have important consequences for the biology of phytophagous insects. In this study we examined over 4 consecutive years (19941997), the influence of vertical stratification of leaves within a sugar maple (Acer saccharum Marsh.) stand on biological performance and feeding preference of Malacosoma disstria Hbn. Each year, 10 healthy sugar maple trees and about 15 understory sugar maple seedlings were selected. Leaves were collected from the lower (36 m above ground) and the upper crown (2025 m above ground) sections of the trees and from seedlings. Sampled leaves were set in Petri dishes for insect rearings in controlled environment. The performance of the insect, especially pupal masses and the number of eggs of adult females, was higher when larvae were fed with leaves from the upper crown section of trees. Results for the feeding preference tests showed that larvae of fourth instars consumed more surface area from leaves collected in the upper ...