Leaf Nutritional Content, Tree Richness, and Season Shape the Caterpillar Functional Trait Composition Hosted by Trees

doi:10.3390/insects13121100

	Leaf Nutritional Content, Tree Richness, and Season Shape the Caterpillar Functional Trait Composition Hosted by Trees
	Anttonen, Perttu 1; Li, Yi ; Chesters, Douglas ; Davrinche, Andrea 1; Haider, Sylvia 1; Bruelheide, Helge 1; Chen, Jing-Ting ; Wang, Ming-Qiang ; Ma, Ke-Ping; Zhu, Chao-Dong ; Schuldt, Andreas 7
	2022
发表期刊	INSECTS
卷号	13 期号:12
摘要	Simple Summary The nutritional content of food plants can, to a large extent, determine the physical attributes of herbivorous insects, from growth rates to the need for defenses against predators. In forests, tree species richness may influence these plant-mediated effects through increasing variation in the nutritional quality that herbivorous insects encounter. Seasonal progression can also shape the plant-herbivore relationship, with lowered leaf quality in later seasons. It is expected that specialist herbivores fare better than generalists in poorer nutritional-quality host plants, whereas generalists can benefit from dietary mixing in more variable neighborhoods. However, a clear understanding of how these factors interact to influence the diversity and functionality across multiple traits of herbivorous insect communities is lacking. In this study, we found support for the expectation of higher generalism of caterpillars in high-nutrition content trees, which also promoted higher abundance but lowered caterpillar species richness and smaller and less defended individuals. Increasing tree richness led to higher caterpillar species sharing between tree species, decreased trait variation, and increased caterpillar species richness per tree species. Our findings shed light on how leaf traits and changes in tree richness interact to influence the trait composition of key herbivores through fine-scale habitat partitioning in host plant neighborhoods. Nutritional content of host plants is expected to drive caterpillar species assemblages and their trait composition. These relationships are altered by tree richness-induced neighborhood variation and a seasonal decline in leaf quality. We tested how key functional traits related to the growth and defenses of the average caterpillar hosted by a tree species are shaped by nutritional host quality. We measured morphological traits and estimated plant community-level diet breadth based on occurrences from 1020 caterpillars representing 146 species in a subtropical tree diversity experiment from spring to autumn in one year. We focused on interspecific caterpillar trait variation by analyzing presence-only patterns of caterpillar species for each tree species. Our results show that tree richness positively affected caterpillar species-sharing among tree species, which resulted in lowered trait variation and led to higher caterpillar richness for each tree species. However, community-level diet breadth depended more on the nutritional content of host trees. Higher nutritional quality also supported species-poorer but more abundant communities of smaller and less well-defended caterpillars. This study demonstrates that the leaf nutritional quality of trees shapes caterpillar trait composition across diverse species assemblages at fine spatial scales in a way that can be predicted by ecological theory.
关键词	body weight carbon defense generalist leaf traits Lepidoptera magnesium nitrogen plant richness specialist
学科领域	Entomology
DOI	10.3390/insects13121100
收录类别	SCI
语种	英语
WOS关键词	HEAD CAPSULE WIDTH ; INSECT HERBIVORES ; INTERSPECIFIC INTERACTIONS ; PHYTOPHAGOUS INSECTS ; DIETARY SELECTION ; FEEDING-BEHAVIOR ; FOOD QUALITY ; PLANT ; DIVERSITY ; GROWTH
WOS研究方向	Science Citation Index Expanded (SCI-EXPANDED)
WOS记录号	WOS:000901144700001
出版者	MDPI
文献子类	Article
出版地	BASEL
EISSN	2075-4450
作者邮箱	perttu.anttonen@idiv.de
作品OA属性	gold, Green Published
引用统计	被引频次：2[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ibcas.ac.cn/handle/2S10CLM1/28939
专题	植被与环境变化国家重点实验室
作者单位	1.Martin Luther Univ Halle Wittenberg, Inst Biol Geobot & Bot Garden, D-06108 Halle, Germany 2.German Ctr Integrat Biodivers Res iDiv, D-04103 Leipzig, Germany 3.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China 4.Chinese Acad Sci, Inst Zool, Key Lab Zool Systemat & Evolut, Beijing 100101, Peoples R China 5.Univ Chinese Acad Sci, Int Coll, Beijing 100049, Peoples R China 6.Univ Chinese Acad Sci, Coll Biol Sci, Beijing 100049, Peoples R China 7.Chinese Acad Sci, Inst Zool, State Key Lab Integrated Pest Management, Beijing 100101, Peoples R China 8.Georg August Univ Gottingen, Dept Forest Nat Conservat, D-37077 Gottingen, Germany
推荐引用方式 GB/T 7714	Anttonen, Perttu,Li, Yi,Chesters, Douglas,et al. Leaf Nutritional Content, Tree Richness, and Season Shape the Caterpillar Functional Trait Composition Hosted by Trees[J]. INSECTS,2022,13(12).
APA	Anttonen, Perttu.,Li, Yi.,Chesters, Douglas.,Davrinche, Andrea.,Haider, Sylvia.,...&Schuldt, Andreas.(2022).Leaf Nutritional Content, Tree Richness, and Season Shape the Caterpillar Functional Trait Composition Hosted by Trees.INSECTS,13(12).
MLA	Anttonen, Perttu,et al."Leaf Nutritional Content, Tree Richness, and Season Shape the Caterpillar Functional Trait Composition Hosted by Trees".INSECTS 13.12(2022).

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