Environment, not phylogeny, drives herbivory and leaf attributes in trees from two contrasting forest formations of the Brazilian Atlantic Forest

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2020-03-03 DOI:10.1080/17550874.2020.1744760

A. A. D. Nascimento, L. Silva Carvalho, M. R. G. Vega, D. M. Villela, M. Nascimento

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引用次数: 3

Abstract

ABSTRACT Background The degree of herbivory in plants can be related to leaf traits, which are, in turn, determined by phylogeny and environment. Aims The objective of our study was to determine the level of trait conservation (determined by phylogeny) vs. trait convergence (owing to overbearing effect of environmental factors) in leaf attributes and its relationship with rates of herbivory in two contrasting neotropical habitats. Methods We quantified herbivory and 12 leaf traits in 10 congeneric, co-occurring pairs of tree species of an Atlantic Rain Forest (ARF) and a coastal forest (Restinga - REST). Results Higher values of N, N:P, leaf area and water content were found for the ARF species, while REST species were characterised by higher total phenol, Ca, C:N and leaf mass per area. There was a great degree of trait convergence in leaf attributes by habitat, and a near lack of trait conservation. Rates of herbivory were related to leaf attributes and were significantly larger in ARF species compared to those in REST. Conclusions These findings indicate that leaf attributes are relatively convergent and closely related to habitat. The results also support theory in confirming greater investment in leaf defence in REST species in a more resource-poor environment than in ARF.

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环境，而不是系统发育，驱动巴西大西洋森林两种截然不同的森林结构中树木的草食性和叶片属性

摘要背景植物的草食性程度与叶片性状有关，而叶片性状又由系统发育和环境决定。本研究的目的是确定在两个对比的新热带栖息地中，叶片属性的特征保持水平（由系统发育决定）与特征趋同水平（由于环境因素的霸王效应）及其与食草动物率的关系。方法对大西洋雨林（ARF）和沿海森林（Restinga-REST）的10对同源、共生树种的食草性和12个叶片性状进行了量化。结果ARF种的N、N:P、叶面积和含水量较高，而REST种的特征是总酚、Ca、C:N和单位面积叶质量较高。不同生境的叶片属性有很大程度的性状趋同，几乎缺乏性状保护。与REST相比，ARF物种的草食率明显更高，与叶属性有关。结论这些发现表明，叶属性相对趋同，与栖息地密切相关。研究结果也支持了在资源匮乏的环境中，REST物种在叶片防御方面的投资比ARF更大的理论。

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.