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

IF 1.7 4区生物学 Q2 PLANT SCIENCES

Plant Ecology & Diversity 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

Plant Ecology & Diversity PLANT SCIENCES-

CiteScore

3.30

自引率

0.00%

发文量

审稿时长

3 months

期刊介绍： Plant Ecology and Diversity is an international journal for communicating results and novel ideas in plant science, in print and on-line, six times a year. All areas of plant biology relating to ecology, evolution and diversity are of interest, including those which explicitly deal with today''s highly topical themes, such as biodiversity, conservation and global change. We consider submissions that address fundamental questions which are pertinent to contemporary plant science. Articles concerning extreme environments world-wide are particularly welcome. Plant Ecology and Diversity considers for publication original research articles, short communications, reviews, and scientific correspondence that explore thought-provoking ideas. To aid redressing ‘publication bias’ the journal is unique in reporting, in the form of short communications, ‘negative results’ and ‘repeat experiments’ that test ecological theories experimentally, in theoretically flawless and methodologically sound papers. Research reviews and method papers, are also encouraged. Plant Ecology & Diversity publishes high-quality and topical research that demonstrates solid scholarship. As such, the journal does not publish purely descriptive papers. Submissions are required to focus on research topics that are broad in their scope and thus provide new insights and contribute to theory. The original research should address clear hypotheses that test theory or questions and offer new insights on topics of interest to an international readership.