两种新热带昆虫的高植物分类学β多样性及其功能和系统发育趋同

IF 16.4 1区 化学 Q1 CHEMISTRY, MULTIDISCIPLINARY Accounts of Chemical Research Pub Date : 2020-01-02 DOI:10.1080/17550874.2019.1673846
Luiza F. A. de Paula, Sara L. Colmenares-Trejos, D. Negreiros, Bruno H. P. Rosado, Eduardo Arcoverde de Mattos, F. de Bello, S. Porembski, F. A. Silveira
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引用次数: 15

摘要

摘要背景:英selberg(花岗质和片麻质岩石露头)是大西洋森林中常见的元素,具有较大的分类(TD)、功能(FD)和系统发育(PD)多样性。目的:通过比较两个群落内和群落间的TD、FD和PD,探讨植物多样性在生态和生物地理尺度上的变化。我们预计露头之间的FD和PD会趋同,但TD会不同,因为在inselberg中相似的局部环境条件和长期的谱系隔离。方法:计算TD、PD和FD,并将多样性划分为α(每个虫群)、β(虫群之间)和γ(整个样本)三个分量。对所有性状进行系统发育信号估计。为了将环境预测因子与功能特征联系起来,进行了冗余分析。采用以斑块面积和两个种群为预测因子的一般线性模型分析了TD、FD和PD的变化。结果:属虫在分类上不同,但在功能和系统发育多样性上具有趋同性。系统发育信号的有限保留表明不同的物种可能收敛并对环境变量做出相似的反应。在群落内,斑块越大,TD、FD和PD值越高。结论:寻找保护策略是具有挑战性的,因为尽管它们的功能和系统发育相似,地方性物种使单个岩石露头独特。
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High plant taxonomic beta diversity and functional and phylogenetic convergence between two Neotropical inselbergs
ABSTRACT Background: Inselbergs (granitic and gneissic rock outcrops) are common elements in the Atlantic Forest and present large taxonomic (TD), functional (FD) and phylogenetic (PD) diversity. Aims: We investigated how plant diversity changed across ecological and biogeographic scales by comparing TD, FD and PD of communities within and between two inselbergs. We expected converging FD and PD but distinct TD between outcrops, because of similar local environmental conditions in inselbergs and the long-term lineage isolation. Methods: We calculated TD, PD and FD, and partitioned diversity into α (each inselberg), β (between inselbergs) and γ (whole sample) components. Phylogenetic signal was estimated for all traits. To link environmental predictors to functional traits a redundancy analysis was run. Variation in TD, FD and PD was analysed by general linear models with patch area and the two inselbergs as predictors. Results: The inselbergs were taxonomically different, but showed convergence in their functional and phylogenetic diversity. The limited retention of phylogenetic signal suggests that different species may converge and respond similarly to environmental variables. Within inselbergs, larger patches displayed higher TD, FD and PD. Conclusions: Seeking conservation strategies for inselbergs is challenging since, despite their functional and phylogenetic similarity, endemic species make individual rock outcrops unique.
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来源期刊
Accounts of Chemical Research
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.
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