Vertical distribution of edaphic oribatid mites (Acari: Oribatida) in two artificial forests planted on temperate grasslands

IF 1.2 4区农林科学 Q4 SOIL SCIENCE

Soil Research Pub Date : 2024-04-12 DOI:10.1071/sr23160

Eugenia Levy, M. Fernanda Alvarez, Natalia A. Fredes

{"title":"Vertical distribution of edaphic oribatid mites (Acari: Oribatida) in two artificial forests planted on temperate grasslands","authors":"Eugenia Levy, M. Fernanda Alvarez, Natalia A. Fredes","doi":"10.1071/sr23160","DOIUrl":null,"url":null,"abstract":" ContextOribatid mites are the most abundant taxon in forest soils that rely on porosity and organic matter availability. Exotic forests of Pinus radiata and Eucalyptus globulus planted over native grasslands in the Pampas region of Argentina have produced modification in soil properties, which can affect the composition and structure of native oribatids communities. AimsTo compare oribatid communities in soils under artificial woodlands of pine and eucalyptus and to assess the vertical distribution of oribatids in relation to edaphic variables. MethodsIn each forest, oribatids were collected from three levels of the A horizon: (1) litter layer; (2) 0–5 cm; and (3) 5–10 cm. Edaphic variables measured were penetration resistance, bulk density, total porosity, pH and water content and luminosity at soil level. Density, species richness, diversity and evenness of oribatids were calculated in each level of each forest. Comparisons were made through multivariate analyses. Key resultsEdaphic variables showed no significant differences between plots but litters were structurally different. Richness and diversity showed no differences between plots whereas evenness was significantly higher in plot P. Density had higher values in the litter layer of both forests. Canonical Analysis of Principal Coordinates (CAP) showed that Pine plots had a more defined vertical distribution. ConclusionsThe structure and composition of litters promoted differences in the vertical distribution of oribatids. In Pinus, thick unaltered litter showed a marked vertical gradient of mites along levels while in Eucalyptus, thin and easily decomposing litter, showed no vertical patterns. ImplicationsAssessment and management of soil biodiversity in artificial woodlands.","PeriodicalId":21818,"journal":{"name":"Soil Research","volume":"19 1","pages":""},"PeriodicalIF":1.2000,"publicationDate":"2024-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Soil Research","FirstCategoryId":"97","ListUrlMain":"https://doi.org/10.1071/sr23160","RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"SOIL SCIENCE","Score":null,"Total":0}

引用次数: 0

Abstract

Context

Oribatid mites are the most abundant taxon in forest soils that rely on porosity and organic matter availability. Exotic forests of Pinus radiata and Eucalyptus globulus planted over native grasslands in the Pampas region of Argentina have produced modification in soil properties, which can affect the composition and structure of native oribatids communities.

Aims

To compare oribatid communities in soils under artificial woodlands of pine and eucalyptus and to assess the vertical distribution of oribatids in relation to edaphic variables.

Methods

In each forest, oribatids were collected from three levels of the A horizon: (1) litter layer; (2) 0–5 cm; and (3) 5–10 cm. Edaphic variables measured were penetration resistance, bulk density, total porosity, pH and water content and luminosity at soil level. Density, species richness, diversity and evenness of oribatids were calculated in each level of each forest. Comparisons were made through multivariate analyses.

Key results

Edaphic variables showed no significant differences between plots but litters were structurally different. Richness and diversity showed no differences between plots whereas evenness was significantly higher in plot P. Density had higher values in the litter layer of both forests. Canonical Analysis of Principal Coordinates (CAP) showed that Pine plots had a more defined vertical distribution.

Conclusions

The structure and composition of litters promoted differences in the vertical distribution of oribatids. In Pinus, thick unaltered litter showed a marked vertical gradient of mites along levels while in Eucalyptus, thin and easily decomposing litter, showed no vertical patterns.

Implications

Assessment and management of soil biodiversity in artificial woodlands.

查看原文本刊更多论文

在温带草原上种植的两片人工林中的嗜水鸟螨（Acari: Oribatida）的垂直分布情况

背景鸟螨是森林土壤中最丰富的类群，森林土壤依赖于孔隙度和有机质的供应。在阿根廷潘帕斯地区的原生草地上种植的松树和桉树外来林改变了土壤性质，从而影响了原生眶螨群落的组成和结构。目的比较松树和桉树人工林下土壤中的兽脚类群落，评估兽脚类群落的垂直分布与环境变量的关系。方法在每片森林中，从 A 层的三个层面采集口足类动物：(1) 凋落物层；(2) 0-5 厘米；(3) 5-10 厘米。测量的土壤变量包括土壤层的渗透阻力、容重、总孔隙度、pH 值、含水量和光照度。计算了每层森林中鸟类的密度、物种丰富度、多样性和均匀度。通过多元分析进行了比较。主要结果形质变量在不同地块之间没有显著差异，但鸟巢在结构上有所不同。丰富度和多样性在不同地块之间没有差异，而均匀度在 P 地块明显较高。主坐标典型分析（CAP）显示，松树地块的垂直分布更明确。结论：枯落物的结构和组成促进了鸟类垂直分布的差异。在松树中，厚而未改变的枯落物显示出明显的垂直梯度，而在桉树中，薄而容易腐烂的枯落物则没有显示出垂直分布模式。意义人工林地土壤生物多样性的评估和管理。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Soil Research SOIL SCIENCE-

CiteScore

3.20

自引率

6.20%

发文量

审稿时长

4.5 months

期刊介绍： Soil Research (formerly known as Australian Journal of Soil Research) is an international journal that aims to rapidly publish high-quality, novel research about fundamental and applied aspects of soil science. As well as publishing in traditional aspects of soil biology, soil physics and soil chemistry across terrestrial ecosystems, the journal welcomes manuscripts dealing with wider interactions of soils with the environment. Soil Research is published with the endorsement of the Commonwealth Scientific and Industrial Research Organisation (CSIRO) and the Australian Academy of Science.