Advanced   Register
XTBG OpenIR  > 森林生态研究组  > 期刊论文

title: Environmental correlates underlying elevational richness, abundance, and biomass patterns of multi-feeding guilds in litter invertebrates across the treeline
author: Xu, Guorui;  Zhang, Shuang;  Zhang, Yuxin;  Ma, Keming
Issued Date: 2018
Abstract: Elevational richness patterns and underlying environmental correlates have contributed greatly to a range of general theories of biodiversity. However, the mechanisms underlying elevational abundance and biomass patterns across several trophic levels in belowground food webs remain largely unknown. In this study, we aimed to disentangle the relationships between the elevational patterns of different trophic levels of litter invertebrates and their underlying environmental correlates for two contrasting ecosystems separated by the treeline. We sampled 119 plots from 1020 to 1770 asl in forest and 21 plots from 1790 to 2280 asl in meadow on Dongling Mountain, northwest of Beijing, China. Four functional guilds were divided based on feeding regime: omnivores, herbivores, predators, and detritivores. We used eigenvector-based spatial filters to account for spatial autocorrelation and multi-model selection to determine the best environmental correlates for the community attributes of the different feeding guilds. The results showed that the richness, abundance and biomass of omnivores declined with increasing elevation in the meadow, whereas there was a hump-shaped richness pattern for detritivores. The richness and abundance of different feeding guilds were positively correlated in the forest, while not in the meadow. In the forest, the variances of richness in omnivores, predators, and detritivores were mostly correlated with litter thickness, with omnivores being best explained by mean annual temperature in the meadow. In conclusion, hump-shaped elevational richness, abundance and biomass patterns driven by the forest gradient below the treeline existed in all feeding guilds of litter invertebrates. Climate replaced productivity as the primary factor that drove the richness patterns of omnivores above the treeline, whereas heterogeneity replaced climate for herbivores. Our results highlight that the correlated elevational richness, abundance, and biomass patterns of feeding guilds are ecosystem-dependent and that the underlying environmental correlates shifted at the treeline for most feeding guilds. (C) 2018 Elsevier B.V. All rights reserved.
Source: SCIENCE OF THE TOTAL ENVIRONMENT
Related URLs: 10.1016/j.scitotenv.2018.03.212
Appears in Collections:森林生态研究组_期刊论文

Files in This Item:

File SizeFormat
Environmental correlates underlying elevational richness, abundance, and biomass patterns of multi-feeding guilds in litter invertebrates across the treeline.pdf1479KbAdobe PDFView  Download


全文许可: Creative Commons 署名-非商业性使用-相同方式共享 3.0

Recommended Citation:
Xu, Guorui,Zhang, Shuang,Zhang, Yuxin,et al. Environmental Correlates Underlying Elevational Richness, Abundance, And Biomass Patterns Of Multi-feeding Guilds In Litter Invertebrates Across The Treeline[J]. Science Of The Total Environment,2018,633(X):529-538.

SCI Citaion Data:
Service
 Recommend this item
 Sava as my favorate item
 Show this item's statistics
 Export Endnote File
Google Scholar
 Similar articles in Google Scholar
 [Xu, Guorui]'s Articles
 [Zhang, Shuang]'s Articles
 [Zhang, Yuxin]'s Articles
CSDL cross search
 Similar articles in CSDL Cross Search
 [Xu, Guorui]‘s Articles
 [Zhang, Shuang]‘s Articles
 [Zhang, Yuxin]‘s Articles
Scirus search
 Similar articles in Scirus
Related Copyright Policies
Null
Social Bookmarking
  Add to CiteULike  Add to Connotea  Add to Del.icio.us  Add to Digg  Add to Reddit 
所有评论 (0)
暂无评论
 
评注功能仅针对注册用户开放,请您登录
您对该条目有什么异议,请填写以下表单,管理员会尽快联系您。
内 容:
Email:  *
单位:
验证码:   刷新
您在IR的使用过程中有什么好的想法或者建议可以反馈给我们。
标 题:
 *
内 容:
Email:  *
验证码:   刷新

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.

 

 

Valid XHTML 1.0!
Powered by CSpace