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Title: Temporal effects of disturbance on community composition in simulated stage‐structured plant communities

Abstract

In an era of global environmental change, understanding how disturbance affects the dynamics of ecological communities is crucial. However, few studies have theoretically explored the potential influence of disturbance including both intensity and frequency on compositional change over time in communities with stage structure. A spatially explicit, individual- based model was constructed incorporating the various demographic responses to disturbance of plants at two different growth stages: seed-lings and adults. In the model, we assumed that individuals within each stage were demographically equivalent (neutral) but differed between stages. We simulated a common phenomenon that seedlings suffered more from disturbance such as grazing and fire than adults. We showed how stage- structured communities of seedlings and adults responded to disturbance with various levels of disturbance frequency and in-tensity. In “undisturbed” simulations, the relationship between average species abundance (defined here as the total number of individuals divided by species richness) and community composition turnover (measured by the Bray–Curtis similarity index) was asymptotic. However, in strongly “disturbed” simulations with the between- disturbance intervals greater than one, this relationship became unimodal. Stage- dependent response to disturbance underlay the above discrepancy between undisturbed and disturbed communities.

Authors:
 [1];  [2];  [3];  [4]; ORCiD logo [1]
  1. SYSU‐Alberta Joint Lab for Biodiversity ConservationDepartment of EcologyState Key Laboratory of Biocontrol and School of Life SciencesSun Yat‐sen University Guangzhou China
  2. Guangxi Key Laboratory of Plant Conservation and Restoration Ecology in Karst TerrainGuangxi Institute of BotanyGuangxi Zhuang Autonomous Region and Chinese Academy of Sciences Guilin China
  3. Centre for Research in BiosciencesUniversity of the West of England Bristol UK
  4. Conservation Ecology CenterSmithsonian Conservation Biology InstituteNational Zoological Park Front Royal VA USA, Institute for Sustainability, Energy, and EnvironmentUniversity of Illinois at Urbana‐Champaign Urbana IL USA
Publication Date:
Research Org.:
Univ. of Illinois, Urbana-Champaign, IL (United States); Smithsonian Institution, Washington, D.C. (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1410185
Alternate Identifier(s):
OSTI ID: 1410357; OSTI ID: 1508772
Grant/Contract Number:  
DE‐SC0010039; DE‐SC0008085; SC0008085; SC0010039
Resource Type:
Published Article
Journal Name:
Ecology and Evolution
Additional Journal Information:
Journal Name: Ecology and Evolution Journal Volume: 8 Journal Issue: 1; Journal ID: ISSN 2045-7758
Publisher:
Wiley Blackwell (John Wiley & Sons)
Country of Publication:
United Kingdom
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; compositional change; grid-based model; individual-based model; neutral model; stage structure

Citation Formats

Wang, Youshi, Wen, Shujun, Farnon Ellwood, M. D., Miller, Adam D., and Chu, Chengjin. Temporal effects of disturbance on community composition in simulated stage‐structured plant communities. United Kingdom: N. p., 2017. Web. doi:10.1002/ece3.3660.
Wang, Youshi, Wen, Shujun, Farnon Ellwood, M. D., Miller, Adam D., & Chu, Chengjin. Temporal effects of disturbance on community composition in simulated stage‐structured plant communities. United Kingdom. doi:10.1002/ece3.3660.
Wang, Youshi, Wen, Shujun, Farnon Ellwood, M. D., Miller, Adam D., and Chu, Chengjin. Thu . "Temporal effects of disturbance on community composition in simulated stage‐structured plant communities". United Kingdom. doi:10.1002/ece3.3660.
@article{osti_1410185,
title = {Temporal effects of disturbance on community composition in simulated stage‐structured plant communities},
author = {Wang, Youshi and Wen, Shujun and Farnon Ellwood, M. D. and Miller, Adam D. and Chu, Chengjin},
abstractNote = {In an era of global environmental change, understanding how disturbance affects the dynamics of ecological communities is crucial. However, few studies have theoretically explored the potential influence of disturbance including both intensity and frequency on compositional change over time in communities with stage structure. A spatially explicit, individual- based model was constructed incorporating the various demographic responses to disturbance of plants at two different growth stages: seed-lings and adults. In the model, we assumed that individuals within each stage were demographically equivalent (neutral) but differed between stages. We simulated a common phenomenon that seedlings suffered more from disturbance such as grazing and fire than adults. We showed how stage- structured communities of seedlings and adults responded to disturbance with various levels of disturbance frequency and in-tensity. In “undisturbed” simulations, the relationship between average species abundance (defined here as the total number of individuals divided by species richness) and community composition turnover (measured by the Bray–Curtis similarity index) was asymptotic. However, in strongly “disturbed” simulations with the between- disturbance intervals greater than one, this relationship became unimodal. Stage- dependent response to disturbance underlay the above discrepancy between undisturbed and disturbed communities.},
doi = {10.1002/ece3.3660},
journal = {Ecology and Evolution},
number = 1,
volume = 8,
place = {United Kingdom},
year = {2017},
month = {11}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
DOI: 10.1002/ece3.3660

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Cited by: 1 work
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Figures / Tables:

TABLE 1 TABLE 1: Model parameters, their meanings, and values taken

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    Figures/Tables have been extracted from DOE-funded journal article accepted manuscripts.