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Community occupancy before-after-control-impact (CO-BACI) analysis of Hurricane Gudrun on Swedish forest birds

Russell, James C.; Stjernman, Martin LU ; Lindström, Åke LU and Smith, Henrik LU (2015) In Ecological Applications 25(3). p.685-694
Abstract
Resilience of ecological communities to perturbation is important in the face of increased global change from anthropogenic stressors. Monitoring is required to detect the impact of, and recovery from, perturbations, and before-after-control-impact (BACI) analysis provides a powerful framework in this regard. However, species in a community are not observed with perfect detection, and occupancy analysis is required to correct for imperfect detectability of species. We present a Bayesian community occupancy before-after-control-impact (CO-BACI) framework to monitor ecological community response to perturbation when constituent species are imperfectly detected. We test the power of the model to detect changes in community composition... (More)
Resilience of ecological communities to perturbation is important in the face of increased global change from anthropogenic stressors. Monitoring is required to detect the impact of, and recovery from, perturbations, and before-after-control-impact (BACI) analysis provides a powerful framework in this regard. However, species in a community are not observed with perfect detection, and occupancy analysis is required to correct for imperfect detectability of species. We present a Bayesian community occupancy before-after-control-impact (CO-BACI) framework to monitor ecological community response to perturbation when constituent species are imperfectly detected. We test the power of the model to detect changes in community composition following an acute perturbation with simulation. We then apply the model to a study of the impact of a large hurricane on the forest bird community of Sweden, using data from the national bird survey scheme. Although simulation shows the model can detect changes in community occupancy following an acute perturbation, application to a Swedish forest bird community following a major hurricane detected no change in community occupancy despite widespread forest loss. Birds with landscape occupancy less than 50% required correcting for detectability. We conclude that CO-BACI analysis is a useful tool that can incorporate rare species in analyses and detect occupancy changes in ecological communities following perturbation, but, because it does not include abundance, some impacts may be overlooked. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Bayesian framework, before-after-control-impact study, community, stability, forest birds, Hurricane Erwin, Hurricane Gudrun, perturbation, resilience, Swedish bird survey
in
Ecological Applications
volume
25
issue
3
pages
685 - 694
publisher
Ecological Society of America
external identifiers
  • wos:000351849700009
  • scopus:84926197792
ISSN
1051-0761
DOI
10.1890/14-0645.1.sm
language
English
LU publication?
yes
id
45e3d921-2dbb-4efb-ad8b-990cff3d64e7 (old id 5277791)
date added to LUP
2015-04-24 09:26:34
date last changed
2017-04-23 03:56:54
@article{45e3d921-2dbb-4efb-ad8b-990cff3d64e7,
  abstract     = {Resilience of ecological communities to perturbation is important in the face of increased global change from anthropogenic stressors. Monitoring is required to detect the impact of, and recovery from, perturbations, and before-after-control-impact (BACI) analysis provides a powerful framework in this regard. However, species in a community are not observed with perfect detection, and occupancy analysis is required to correct for imperfect detectability of species. We present a Bayesian community occupancy before-after-control-impact (CO-BACI) framework to monitor ecological community response to perturbation when constituent species are imperfectly detected. We test the power of the model to detect changes in community composition following an acute perturbation with simulation. We then apply the model to a study of the impact of a large hurricane on the forest bird community of Sweden, using data from the national bird survey scheme. Although simulation shows the model can detect changes in community occupancy following an acute perturbation, application to a Swedish forest bird community following a major hurricane detected no change in community occupancy despite widespread forest loss. Birds with landscape occupancy less than 50% required correcting for detectability. We conclude that CO-BACI analysis is a useful tool that can incorporate rare species in analyses and detect occupancy changes in ecological communities following perturbation, but, because it does not include abundance, some impacts may be overlooked.},
  author       = {Russell, James C. and Stjernman, Martin and Lindström, Åke and Smith, Henrik},
  issn         = {1051-0761},
  keyword      = {Bayesian framework,before-after-control-impact study,community,stability,forest birds,Hurricane Erwin,Hurricane Gudrun,perturbation,resilience,Swedish bird survey},
  language     = {eng},
  number       = {3},
  pages        = {685--694},
  publisher    = {Ecological Society of America},
  series       = {Ecological Applications},
  title        = {Community occupancy before-after-control-impact (CO-BACI) analysis of Hurricane Gudrun on Swedish forest birds},
  url          = {http://dx.doi.org/10.1890/14-0645.1.sm},
  volume       = {25},
  year         = {2015},
}