DOI: 10.1016/j.foreco.2013.10.040
Scopus记录号: 2-s2.0-84888089453
论文题名: Estimating the impacts of browsers on forest understories using a modified index of community composition
作者: Filazzola A. ; Tanentzap A.J. ; Bazely D.R.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2014
卷: 313 起始页码: 10
结束页码: 16
语种: 英语
英文关键词: Browsing
; Deciduous forests
; Ecological indicators
; Monitoring
; Wildlife management
Scopus关键词: Conservation
; Management
; Managers
; Monitoring
; Browsing
; Community composition
; Conservation actions
; Cost-effective approach
; Deciduous forest
; Ecological indicators
; Life-history traits
; Wildlife management
; Forestry
; browsing
; community composition
; community response
; cost-benefit analysis
; deer
; estimation method
; forest ecosystem
; forest management
; ground cover
; life history trait
; monitoring
; plant community
; temperate environment
; understory
; wild population
; Conservation
; Ecosystems
; Forests
; Hardwoods
; Indicators
; Monitoring
; Cervidae
; Odocoileus virginianus
英文摘要: Increases in deer densities throughout temperate regions are negatively affecting forest conservation, but approaches for estimating these impacts are labour intensive and thus prohibitive for many managers. Plant indicators provide a rapid and cost-effective approach for measuring the impacts of disturbances on forest communities, and may inform managers both about the need for conservation actions to mitigate deer disturbance and their outcomes. The Floristic Quality Index (FQI) is one metric that assesses plant community composition by assigning coefficients of conservatism ( C) to individual species based on their life history traits, including responses to disturbances. FQI should therefore reflect the community-level impacts of browsing as a disturbance, but little information exists on its use within forests or along browsing gradients. Here, we improved the classical measure of FQI by generating a new Floristic Quality Abundance Index (FQAI) that better captures plant community responses to disturbance. We then tested whether it reflects local densities of white-tailed deer ( Odocoileus virginianus) and their impacts on forest understories using ground cover data from twelve sites across south-eastern Ontario, Canada. By excluding deer at five sites, we found that they preferentially removed plant species with lower C values, thereby explaining positive relationships between deer densities and FQAI across our sites. We propose that FQAI is an assessment tool that may improve the effectiveness of limited conservation resources for monitoring deer impacts. © 2013 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/66182
Appears in Collections: 影响、适应和脆弱性
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作者单位: Department of Biology, York University, 4700 Keele Street, Toronto, ON M3J 1P3, Canada
Recommended Citation:
Filazzola A.,Tanentzap A.J.,Bazely D.R.. Estimating the impacts of browsers on forest understories using a modified index of community composition[J]. Forest Ecology and Management,2014-01-01,313