DOI: 10.1016/j.foreco.2013.10.002
Scopus记录号: 2-s2.0-84888132517
论文题名: Spatial relationship between Phytophthora ramorum and roads or streams in Oregon tanoak forests
作者: Peterson E. ; Hansen E. ; Kanaskie A.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2014
卷: 312 起始页码: 216
结束页码: 224
语种: 英语
英文关键词: Forest pathology
; Invasive pathogen
; Phytophthora ramorum
; Restricted randomization
; Spatial spread
; Sudden oak death
Scopus关键词: Invasive pathogens
; Phytophthora ramorum
; Restricted randomization
; Spatial spread
; Sudden oak death
; Ecology
; Forestry
; assessment method
; deciduous tree
; disease spread
; dispersal
; environmental conditions
; epidemic
; fungal disease
; host-parasite interaction
; inoculation
; microclimate
; native species
; pathology
; spatial analysis
; stream
; topography
; Ecology
; Forestry
; Mortality
; Quercus
; Oregon
; United States
; Lithocarpus
; Phytophthora
; Phytophthora ramorum
; Quercus
英文摘要: The pathogen, Phytophthora ramorum, causal agent of sudden oak death (SOD) of oaks and tanoaks, continues to expand its range within Oregon despite an effort to eradicate it from native forests. With its early detection and prompt removal of infected hosts, the Oregon SOD eradication program has produced a landscape distribution of disease resulting predominantly from the long distance (100. m to 4. km) dispersal of inoculum between sites. Using a regionally restricted randomization test reflecting the south to north intensification of the SOD epidemic in Oregon, we assessed if the movement of P. ramorum between sites was spatially dependant upon roads and streams, topographic features associated with the landscape-scale movement of soil and water borne inoculum of related Phytophthora spp. Dissimilar to other forest Phytophthora spp. we found no association between SOD sites and the road network. We did, however, determine that SOD sites are occurring closer to streams than would be expected by chance, especially in regions with microclimates less conducive to establishment. Environmental conditions and/or dispersal mechanisms associated with streams may contribute to the distribution of SOD in Oregon tanoak forests. Monitoring and management should therefore concentrate on susceptible forests in close proximity to streams, especially in stands further inland from a coastal climate. © 2013 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/66196
Appears in Collections: 影响、适应和脆弱性
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作者单位: Department of Forest Engineering, Resources and Management, Oregon State University, 280 Peavy Hall, Corvallis, OR 97331, United States; Department of Botany and Plant Pathology, Oregon State University, 2082 Cordley Hall, Corvallis, OR 97331, United States; Oregon Department of Forestry, 2600 State Street, Salem, OR 97301, United States
Recommended Citation:
Peterson E.,Hansen E.,Kanaskie A.. Spatial relationship between Phytophthora ramorum and roads or streams in Oregon tanoak forests[J]. Forest Ecology and Management,2014-01-01,312