DOI: 10.1016/j.foreco.2016.11.012
Scopus记录号: 2-s2.0-84999700036
论文题名: Different role of host and habitat features in determining spatial distribution of mistletoe infection
作者: Sayad E. ; Boshkar E. ; Gholami S.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2017
卷: 384 起始页码: 323
结束页码: 330
语种: 英语
英文关键词: Cross-correlation
; Forest structure
; Loranthus europaeus
; Spatial ecology
; Tree decline
Scopus关键词: Climate change
; Ecology
; Ecosystems
; Forestry
; Population distribution
; Cross correlations
; Forest structure
; Loranthus europaeus
; Spatial ecology
; Tree decline
; Spatial distribution
; climate change
; correlation
; deciduous forest
; habitat fragmentation
; habitat structure
; host
; infectivity
; mortality
; parasitic plant
; persistence
; population decline
; size effect
; spatial analysis
; spatial distribution
; stand structure
; Iran
; Zagros
; Loranthus europaeus
英文摘要: Tree mortality and forest decline have been attributed to the several factors including mistletoe infection in Oak Zagros forest, western Iran. As a result of climate change and fragmentation Loranthus europaeus has the potential to be more abundant and distributed in these forests. However, little attention has been given to the need for an ecosystem approach to their management. To manage it, scientific understanding of its ecology including recognition of mistletoe spatial pattern and its shaping mechanisms are essential. Using spatial analysis, we examined the spatial distribution pattern of mistletoes in terms of life stages and vertical and horizontal host crown classification in relation to its controlling mechanisms, including host and habitat features. The results showed that twenty-three percent of the trees were infected, infected trees having an average of 4.08 mistletoes. Mistletoes were higher in the middle, lower and inner portion of the infected trees crown, corroborating that mistletoes were aggregated in these parts of the crown. The small scale pattern (451 m) of adult mistletoe distribution was observed, whereas juvenile and medium-aged mistletoes were spread at larger distances of 5110 and 4537 m. Mistletoe prevalence spatially autocorrelated up to about 2 km while plot intensity distributed at small range of 316 m. The results suggest that mistletoes first establish in the middle crown part then develop downward into lower crown. The spatial patterns of plot intensity, adult and lower crown mistletoes with smaller ranges were spatially correlated to host size (crown diameter and area). Whereas habitat features were the predictors of the large ranges of prevalence and juvenile mistletoe. To manage mistletoes, considering their roles as keystone species, a focus on reducing the intensity of infection would be of management value at large distances considering spatial relationship between mistletoe and host and habitat features. © 2016 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/64583
Appears in Collections: 影响、适应和脆弱性
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作者单位: Natural Resources Department, Faculty of Agriculture, Razi University, Kermanshah, Iran
Recommended Citation:
Sayad E.,Boshkar E.,Gholami S.. Different role of host and habitat features in determining spatial distribution of mistletoe infection[J]. Forest Ecology and Management,2017-01-01,384