DOI: 10.1016/j.foreco.2012.09.036
Scopus记录号: 2-s2.0-84869882573
论文题名: Landscape species pools and connectivity patterns influence tree species richness in both managed and unmanaged stands
作者: Martín-Queller E. ; Saura S.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2013
卷: 289 起始页码: 123
结束页码: 132
语种: 英语
英文关键词: Forest biodiversity
; Graph theory
; Long distance seed dispersal
; Metacommunity
; Partial harvesting
Scopus关键词: Annual precipitation
; Central Spain
; Connectivity pattern
; Forest biodiversity
; Forest cover
; Forest habitats
; Forest planning
; Forest stand
; Hierarchical modeling
; Landscape level
; Landscape scale
; Landscape species
; Mediterranean region
; Metacommunity
; Metapopulation dynamics
; Partial harvesting
; Seed dispersal
; Seed source
; Species richness
; Study areas
; Time lag
; Topdown
; Tree species
; Biodiversity
; Ecosystems
; Graph theory
; Lithology
; Forestry
; coexistence
; colonization
; connectivity
; disturbance
; environmental factor
; forest management
; graphical method
; harvesting
; landscape ecology
; metapopulation
; plant community
; rainfall
; seed dispersal
; shade tolerance
; species pool
; species richness
; stand structure
; Biodiversity
; Ecosystems
; Forestry
; Harvesting
; Rain
; Spain
英文摘要: Disturbance intensity and metapopulation dynamics are among the theoretical mechanisms explaining species coexistence at the local and landscape scale. Both mechanisms might interact, so that the consequences of local disturbances might depend on long distance dispersal events. In this study we examined whether the richness of tree species potentially able to colonize a locality from the surroundings was associated with the tree species richness observed in that locality, and/or with the response of that richness to partial harvesting. The study was located in a Mediterranean region in central Spain where partially harvested forests had been found to have more tree species than unmanaged forests. We used a top-down hierarchical modeling structure to account for the effect of other factors such as climate, lithology and amount of forest cover at the landscape scale. Species richness of trees was strongly associated to annual precipitation, and was maximized at intermediate rainfall levels. Under homogeneous climate and lithological conditions, the composition and connectivity of seed sources in the landscape seemed to play a more relevant role explaining tree species richness than the amount of forest habitat in the surroundings. Particularly, higher species richness was observed in forest stands susceptible of receiving a higher diversity of seed fluxes. Patterns in the response of species richness to partial harvesting were less clearly explained by differences in the diversity of potential seed fluxes, but time lags in the responses, or differences in the proportion of shade-tolerant species in the landscape could mediate this interaction. Stronger importance of the amount of forest habitat and diversity of potential seed fluxes may be masked by their correlations with precipitation gradients in the study area. Our results emphasize the need of a wide scale approach to forest planning in order to be able to account for and to influence determinant processes of diversity patterns from the stand to the landscape levels. © 2012 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/66802
Appears in Collections: 影响、适应和脆弱性
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作者单位: Departamento de Economía y Gestión Forestal, ETSI Montes, Universidad Politécnica de Madrid, Ciudad Universitaria s/n, 28040 Madrid, Spain
Recommended Citation:
Martín-Queller E.,Saura S.. Landscape species pools and connectivity patterns influence tree species richness in both managed and unmanaged stands[J]. Forest Ecology and Management,2013-01-01,289