DOI: 10.1016/j.foreco.2013.10.033
Scopus记录号: 2-s2.0-84891740416
论文题名: Can seed production and restricted dispersal limit recruitment in Pinus pinaster Aiton from the Spanish Northern Plateau?
作者: Juez L. ; González-Martínez S.C. ; Nanos N. ; De-Lucas A.I. ; Ordóñez C. ; del Peso C. ; Bravo F.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2014
卷: 313 起始页码: 329
结束页码: 339
语种: 英语
英文关键词: Dispersal kernel
; Dispersion
; Mating system
; Mediterranean region
; Seed rain
; Sortie-ND
Scopus关键词: Dispersal kernel
; Mating system
; Mediterranean region
; Seed rain
; Sortie-ND
; Dispersion (waves)
; Dispersions
; Rain
; Reforestation
; basin
; colonization
; data acquisition
; dispersal
; dispersion
; fecundity
; female
; fertility
; forest management
; recruitment (population dynamics)
; regeneration
; reproductive effort
; reproductive strategy
; seed production
; tree
; wind velocity
; Mediterranean Region
; Mediterranean Sea
; Spain
; Pinus pinaster
英文摘要: Natural regeneration faces increasing difficulties in dry forests from the Mediterranean basin, including for normally well-regenerating species such as maritime pine (Pinus pinaster Aiton). In this paper, we studied female fertility, seed dispersal and spread rates in P. pinaster from the Spanish Northern Plateau, where natural regeneration failure is a main concern for forest managers. For this purpose we periodically collected data from seed traps and trees located at two core locations across several years. We found significant variation in interannual cone production, with the best seed trees being the same across years. In addition, we found highly skewed distributions of female reproductive effort and large fertility differences across stands located few kilometres away. Annual seed dispersal kernels fitted lognormal or 2Dt models depending on the stand analysed, with median dispersal distances between 14 and 25. m. Kernels fitted for maximum dispersal periods showed an outstanding intraseasonal variation of median dispersal distances, from 10 to 54. m, in association to variable patterns of rainfall and maximum wind speed. The amount of seed produced appeared to be enough to guarantee the natural regeneration of the stands during the typical 20-year regeneration period. Colonisation simulations concluded that Mediterranean maritime pine has a notable dispersion capacity, which is strongly influenced by levels of fecundity and, especially, by the number and frequency of long-distance dispersal events. The latter play a key role in tree dispersion processes through enlarging the occupied area and fostering the invasion of abandoned crop land. © 2013 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/66171
Appears in Collections: 影响、适应和脆弱性
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作者单位: Sustainable Forest Management Research Institute, University of Valladolid - INIA, Avda. Madrid 44, E34004 Palencia, Spain; Department of Forest Ecology and Genetics, CIFOR-INIA, Madrid, Spain; School of Forest Engineering - Madrid Technical University, E28040 Madrid, Spain; Genetic Diagnostic Laboratory, Department of Biotechnology, ITAGRA.CT, Campus La Yutera, Avenida de Madrid 44, E34004 Palencia, Spain
Recommended Citation:
Juez L.,González-Martínez S.C.,Nanos N.,et al. Can seed production and restricted dispersal limit recruitment in Pinus pinaster Aiton from the Spanish Northern Plateau?[J]. Forest Ecology and Management,2014-01-01,313