DOI: 10.1016/j.foreco.2014.05.039
Scopus记录号: 2-s2.0-84902271831
论文题名: Quantifying safe seed transfer distance and impacts of tree breeding on adaptation
作者: O'Neill G.A. ; Stoehr M. ; Jaquish B.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2014
卷: 328 起始页码: 122
结束页码: 130
语种: 英语
英文关键词: Artificial selection
; Euclidean distance
; Maladaptation
; Provenance test
; Seed zones
; Transfer function
Scopus关键词: Transfer functions
; Artificial selection
; Euclidean distance
; Maladaptation
; Provenance tests
; Seed zones
; Forestry
; adaptation
; climate change
; forest health
; growth modeling
; plantation forestry
; provenance
; transfer function
; tree
; Climates
; Forestry
; Seeds
; British Columbia
; Canada
英文摘要: Tree seed zones that are too large can compromise forest plantation health and productivity due to maladaptation arising from some populations being transferred long distances, whereas tree seed zones that are too small can result in unwarranted seed collections or excessive numbers of breeding zones. There has been little discussion, however, regarding the development and use of transfer functions for quantifying critical (i.e., safe) seed transfer distance (CSTD) or how artificial selection might affect CSTD. Using data from a large, multi-site provenance test for Douglas-fir and Interior spruce containing both genetically selected and wildstand seed sources, we illustrate an approach to quantify CSTD using Euclidean climate transfer distance modeled with a half-normal transfer function. A wide range of CSTDs was calculated and most transfer functions showed that selected seed sources were considerably taller than wildstand seed sources when transferred short or medium climate distances. Contrarily, selected seed sources were shorter than wildstand seed sources when transferred long climate distances. CSTDs were shorter for Douglas-fir than for spruce, and shorter when calculated using height rather than survival as the transfer function response variable.These findings suggest that (1) unfavorable changes in adaptation due to artificial selection will be observable only when seed is transferred considerably beyond the CSTD; (2) differences in adaptation between selected and wildstand seed classes may not warrant separate seed transfer guidelines for these seed classes; (3) British Columbia's Douglas-fir and Interior spruce breeding programs are generating significant height gain; (4) methods presented here produce logical transfer functions that can be used to calculate reliable site-specific CSTDs; (5) use of conservative (short) CSTDs may be advisable when tests are young; and (6) provenance tests should be located in disparate climates. © 2014 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/65839
Appears in Collections: 影响、适应和脆弱性
There are no files associated with this item.
作者单位: BC Ministry of Forests, Lands and Natural Resource Operations, Kalamalka Forestry Centre, 3401 Reservoir Road, Vernon, BC V1B 2C7, Canada; BC Ministry of Forests, Lands and Natural Resource Operations, PO Box 9525, Stn. Prov. Govt., Victoria, BC V8W 9C3, Canada
Recommended Citation:
O'Neill G.A.,Stoehr M.,Jaquish B.. Quantifying safe seed transfer distance and impacts of tree breeding on adaptation[J]. Forest Ecology and Management,2014-01-01,328