DOI: 10.1016/j.foreco.2014.01.020
Scopus记录号: 2-s2.0-84893544176
论文题名: The value of information in conservation planning: Selecting retention trees for lichen conservation
作者: Perhans K. ; Haight R.G. ; Gustafsson L.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2014
卷: 318 起始页码: 175
结束页码: 182
语种: 英语
英文关键词: Biodiversity
; Cost-effectiveness
; Epiphyte
; Forestry
; Information cost
; Sweden
英文摘要: Conservation planning studies at small scales such as forest stands and below are uncommon. However, for retention forestry, developed during the last two decades and with current wide and increasing application in boreal and temperate regions, the need for cost-effective selection of individual trees is evident. In retention forestry certain trees are left at final harvest to promote flora and fauna. There is also a scarcity of studies on information costs and how these relate to the cost-effectiveness of conservation. We addressed both of these issues by studying whether decisions about the retention of aspen Populus tremula L. trees can be made more cost-effectively by including information about tree characteristics. We analyzed data from 12 recently harvested stands in middle Sweden containing 131 epiphytic lichen species (a biodiversity proxy) on 360 aspen trees. We related the presence of lichen species to bark and stem attributes and used those relationships to prioritize trees for retention. We estimated the value of using different sets of survey information (lichens, tree characteristics) to select retention trees to achieve various conservation goals. Depending on species or species groups of interest, and the type of tree information being collected, the value of collecting the information is up to 20% of the total value of all potential retention trees, which, given current labor costs, allows up to four hours for planning and selecting the right trees on an average-sized clearcut. The current practice of almost randomly selecting aspen trees to retain at final harvest can be improved by adding easily collected information on tree characteristics, such as black-colored bark, slow tree growth, inclining stems and speckled bark. This can lead to attainment of a given level of a conservation goal (like maximizing the number of lichen species of conservation concern) with fewer retention trees. Inventory of tree information often can be performed quickly, and if part of the gains from using such information to guide tree selection would be spent on additional conservation efforts, this would benefit biodiversity. Studies on more organism groups and tree species are needed to increase the applicability of results. © 2014 The Authors. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/66050
Appears in Collections: 影响、适应和脆弱性
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作者单位: Department of Ecology, Swedish University of Agricultural Sciences, P.O. Box 7044, SE-750 07 Uppsala, Sweden; U.S. Forest Service Northern Research Station, 1992 Folwell Avenue, St. Paul, MN 55108, United States
Recommended Citation:
Perhans K.,Haight R.G.,Gustafsson L.. The value of information in conservation planning: Selecting retention trees for lichen conservation[J]. Forest Ecology and Management,2014-01-01,318