DOI: 10.1016/j.foreco.2017.03.007
Scopus记录号: 2-s2.0-85015703796
论文题名: Canopy distribution and survey detectability of a rare old-growth forest lichen
作者: Miller J.E.D. ; Villella J. ; Carey G. ; Carlberg T. ; Root H.T.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2017
卷: 392 起始页码: 195
结束页码: 201
语种: 英语
英文关键词: Adaptation
; Cyanolichens
; Epiphytic lichens
; Lobaria
; Range limits
; Survey and manage
Scopus关键词: Biodiversity
; Climate change
; Conservation
; Ecosystems
; Fungi
; Population distribution
; Population statistics
; Surveys
; Adaptation
; Cyanolichens
; Epiphytic lichens
; Lobaria
; Range limits
; Forestry
; Lobaria
; Lobaria oregana
英文摘要: Forest managers in many parts of the world are charged with protecting rare lichen species, including species growing near their range limits. Rare lichens may be particularly vulnerable to effects of climate change, and conserving lichen diversity necessitates understanding factors that limit species distributions. Habitat suitability envelopes for lichens are shifting as the climate changes, but it is unclear whether and how local (e.g., within-tree) lichen species distributions will shift. Conserving lichen biodiversity also requires effective field surveys to detect and monitor rare lichen populations. However, the reliability of rare lichen survey methods currently used across global forest lands is rarely tested. In this study, we quantify the canopy distribution of an epiphytic old-growth forest cyanolichen near its southern range limit and test whether ground surveys reliably detect canopy populations. Near its southern range limit, Lobaria oregana was most abundant in two distinct zones within tree crowns: on branches of large trees in the mid-crown, and on boles of small trees near ground level. The abundance of this species near ground level suggests that lichens may benefit from cooler, wetter microclimates near the equatorial edges of their ranges. Maintaining these microclimate habitats may be a key to long-term viability of rear edge lichen populations. Targeted ground surveys reliably detected L. oregana in litterfall underneath trees where it was abundant in the crowns. However, ground surveys did not reliably detect the lichen underneath trees when it occurred in the crowns in low abundance. Our results suggest that ground surveys are useful for characterizing abundant lichen species, but that canopy surveys (e.g., tree climbing) may be needed to reliably detect lichens when they occur at low abundance. © 2017 Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/64382
Appears in Collections: 影响、适应和脆弱性
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作者单位: Department of Environmental Science and Policy, University of California Davis, 1 Shields Avenue, Davis, CA, United States; Siskiyou Biosurvey, LLC, Eagle Point, OR, United States; Six Rivers National Forest, Eureka, CA, United States; Botany Department, Weber State University, Ogden, UT, United States
Recommended Citation:
Miller J.E.D.,Villella J.,Carey G.,et al. Canopy distribution and survey detectability of a rare old-growth forest lichen[J]. Forest Ecology and Management,2017-01-01,392