气候变化领域集成服务门户(CCPortal): Using lichen communities as indicators of forest stand age and conservation value

CCPortal

DOI	10.1016/j.foreco.2020.118436
	Using lichen communities as indicators of forest stand age and conservation value
	Miller J.E.D.; Villella J.; Stone D.; Hardman A.
发表日期	2020
ISSN	0378-1127
卷号	475
英文摘要	Evaluating the conservation value of ecological communities is critical for forest management but can be challenging because it is difficult to survey all taxonomic groups of conservation concern. Lichens have long been used as indicators of late successional habitats with particularly high conservation value because lichens are ubiquitous, sensitive to fine-scale environmental variation, and some species require old substrates. However, the efficacy of such lichen indicator systems has rarely been tested beyond narrow geographic areas, and their reliability has not been established with well-replicated quantitative research. Here, we develop a continuous lichen conservation index representing epiphytic macrolichen species affinities for late successional forests in the Pacific Northwest, USA. This index classifies species based on expert field experience and is similar to the “coefficient of conservatism” that is widely used for evaluating vascular plant communities in the central and eastern USA. We then use a large forest survey dataset to test whether the community-level lichen conservation index is related to forest stand age. We find that the lichen conservation index has a positive, linear relationship with forest stand age. In contrast, lichen species richness has only a weak, unimodal relationship with forest stand age, and a binary indicator approach (where species are assigned as either old growth forest indicators or not) has a substantially weaker relationship with forest stand age than the continuous lichen conservation index. Our findings highlight that lichen communities can be useful indicators of late successional habitats of conservation concern at a regional scale. Quantitative lichen indicator systems provide unique information about habitat conservation value that is not captured by traditional community metrics such as lichen species richness. More broadly, indicator systems based on expert experience can have strong biological relevance. © 2020
英文关键词	Bioindicators; Conservation; Epiphytes; Floristic quality analysis; Forest Inventory and Analysis; Indicator species; Lichens; Oregon; Washington
语种	英语
scopus关键词	Ecosystems; Forestry; Fungi; Large dataset; Statistical tests; Surveys; Conservation values; Environmental variations; Expert experience; Habitat conservation; Linear relationships; Old-growth forest; Pacific Northwest; Quantitative research; Conservation; conservation status; environmental gradient; forest management; habitat conservation; habitat type; lichen; old-growth forest; plant community; species richness; stand structure; Ecosystems; Forestry; Fungi; Pacific Northwest; Statistical Analysis; Surveys; Pacific Northwest; Tracheophyta
来源期刊	Forest Ecology and Management
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/155030
作者单位	Department of Biology, Stanford University, Palo Alto, CA 94305, United States; Siskiyou Biosurvey, LLC., Eagle Point, OR 97524, United States; Stone Ecosurveys LLC, Eugene, OR 97405, United States; US Forest Service, John Day, OR 97845, United States
推荐引用方式 GB/T 7714	Miller J.E.D.,Villella J.,Stone D.,et al. Using lichen communities as indicators of forest stand age and conservation value[J],2020,475.
APA	Miller J.E.D.,Villella J.,Stone D.,&Hardman A..(2020).Using lichen communities as indicators of forest stand age and conservation value.Forest Ecology and Management,475.
MLA	Miller J.E.D.,et al."Using lichen communities as indicators of forest stand age and conservation value".Forest Ecology and Management 475(2020).