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DOI	10.1016/j.biocon.2024.110598
	Disturbance and diversity: Lichen species richness decreases with increasing anthropogenic disturbance
	Boggess, Laura M.; McCain, Christy M.; Manzitto-Tripp, Erin A.; Pearson, Scott M.; Lendemer, James C.
发表日期	2024
ISSN	0006-3207
EISSN	1873-2917
起始页码	293
卷号	293
英文摘要	Anthropogenic disturbance is rapidly increasing through habitat degradation, development, and deforestation. Gaps remain in understanding the effects of this disturbance on diverse and ecologically important organisms such as lichens. In North America, studies have focused on epiphytic macrolichens and catastrophic disturbance, largely ignoring microlichens and less severe disturbances. The Intermediate Disturbance Hypothesis predicts these moderate disturbances will lead to higher species richness. Here we examine the effects of anthropogenic disturbance in the form of land management on overall lichen richness, including microlichens, and on the species richness of eight lichen functional groups. The study draws on a comprehensive data set of 872 species, in 208 one-hectare plots throughout the Southern Appalachian Mountains, a global biodiversity hotspot in eastern North America. A habitat quality index based on an established forestry metric was used as a proxy for anthropogenic disturbance and was quantified using a 10 -part score including categories such as percent native tree canopy cover and degree of fragmentation. Linear models were used to compare habitat quality scores to overall species richness and to species richness of functional groups. Rather than following the Intermediate Disturbance Hypothesis, all groups uniformly follow a negative linear relationship: as disturbance increases, species richness decreases. This pattern held even for widely variable functional groups such as morphotype. Effective conservation of lichen richness should prioritize the maintenance of existing older, less-disturbed stands within large, contiguously forested areas.
英文关键词	Biodiversity; Intermediate disturbance hypothesis (IDH); Forest management; Land-use change; Lichen community ecology; Old-growth forest
语种	英语
WOS研究方向	Biodiversity & Conservation ; Environmental Sciences & Ecology
WOS类目	Biodiversity Conservation ; Ecology ; Environmental Sciences
WOS记录号	WOS:001232055300001
来源期刊	BIOLOGICAL CONSERVATION
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/300073
作者单位	City University of New York (CUNY) System; University of Colorado System; University of Colorado Boulder; United States Department of Energy (DOE); Oak Ridge National Laboratory
推荐引用方式 GB/T 7714	Boggess, Laura M.,McCain, Christy M.,Manzitto-Tripp, Erin A.,et al. Disturbance and diversity: Lichen species richness decreases with increasing anthropogenic disturbance[J],2024,293.
APA	Boggess, Laura M.,McCain, Christy M.,Manzitto-Tripp, Erin A.,Pearson, Scott M.,&Lendemer, James C..(2024).Disturbance and diversity: Lichen species richness decreases with increasing anthropogenic disturbance.BIOLOGICAL CONSERVATION,293.
MLA	Boggess, Laura M.,et al."Disturbance and diversity: Lichen species richness decreases with increasing anthropogenic disturbance".BIOLOGICAL CONSERVATION 293(2024).