气候变化领域集成服务门户(CCPortal): Influence of eastern spruce dwarf mistletoe on stand structure and composition in northern Minnesota

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DOI	10.1016/j.foreco.2020.118712
	Influence of eastern spruce dwarf mistletoe on stand structure and composition in northern Minnesota
	Skay R.; Windmuller-Campione M.A.; Russell M.B.; Reuling L.F.
发表日期	2021
ISSN	0378-1127
卷号	481
英文摘要	Black spruce (Picea mariana (Mill.) Britton, Sterns & Poggenb.) is one of the most common tree species in the boreal forest. However, there is limited information on one of the major disturbance agents, eastern spruce dwarf mistletoe (Arceuthobium pusillum Peck; EDM) a native, parasitic plant that influences stand development especially at the southwestern range limit of black spruce in Minnesota. The goal of our study was to quantify overstory and understory (sapling and seedling) structure and composition in productive black spruce stands across three EDM severity categories: uninfected (0% EDM), low (<50% of stand infected with EDM), and high (>50% of stand infected with EDM) across northern Minnesota during the summer of 2017. The presence of EDM infection in stands shifted species composition and structure compared to uninfected stands. Uninfected stands were dominated by black spruce in both overstory and understory and on average had a uni-modal diameter distribution. Both low and high EDM severity stands had significantly greater overstory species richness, Shannon's diversity index, and Shannon's Evenness compared to uninfected stands. However, stands with high EDM infections had the most black spruce infected with EDM in both the overstory and sapling layer, which will likely kill the infected trees within seventeen years and may result in a shifting in forest composition or a transition to non-forested conditions. The presence and severity of EDM influences stand structure and composition and subsequently stand development. Depending on the goals and objectives and ultimate desired future conditions both at the stand and the broader landscape level, natural resource managers may choose more or less intensive management of EDM. © 2020 Elsevier B.V.
英文关键词	Ecological forestry; Intermediate disturbance hypothesis; Regeneration; Species diversity; Triad management
语种	英语
scopus关键词	Forestry; Plants (botany); Diameter distributions; Forest compositions; Intensive management; Limited information; Parasitic plants; Resource managers; Species composition and structures; Stand development; Structure (composition); Arceuthobium pusillum; Picea mariana
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/154796
作者单位	Department of Forest Resources, University of Minnesota, 1530 Cleveland Ave. N., St. Paul, MN 55108, United States
推荐引用方式 GB/T 7714	Skay R.,Windmuller-Campione M.A.,Russell M.B.,et al. Influence of eastern spruce dwarf mistletoe on stand structure and composition in northern Minnesota[J],2021,481.
APA	Skay R.,Windmuller-Campione M.A.,Russell M.B.,&Reuling L.F..(2021).Influence of eastern spruce dwarf mistletoe on stand structure and composition in northern Minnesota.Forest Ecology and Management,481.
MLA	Skay R.,et al."Influence of eastern spruce dwarf mistletoe on stand structure and composition in northern Minnesota".Forest Ecology and Management 481(2021).