DOI: 10.1016/j.quascirev.2016.05.037
Scopus记录号: 2-s2.0-84976393677
论文题名: Oaks were the historical foundation genus of the east-central United States
作者: Hanberry B.B. ; Nowacki G.J.
刊名: Quaternary Science Reviews
ISSN: 2773791
出版年: 2016
卷: 145 起始页码: 94
结束页码: 103
语种: 英语
英文关键词: American chestnut
; Eastern deciduous forest
; Hickories
; Mesophication
; Pines
; Quercus
Scopus关键词: Ecology
; Ecosystems
; Fruits
; American chestnut
; Deciduous forest
; Hickories
; Mesophication
; Pines
; Quercus
; Forestry
; abundance
; coniferous tree
; database
; deciduous forest
; deciduous tree
; dominance
; geographical distribution
; historical record
; species richness
; United States
; Carya
; Castanea dentata
; Quercus
; Rosa roxburghii
英文摘要: Foundation tree species are dominant and define ecosystems. Because of the historical importance of oaks (Quercus) in east-central United States, it was unlikely that oak associates, such as pines (Pinus), hickories (Carya) and chestnut (Castanea), rose to this status. We used 46 historical tree studies or databases (ca. 1620-1900) covering 28 states, 1.7 million trees, and 50% of the area of the eastern United States to examine importance of oaks compared to pines, hickories, and chestnuts. Oak was the most abundant genus, ranging from 40% to 70% of total tree composition at the ecological province scale and generally increasing in dominance from east to west across this area. Pines, hickories, and chestnuts were co-dominant (ratio of oak composition to other genera of <2) in no more than five of 70 ecological subsections and two of 20 ecological sections in east-central United States, and thus by definition, were not foundational. Although other genera may be called foundational because of localized abundance or perceptions resulting from inherited viewpoints, they decline from consideration when compared to overwhelming oak abundance across this spatial extent. The open structure and high-light conditions of oak ecosystems uniquely supported species-rich understories. Loss of oak as a foundation genus has occurred with loss of open forest ecosystems at landscape scales. © 2016 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/59542
Appears in Collections: 过去全球变化的重建
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作者单位: University of Missouri, 203 Natural Resources Building, Columbia, MO, United States; USDA Forest Service, Eastern Regional Office, 626 E. Wisconsin Avenue, Milwaukee, WI, United States
Recommended Citation:
Hanberry B.B.,Nowacki G.J.. Oaks were the historical foundation genus of the east-central United States[J]. Quaternary Science Reviews,2016-01-01,145