DOI: 10.1016/j.foreco.2013.02.017
Scopus记录号: 2-s2.0-84878162715
论文题名: Patterns and consequences of ungulate herbivory on aspen in western North America
作者: Seager S.T. ; Eisenberg C. ; St. Clair S.B.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2013
卷: 299 起始页码: 81
结束页码: 90
语种: 英语
英文关键词: Aspen ecosystems
; Elk and deer densities
; Environmental modifications
; Populus tremuloides
; Ungulate herbivory
Scopus关键词: Bottom-up and top-down
; Community structures
; Environmental modifications
; Herbivory
; Management strategies
; Multi-faceted approach
; Multi-story structures
; Populus tremuloides
; Agriculture
; Animals
; Plants (botany)
; Reforestation
; Ecosystems
; community structure
; deciduous tree
; ecosystem resilience
; food web
; genetic differentiation
; herbivory
; plant community
; plant-herbivore interaction
; population density
; recruitment (population dynamics)
; regeneration
; species diversity
; survival
; ungulate
; wild population
; Agriculture
; Animals
; Ecosystems
; Plants
; Populus Tremuloides
; Reforestation
; North America
; Cervidae
; Cervus elaphus
; Odocoileus
; Populus
; Populus tremuloides
; Ungulata
英文摘要: Quaking aspen (Populus tremuloides) forests develop complex, multi-story structure and speciose plant communities, which provide habitat for ungulates and diverse wildlife species. Successfully recruiting aspen sprouts and seedlings provide important sources of structural, functional and genetic diversity vital to resilient aspen forests. Chronic ungulate browsing of regenerating aspen can degrade aspen community structure and diversity. This simplifies food webs and can have negative implications for ecosystem resilience. This paper explores how patterns of ungulate herbivory in aspen forests are influenced by and affect bottom-up and top-down forces in aspen ecosystems. We outline management strategies aimed at decreasing ungulate and livestock impacts on aspen and increasing sprout survival and recruitment. The body of aspen research indicates that herbivory is more heterogeneous in areas that contain human hunters, predators, or fire on the landscape. The complexities of ungulate herbivory and fire on aspen ecosystems, especially in relation to scale, are imperfectly understood. Wildlife agencies responsible for elk (Cervus elaphus) and deer (Odocoileus spp.) populations should consider management strategies that use ungulate herbivory impacts on ecosystems such as aspen as indicators of sustainable herd densities. To increase aspen resilience in the face of current and future environmental change, we recommend a multi-faceted approach that involves enhancing bottom-up forces while decreasing top-down impacts from ungulates. © 2013 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/66616
Appears in Collections: 影响、适应和脆弱性
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作者单位: Department of Forest Ecosystems and Society, Oregon State University, Corvallis, OR, United States; Department of Plant and Wildlife Sciences, Brigham Young University, Provo, UT, United States
Recommended Citation:
Seager S.T.,Eisenberg C.,St. Clair S.B.. Patterns and consequences of ungulate herbivory on aspen in western North America[J]. Forest Ecology and Management,2013-01-01,299