globalchange  > 影响、适应和脆弱性
DOI: 10.1111/gcb.12370
论文题名:
Predicting invasion in grassland ecosystems: Is exotic dominance the real embarrassment of richness?
作者: Seabloom E.W.; Borer E.T.; Buckley Y.; Cleland E.E.; Davies K.; Firn J.; Harpole W.S.; Hautier Y.; Lind E.; Macdougall A.; Orrock J.L.; Prober S.M.; Adler P.; Alberti J.; Michael Anderson T.; Bakker J.D.; Biederman L.A.; Blumenthal D.; Brown C.S.; Brudvig L.A.; Caldeira M.; Chu C.; Crawley M.J.; Daleo P.; Damschen E.I.; D'Antonio C.M.; Decrappeo N.M.; Dickman C.R.; Du G.; Fay P.A.; Frater P.; Gruner D.S.; Hagenah N.; Hector A.; Helm A.; Hillebrand H.; Hofmockel K.S.; Humphries H.C.; Iribarne O.; Jin V.L.; Kay A.; Kirkman K.P.; Klein J.A.; Knops J.M.H.; La Pierre K.J.; Ladwig L.M.; Lambrinos J.G.; Leakey A.D.B.; Li Q.; Li W.; Mcculley R.; Melbourne B.; Mitchell C.E.; Moore J.L.; Morgan J.; Mortensen B.; O'Halloran L.R.; Pärtel M.; Pascual J.; Pyke D.A.; Risch A.C.; Salguero-Gómez R.; Sankaran M.; Schuetz M.; Simonsen A.; Smith M.; Stevens C.; Sullivan L.; Wardle G.M.; Wolkovich E.M.; Wragg P.D.; Wright J.; Yang L.
刊名: Global Change Biology
ISSN: 13541013
出版年: 2013
卷: 19, 期:12
起始页码: 3677
结束页码: 3687
语种: 英语
Scopus关键词: climate effect ; grassland ; invasive species ; native species ; pristine environment ; relative abundance ; saltmarsh ; species diversity ; species richness ; tundra ; Poaceae ; article ; biodiversity ; ecosystem ; introduced species ; physiology ; plant dispersal ; Poaceae ; Biodiversity ; Ecosystem ; Introduced Species ; Plant Dispersal ; Poaceae
英文摘要: Invasions have increased the size of regional species pools, but are typically assumed to reduce native diversity. However, global-scale tests of this assumption have been elusive because of the focus on exotic species richness, rather than relative abundance. This is problematic because low invader richness can indicate invasion resistance by the native community or, alternatively, dominance by a single exotic species. Here, we used a globally replicated study to quantify relationships between exotic richness and abundance in grass-dominated ecosystems in 13 countries on six continents, ranging from salt marshes to alpine tundra. We tested effects of human land use, native community diversity, herbivore pressure, and nutrient limitation on exotic plant dominance. Despite its widespread use, exotic richness was a poor proxy for exotic dominance at low exotic richness, because sites that contained few exotic species ranged from relatively pristine (low exotic richness and cover) to almost completely exotic-dominated ones (low exotic richness but high exotic cover). Both exotic cover and richness were predicted by native plant diversity (native grass richness) and land use (distance to cultivation). Although climate was important for predicting both exotic cover and richness, climatic factors predicting cover (precipitation variability) differed from those predicting richness (maximum temperature and mean temperature in the wettest quarter). Herbivory and nutrient limitation did not predict exotic richness or cover. Exotic dominance was greatest in areas with low native grass richness at the site- or regional-scale. Although this could reflect native grass displacement, a lack of biotic resistance is a more likely explanation, given that grasses comprise the most aggressive invaders. These findings underscore the need to move beyond richness as a surrogate for the extent of invasion, because this metric confounds monodominance with invasion resistance. Monitoring species' relative abundance will more rapidly advance our understanding of invasions. © 2013 John Wiley & Sons Ltd.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/62276
Appears in Collections:影响、适应和脆弱性

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作者单位: Department of Ecology, Evolution, and Behavior, University of MN, St. Paul, MN, 55108, United States; ARC Centre of Excellence for Environmental Decisions, School of Biological Sciences, The University of Queensland, Brisbane, QLD, 4072, Australia; Ecology, Behavior and Evolution Section, University of California, San Diego, La Jolla, CA, 92093, United States; Department of Ecology and Evolutionary Biology, University of Colorado, Boulder, CO, 80309, United States; Queensland University of Technology, Biogeosciences, Brisbane, QLD, 4000, Australia; Department of Ecology, Evolution, and Organismal Biology, Iowa State University, Ames, IA, 50011, United States; Institute of Evolutionary Biology and Environmental Studies, University of Zurich, Winterthurerstrasse 190, CH-8057, Switzerland; Department of Integrative Biology, University of Guelph, Guelph, ON, N1G 2W1, Canada; Department of Zoology, University of Wisconsin, Madison, WI, 53706, United States; CSIRO Ecosystem Sciences, Private Bag 5, Wembley, WA, 6913, Australia; Department of Wildland Resources and the Ecology Center, Utah State University, Logan, UT, 84322, United States; Instituto de Investigaciones Marinas y Costeras (UNMdP-CONICET), Mar del Plata, Argentina; Department of Biology, Wake Forest University, Winston-Salem, NC, 27109, United States; School of Environmental and Forest Sciences, University of Washington, Seattle, WA, 98195-4115, United States; Rangeland Resources Research Unit, USDA Agricultural Research Service, Fort Collins, CO, 80526, United States; Department of Bioagricultural Sciences and Pest Management, Colorado State University, Fort Collins, CO, 80523, United States; Department of Plant Biology, Michigan State University, East Lansing, MI, 48824, United States; Centro de Estudos Florestais, Instituto Superior de Agronomia, Technical University of Lisbon, Lisbon, Portugal; School of Life Sciences, Lanzhou University, Lanzhou, 730000, China; Department of Biology, Imperial College London, Silwood Park, Ascot, SL5 7PY, United Kingdom; Department of Ecology, Evolution and Marine Biology, University of California, Santa Barbara, CA, 93106, United States; U.S. Geological Survey Forest and Rangeland Ecosystem Science Center, Corvallis, OR, 97331, United States; Desert Ecology Research Group, School of Biological Sciences, University of Sydney, Sydney, NSW, 2006, Australia; USDA-ARS Grassland Soil and Water Research Lab, Temple, TX, 76502, United States; Department of Entomology, University of Maryland, College Park, MD, 20742, United States; School of Life Sciences, University of KwaZulu-Natal, Scottsville, Pietermaritzburg, 3209, South Africa; Department of Ecology, Evolutionary Biology, Yale University, New Haven, CT, 06520, United States; Institute of Ecology and Earth Sciences, University of Tartu, Tartu, Estonia; Institute for Chemistry and Biology of the Marine Environment, Carl-von-Ossietzky University, Wilhelmshaven, Germany; INSTAAR, University of Colorado, Boulder, CO, 80309-0450, United States; USDA-ARS Agroecosystem Management Research Unit, Lincoln, NE, 68583, United States; Biology Department, University of St. Thomas, Saint Paul, MN, 55105, United States; Department Forest, Rangeland and Watershed Stewardship, Colorado State University, Fort Collins, CO, 80523-1472, United States; School of Biological Sciences, University of Nebraska, Lincoln, NE, 68588, United States; Department of Biology, University of New Mexico, Albuquerque, NM, 87103, United States; Department of Horticulture, Oregon State University, Corvallis, OR, 97331, United States; Department of Plant Biology and Institute for Genomic Biology, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, United States; Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, 810008, China; Yunnan Academy of Biodiversity, Southwest Forestry University, Kunming, 650224, China; Department of Plant and Soil Sciences, University of Kentucky, Lexington, KY, 40546, United States; Department of Biology, University of North Carolina, Chapel Hill, NC, 27599, United States; Australian Research Centre for Urban Ecology, Melbourne, c/o School of Botany, University of Melbourne, Melbourne, VIC, 3010, Australia; Department of Botany, La Trobe University, Bundoora, 3086, Australia; Department of Zoology, Oregon State University, Corvallis, OR, 97331, United States; Swiss Federal Institute for Forest, Snow and Landscape Research, Birmensdorf, 8903, Switzerland; National Centre for Biological Sciences, GKVK Campus, Bellary Road, Bangalore, 560065, India; Department of Ecology and Evolutionary Biology, University of Toronto, Toronto, ON, M5S 3B2, Canada; Department of Biology, Colorado State University, Fort Collins, CO, 80523, United States; Lancaster Environment Center, Lancaster University, Lancaster, LA1 4YQ, United Kingdom; Biodiversity Research Centre, University of British Columbia, Vancouver, V6T 1Z4, Canada; Department of Biology, Duke University, Durham, NC, 27708, United States; Department of Entomology, University of California, Davis, CA, 95616, United States

Recommended Citation:
Seabloom E.W.,Borer E.T.,Buckley Y.,et al. Predicting invasion in grassland ecosystems: Is exotic dominance the real embarrassment of richness?[J]. Global Change Biology,2013-01-01,19(12)
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