Full TGIF Record # 70334
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Web URL(s):http://www.jstor.org/stable/pdf/2648336.pdf
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Publication Type:
i
Refereed
Author(s):Wilson, J. Bastow; Steel, John B.; Dodd, Mike E.; Anderson, Barbara J.; Ullmann, Isolde; Bannister, Peter
Author Affiliation:Wilson, Steel, Anderson, and Bannister: Botany Department, University of Otago, Dunedin, New Zealand; Dodd: Biology Department, Open University, Milton Keynes, United Kingdom; and Ullmann: Lehrstuhl für Botanik II, Universität Würzburg, Würzburg, Germany
Title:A test of community reassembly using the exotic communities of New Zealand roadsides in comparison to British roadsides
Source:Journal of Ecology. Vol. 88, No. 5, October 2000, p. 757-764.
Publishing Information:Blackwell Scientific Publications
# of Pages:8
Keywords:TIC Keywords: Roadside turf; Comparisons; Regional variation; Plant communities; Botanical composition; Population dynamics; Diversity; Biodiversity; Climatic factors; Environmental factors; Site factors; Plant community analysis; Plant succession; Models
Geographic Terms:New Zealand; Britain
Abstract/Contents:"Competing theories of community assembly are difficult to test. Four main theories exist. The Stochastic theory sees species assembly as being random. The Humpty Dumpty/Alternative Stable States (ASS) theory suggests that a community may be unable to reassemble itself from its constituent species. The Deterministic theory suggests there will be convergence to one stable state. The Pre-adaptation theory is similar to the Deterministic theory but emphasizes that many species fit the stable state because of characters acquired elsewhere. The reassembly of flora into new communities in a different country, or its assimilation as a major component of such communities, offers a means to test these theories. The invasion of British plant species into New Zealand, and their reassembly into the roadside communities there, is a good example of such a natural experiment. Plant communities of NZ roadsides were compared to the communities of the British National Vegetation Classification (NVC). British roadside communities were also compared to the NVC as a control. New Zealand roadside communities provided a fit to the NVC communities of only 54.7% on average. After excluding species that are not present in NZ, and therefore could not possibly reassemble, the fit increased to 61.1%. British roadsides gave a 65.8% fit. The NZ figures are similar to the fit obtained with random data (58.7%), indicating that the NZ communities bear little relation to the ones formed by the same species in Britain. Similarity between roadside communities in NZ and Britain was low, forming two distinct sets of communities. Some of the predictions of the Stochastic, Humpty Dumpty/ASS and Deterministic models are borne out, but others are not. It is concluded that British species have reassembled into communities in NZ most of which are new, i.e. distinct from those that occur in the native range of the species in Britain. The evidence points to a process of community assembly by pre-adaptation.
Language:English
References:36
Note:Figures
Tables
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Wilson, J. B., J. B. Steel, M. E. Dodd, B. J. Anderson, I. Ullmann, and P. Bannister. 2000. A test of community reassembly using the exotic communities of New Zealand roadsides in comparison to British roadsides. J. Ecol. 88(5):p. 757-764.
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http://www.jstor.org/stable/pdf/2648336.pdf
    Last checked: 10/06/2015
    Requires: PDF Reader
    Access conditions: Item is within a limited-access website
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