Habitat diversity determines ghyll woodland species diversity. Adding complexity to the species area relationship, a new predictive model?

Waite, S., Burnside, N.G. and Flint, A.R. (2010) Habitat diversity determines ghyll woodland species diversity. Adding complexity to the species area relationship, a new predictive model? In: Eycott, A., Scott, D. and Smithers, R.J., eds. Future Landscape Ecology. International Association of Landscape Ecology UK. ISBN 0954713052

[img] Text
IALE10.pdf - Published Version
Restricted to Registered users only

Download (177kB)

Abstract

Ghylls are linear valley features cut into the sandstone beds of the Weald of south-eastern England. The indigenous ghyll woodlands are highly species rich, supporting distinctive assemblages of cryptogamic plants. We assessed the ability of the species-area relationship, the Choros model and a modified version of the Choros model to describe variations in higher plant diversity. Principal component analysis (PCA) was used to produce proxy environmental variables, multi-regression analysis of which allowed factors determining diversity to be investigated. Field layer diversity varied substantially between ghylls. The data did not fit the species area relationship. A statistically weak fit was provided by the standard Choros model. The modified Choros model, incorporating a PCA generated proxy variable for habitat diversity, provided a good fit. The results suggest that ghyll field layer diversity is primarily determined by habitat diversity and to a lesser extent by ghyll isolation, length and area.

Item Type: Chapter in book
Uncontrolled Keywords: Ghyll woodlands; Species area relationship; Choros model
Subjects: F000 Physical Sciences > F800 Physical Geography and Environmental Sciences > F890 Geographical and Environmental Sciences not elsewhere classified
F000 Physical Sciences > F800 Physical Geography and Environmental Sciences
C000 Biological and Biomedical Sciences > C100 Biology
Faculties: Faculty of Science and Engineering > School of Environment and Technology > Ecology, Landscape and Pollution Management
Faculty of Science and Engineering > School of Environment and Technology
Depositing User: editor environment
Date Deposited: 12 Jan 2011 09:26
Last Modified: 21 May 2014 11:01
URI: http://eprints.brighton.ac.uk/id/eprint/8051

Actions (login required)

View Item View Item

Downloads

Downloads per month over past year