Patterns of plant species richness in relation to different environments: An appraisal

Journal of Vegetation Science - Tập 12 Số 2 - Trang 153-166 - 2001
Juli G. Pausas1, M. P. Austin2
1Centro de Estudios Ambientales del Mediterráneo (CEAM), Parc Tecnològic, Paterna, E‐46980 València, Spain
2CSIRO Wildlife and Ecology, GPO Box 284, Canberra, ACT 2601, Australia; E-mail [email protected]

Tóm tắt

Abstract. We review patterns of plant species richness with respect to variables related to resource availability and variables that have direct physiological impact on plant growth or resource availability. This review suggests that there are a variety of patterns of species richness along environmental gradients reported in the literature. However, part of this diversity may be explained by the different types and lengths of gradients studied, and by the limited analysis applied to the data. To advance in understanding species richness patterns along environmental gradients, we emphasise the importance of: (1) using variables that are related to the growth of plants (latitudinal and altitudinal gradients have no direct process impact on plant growth); (2) using multivariate gradients, not single variables; (3) comparing patterns for different life forms; and (4) testing for different shapes in the species richness response (not only linear) and for interaction between variables.

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Thông tin xuất bản

Journal of Vegetation Science

Tập 12 Số 2

153-166

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