Facilitation and Succession under the Canopy of a Leguminous Shrub, Retama sphaerocarpa, in a Semi-Arid Environment in South-East Spain

F. I. Pugnaire, P. Haase, , M. Cueto, S. C. Clark, L. D. Incoll, Facilitation and Succession under the Canopy of a Leguminous Shrub, Retama sphaerocarpa, in a Semi-Arid Environment in South-East Spain, Oikos, Vol. 76, No. 3 (Sep., 1996), pp. 455-464