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Leistner, O.A. (1996) The subcanopy flora in the dynamics of the Kalahari Thornveld. In: van der Maesen, L.J.G., van der Burgt, X.M. and van Medenbach de Rooy, J.M., Eds., The Biodiversity of African Plants (Proceedings XIVth AEFTAT Congress), Kluwer Academic Publishers, Dordrecht, 163-179.

has been cited by the following article:

• TITLE: Subcanopy genetics —The relationship between canopy tree size and genetic variation of the savanna species Pollichia campestris Aiton (Illecebraceae)

  AUTHORS: Josef Simmel, Peter Poschlod, Christoph Reisch

  KEYWORDS: Acacia; AFLP; Directed Dispersal; Frugivore; Kalahari; Nurse Tree

  JOURNAL NAME: Open Journal of Ecology, Vol.4 No.2, February 20, 2014

  ABSTRACT: In savanna vegetation, trees and their canopies provide an important, but scattered habitat. Seeds of plants growing under these nurse trees often are dispersed by animals, especially birds. In the present study, we investigated the influence of tree size and frugivore dispersal on the genetic variation of the subcanopy species Pollichia campestris, using amplified fragment length polymorphisms (AFLP). Considering the individuals under each nurse tree as subpopulations, we found the genetic variation within subpopulations to be positively correlated with the size of the respective canopy tree. Genetic variation was very low among, but high within subpopulations (ΦPT = 0.026, P = 0.18). We conclude that the low genetic variation among subpopulations is due to effective and directed dispersal (dispersal from one canopy to another) by legitimate and frugivorous dispersal agents.