Original Research

Invasive alien woody plants of the eastern Cape

L. Henderson
Bothalia | Vol 22, No 1 | a830 | DOI: https://doi.org/10.4102/abc.v22i1.830 | © 1992 L. Henderson | This work is licensed under CC Attribution 4.0
Submitted: 13 October 1992 | Published: 14 October 1992

About the author(s)

L. Henderson, Plant Protection Research Institute, Dept of Agricultural Development;, South Africa

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Abstract

The frequency and abundance of invasive alien woody plants were recorded along roadsides and at watercourse crossings in 69.9% (151/216) of the quarter degree squares in the study area. The survey yielded 101 species of which the most prominent (in order of prominence) in roadside and veld habitats were:  Opuntia ficus-indica, Acacia meamsii and A. cyclops. The most prominent species (in order of prominence) in streambank habitats were:  A. meamsii, Populus x  canescens, Salix babylonica and  S. fragilis (fide R.D. Meikle).

The greatest intensity of invasion was recorded in the wetter eastern parts and particularly in the vicinity of Port Elizabeth. Uitenhage, East London, Grahamstown, Hogsback and Stutterheim. There was relatively little invasion in the central and western dry interior except along watercourses.


Keywords

alien invasive plants; eastern Cape; Fynbos Biome; Grassland Biome; Nama-Karoo Biome; roadside survey; Savanna Biome

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