D. Ollis

Preliminary testing of the Integrated Habitat Assessment System (IHAS) for aquatic macroinvertebrates

K. Esler, H. Dallas, C. Boucher, 2006 .

South African Wetlands: Classification of Ecosystem Types

D. Ollis, J. Day, J. Dini, 2016 .

The development of a classification system for inland aquatic ecosystems in South Africa

J. Day, D. Ollis, J. Day, 2015 .

Bioassessment of the ecological integrity of river ecosystems using aquatic macroinvertebrates: an overview with a focus on South Africa

Karen J. Esler, K. Esler, H. Dallas, 2006 .

RAPID BIOASSESSMENT OF THE ECOLOGICAL INTEGRITY OF THE LOURENS, PALMIET AND HOUT BAY RIVERS (SOUTH WESTERN CAPE, SOUTH AFRICA) USING AQUATIC MACROINVERTEBRATES

D. Ollis, 2005 .

Ecosystem guidelines for environmental assessment in the Western Cape

P. Holmes, C. Villiers, W. Dean, 2016 .