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Assessing the ecological integrity of a grassland ecosystem : the applicability and rapidity of the SAGraSS method
Author
Kaiser, W
Avenant, N L
Haddad, C R
Publisher
African Journal of Ecology
Publication Year
2009
Body

The Grassland Biome is currently one of the most threatened biomes in South Africa and is in dire need of a biomonitoring protocol. The components of ecological integrity in these ecosystems are, however, too diverse and time-consuming to measure scrupulously. It is therefore necessary to develop a set of grassland indicators that are efficient and rapid in their assessment of grassland ecosystem integrity. The South African Grassland Scoring System (SAGraSS), based on the grassland insect community, is such a suggested indicator. The present study is the first to investigate the applicability and rapidity of this proposed method. Although SAGraSS scores correlated significantly with Ecological Index values (the most commonly used index by which veld condition is evaluated in central South Africa), the method proved to be tedious and the identification of insects taxing. We offer a number of changes to make the SAGraSS method a more rapid method of assessment.

Language
English
Resource Type
Text
Document Type
Journal Issue/Article
Journal Volume
47
Journal Number
3
Journal Pages
308-317
Collection
Southern Africa Collection
Journal Name
African Journal of Ecology
Keywords
Ecological Index value
ecological integrity
functional feeding groups
insects
SAGraSS method
grasslands
monitoring
rangeland condition
South Africa