An inventory of epigeal ants of the western Soutpansberg Mountain Range, South Africa

Koedoe - African Protected Area Conservation and Science

 
 
Field Value
 
Title An inventory of epigeal ants of the western Soutpansberg Mountain Range, South Africa
 
Creator Munyai, Thinandavha C. Foord, Stefan H.
 
Subject Conservation, Myrmecology, Formicidae; elevation; centre of endemism; biological indicators; long-term; monitoring
Description The distribution, abundance and sensitivity invertebrates to habitat change are largely unknown. Long-term monitoring of ecological gradients with standardised and comparable protocols can form the basis of a better understanding. Altitudinal gradients are particularly relevant within this context. Here we provide a check list and baseline data for ant species collected over a 5-year period across the Soutpansberg Mountain Range, South Africa. Standardised pitfall surveys across 11 sites yielded a total of 133 species in 38 genera and 6 subfamilies. Sample coverage of epigeal ants was 0.98 for the transect as a whole. Of these species, 21% were restricted to the southern slope of the mountain and 14% to the northern slope. Extrapolated richness estimates reached an asymptote for all, except for three sites. These were the only sites impacted by bush encroachment. Observed richness was the highest at a low-altitude mesic site that is exposed to considerable disturbance by megaherbivores and mechanical clearing of woody vegetation. Structural classification of vegetation was predictive of a broad-scale ant assemblage structure. On a smaller scale, however, structure was a function of elevation, space and temperature.Conservation implications: Future monitoring should target indicator taxa associated with bush encroachment, particularly with reference to their impacts on grasslands. Bush encroachment could endanger several ant species associated with mesic grasslands and woodlands on the mountain, as well as ant diversity, as these were the habitats with the highest ant diversity.
 
Publisher AOSIS Publishing
 
Contributor DST-NRF Centre of Excellence, Centre for Invasion Biology, Stellenbosch University
Date 2015-03-30
 
Type info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion — —
Format text/html application/octet-stream text/xml application/pdf
Identifier 10.4102/koedoe.v57i1.1244
 
Source Koedoe; Vol 57, No 1 (2015); 12 pages 2071-0771 0075-6458
 
Language eng
 
Relation
The following web links (URLs) may trigger a file download or direct you to an alternative webpage to gain access to a publication file format of the published article:

https://koedoe.co.za/index.php/koedoe/article/view/1244/1741 https://koedoe.co.za/index.php/koedoe/article/view/1244/1743 https://koedoe.co.za/index.php/koedoe/article/view/1244/1742 https://koedoe.co.za/index.php/koedoe/article/view/1244/1736
 
Coverage Tropical Africa, Biosphere Reserve, Nature Reserve — —
Rights Copyright (c) 2015 Thinandavha C. Munyai, Stefan H. Foord https://creativecommons.org/licenses/by/4.0
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