Ant composition and activity patterns as determined by pitfall trapping and other methods in three habitats in the semi-arid Karoo

The diversity and abundance of epigaeic ant species were determined across three habitats (riverine areas, gently sloping grassland areas and steep slope areas) in summer (November–December) and winter (May–June) of 1998 at Tussen die Riviere Nature Reserve in the Karoo, to determine temporal and sp...

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Vydané v:	Journal of arid environments Ročník 48; číslo 4; s. 551 - 568
Hlavní autori:	Lindsey, P.A., Skinner, J.D.
Médium:	Journal Article
Jazyk:	English
Vydavateľské údaje:	Kidlington Elsevier Ltd 01.08.2001 Elsevier
Predmet:	abundance Animal and plant ecology Animal, plant and microbial ecology Animals Autoecology Biological and medical sciences dig samples diversity epigaeic ants Formicidae Fundamental and applied biological sciences. Psychology habitat habitats Karoo pitfall trap Protozoa. Invertebrata quadrats rivers season seasonal variation semiarid zones South Africa spatial variation species diversity South Africa(Republic) Africa South Africa dig samples Karoo epigaeic ants diversity habitat abundance season pitfall trap quadrats Grassland Formicidae Spatial variability Fauna Insecta Biodiversity Formicoidea Trapping Semi arid zone Seasonal variation Arthropoda Land slope Habitat Hymenoptera Invertebrata Sampling Food supply Comparative study Aculeata Ecological abundance
ISSN:	0140-1963, 1095-922X
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Shrnutí:	The diversity and abundance of epigaeic ant species were determined across three habitats (riverine areas, gently sloping grassland areas and steep slope areas) in summer (November–December) and winter (May–June) of 1998 at Tussen die Riviere Nature Reserve in the Karoo, to determine temporal and spatial variations in the availability of potential prey species of the aardvark (Orycteropus afer). Pitfall trapping, dig sampling and quadrat sampling were used to ensure as complete a sampling effort as possible. Forty-five ant species of five sub-families and 17 genera were recorded. The grassland habitat yielded the highest abundance and diversity, followed by the steep slope and riverine areas. Ant abundance and diversity were higher during summer than winter in all three habitats. Anoplolepis custodiens was the most abundant species in summer, whilst Monomorium albopilosum was the most abundant species in winter. Pitfall trapping was responsible for recording more species than dig sampling or quadrat sampling. No method recorded all of the species present.
Bibliografia:	ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23 ObjectType-Article-1 ObjectType-Feature-2
ISSN:	0140-1963 1095-922X
DOI:	10.1006/jare.2000.0764