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- Publications
- Influence
Wasps and bees in southern Africa.
- S. Gess, F. W. Gess
- Biology
- 2014
In this work, the authors have compiled all that is known for southern Africa of the biology of wasps and bees, important pollinators and predators, and have shown how agricultural land use and… Expand
- 26
- 5
Ethological Studies of Jugurtia confusa Richards, Ceramius capicola Brauns, C. linearis Klug and C. lichtensteinii (Klug) (Hymenoptera: Masaridae) in the Eastern Cape Province of South Africa
- F. W. Gess, S. Gess
- Biology
- 1980
- 14
- 4
The use by wasps, bees and spiders of shells of Trigonephrus Pilsb. (Mollusca: Gasteropoda: Dorcasiidae) in desertic winter-rainfall areas in southern Africa
- F. W. Gess, S. Gess
- Biology
- 1 October 1999
Abstract The use of snail shells in desertic areas in the winter-rainfall region of southern Africa was investigated. Principal users are: spiders constructing silk-bag nests; megachilid-bees,… Expand
Ethological Notes on Ceramius bicolor (Thunberg), C. clypeatus Richards, C. nigripennis Saussure and C. socius Turner (Hymenoptera: Masaridae) in the Western Cape Province of South Africa
- F. W. Gess, S. Gess
- Biology
- 1986
- 7
- 3
Effects of increasing land utilization on species representation and diversity of aculeate wasps and bees in the semi-arid areas of southern Africa.
- F. W. Gess, S. Gess, J. Lasalle, I. Gauld
- Biology
- 1993
- 48
- 2
Patterns of usage of snail shells for nesting by wasps (Vespidae : Masarinae and Eurneninae) and bees (Megachilidae : Megachilinae) in southern Africa
- S. Gess, F. W. Gess
- Biology
- 2008
- 14
- 2
Flower Visiting by Masarid Wasps in Southern Africa (Hymenoptera: Vespoidea: Masaridae)
- S. Gess, F. W. Gess
- Biology
- 1989
- 31
- 1
A Comparative Overview of Flower Visiting by Non-Apis Bees in the Semi-arid to Arid Areas of Southern Africa
- S. Gess, F. W. Gess
- Biology
- 1 October 2004
Abstract A comparative overview of flower visiting by non-Apis bees in the semi-arid to arid areas of southern Africa is presented. This is based on a survey of non-Apis bees and aculeate wasps in… Expand
Southern African osmiine bees: taxonomic notes, two new species, a key to Wainia, and biological observations (Hymenoptera: Anthophila: Megachilidae)
- M. Kuhlmann, F. W. Gess, F. Koch, S. Gess
- Biology
- 24 November 2011
Resulting from the examination of the type specimens of the southern African bee species originally described in the genus Osmia, the taxonomic placement of 19 species is formally established. The… Expand
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