Another new bat record for the Kruger National Park

In aid of a zoogeographical survey of the mammals of Transvaal, Republic of South Africa, the National Parks Board of Trustees kindly allowed the author to study the reference collection of small mammals from the Kruger National Park, during August 1974. This collection at Skukuza formed the basis of a checklist for smaller mammals of the Kruger National Park (Pienaar 1964, 1972).</p

A new technique for the efficient use of Macro-Mistnets

A cheap and simple method of adapting yacht masts to allow quick and efficient stringing and versatile manipulation of a 6,0 x 30,0 metre macro-mistnet, is described

Further records of smaller mammals from the Kalahari Gemsbok National Park

An earlier paper (Rautenbach 1971) summarized documented distributional data on the smaller mammals in the Kalahari Gemsbok National Park, Republic of South Africa. Since then continued field- work in this Park (e.g. Nel and Rautenbach in press) has yielded more information on the distribution of some previously recorded species,whilst other species have been recorded for the first time. Collecting hasbeen concentrated on two localities in the vicinity of Twee Rivieren, two near Nossob Camp, as well as at Dankbaar in the north-central portion of the Park

Mammals of the Kammanassie Mountains, southern Cape Province

The mammal fauna of the Kammanassie Mountain State Forest Reserve and Mountain Catchment Area was censused in the high-rainfall southeastern sector and low-rainfall northwestern sector from 2 -12 February, 1979. Collecting yielded 287 specimens of 17 species of small mammals, while the presence of a further 16 species of larger mammals was confirmed. Mean trapping success was low (2,0%) which reflects the low density of most species. Of the 10 species of small mammals collected in the southeastern sector Acomys subspinosus and Otomys irroratus were abundant, while Rhadomys pumilio, Praomys verreauxi and Myosorex varius were common; the other five species collected were rare. In the northwestern sector the species composition and relative density of each differed. Here Aethomys namaquensis was abundant, R. pumilio common, and five other species (including A. subspinosus and O. irroratus) rare. Few carnivores occur. Stomach samples of collected specimens yielded information on feeding habits; species vary considerably in their diet. Twenty-four species of both large and small mammals occur in the southeastern part, and 25 in the northwestern sector; 17 species are common to both

Multiple births in Schlieffen's bat, Nycticeius schlieffenii (Peters, 1859) (Chiroptera: Vespertilionidae) from the southern African subregion

Nycticeius schlieffenii is a monestrous species that breeds during the spring months in the northern parts of the Kruger National Park. During spring 1983 the average number of corpora lutea in 11 Nycticeius schlieffenii females was 3,1 (range 1 -4), with the average number of fetuses recorded 2,8. In the present study this bat has been found to be a polyovular seasonal breeder, giving birth to as many as three young per estrous cycle

An annotated check list of the land mammal fauna of the West Coast National Park

Some 4 000 Barn Owl pellets with small mammal remains have been collected over a period of nine years from two locations at the south end of the Langebaan lagoon. Two small samples of bones from archaeological sites on the Churchhaven peninsula provide evidence for past mammal occurrences. The remains of small mammals from the owl pellet collections provide an initial list of 18 species that occur within theWest Coast National Park. Subsequent conventional censusing by means of trapping and observational techniques to assess the small and large mammal species diversity of the area were conducted during 1989. This study documents the definite occurrence of 63 mammal species in the park, seven of which are exotics. The presence of a further five species requires confirmation. Interesting insight is gained into how direct censusing and owl pellet analyses augment each other in establishing the presence of small mammal taxa of an area

Karyotypic data and attendant systematic implications for the bats of southern Africa

The standard karyotypic properties of 60 of the 73 species of bats known to occur in southern Africa, are reviewed. The karyotypes of 23 microchiropteran species are described for the first time; our results on a further 14 species are compared with earlier reports for those taxa. The previously published chromosomal information pertaining to 23 species for which we had no information, are cited. Systematic implications of observed patterns of karyotypic variation are briefly discussed. In particular, we conclude that the taxon Cistugo (currently recognised as a subgenus oiMyotis) should be afforded full generic rank; hypothesise that the karyotypes of the two species - M. (C.) seabrai and M. (C.) lesueuri - in Cistugo are probably ancestral for all vespertilionids; and question the wisdom of redefining the taxonomic limits of the genera Eptesicus and Pipistrellus until molecular data are available to resolve the dilemma posed by conflicting morphological and cytogenetic data suites

Fluctuations in Availability of Arthropods Correlated with Microchiropteran and Avian Predator Activities

Aerial arthropods were sampled by driving a standard transect along the riparian forest of the Luvuvhu River, South Africa, to assess hourly and seasonal variations in available biomass. Sampling, with an air-plankton net mounted on a vehicle, was conducted hourly over 48-hour periods during the fullest phase of the moon for each of eight months during 1986/87. Seasonal variation in availability of terrestrial arthropods was assessed by means of six pitfall traps set in the riparian forest. On a daily basis, the available biomass of aerial arthropods was found to increase markedly at and during the two hours following sunset, with a slight peak at or in the two hours preceding dawn. Highest monthly availability was found to correspond with the warm summer rainy season, with a marked increase after the first rains. The peak for terrestrial arthropods was found to occur later in the summer than for aerial arthropods. These patterns of arthropod availability correlate well with the daily activity rhythms and seasonal reproduc- tion of microchiropteran bats and their avian predators