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This paper is a comprehensive report on the genera and species of Echiura previously recorded from southern Africa south of 23°30′ S. The echiuran fauna of this region currently comprises five genera and 22 species belonging to the single family Echiuridae. Three new species and six new records have been reported from the southern African region. The species of echiurans currently known from southern Africa have been reported from the east and south coasts and a very small part of the west coast extending northwards from Cape Town to Langebaan Lagoon. No records are as yet available from the coast of Namibia. Listriolobus capensis appears to be an endemic species, because it has not been recorded beyond the limits of southern Africa. Four species require additional investigation owing to their cosmopolitan status. A checklist of all the genera and species of echiurans recorded from southern Africa and a map showing their distribution along the coastline are given. A key for the identification of all the genera and species is provided. The museum accession numbers of all the species recorded from southern Africa are given.
To facilitate development of tailored management strategies for bait species within Knysna Estuary (South Africa), demand for bait, harvesting activity and perceptions around conservation among recreational and subsistence bait fishers were investigated. In 2015 and 2016, bait collectors were interviewed (n = 84) and observed (n = 167) during low tides at six sites during peak and off-peak holiday periods. Significant associations among subsistence and recreational fishers and their favoured bait species, collecting spots and method, frequency of collection, views on regulations and desired daily limit for mudprawns suggest differences that may warrant different management strategies. Furthermore, observed methods and duration of bait collecting differed according to site, suggesting spatial variation in baiting pressures. Subsistence fishers potentially collect more mudprawns more frequently than do recreational fishers and consequently have a greater impact on mudprawn populations. By contrast, recreational fishers collect more polychaete worms, but because they are mainly active during holidays, their impact on these species may be localised and not yet critical. Most subsistence fishers would like increased daily bag limits, to sell bait and would welcome a rotational zonation scheme to replace the current permanent exclusion zone. The merits and disadvantages of these management options and suggestions are discussed.
Until recently, very little was known of the biology and ecology of the woodland dormouse Graphiurus murinus, a nocturnal and arboreal rodent belonging to the family Gliridae. Here, we aimed to increase our knowledge on its population biology in a riverine Combretum forest of the Albany Thicket Biome, South Africa. Data were collected between February 2006 and June 2007 by means of a monthly live-trapping and nest-box monitoring programme, but complementary information on reproduction was opportunistically obtained in 2008–2011 and 2017. During the main study period, the dormouse population showed a steady increase from winter to spring, and a peak of 16 ind. ha-1 in summer, as a result of the influx of juveniles. Winter mortality and/or spring dispersal accounted for the disappearance of 55% of subadults. The annual adult:juvenile ratio was 1.08, whereas the overall sex ratio was 1.94 females per one male. In females, reproductive activity was observed from September to end January (spring–summer). The pattern observed in males was similar, because dormice with descended testes were exclusively found from October to end January. Parturition occurred from the second half of October to the beginning of December, but observations made in 2009 and 2011 indicated that births can take place as late as mid-February. Litters (n = 15) consisted of an average (± SD) of 3.88 ± 0.81 young. We provide evidence that some females can give birth to two litters during the same breeding period, with a 5- to 6-week interval, hence indicating the occurrence of post-partum mating in woodland dormice. Multi-year data from different habitat types are needed in order to confirm and advance our knowledge on this species' population biology and dynamics.
The endangered Cape vulture (Gyps coprotheres) is facing a new emerging threat, e.g. wind energy development. Given their vulnerability to wind energy infrastructure, there is a necessity to establish proactive measures that could potentially mitigate future collisions, such as conservation buffers around breeding colonies and roost sites. This study used 50% kernel density estimates to estimate conservation potential for conservation buffer zone sizes for colonies. Our results indicate a buffer size of ±50 km to cover the core foraging range of the species around colonies.
Brown hyaenas Parahyaena brunnea are classified as ‘Near Threatened’. Although predominantly scavengers, they are frequently blamed for livestock depredations leading to persecution. Information on brown hyaena diets is important for understanding the degree of potential conflict with farming livelihoods and exploring diet variation across their range and how this might shift in response to land use change. Here we explore the diet of brown hyaena on a game reserve in the Limpopo Province, South Africa. We collected scats in 2013 (n = 55) and 2018 (n = 73) from Zingela Game Reserve to identify mammalian prey based on the cuticular scale imprints and cross-sectional appearance of hairs found in scat. Artiodactyls were most frequently consumed (total relative frequency of occurrence = 69.6%), dominated by common duiker Sylvicapra grimmia and steenbok Raphicerus campestris. Smaller prey were also common with Rodentia appearing in 15.8% of scats, although for all prey items there was some variation between years. We found only one occurrence of a domestic species in scats (donkey Equus africanus). Set alongside other studies from across southern Africa the results illustrate that brown hyaena are flexible in their diet and that domestic animals generally only represent a very small proportion of their diet.
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