scholarly journals Predation on bat-eared foxes Otocyon megalotis by Cape hunting dogs Lycaon pictus

Koedoe ◽  
1996 ◽  
Vol 39 (1) ◽  
Author(s):  
G.S.A. Rasmussen
Keyword(s):  
Southern Africa ◽  
Prey Species ◽  
Lycaon Pictus ◽  
Mammalian Herbivores ◽  
Hunting Dogs ◽  
Hunting Dog ◽  
Tragelaphus Strepsiceros ◽  
Connochaetes Taurinus ◽  
Sylvicapra Grimmia ◽  
Aepyceros Melampus

The predatory habits of the Cape hunting dog Lycaon pictus have been well documented, and have been found to include almost exclusively mammalian herbivores (Childes 1988). The prey species chosen varies from area to area according to availability, with wildebeest Connochaetes taurinus and Thompson's gazelle, Gazella thomsonii being recorded as preferred prey in East Africa (Malcolm & Van Lawick 1975), whereas impala Aepyceros melampus, kudu Tragelaphus strepsiceros and duiker Sylvicapra grimmia are predominantly selected in southern Africa (Fuller & Kat 1990). This paper documents a case of a pack of Cape hunting dogs preying specifically on bat-eared foxes.

scholarly journals Natural mortality amoung four common ungulate species on Letaba Ranch, Limpopo Province, South Africa

Koedoe ◽  
2002 ◽  
Vol 45 (1) ◽  
Author(s):  
H.P. Cronje ◽  
B.K. Reilly ◽  
I.D. Macfadyen
Keyword(s):  
National Park ◽  
Limpopo Province ◽  
Mortality Data ◽  
Panthera Pardus ◽  
Lycaon Pictus ◽  
Tragelaphus Strepsiceros ◽  
Connochaetes Taurinus ◽  
Wild Dogs ◽  
Respective Species ◽  
Aepyceros Melampus

Five years of mortality data of impala Aepyceros melampus, blue wildebeest Connochaetes taurinus, buffalo Syncerus caffer and kudu Tragelaphus strepsiceros have been used to describe the minimum mortality profiles of the respective species in an open savanna system with the full compliment of predators. Predation is the principle cause of natural mortalities on the study site, Letaba Ranch, which is adjacent to the Kruger National Park. The principle cause of impala mortality are leopards Panthera pardus and wild dogs Lycaon pictus. Lion Panthera leo were major contributors to the mortality of wildebeest and buffalo. Anthrax Bacillus anthracis was the main cause of kudu mortality.

Anti-predator behaviour of kudu and impala in response to mimicked African wild dog presence: do age and sex matter?

Behaviour ◽  
2015 ◽  
Vol 152 (9) ◽  
pp. 1209-1228 ◽  
Author(s):  
Esther van der Meer ◽  
Hervé Fritz ◽  
Olivier Pays
Keyword(s):  
Predation Risk ◽  
Lycaon Pictus ◽  
High Quality ◽  
Vigilance Behaviour ◽  
African Wild Dog ◽  
African Wild Dogs ◽  
Tragelaphus Strepsiceros ◽  
Wild Dog ◽  
Wild Dogs ◽  
Aepyceros Melampus

Predators not only prey upon certain prey species, but also on certain age–sex classes within species. Predation risk and an individual’s response to this risk might therefore vary with an individual’s characteristics. We examined the proportion of time different age–sex classes of kudu (Tragelaphus strepsiceros) and impala (Aepyceros melampus) spent high quality vigilant (costly vigilance that detracts from all other activities) in response to mimicked predation risk by African wild dogs (Lycaon pictus). For both species predation risk was the main factor determining the investment in high quality vigilance behaviour. Age–sex class-specific responses were not related to age–sex class specific lethality risk presented by African wild dogs. For impala, regardless of predation risk, age seemed to have some effect on the investment in high quality vigilance with sub-adult impala spending more time high quality vigilant than adult impala, which is possibly why African wild dogs predominantly preyed upon adult impala.

scholarly journals Prey selection of lions Panthera leo in a small, enclosed reserve

Koedoe ◽  
2002 ◽  
Vol 45 (2) ◽  
Author(s):  
R.J. Power
Keyword(s):  
Prey Selection ◽  
Panthera Leo ◽  
Important Prey ◽  
Direct Observations ◽  
Kwazulu Natal ◽  
Tragelaphus Strepsiceros ◽  
Connochaetes Taurinus ◽  
Related Mortality ◽  
Selection Of ◽  
Aepyceros Melampus

Annual trends in numbers of ungulate species on a 15 km² reserve from 1993 to 1998, were evaluated in the context of lion Panthera leo reintroduction during 1996, and subsequent predation by them. The ungulate prey base was enumerated annually by aerial counts and a road count that took place during 1998. The lion prey record was obtained from direct observations of a radio-located pride of eight lions and daily reserve management records. All ungulate species that underwent precipituous declines were also the most important prey to lions, comprising over 80 % of their prey, and they were preyed upon according to their availability. Lion predation was causal for the declines in wildebeest Connochaetes taurinus, Blesbok Damaliscus pygargus phillipsi and Warthog Phacochoerus africana, while the decline in Kudu Tragelaphus strepsiceros was only partly ascribed to lions, as other non-lion related mortality sources were identified. The only ungulate species to increase subsequent to lion reintroduction was the Impala Aepyceros melampus, which was furthermore under-selected by lions. The uncontrolled population growth of Impala could have elicited ecological degradation, and it was advised to either not stock Impala, or otherwise control their numbers if lions are unable to do so. Lion hunting success and kill rate, were 21 % (n = 63) and 1 kill/4.4 days, respectively. Three bushpigs Potamochoerus larvatus were killed but not utilised,and this finding is corroborated by an intensive study in Kwazulu-Natal, and this aversion is discussed. Predators can cause unprecedented declines of their prey where the prey are confined to small reserves that have no refuge from predation. On an annual basis, prey may need to be augmented to sustain predators on small reserves

scholarly journals Contrasting capabilities of two ungulate species to cope with extremes of aridity

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Melinda Boyers ◽  
Francesca Parrini ◽  
Norman Owen-Smith ◽  
Barend F. N. Erasmus ◽  
Robyn S. Hetem
Keyword(s):  
Climate Change ◽  
High Water ◽  
Future Climate Change ◽  
Body Temperatures ◽  
Wet Season ◽  
Trade Off ◽  
Ambient Temperatures ◽  
Mammalian Herbivores ◽  
Dry Seasons ◽  
Connochaetes Taurinus

AbstractSouthern Africa is expected to experience increased frequency and intensity of droughts through climate change, which will adversely affect mammalian herbivores. Using bio-loggers, we tested the expectation that wildebeest (Connochaetes taurinus), a grazer with high water-dependence, would be more sensitive to drought conditions than the arid-adapted gemsbok (Oryx gazella gazella). The study, conducted in the Kalahari, encompassed two hot-dry seasons with similar ambient temperatures but differing rainfall patterns during the preceding wet season. In the drier year both ungulates selected similar cooler microclimates, but wildebeest travelled larger distances than gemsbok, presumably in search of water. Body temperatures in both species reached lower daily minimums and higher daily maximums in the drier season but daily fluctuations were wider in wildebeest than in gemsbok. Lower daily minimum body temperatures displayed by wildebeest suggest that wildebeest were under greater nutritional stress than gemsbok. Moving large distances when water is scarce may have compromised the energy balance of the water dependent wildebeest, a trade-off likely to be exacerbated with future climate change.

scholarly journals Serological survey of bovine viral diarrhoea virus in Namibian and South African kudu (Tragelaphus strepsiceros) and eland (Taurotragus oryx)

2013 ◽  
Vol 84 (1) ◽  
Author(s):  
Terence P. Scott ◽  
Eleanor Stylianides ◽  
Wanda Markotter ◽  
Louis Nel
Keyword(s):  
South Africa ◽  
South African ◽  
Southern Africa ◽  
Bovine Viral Diarrhoea Virus ◽  
Enzyme Linked Immunosorbent Assay ◽  
Bovine Viral Diarrhoea ◽  
Serum Samples ◽  
Diarrhoea Virus ◽  
Central Regions ◽  
Tragelaphus Strepsiceros

Bovine viral diarrhoea virus (BVDV) is a pestivirus that affects members of the order Artiodactyla, including members of the subfamily Bovinae. Little is known about the seroprevalence of BVDV in southern Africa, especially the prevalence in wild ruminant populations such as kudu (Tragelaphus strepsiceros). A handful of random surveys suggested that seroprevalence ranged between 6% and 70% in southern African wild ruminants. The present study aimed to determine the seroprevalence of BVDV amongst kudu and eland (Taurotragus oryx) from Namibia and South Africa. A BVDV-specific enzyme-linked immunosorbent assay was performed on 50 serum samples from kudu and eland from South Africa and Namibia. The seroprevalence of BVDV in South African kudu was 71%, identical to that in Namibian kudu. The seroprevalence in Namibian eland was 40%. The kudu and cattle farming (free ranging) regions in Namibia predominantly overlap in the central regions, ensuring ample opportunity for cross-species transmission of BVDV. It is therefore important to determine the true prevalence of BVDV in southern Africa in both domesticated and wild animals. In addition, a potential link between BVDV incidence and a devastating rabies epidemic in Namibian kudu was proposed and such a notion could be supported or discredited by comparative prevalence data.

scholarly journals Results of wellness examinations of 28 African hunting dog (Lycaon pictus) puppies at the Denver Zoological Foundation

2007 ◽  
Vol 78 (1) ◽  
Author(s):  
D.E. Kenny ◽  
K. Mobley ◽  
S. Hinkle ◽  
C. Bickel ◽  
F. Knightly ◽  
...  
Keyword(s):  
Enteric Pathogens ◽  
Age Group ◽  
Lycaon Pictus ◽  
Morphometric Measurements ◽  
Blood Samples ◽  
Dental Eruption ◽  
Hunting Dog ◽  
Physical Examinations ◽  
The Mean ◽  
Complete Blood Counts

Since 2002 the Denver Zoological Foundation has produced 28 African hunting dog (Lycaon Pictus) puppies in 3 litters (7, 14 and 7 pups) from the same dam and sire. Wellness examinations were performed on each puppy. The wellness examinations spanned the range of 6-14 weeks of age. During the wellness examinations, in addition to physical examinations and vaccinations, blood samples for complete blood counts and sera biochemistry were obtained.Weights, morphometric measurements, rectal cultures for enteric pathogens and dental eruption patterns were recorded. Blood samples from each age group were compared with adult values from the Denver Zoo. It was noted that animals from the 14-pup litter were 63.6 % of the mean weight of the two 7-pup litters, but size differences (in, for example, total bodylength) were less apparent. Two organisms were recovered from rectal cultures, namely Yersinia enterocolitica (n = 2) and Plesiomonas shigelloides (n = 3). The following deciduous eruption patterns were also noted; at 6 weeks, I1-3, i1-3, C1, c1, P1-2 and p1-2 (n=7) were present, at 9-10 weeks, P3 and p3 (n=21) , and finally at 12-14 weeks, P4 (n = 28).

scholarly journals Assessment of innate working properties of German wirehaired pointers in Serbia

2015 ◽  
Vol 69 (5-6) ◽  
pp. 389-400
Author(s):  
Milosava Matejevic ◽  
Zoran Ristic ◽  
Milivoje Urosevic ◽  
Vladimir Markovic ◽  
Milutin Kovacevic
Keyword(s):  
Free Time ◽  
Quality Of Work ◽  
Hunting Dogs ◽  
Pace Of Life ◽  
Hunting Dog ◽  
Insight Into

In conditions of accelerated pace of life, reduced financial capacities and free time, modern hunters give a high priority to breeds of hunting dogs characterized by versatility or multiple usability in hunting. Accordingly, German Wirehaired Pointer is a kind of hunting dog which breeding is based on the principle of versatility. The objective of this work was to assess the quality of innate i.e. hereditary working properties of German Wirehaired Pointer in Serbia, in order to get an insight into their versatile usability in hunting and hunting tourism in Serbia. After analyzing the working results of 211 dogs, which had passed the spring breeding exams in the period from 2006. to 2013., the obtained data indicate that the quality of work, that is, the quality of innate working characteristics of German Wirehaired Pointer in Serbia, is increasing.

scholarly journals A useful marking method for free living mammals

Koedoe ◽  
1971 ◽  
Vol 14 (1) ◽  
Author(s):  
E. Young
Keyword(s):  
Wildlife Management ◽  
Free Living ◽  
Desert Bighorn Sheep ◽  
African Mammals ◽  
University Of Pretoria ◽  
Marking Technique ◽  
Drinking Places ◽  
Connochaetes Taurinus ◽  
The University ◽  
Aepyceros Melampus

A paint-spraying device was employed for marking wild African mammals without capture. This relatively inexpensive marking technique, which had originally been used for the marking of American desert bighorn sheep at drinking places, was also successfully applied in the marking of impala, Aepyceros melampus, blue wildebeest, Connochaetes taurinus, Burchell's zebra, Equus burchellii antiquorum aud the African elephant, Loxodonta africana. The apparatus used differs in some respects from that originally described by Hanson (1964). It was also used for the marking of animals from a mobile unit and away from fixed drinking places. This paper is based on a part of a thesis, submitted to the University of Pretoria in partial fulfilment of the requirements for the degree of D.Sc. (Wildlife Management).

Sign in / Sign up

Export Citation Format

Share Document