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The diet selection, habitat preferences and spatial ecology of relocated giraffe (Giraffa camelopardalis) in the Kgalagadi Transfrontier Park

Old records and historic eyewitness accounts of giraffe (Giraffa camelopardalis) in the Kalahari, led to the decision by park management to reintroduce giraffe in 1991. Twenty years ago (1991) the translocation of 8 giraffe from the Etosha National Park took place to an area in the Kgalagadi Transfrontier Park which there is limited information as to their adaptation success or potential impact on the environment. The giraffe was transported to a specially built boma measuring a few hundred hectares in

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Nightly selection of resting sites and group behavior reveal antipredator strategies in giraffe

This study presents the first findings on nocturnal behavior patterns of wild Angolan giraffe. We characterized their nocturnal behavior and analyzed the influence of ecological factors such as group size, season, and habitat use. Giraffe were observed using night vision systems and thermal imaging cameras on Okapuka Ranch, Namibia. A total of 77 giraffe were observed during 24 nights over two distinct periods—July–August 2016 (dry season) and February–March 2017 (wet season). Photoperiod had a marked influence on their activity and

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Long-term population dynamics of African ungulates in Waterberg Plateau National Park, Namibia

The current study was undertaken to determine long-term population trends (33 years) of ungulate species in the Waterberg National Park (WNP), Namibia, using aerial and waterhole counts of ungulates during the years 1980−2013.We tried to establish how rainfall influences the multi-species population dynamics. During this period sixteen ungulates species were recorded. Among these, eight have shown an increase in numbers during the years 1984−2013, six other decreased, and populations of two other species remained stable. Roan and sable antelope, kudu

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A study of animal movement in the Hoanib River catchment, northwestern Namibia

Seasonal movements of domestic stock and wildlife were analysed across the Hoanib River catchment. Data were gathered by ground and aerial surveys and represent the seasonal movement of animals, rather than the total number of animals in the catchment area. Domestic stock movement and distribution did not vary substantially and appeared to be associated with the seasonal, spatial availability of water and grazing in different places, and with human settlements. There was an apparent movement of cattle out of the

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Matrilineal population structure and distribution of the Angolan giraffe the Namib desert and beyond

The distribution maps of giraffe (Giraffa) subspecies in southern Africa are based on historical assumptions, yet some populations have likely been misidentified, hindering effective conservation efforts. Particularly, the populations in Zimbabwe are poorly studied, and translocations, such as the 1991 movement of giraffe from Namibia’s Etosha National Park to mitigate the human-induced decline of Namibia’s desert-dwelling giraffe in the lower Hoanib and Hoarusib Rivers, was concluded without consideration of genotype. Mitochondrial DNA sequence analyses from cytochrome b and control region

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Relationships between male giraffes’ colour, age and sociability

In species in which males signal competitive ability through secondary sexual traits, males with different levels of trait expression may adopt different reproductive tactics to maximize their reproductive success. In fission-fusion social systems, the most dominant males often roam widely in search of females in oestrus, and thus exhibit different patterns of sociability from subordinate males that utilize alternative reproductive tactics. Giraffes, Giraffa camelopardalis, are rare among mammals in that they are sexually dimorphic in colour, and colour is hypothesized

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Current knowledge about the social organisation of giraffes

The Etosha Giraffe Research project in Namibia focuses on the social relationships among giraffes, which have previously been described as having little social structure nor strong bonds between individuals (Dagg and Foster, 1976; Le Pendu et al., 2000; Moss, 1976). Giraffes live in a fission-fusion society characterised by frequent changes of associates, with males adopting a roaming strategy to search for widely distributed female groups (Bashaw et al., 2007; Bercovitch et al., 2006; Dagg and Foster, 1976; Shorrocks and Croft,

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Arthropod parasites of springbok, gemsbok, kudus, giraffes and Burchell’s and Hartmann’s zebras in the Etosha and Hardap Nature Reserve, Namibia

A total of 48 springbok, 48 gemsbok, 23 kudus and 6 giraffes were examined for ticks and lice, while 9 Burchell’s zebras and 6 Hartmann’s mountain zebras were examined only for ticks. Springbok and gemsbok were shot in both the Etosha National Park in the north and the Hardap Nature Reserve in the south of Namibia. All the other animals were shot in the Etosha National Park. A total of 7 ixodid tick species and 8 lice species were recovered.

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Internal parasites of giraffes (Giraffa camelopardalis angolensis) from Etosha National Park, Namibia

During three seasonal periods, parasitological samples were collected from six giraffes (Giraffa camelopardalis angolensis) in the Etosha National Park, Namibia. The helminths recovered included Parabronema skrjabini, Skrjabinema spp., Haemonchus mitchelli and Echinococcus sp. larvae; Cytauxzoon sp. was the only hematozoan found. The low mean abundances of all helminths which ranged from 18 to 531 may be attributed to the low rainfall of this region or because the giraffe is not a preferred host for these species of helminths.

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Development of 11 microsatellite markers for Giraffa camelopardalis through 454 pyrosequencing, with primer options for an additional 458 microsatellites

Many wild giraffe populations are declining across Africa, with two subspecies listed by the IUCN as Endangered in the past 4 years. We developed 11 microsatellite markers from Giraffa camelopardalis angolensis in Etosha National Park, Namibia using 454 sequencing. In 70 individuals, the loci showed 2–4 alleles per locus and expected heterozygosities of 0.082–0.711. There were no significant deviations from Hardy–Weinberg equilibrium for any of the loci. Null allele frequencies were low (<3 %) across all loci. We present primer options for

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