This archive of reports of wildlife surveys in Namibia aims to:
Public access to information is a vital component of ensuring community engagement in prevalent issues. Wildlife surveys are critical to determine the health of wildlife populations and determine trends over time to guide conservation and management actions.
Wildlife surveys are done for different species using methods that are suited to counting them (e.g. by air or road) in their natural habitats. Such surveys need to be repeated over time to detect long-term trends and inform conservation managers. The Namibian government, non-governmental organisations and private reserves all conduct regular surveys covering different parts of Namibia and targeting different species. This archive will thus serve as a repository of our collective knowledge of the trends and status of a variety of species occurring throughout Namibia.
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The lions of Namibia's Kunene Region are sought after by tourists, but they are a local threat to livestock farming, and are still largely unresearched in terms of their ecology and ranging behaviour. Though lions in Kunene have been monitored for more than twenty years, it may come as a surprise that the population has not been systematically counted throughout its range - until now. It is less surprising when one realises that the lion range in Kunene covers more than 51,000 km² of mountainous desert landscape.
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First_ever systematic lion population survey in northwest Namibia.pdf | 1.02 MB |
Robust abundance estimates of wild animal populations are needed to inform management policies and are often obtained through mark–recapture (MR) studies. Visual methods are commonly used, which limits data collection to daylight hours and good weather conditions. Passive acoustic monitoring offers an alternative, particularly if acoustic cues are naturally produced and individually distinctive. Here we investigate the potential of using individually distinctive signature whistles in a MR framework and evaluate different components of study design.
Knowledge of the occurrence and distribution of cetaceans is particularly important for conservation and management, but is still limited within Namibian waters. We collated 3211 cetacean records from the Namibian Exclusive Economic Zone (EEZ) for the period 2008 to 2016 and applied the principle of minimum cross entropy (MinxEnt) to predict habitat suitability. MinxEnt is a generalised form of maximum entropy modelling that allows incorporation of additional information such as sampling bias.
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Predicting large_scale habitat suitability for cetaceans off Namibia using MinxEnt.pdf | 2.91 MB |
Assessing the numbers and distribution of threatened species is a central challenge in conservation, often made difficult because the species of concern are rare and elusive. For some predators, this may be compounded by their being sparsely distributed over large areas. Such is the case with the cheetah Acinonyx jubatus. The IUCN Red List process solicits comments, is democratic, transparent, widely-used, and has recently assessed the species.
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The distribution and numbers of cheetah in southern Africa_2017.pdf | 6.63 MB |
This survey attempt to quantify the incidence of human-crocodile conflicts (as form of humanwildlife conflicts) in the three perennial rivers namely: Kunene River, Okavango River and the four Zambezi River channels. These are the three river systems in Namibia that are most affected by human-wildlife conflicts. The survey further examine the perspective of local people who use these rivers on HWC, by unpacking the root causes of conflicts and identifying methods to mitigate HWC in the future.
In 2011, the Ministry of Environment and Tourism conducted a questionnaire to various stakeholders to determine relative abundance of large carnivores throughout Namibia. The results of this questionnaire were quantified and mapped to establish the current range and relative abundance of the six Namibian large carnivores. Recent population estimates for leopards are used here, however, the remaining species we used estimates from the previous Atlas as our best estimates to date.
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Namibia Large Carnivore Atlas_2012.pdf | 3.87 MB |