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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Zambezi Game Count_East 2020.pdf | 937.73 KB |
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Nyae Nyae waterhole 2020.pdf | 946.21 KB |
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Southern Conservancy Game Count 2020.pdf | 818.01 KB |
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Nyae Nyae transect count 2020 final.pdf | 1.2 MB |
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North Central Game Count 2020.pdf | 1.06 MB |
Counts were undertaken at waterholes in the escarpment zone of north west Namibia. In 2018,18 waterholes in 7 conservancies were counted while in 2019 and 2020, the number of waterholes was increased to 26 covering 10 conservancies. Counts were undertaken over a period of 2, 3 or 4 days during which time all animals seen were counted.
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Waterholes_NW_poster_2020 final.pdf | 509.47 KB |
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North West Game Count_Hobatere 2020.pdf | 623.55 KB |
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North West Game Count_Palmwag and Etendeka 2020.pdf | 682.97 KB |
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North West Game Count_South of Vet Fence 2020.pdf | 689.61 KB |
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North West Game Count_North of Vet Fence 2020.pdf | 679.95 KB |
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North West Game Count_Regional 2020.pdf | 693.43 KB |
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Hardap and Naute Game Count 2020.pdf | 774.7 KB |
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 a population’s abundance is of primary importance for conservation management. However, robust estimates of abundance are often difficult to obtain, especially for cetaceans which spend most of their lives submerged. Cetacean abundance is commonly estimated using aerial or vessel-based line transect surveys and distance sampling methods. During 2012–2014, the first line transect surveys to estimate cetacean abundance were conducted in Namibian waters.
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First Abundance Estimates of Heavisides and Dusky Dolphin off Namibia.pdf | 5.23 MB |
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Zambezi Game Count_Bwabwata 2020.pdf | 1.22 MB |
The year’s results show a significant decrease in animals counted (-37%) and overall population estimate (-19%). The game harvesting operations done in the preceding year would have contributed to the lower game numbers. The northern sections of the park (zone 6, 7, 8 and 9) received the most rain and thus an overwhelming majority (53%) of the animals were counted in this area. For the first time in 8 years the park’s modelled carrying capacity is higher than the total grazer biomass (stocking rate).
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Gondwana Canyon Park Game Count 2020_poster.pdf | 1.7 MB |
This year's game count results showed the drastic decrease in game numbers, with gemsbok numbers being down 86% compared to 2019 and plains zebra and wildebeest down 93% and 97% respectively. Red hartebeest have all disappeared from the park as most of them died, a few were harvested, and a few got onto neighbouring properties. Only giraffe managed to increase, as 4 more calves were born over the last year, bringing the total to 22. Naturally, successful reproduction in the other game species over the past season has been very low.
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Gondwana Kalahari Park Game Count 2020.pdf | 965.72 KB |
The rapid improvement of camera traps in recent decades has revolutionized biodiversity monitoring. Despite clear applications in conservation biology, camera traps have seldom been used to model the abundance of unmarked animal populations. The goals of this review are to summarize the challenges facing abundance estimation of unmarked animals, present an overview of existing analytical frameworks, and provide guidance for practitioners seeking a suitable method.
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Abundance estimation of unmarked animals based on camera_trap data.pdf | 1.35 MB |
Estimating abundance of wildlife populations can be challenging and costly, especially for species that are difficult to detect and that live at low densities, such as cougars (Puma concolor). Remote, motion‐sensitive cameras are a relatively efficient monitoring tool, but most abundance estimation techniques using remote cameras rely on some or all of the population being uniquely identifiable. Recently developed methods estimate abundance from encounter rates with remote cameras and do not require identifiable individuals.
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Estimating abundance of an unmarked_low_density species using cameras.pdf | 590.21 KB |
Leopards are among the most enchanting big cats in the world. Their beauty, raw power and elusiveness have fascinated humans through the ages. Our fascination with leopards is a double-edged sword for the big cat, however. The value we place on seeing this beautiful big cat draws tourists and provides funding for conservation.
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Counting Cats_An updated national leopard survey for Namibia.pdf | 2.58 MB |
An overview of elephant conservation and management in Namibia.
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An overview of elephant conservation and management in Namibia.pdf | 5.72 MB |
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Summary of the 2015 Winter Wetland Bird Counts in Namibia.pdf | 3.06 MB |
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Wetland bird counts in Namibia_a summary_2016.pdf | 8.86 MB |
The species accounts are very detailed, doubtlessly benefitting from Peter's intimate and long-term knowledge of Botswana's birds. The range maps give one an immediate indication of where the bird occurs and the breeding bars give one an idea of when to expect the bird and when it breeds. These will prove handy when identifying e.g. migratory birds. The excellent illustrations show the birds in their local race and where sexes and ages differ, these are also illustrated. Perhaps one shortcoming of the illustrations is, that diagnostic features e.g.
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Book Review_Birds of Botswana.pdf | 346.34 KB |
The Nile crocodile,Crocodylus niloticus, is found throughout sub-Saharan Africa, including Namibia, Botswana and Angola. The species was transferred from CITES Appendix I to Appendix II in 2004, although it is recognized as peripherally endangered in Namibia due to diminishing habitat availability primarily from human encroachment. In 2013, a species management plan was approved in Namibia to assess the management of the Namibian Nile crocodile populations. During 2012, an aerial survey was conducted to provide an estimate of Nile crocodile population numbers.
Summary of game counts in north-west Namibia: Regional Summary, June 2016.
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Game counts in north_west Namibia_Regional Summary_June 2016.pdf | 1.05 MB |
Summary of game counts in north-west Namibia, July 2016.
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Game counts in north_west Namibia_July 2016.pdf | 988.19 KB |
Summary of game counts in north-west Namibia: Conservancies north of the veterinary fence, June 2016.
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Game counts in north_west Namibia_Conservancies north of the veterinary fence_June 2016.pdf | 855.27 KB |
Summary of game counts in north-west Namibia: Conservancies south of the veterinary fence, June 2016.
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Game counts in north_west Namibia_Conservancies south of the veterinary fence_June 2016.pdf | 893.65 KB |
Summary of game counts in north-west Namibia: Palmwag and Etendeka concessions, June 2016.
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Game counts in north_west Namibia_Palmwag and Etendeka concessions_June 2016.pdf | 906.75 KB |
Summary of game counts in north-west Namibia: Hobatere concessions area, June 2016.
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Game counts in north_west Namibia_Hobatere concessions area_June 2016.pdf | 794.73 KB |
Summary of game counts in southern Namibia, May 2016.
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Game counts in southern Namibia_May 2016.pdf | 691.95 KB |
Summary of game counts in Hardap Game Park, May 2016.
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Game counts in Hardap Game Park_May 2016.pdf | 842.19 KB |
Summary of game counts in Bwabwata NP, Dry season - Live sightings, 2016.
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Game counts in Bwabwata NP_dry season_Live sightings_2016.pdf | 1.04 MB |
After the initial and in-depth assessment of the leopard population in the Okonjima Nature Reserve via the use of remote camera traps that provided a detailed insight of their demography as well as temporal and spatial distribution patterns, a long-term monitoring program has been introduced. This aims to observe and monitor fluctuations in the composition of the population, as well as shifts and overlaps of home ranges and territories.
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The assessment of leopard density and population size via a capture.pdf | 1.45 MB |
An aerial survey of elephants and other animals was conducted in North West Namibia from 16th September to 8 th October 2016. A total area of 63431km2 was sampled at an average intensity of 8.19% using both transects (at an average of 6.7% sample intensity) and block counts (9.88% sample intensity). Total counts were conducted additionally by flying 921.5km along six rivers.
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Aerial survey of elephants and other animals in north western Namibia.pdf | 8.93 MB |
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Gondwana Kalahari Park Game Count 2016.jpg | 5.56 MB |
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Gondwana Canyon Park Game Count 2016.jpg | 6.98 MB |
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Gondwana Kalahari Park game count 2016.jpg | 2.05 MB |
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GSNL wildlife monitoring Newsletter_2016.pdf | 2.92 MB |
Oryx 1770 and Zebra 1771 covered the most distance with 921.62 km and 877.36 km respectively (assuming a straight line between each ping). Mean daily distances have overall increased since the last period, possibly due to isolated rainfall during the period. Zebra 1773 has possibly been killed or the collar fell off, this is currently under investigation. Note: The mean daily distances in the last newsletter were not correct as they were distances between each ping. They should be multiplied by three to get the mean daily distance.
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GSNL wildlife monitoring Newsletter_2_2016.pdf | 1.94 MB |
Of the animals that had a comparable number of location pings, Oryx 1768 on Keerweder, Hartmann's zebra 1771 on Solitaire and Oryx 1770 on Aandster moved the furthest daily distances with 9.57 km, 7.87 km and 7.35 km respectively. Three animals were collared at the end of July/ beginning of August, including Springbok 132 (after the last one with the same collar id. died in March) and 133, Hartmann's zebra 1775 and 1776. Hartmann's zebra 1776, which is currently ranging on Neuras, moved a considerable mean daily distance of 9.22 km.
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GSNLNewsletter_1_3.pdf | 1.43 MB |