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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.

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).

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.

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.

The coastal population of common bottlenose dolphins Tursiops truncatus found in Namibia is regionally isolated and unique. This population faces several potential anthropogenic threats, especially in Walvis Bay, including boat-based tourism, a commercial harbour undergoing expansion, and aquaculture for oysters and mussels. Between 2008 and 2012, 238 boat-based surveys were conducted, resulting in 170 encounters with bottlenose dolphins. Overall, group sizes varied from 1 to 45 individuals (mean 10.7).

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.

A total of 250,786 Cape Cormorants, of which 16,038 were individuals on nests in 349 colonies, and 15,831 Cape Fur Seals were counted during a complete aerial photographic census of the island of Tigres and part of the adjacent coast in Angola in March 2017. Such a concentration of birds and seals and the large number of breeding Cape Cormorants highlights the need to protect Tigres and its rich surrounding waters. Keywords: aerial census, Arctocephalus pusillus pusillus, Baía dos Tigres, Cape cormorant, Cape fur seal, Phalacrocorax capensis.

Vultures provide essential ecological services, yet are amongst the world's most threatened species with populations having declined by more than 95% within ten years in some places. The biggest factor causing this decline is the use of poison, either intentionally or unintentionally. Other factors causing declines are collision with and electrocution by powerlines, illegal harvesting for traditional medicines, habitat loss and drowning in reservoirs.

This research project deploys satellite tracking collars on ungulates in the GSNL  and monitors their movements as well as other environmental parameters. Its objective is to document movement corridors and identify impediments to migration routes for springbok, oryx and Hartmann’s mountain zebra. Stefanie Urban successfully completed her Bachelor of Natural Resources Management (Honours) project at NUST at the end of 2016. Her project report is available on request.

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.

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.

Numbers of most species dropped during 2015 due to the effects of the drought & the lack of grazing. Although there were a few mortalities, many animals have moved to areas outside the park where conditions are more favourable. This is to be expected in an open system.

Many long-distance migrating shorebird (i.e., sandpipers, plovers, flamingos, oystercatchers) populations are declining. Although regular shorebird monitoring programs exist worldwide, most estimates of shorebird population trends and sizes are poor or nonexistent. We built a state-space model to estimate shorebird population trends. Compared with more commonly used methods of trend estimation, state-space models are more mechanistic, allow for the separation of observation and state process, and can easily accommodate multivariate time series and nonlinear trends.

Summary of the 2015 Summer Wetland Bird Counts in Namibia.

On 24 June 2014 we conducted a total count of the Burchell’s Zebra and Red Hartebeest in of the Reserve. To get the total count we drove on designated routes, throughout the northern part of the Reserve, where the B. Zebra and Hartebeest herds are normally seen, and counted all the B. Zebra and Hartebeest seen. The count was divided into three routes, all starting from Keerweder at the same time.

This report provides summarised results and analysis of the annual game count held on the NamibRand Nature Reserve and the Pro-Namib Conservancy on the 31st of May 2014. This is the tenth consecutive year that the count was held since 2005 and the third year that the farms Springbokvlakte and Saffier have been included. Teamwork was once again the essence of the day as concessionaires, landowners, neighbours and NRNR staff joined in to participate in the event.

This report provides summarised results and analysis of the annual game count held on the NamibRand Nature Reserve and Pro-Namib Conservancy on the 1st of June 2013- for the ninth consecutive year since the count was initiated in 2005. This was also the second year running that the farms Springbokvlakte and Saffier were included in the count since they joined to the reserve in 2012. Teamwork was once again the essence of the day as all concessionaires, landowners, neighbours and NRNR staff joined in to participate in the event.

Mountain Zebra numbers were up in 2013 due to movement into the park from the west to take advantage of the artificial waters and better grazing.

The following is a summary of waterbird count data for selected species in Namibia, covering the period 1977 to December 2008.

Springbok numbers were down during 2012 due to dispersal into broken hilly country to the west of the park. Where they were present, they were only found in small groups which could have resulted in under counting.

This report provides feedback and results of the annual game count held on NamibRand Nature Reserve and the Pro-Namib Conservancy on 2 June 2012 - for the eighth consecutive year since the counts were initiated in 2005. As usual, this event was combined with the Reserve’s annual general meeting, which makes it an ideal opportunity to hold a game count with community participation. In June 2009 a new area was added to the existing eight zones (Zone 9), in order to incorporate the Pro-Namib Conservancy.

This is the last article in a series describing the results of regular wetland bird counts in Namibia. This paper looks at eight coastal sites, including two of Namibia's four Ramsar sites i.e. Sandwich Harbour and Walvis Bay. Unfortunately data for Namibia's other coastal Ramsar site, the Orange River Mouth, is incomplete and hence it has not been included in this analysis. (Larger scale replications of the graphs in this article are attached to the end of this edition).

Numbers of some species were up in 2011 due to the effect of good rains. This also caused a decrease in Mountain Zebra numbers as they moved westwards out of the park.

A vehicle-based road count method is used. This method works well for common plains game but will not give good results for all species; especially smaller secretive animals, nocturnal animals, and animals in mountainous areas. Other monitoring methods (e.g. aerial census, foot patrols, specialist species monitoring) and local knowledge are also important. This means that the road counts will provide part of the information rather than replace these other methods - i.e. the methods all work together each providing a piece of the 'pie'.