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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).

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.

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.

Accurately estimating hippopotamus (Hippopotamus amphibius) numbers is difficult due to their aggressive nature, amphibious lifestyle, and habit of diving and surfacing. Traditionally, hippos are counted using aerial surveys and land/boat surveys. We compared estimates of numbers of hippos in a lagoon in the Okavango Delta, counted from land to counts from video taken from a DJI Phantom 4TM drone, testing for effectiveness at three heights (40 m, 80 m, and 120 m) and four times of day (early morning, late morning, early afternoon, and late afternoon).

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.

We counted waterbirds along a fixed route in the panhandle of the Okavango River in Mahango Game Reserve in the dry season during two seven-year periods (1991–1997 and 2000–2006). Palearctic migrants represented by 11 species in 1991–1997 and nine species in 2000–2006 together composed only a small percentage of all birds recorded in both periods. The two most numerous foraging guilds were birds foraging in shallow water and those foraging in deep water. The former guild was more numerous in 2000–2006, while the latter guild was more numerous in 1991–1997.

A boat survey conducted on 30 December 2017 along an 8.6 km stretch of the Okavango River revealed 45 adult Rock Pratincoles and 20 young birds. This brings the estimated number of Rock Pratincoles in the Okavango system in Namibia to about 361 birds, and for all river systems in Namibia to about 410 birds. Keywords: Glareola nuchalis, Namibia, Okavango river, Rock Pratincole, status.

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.

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.

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.

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.

Summary of the 2014 Summer Wetland Bird counts in Namibia.

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 Okavango River system, about 480 kms of which constitutes the border between Namibia and Angola, has previously been largely neglected in the annual wetland water-bird counts programme conducted throughout Namibia. The exceptions have been the Mahango Game Reserve and a section of the river at Shamvura Camp where voluntary wetland water-bird counts have however been conducted over a consecutive period of 15 years and 11 years respectively. The remainder of the river had been left uncounted until 2012.

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

Wetland bird counts were once again conducted throughout Namibia during the months of January and February 2012. A total of 33 sites were covered resulting in 262 833 birds of 112 species. For the first time since 2007 counts were also conducted in the Caprivi, on the Okavango and the Kwando Rivers. The effects of the good rainy seasons over the past few years are still very evident with low numbers of especially flamingos and ducks recorded at the coast.

This article continues the series on trends in Namibian waterbird populations and summarizes count data for ducks and geese for the period 1977 to December 2008. For each species the Red Data Book (RDB) status, both global and Namibian, is given, the population trend as per Wetlands International, the number of times the species was counted, the number of times it has passed the 1% population criterion, the maximum count and the sites where it has passed the 1% population criterion.

This article continues the series on trends in Namibian waterbird populations and summarizes count data for ducks and geese for the period 1977 to December 2008. For each species the Red Data Book (RDB) status, both global and Namibian, is given, the population trend as per Wetlands International, the number of times the species was counted, the number of times it has passed the 1% population criterion, the maximum count and the sites where it has passed the 1% population criterion.

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.

The sixth article in the series on trends in Namibian waterbird populations summarises count data for African Spoonbill, Hamerkop, Greater and Lesser Flamingo and Wattled Crane for the period 1977 to December 2008. For each species the Red Data Book (RDB) status, both global and Namibian, is given, the population trend as per Wetlands International, the number of times the species was counted, the number of times it has passed the 1% population criterion, the maximum count and the sites where it has passed the 1% population criterion.