Lion population decline

lion have disappeared S1

It is now beyond doubt that savannah Africa’s flagship carnivore the lion (Panthera leo) is in trouble. All recent surveys point to the fact that across the lion’s range numbers are dwindling fast. Furthermore, their habitat and the prey on which they depend are disappearing too. 

Cattle and conservation

TZ cows S3

Human and livestock encroachment is an increasing challenge for conservation across Africa. Habitat degradation and conflict with wildlife is sadly inevitable – as evidenced by the killing of carnivores to cite just one example.

Trees are life!

SH forest poster A2 Fmay2.17 OUTLINES

Trees are vital for the air we breathe, the water we drink, the food we eat and the climate we rely on. This poster is from a series of environmental education materials produced by WCS Tanzania and features species from the Southern Highlands. Print resolution files are available from For more information about WCS Tanzania and the country’s amazing biodiversity see

East Africa’s rarest monkey


First discovered by WCS scientists in 2003, kipunji are large arboreal monkeys, known globally from just two sites in southwest Tanzania. Kipunji are East Africa’s rarest monkey and one of the world’s 25 most threatened primates. For more information about kipunji and other species see

The threat of poison to vultures and carnivores

Poisoning impact poster WCS Tanzania

Retaliatory poisoning is one of the main reasons why both carnivore and vulture populations are in rapid decline across Africa. Information collected by the Ruaha Carnivore Project, Tanzania National Parks (TANAPA) and WCS helped reveal the huge impact just one cow carcass, poisoned by pastoralists as retribution for its killing by lions, can have on the ecosystem. In this case, 62 animal deaths were recorded, but the total number is almost certainly much more.

WCS Tanzania priority species

WCS tz priority species

We focus our species conservation on nine priority taxa, which are chosen for their ecological importance, degree of threat, endemism, iconic status, value in arousing action as flagship species as well as historical and global links with WCS.

The value of vultures

value of vultures

Vultures are extremely important in preventing the spread of disease, regulating scavenger populations and spreading nutrients across the landscape. These services keep ecosystems stable, safeguarding human health and livelihoods. However, vulture populations have drastically declined across Africa in recent years. In Tanzania this is mainly due to pastoralists poisoning carcasses to kill carnivores.
WCS Tanzania, in collaboration with North Carolina Zoo and Tanzania National Parks (TANAPA), monitors vultures with surveys and satellite tagging. This provides crucial data on their population, distribution and behaviour, enabling landscape-wide conservation and environmental education. This infographic is from a series of posters raising awareness of the value and threats to these crucially important species. Print resolution files in English and Kiswahili are available on request from

Sharks and rays in the southwest Indian Ocean

sharks of swio

The southwest Indian Ocean is one of the last remaining strongholds for sharks and rays. At least 211 species are currently known to be found in the region – nearly a quarter of all shark and ray species globally. 56 species are endemic and it is likely that many remain undescribed. Approximately 25 percent of these shark and ray species are threatened although their status is still relatively poorly known given the scarcity of reliable ecological, capture and trade data.