CSS Cologne Zoo

The Center for Species Survival at Cologne Zoo was established in 2024 through a formal collaboration between Cologne Zoo and the IUCN SSC Species Survival Commission. It aims to gather knowledge on the status of threatened populations, identify priority taxa for conservation, support integrated and targeted conservation planning for these priority taxa, and ultimately catalyze the most urgently needed conservation actions on the ground. The taxonomic focus of Cologne Zoo’s CSS is on Asian songbirds and wild pigs.

About our work

Cologne Zoo has a long history of supporting species conservation worldwide. With almost 800 species, 160 of which are listed as threatened by the IUCN Red List, Cologne Zoo is not only one of the most diverse zoos, but is also committed to providing a modern ark for many endangered species. In addition to these ex-situ conservation efforts, Cologne Zoo provides substantial financial support for conservation projects around the world and has been at the forefront of the Reverse the Red initiative, which aims to reverse the trend of increasing numbers of threatened species being added to the IUCN Red List. Our work will follow the One Plan Approach to conservation, by linking and sharing Cologne Zoo's many years of experience and expertise in ex-situ and in-situ conservation. The center will provide human resources and expertise to strengthen conservation efforts in line with the IUCN Species Conservation Cycle (Assess, Plan, Act) and support networking and collaboration among NGOs, governments and other stakeholders needed to conserve threatened species of Asian songbirds and wild pigs. To this end, we will work closely with and support the IUCN SSC Asian Songbird Trade and Wild Pigs specialist groups to improve and accelerate conservation efforts for Asian songbird and pig species on the brink of extinction.   

Supporting the Species Conservation

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Supporting the conservation of Asian songbirds affected by illegal trade

Over the past decade, the unsustainable illegal trade in large numbers of songbirds in Southeast Asia has come to light, alarming many conservationists. On Java alone, it is estimated that more than 80 million songbirds are kept in small cages in private homes. Indonesia has a long history of keeping songbirds for singing competitions, use in religious ceremonies or as status symbols. Demand is high for rarer species and those with more attractive plumage or songs. Research conducted on the songbird trade market in recent years has shown that the international songbird trade market is still poorly understood. Furthermore, markets in Indonesia appear to be highly dynamic and species demand and intensity can change relatively quickly over time. The trade in songbirds is highly complex and therefore requires coordinated efforts by various stakeholders. The IUCN SSC has established the Asian Songbird Trade Specialist Group (ASTSG) to address the Asian songbird crisis. CSS Cologne Zoo will work closely with the ASTSG to support assessments of the status of Southeast Asian songbirds and to facilitate conservation planning and action for priority taxa.

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Supporting the species conservation of wild pigs impacted by human-wildlife conflict and African Swine Fever (ASF)

Despite their economic and cultural importance to many human societies, pigs do not have the best reputation and are certainly not among the world's most popular animals. In fact, most people could probably name only one or two of the 21 species found around the world. Each has its own unique evolutionary history and role in its local ecosystem. Pigs are ecosystem engineers and keystone species when naturally abundant. Their behavior and ecology contribute significantly to the functioning of ecosystems, for example through seed dispersal, plant fertilization and mechanical soil turnover. 

At the same time, pigs are seen as pests, particularly in landscapes dominated by human agriculture. This often leads to conflicts between humans and wild boar. Another major threat to wild pigs is African swine fever (ASF). While wild African pigs appear to be immune to the virus, it causes almost 100% mortality in all other pig species in the rest of the world. The spread of the ASF virus is heavily influenced by humans in the form of small-scale pig farmers and the domestic pig industry. ASF and conflicts between wild pigs and humans are particularly threatening for the pig species, whose range is limited and which are endemic to islands in Southeast Asia.. Against this background, the focus of our work will be to update the Red List assessments of wild pigs, taking into account new emerging threats, and to facilitate conservation planning and action on ASF and human-pig conflict.

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Networking & capacity building for Assess, Plan, Act

The CCS Cologne Zoo will also focus on networking local and international stakeholders, and in particular on building local capacity to contribute to the conservation cycle and empower young local people to become involved in saving endangered species. Bird trade and the impact of African swine fever both have their greatest geographical impact on wildlife in Indonesia. Therefore, building capacity and improving networking among Indonesian conservationists will be the key to effective conservation of wild pigs and Asian songbirds.

Meet our team

Theo B. Pagel
Prof Theo B. Pagel

Theo B. Pagel worked as a curator at Cologne Zoo (Germany) from 1991-2007 and started Cologne Zoo’s conservation work in Vietnam. Since 2007, he has been CEO of this institution.  He coordinated the European conservation breeding program for the Bali Mynah from 1992-2007 and served as president of the World Association of Zoos and Aquariums (WAZA) from 2019-2021. In addition, he co-chaired IUCN’s and WAZA’s initiative Reverse the Red (RtR). He also works actively in Specialist Groups of the IUCN, such as the Asian Songbird Trades Specialist Group (ASTSG) and the Asian Elephant Specialist Group (AsESG).


Matthias Markolf
Dr Matthias Markolf

Matthias Markolf is a biologist with expertise in behavioral ecology and biodiversity assessment and monitoring. He conducted research on birds, carnivores, elephants and lemurs. In particular, he conducted extensive research on lemur diversity in Madagascar. Since 2012, Matthias has been assisting the IUCN SSC Primate SG to update the Red List assessment of lemurs. As co-founder of Chances for Nature e. V., he has spent many years working for the conservation of endangered species in Madagascar and Southeast Asia, implementing conservation actions on the ground. Since January 2024, he has been working as Species Survival Officer of the Center for Species Survival at Cologne Zoo.