S. A. Wich

Deforestation projections imply range-wide population decline for critically endangered Bornean orangutan

The paper projects deforestation impacts on Bornean orangutan populations, finding significant habitat loss in unprotected forests and oil palm concessions by 2030.

The historic range and drivers of decline of the Tapanuli orangutan

This study reconstructs the historical range and decline drivers of the Tapanuli orangutan, showing habitat fragmentation and hunting led to population loss before industrial deforestation.