Distribution and habitat change of the critically endangered Kaapori capuchin (Cebus kaapori)

The Kaapori Capuchin (Cebus kaapori) is endemic to the eastern Brazilian Amazon and is considered one of the world’s most threatened primates. As the Amazon is shrinking due to human activities and climate change the habitat of the Kaapori is gradually disappearing and- the Kaapori is more vulnerable than ever. By analyzing published, unpublished, and field data I explore the distribution of the Kaapori and how their habitat has changed from the year they were observed until 2022 within an estimated home range. The results show that most of the observations of the Kaapori are within the IUCN distribution, but there are some notable observations outside of this distribution. Observations within the Xingu endemic area and on Marajó island-, suggest that the distribution suggested by the IUCN does not span the full actual distribution of the Kaapori. The calculated home ranges show only small changes in the composition and coverage of the habitat, with the majority still having some forest cover. Even if there still is forest cover in the home ranges of the Kaapori, we do not know the condition of the forest and if it is highly disturbed it may spell the end of the Kaapori capuchin.