The International Primatological Society was created to encourage all areas of non-human primatological scientific research, to facilitate cooperation among scientists of all nationalities engaged in primate research, and to promote the conservation of all primate species. The Society is organized exclusively for scientific, educational and charitable purposes.

Project Monkey Island: Help needed!

Please join us in helping Puerto Rico's devastated families rebuild their community while helping them reconstruct the desperately needed infrastructure on 'Monkey Island' - a tiny island off Puerto Rico's eastern shore and home to over 1,500 free-roaming rhesus monkeys that has been a crucial site for scholars all over the world to study their behaviours since 1938! With the docks destroyed, countless trips to the island is the only way to get hundreds of pounds of food to the monkeys everyday because the small motor boat only holds a few bags of food at a time.

These daily efforts include clearing the island of debris and rebuilding the fresh water collection systems. All this consumes the day, slowing everyone's progress in rebuilding their own homes to a crawl. They need our help! So please visit www.projectmonkeyisland.org to find out how you can help - donate, volunteer, or sponsor a giving package. To donate to #projectmonkeyisland, visit https://projectmonkeyisland.org/giving.html

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Featured Articles in the International Journal of Primatology

Home Range Size and Habitat use by Cat Ba Langurs (Trachypithecus poliocephalus) in a Disturbed and Fragmented Habitat.

Rebecca Hendershott, Benjamin Rawson, Alison Behie

Primate home range size and habitat use are affected by resource availability, which may change seasonally. Limestone langurs (Trachypithecus genus), including the Critically Endangered Cat Ba Langue (Trachypithecus poliocephalus), live on limestone karst hills with.. read more.

Spatial Patterns of Primate Electrocutions in Diani, Kenya

Lydia Katsus, Pamela M. K. Cunneyworth, Katy M. E. Turner, Andrea Presotto

Electrocution from power infrastructure threatens many primate species, yet knowledge of effective evidence-based mitigation strategies is limited. Mitigation planning requires an understanding of the spatial distribution of electrocutions to... read more.

Grantee spotlight

PROJECT UPDATE: Spatial distribution of the mantled howler monkey (Alouatta palliata) in relation to the plant structure in the Santa Emilia mountains, Danlí, Honduras.

J.J. Cruz

The Santa Emilia mountain (photo 1) is part of the "Macizo Montañoso Apaguíz-Apapuerta" a protected area of the Honduran Protected Areas System, which hosts a number of species of fauna and flora native to the country, including the howler monkey (Alouatta palliata; photo 2). This mountain is...read more

Sleeping site seletion of Bale monkeys (Chlorocebus djamdjamensis) at Kokosa forest fragment in southern Ethiopia

Addisu Mekonnen

Sleeping site selection is an important aspect in primate behavioural ecology, where safe sleeping sites and trees are crucial for individual survival and fitness. Several hypotheses have been proposed for sleeping site selection of many primate species. Nothing is know, however, about the sleeping site selection of the little-known, endemic, bamboo-eating Bale monkeys in southern Ethiopia...read more