Many Matschie's thrive in captivity and maintain healthy lives interacting with one another. The numbers of tree-kangaroos in captivity in North America have been recorded over the years, and in 1997, the Matschie's tree-kangaroos’ population reached a maximum of 90 animals, but it has declined to 53 in the past few years in these conservation zoos. North America developed the Tree Kangaroo Species Survival Plan (TK-SSP) in 1991 and the TK-SSP Master Plan in 1993 to help with their conservation. Conservation education programs have been set up in some schools thanks to Lisa Dabek, a conservation expert for the Matschie's tree-kangaroos, who has dedicated much of her career and life to helping ones in captivity as well as studying some in the wild. Dabek, along with other scientists, have captured many Matschie's in the wild and radio collared them so they could study their habits. Collaring them helps to learn their home ranges and the types of environments they stay in so that the scientists can help with conserving those types of areas.