Invasive species introduced to the island by humans like domesticated dogs and cats have also spread diseases among the raccoon population. Developmental activities on Cozumel Island, especially for tourism purposes, is held responsible for decimating pygmy raccoon populations in the wild. Only a few hundred raccoons survive today, leading to their classification as critically endangered by the IUCN. The raccoon primarily inhabits the mangrove forests, and sandy wetlands near the coastline of the island but small populations also exist in some other parts of the island. The Cozumel raccoon or the pygmy raccoon ( ) is a species of raccoon endemic to the Cozumel Island, off the coast of Mexico.
The last known female of this species perished in 2009 and presently only a single male Rabb's fringe limb tree frog survives in the Atlanta Botanical Garden. Despite the efforts by conservation teams to save the frog, a fungal disease triggered by the fungus Batrachochytrium dendrobatidis wiped out large populations of this frog. The species was discovered in the wild as recently as 2005 and formally classified in 2008. This arboreal species of frog was known to inhabit the tree canopies in the forests of central Panama. Though classified as critically endangered by the International Union for the Conservation of Nature (IUCN), the Rabb's fringe limb tree frog ( Ecnomiohyla rabborum) is considered to be extinct in the wild. The success of this program led to the increase in the wild marmot population to about 250 to 300. A large number of animals were thus shifted to Toronto Zoo, Vancouver Zoo, and other facilities within the country for captive breeding. Realizing the urgency of the situation, the conservation authorities of the country decided to capture wild animals and breed them in captivity to increase their numbers.
In 2003, the Vancouver marmot population plummeted down to an ever low of only 30 individuals. With the loss of open alpine landscapes under the influence of warmer temperatures, the survival rates and reproductive patterns of these marmots are being affected adversely. Habitat loss due to changing climate is one of the primary reasons held responsible for a decline in the population of this species. The Vancouver marmot ( Marmota vancouverensis) is a critically endangered species of marmot inhabiting the open alpine habitat in the mountainous regions of Vancouver Island in the Canadian province of British Columbia. A number of wild species found on this continent are threatened with extinction. Similar to the situation in other parts of the world, North America is also losing its species at a fast rate.