Northern tamandua (a type of anteater) using a fig tree toilet
Tropical Canopy Ecology Project
Numerous arboreal mammals, such as opossums, three-toed sloths, and ocelots, share unique latrines found high within forest canopies.
Jeremy Quiroz Navarro, an independent ecologist from Costa Rica, initially discovered one of these latrines 30 meters above a Strangler fig tree while searching for a camera setup location. He encountered a platform scattered with feces of varying colors and textures, leading him to realize this was just one of many consistent latrine sites associated with Ficus Türkheimii.
Quiroz Navarro and his team installed a video trap at one of these latrines in the Monteverde Cloud Forest Reserve. After two months, they astonishedly identified 17 different mammal species utilizing this site.
“It was incredible,” he remarked. “This number approximates the total diversity of canopy mammals found in these cloud forests.”
The latrine received about three visits daily. Wildcats known as margays marked their territory by spraying urine, while porcupines utilized the area and rubbed their scent onto branches. Observations also included opossums, capuchin monkeys, coatis, howler monkeys, and weasels.
Even the three-toed sloth, previously believed to defecate exclusively on the ground, was observed doing so in the canopy.
Researchers explored an additional 170 trees, discovering more latrines, but exclusively on this particular species of strangler fig. Anecdotal evidence now suggests that strangler figs may serve similar purposes in other regions, including Honduras and Borneo, according to Quiroz-Navarro.
Mexican hairy dwarf porcupine
Tropical Canopy Ecology Project
This shared latrine provides a “fascinating and highly unusual” glimpse into arboreal behavior, commented Neil Jordan from the University of New South Wales, who was not involved in the study. “Studying animals at 30 meters high in the canopy is quite challenging, so it’s understandable that this has remained undiscovered until now.”
Additionally, some terrestrial animals, such as rhinos and hyenas, are known to utilize communal toilets as well. These sites serve various purposes: allowing animals to mark territory, exchange information, provide navigational cues, and concentrate scents to deter predators.
Strangler figs are impressive plants that gradually envelop their host trees, often leading to their demise. Ficus Türkheimii develops branches at the tree crown’s height, creating a structure deemed “comfortable and protective” by Quiroz Navarro.
The branches, which extend up to 12 meters, also act as vital pathways over rivers, emphasizing their significance within the forest ecosystem.
These trees attract climbers, some of whom camp on the latrine platform. Quiroz-Navarro expresses concern that such activity may disrupt the communication pathways between different forest areas, potentially causing wider ecological repercussions.
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Source: www.newscientist.com
