Proboscis monkeys are found only on the island of Borneo and inhabit mainly riverine forests, mangroves, peat swamp and fresh water swamp forests.

The monkeys may have to travel up to 2km per day in search of food. Depending on body size ~ some must eat up to 4 Kilograms a day in foliose foods and berries to sustain their activities.

As the density of the jungle decreases due to deforestation ‘their habitat becomes more sparse’ and even the trees that support them become few and far between ~ which means the monkeys ‘cannot jump from branch to branch’ and therefore ‘expend more energy’ to climb down and travel across the mangrove and back up ~ the branches again!

With the increase in ‘ecotourism’ ~ often ‘tourism pressure’ adds to this burden that they must deal with day by day…

We ask ‘where is the respite’ from ‘boats and photographers?’ Is there a better way to manage this precious ecosystem?


sparse branches, sparse support for monkeys, foraging pressure, nasalis larvatus, nasalis energy requirement, deforestation pressure, ecotourism pressure, maternal pressure, territorial pressure, climbing energy expense, ecotourism respite, ecosystem management

As a Marine Scientist, Underwater Photographer, Wildlife Conservation FilmMaker & emerging Explorer ~ Nicks’ recent film “Colours of the Gulf” documented the plight of whale sharks and other marine life in the aftermath of the Gulf oil spill.

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