Which woolly monkey species exhibits a geographic bottleneck, being confined to a high-altitude belt within a single country?

Answer

Yellow-tailed Woolly Monkey (Oreonax flavicauda)

The Yellow-tailed Woolly Monkey, Oreonax flavicauda, demonstrates one of the most geographically concentrated distributions among New World monkeys. Unlike its cousins which share the broad Amazon lowland range across three nations, this species is strictly confined to the cooler, wetter cloud forests found at high elevations within Northern Peru. This severe geographical bottleneck makes its location critically limited by altitude and specific moisture gradients, rendering it far more vulnerable to localized threats.

Which woolly monkey species exhibits a geographic bottleneck, being confined to a high-altitude belt within a single country?
locationhabitatmammalWoolly MonkeyPrimate