Occurrence and conservation of the Vulnerable titi monkey <i>Callicebus melanochir</i> in fragmented landscapes of the Atlantic Forest hotspot

Abstract Tropical forest hotspots have a high diversity of species but lost &gt; 70% their original vegetation cover and are characterized by multitude small isolated fragments. Paradoxically, conservation actions in these areas still mainly focused on protection large tracts forests, strategy now infeasible because the area remnants. Here we use Vulnerable black-handed titi monkey Callicebus melanochir as model to study effects habitat loss, fragmentation degradation arboreal mammals provide insights for science-driven fragmented landscapes tropical hotspots. We surveyed 38 Atlantic Forest fragments Bahia State, Brazil assessed patch area, quality visibility, landscape connectivity occurrence our species. Patch was single best explaining occurrence. Nonetheless, connectivity, positively affect In addition quality, visibility useful predicting encourage assessment (based remotely sensed indices) digital elevation models) improve discoverability mammal populations selection purposes across Large remnants scarce therefore require baseline data support management