Threats
Extensive habitat destruction and
hunting have caused its serious decline and range contraction. The
species's complex pattern of habitat- and resource-use magnifies the
risks it faces. In 1988, forest cover was as low as 4% on
Negros
, 24% on
Luzon
and 29% on
Mindanao
, and just 30 km2
of closed-canopy forest remained on
Mindoro
. Moreover, most
remaining lowland forest is leased to logging concessions and mining
applications. On
Luzon
, illegal logging is common at the key site of Angat Dam. On
Mindanao
, forest is
being cleared and re-planted with exotic trees for paper production at
the key site of Bislig. Its congregatory habits facilitate hunting, with
large numbers caught during the 1950s on
Luzon
.
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