WCS researcher Bart Schleyer uses
telemetry to locate a radio-collared
tiger. Radio collars allow researchers to
track tigers year-round, learning
about how tigers live, and what they
need to survive.
- After tracking over 60 radio-collared tigers since 1992, WCS has
uncovered a wealth of new information about tigers at the northern
limits of their range.
- Approximately 80% of tiger mortality in
Russia is caused by humans. Protection from human-induced mortality
would increase tiger density and reproduction, as tigresses could live
long enough to ensure their offspring’s reproductive success.
produce on average 2.4 cubs every 21 months, but about 50% of cubs die
before reaching one year of age (many die when their mothers are
- Each female tiger requires about 250-450 km2;
therefore the largest protected area within the tiger range
(Sikhote-Alin Reserve, 4,000 km2) shelters only 10-15 tigresses.
deer, wild boar and sika deer make up about 85% of the tiger's diet, so
managing these species is vital to tiger conservation.
- Dispersing young tigers may wander over 200 km in search of their own territory.
- Amur tiger mortality is greater in areas with roads than in remote roadless areas.
Back to the Siberian Tiger Project main page.