"Our focus is to get general statistics for better traffic management and population monitoring," he said.

“我们的重点是获得总体统计数据以便更好地管理交通和监测人口，”他说。

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In addition to population monitoring, volunteers check for breakage in the 2m-high, 20km-long, 1m-deep anti-dingo and dog fence that surrounds the park, and fill up water containers placed around the reserve for the wombats each day.

BBC: Protecting a wombat species that is as fast as Usain Bolt

Accurate knowledge, and monitoring, of the population of banknotes could be a powerful tool.

ECONOMIST: Money of the future may almost literally talk

Only four of the 56 species studied in the UK Butterfly Monitoring Scheme saw an increase in population size.

BBC: Butterflies suffered in cold and wet 2012, says charity