id	keyword
alces-1953	moose
alces-1953	distance
alces-1953	sampling
alces-1953	isle
alces-1953	royale
alces-1953	et al
alces-1953	abundance
alces-1953	alces
alces-1953	model
alces-1953	population
alces-1953	estimate
alces-1953	park
alces-1953	transects