id	keyword
alces-224	moose
alces-224	alces
alces-224	et al
alces-224	new
alces-224	hampshire
alces-224	maine
alces-224	calf
alces-224	productivity
alces-224	survival
alces-224	winter
alces-224	rate
alces-224	calving
alces-224	calves
alces-224	population