, ▁the ▁island ▁has ▁been ▁admin ister ed ▁as ▁part ▁of ▁K ag osh ima ▁Pref ect ure . ▁ ▁In ▁ 2 0 1 7 , ▁Y ak ush ima ▁was ▁struck ▁by ▁Ty ph oon ▁Nor u ▁causing ▁one ▁death . ▁ ▁Dem ograph ics ▁and ▁econom ics ▁The ▁population ▁of ▁Y ak ush ima ▁reached ▁a ▁peak ▁in ▁ 1 9 6 0 ▁with ▁ 2 4 , 0 1 0 ▁inhabitants . ▁It ▁there after ▁decl ined ▁until ▁about ▁ 1 9 9 5 , ▁but ▁has ▁subsequently ▁stabil ized ▁at ▁just ▁over ▁ 1 3 , 0 0 0 ▁inhabitants . ▁ ▁Trad itionally , ▁the ▁economic ▁main st ays ▁of ▁the ▁population ▁were ▁forest ry ▁and ▁the ▁export ▁of ▁wood ▁products ▁( pr inci p ally ▁ced ar ▁roof ▁sh ing les ), ▁and ▁commercial ▁fish ing . ▁ ▁Cult iv ation ▁of ▁or anges ▁and ▁tea , ▁the ▁dist illing ▁of ▁sh ō ch ū , ▁and ▁tour ism ▁are ▁now ▁the ▁main ▁sources ▁of ▁income . ▁ ▁Flora ▁and ▁fa una ▁Y ak ush ima ▁contains ▁one ▁of ▁the ▁largest ▁tract s ▁of ▁existing ▁N anse i ▁Islands ▁subt rop ical ▁ever green ▁for ests , ▁and ▁end anger ed ▁habitat ▁e cor eg ion . ▁ ▁The ▁only ▁large ▁animals ▁ind igen ous ▁to ▁the ▁island ▁are ▁red - bottom ed ▁mac a ques ▁( Y ak ush ima ▁mac aque ) ▁and ▁a ▁variety ▁of ▁s ika ▁de er ▁( y ak ush