ogy ▁and ▁the ▁vir ul ence ▁of ▁each ▁of ▁these ▁species ▁need ▁to ▁be ▁re - evalu ated ▁to ▁dev ise ▁appropriate ▁control ▁strateg ies . ▁Ex amples ▁are ▁crypt ic ▁species ▁in ▁the ▁mal aria ▁vector ▁genus ▁of ▁mos qu ito , ▁An oph eles , the ▁fung i ▁causing ▁crypt oc oc cos is , ▁and ▁sister ▁species ▁of ▁B act roc era ▁ty ron i , ▁or ▁the ▁Queensland ▁fruit ▁fly . ▁Cur iously , ▁that ▁p est ▁is ▁ind ist ingu ish able ▁from ▁two ▁sister ▁species ▁except ▁that ▁B . ▁ty ron i ▁inf lic ts ▁w ides p read , ▁dev ast ating ▁damage ▁to ▁Australian ▁fruit ▁cro ps , ▁but ▁the ▁sister ▁species ▁do ▁not . ▁ ▁Conserv ation ▁bi ology ▁When ▁a ▁species ▁is ▁found ▁to ▁be ▁several ▁ph y log en et ically ▁distinct ▁species , ▁each ▁typically ▁has ▁smaller ▁distribution ▁ranges ▁and ▁population ▁sizes ▁than ▁had ▁been ▁reck oned . ▁The ▁different ▁species ▁can ▁also ▁differ ▁in ▁their ▁e col ogy , ▁such ▁as ▁by ▁having ▁different ▁bre eding ▁strateg ies ▁or ▁habitat ▁requirements , ▁which ▁must ▁taken ▁into ▁account ▁for ▁appropriate ▁management . ▁For ▁example , ▁g ira ffe ▁populations ▁and ▁sub species ▁differ ▁gen et ically ▁to ▁such ▁an ▁extent ▁that ▁they ▁may ▁be ▁considered ▁species . ▁Although ▁the ▁g ira ffe , ▁as ▁a ▁whole , ▁is ▁not ▁considered ▁to ▁be ▁threatened , ▁if ▁each ▁crypt ic ▁species ▁is ▁considered ▁separately , ▁there ▁is ▁a ▁much ▁higher ▁level ▁of ▁threat