ised ▁by ▁N ua ulu ▁as ▁a ▁single ▁entity , ▁it ▁contrast s ▁in ▁different ▁ways ▁with ▁other ▁land ▁types ▁depending ▁on ▁context . ▁The ▁N ua ulu ' s ▁concept ▁of ▁their ▁environment ▁is ▁not ▁one ▁of ▁space ▁in ▁which ▁they ▁traverse , ▁but ▁more ▁like ▁a ▁series ▁of ▁fixed ▁points ▁to ▁which ▁particular ▁cl ans ▁and ▁individuals ▁are ▁inter connected . ▁ ▁These ▁inter conne ctions ▁are ▁practical ▁imp lications ▁between ▁social ▁and ▁environmental ▁and ▁can ▁be ▁very ▁important ▁( E ll en , ▁ 1 9 9 3 ). ▁ ▁Dr . ▁Ellen ' s ▁main ▁view , ▁which ▁is ▁perhaps ▁the ▁most ▁important , ▁is ▁that ▁ind igen ous ▁knowledge ▁and ▁practices ▁must ▁be ▁understood ▁context ually . ▁ ▁Out s iders ▁must ▁begin ▁to ▁separate ▁pre jud ices ▁about ▁our ▁environment ▁and ▁we ▁must ▁apply ▁formal ▁knowledge ▁to ▁different ▁situations . ▁ ▁Ind igen ous ▁knowledge ▁of ▁the ▁rain for est ▁is ▁always ▁situ ational ▁and ▁var ies ▁and ▁ever - ch anging ▁depending ▁on ▁the ▁situation ▁at ▁hand ▁( E ll en , ▁ 1 9 9 4 ). ▁ ▁Rec ent ▁publishing ▁Roy ▁Ellen ▁focus es ▁on ▁the ▁importance ▁of ▁ind igen ous ▁e colog ical ▁knowledge ▁and ▁practices ▁and ▁collabor ations ▁between ▁local ▁and ▁outside ▁knowledge ▁effect ▁and ▁ultimately ▁construct ▁culture ▁and ▁how ▁society ▁functions . ▁This ▁paper ▁will ▁cover ▁some ▁of ▁Roy ▁Ellen ' s ▁more ▁recent ▁publishing ▁( r anging ▁from ▁ 1 9 9 7 – 2 0 0 6 ) ▁in