【正文】
24 Paula Brown 1979 “Change and the Boundaries of the System in Highland New Guinea: The Chimbu” pp. 235251 in and Social and Ecological Systems. London Academic Press. E x pa n s i o n a n d mi gr a t i o n W a r I n t e r gr o up c o m pe t i t i o n a n d c o nf li c t L a n d o r f o o d s h o r t a ge Na t ur a l c a t a s tr o ph e s e p i de mi c s P o pul a t i o n gr o w t h A gr i c u l t ur a l i n t e n s if i c a t i o n a n d p i g pr o duc t i o n L o c a l gr o up s o l i da r i t y F e s t i v a l e x c h a n ge R a ppa po r t s ugge s t s r i t ua l c y c l e r e s t r i c t s o v e r s to c ki n g p i g s Ha r r i s s ugge s t s m a l e wa r r i o r pr e f e r e n c e i nh i b i t s bi r t h r a t e . 25 Paula Brown 1979 “Change and the Boundaries of the System in Highland New Guinea: The Chimbu” pp. 235251 in and Social and Ecological Systems. London Academic Press. E x pa n s i o n a n d mi gr a t i o n W a r I n t e r gr o up c o m pe t i t i o n a n d c o nf li c t L a n d o r f o o d s h o r t a ge Na t ur a l c a t a s tr o ph e s e p i de mi c s P o pul a t i o n gr o w t h A gr i c u l t ur a l i n t e n s if i c a t i o n a n d p i g pr o duc t i o n L o c a l gr o up s o l i da r i t y F e s t i v a l e x c h a n ge R a ppa po r t s ugge s t s r i t ua l c y c l e r e s t r i c t s o v e r s to c ki n g p i g s Ha r r i s s ugge s t s m a l e wa r r i o r pr e f e r e n c e i nh i b i t s bi r t h r a t e . S a hli ns s ugge s t ‘ bi g m a n ’ l e a d e r s hi p li mi t s l a b o ur m o bil i s a t i o n