00299nam a2200097Ia 4500008004100000082002200041100003600063245005200099260004200151300000800193140113s9999    xx            000 0 und d  a047.1:574.48   L8  a"Johnston, Richard.F. et al�"  aAnnual Review of Ecology and Systematics -Vol.8  a1978bAnnual Reviews Inc.cCalifornia  a618