00302nam a2200097Ia 4500008004100000082002400041100003600065245005300101260004200154300000800196140113s9999    xx            000 0 und d  a047.1:577.4   M1.12  a"Johnston, Richard.F. et al�"  aAnnual Review of Ecology and Systematics -vol.12  a1981bAnnual Reviews Inc.cCalifornia  a470