The Genuine Article,
3501 Market St.,
Philadelphia, Pa. 19104.
BY PETER D. MOORE
Department of Biology
King’s College London
London, U.K.
" Modern kelp distribution shows that their center of diversity is in the North Pacific. Animals that graze kelps appeared in the late Cenozoic but may have been suppressed in the North Pacific by predatory sea otters, allowing kelp diversification.
J.A. Estes, RD. Steinberg, “Predation, herbivory, and kelp evolution,” Paleobiology, 14 (1), 19-36, Winter 1988.
" Are fish-eating birds really a drain on the stocks of commercial fresh-water fisheries? Probably not. A study of the heron suggests that it consumes a maximum of 8% of the total fish yield, depending upon stocking density.
D. Draulaus, “Effects of fish-eating birds on freshwater fish stocks: an evaluation,” Biological Conservation, 44 (4), 251-63, 1988.
" Gas flow through the air channels of reed roots has been investigated by applying pressure flow. Airways ...
