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Biological husbandry and the "nitrogen problem"
(Biological Agriculture and Horticulture, 1986)
Since 1978, the author has been conducting research into the theory and practice of biological husbandry in collaboration with a farmer who stopped using pesticides and mineral fertilizers in 1976. Eggs are exported from ...
Survey of Vegetated Areas and Musk-Ox Populations in East-Central Ellesmere Island
(1986-03)
No abstract available.
Symmetry, change, perturbation, and observing mode in natural communities
(1986)
Like a kaleidoscope, nature presents continuously fleeting images of natural communities. It has been difficult to discern patterns of community structure in these elusive images. For both theoretical and applied considerations, ...