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Residues of DDE in kestrel eggs collected near Ithaca, New York, averaged 35, 42, 33 and 37 p.p.m. in 1969, 1970, 1971 and 1972, respectively. Based o...Read more
Riparian trees regulate aquatic ecosystem processes, such as inputs of light, organic matter and nutrients, that can be altered dramatically when thes...Read more
Recent declines in honeybee populations have focused attention on the potential for unmanaged insects to replace them as pollinators of food crops. Th...Read more