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765 Secondclass postage paid at Jamaica New York 11431
Status and Agroecological Aspects of Optimization of Orchard Cultivated
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12 issues according activity amount analysis animals anthropogenic average bank voles biological biomass birds bluethroats body weight changes chernozems clutches coefficient common shrew communities concentration correlation crops density determined distribution Doklady Dol'nik dynamics ecological ecosystems eggs energy budget energy expenditures enzymes evaluate experimental factors feeding females fish forest grasses growth Gulf of Peter habitats harp seals increase indices individuals investigations Lapland buntings larvae Leningrad male mammals mink Moscow mussels natural Nauk Nauka nesting nitrogen Oblast observed orchard organism Original article submitted period phytomass plant Plenum Publishing Corporation pollution population population density predators production radionuclides rats region reproductive rodents Russian samples sea urchins seasonal Siberian weasel significant soil species spruce steppe structure susliks Table temperature territory Translated from Ekologiya USSR variability vegetation vole White Sea whitefish willow grouse Zhurnal zone