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OBSERVATIONS ON THE MAINTENANCE MECHANISMS OF METAPOPULATIONS, WITH SPECIAL REFERENCE TO THE EARLY REPRODUCTIVE PROCESS OF THE MANILA CLAM RUDITAPES PHILIPPINARUM (ADAMS & REEVE) IN TOKYO BAY
Abstract To obtain basic ecological information on declining Tokyo Bay stocks of the Manila clam Ruditapes philippinarum, life history (including spawning, larval transport and settlement, and growthExpand
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Sex-Pheromone Activities of Synthetic 7-alken-11-ones for Male Peach Fruit Moths, Carposina niponensis WALSINGHAM (Lepidoptera: Carposinidae)
Active components of the sex pheromone of the peach fruit moth, Carposina niponensis WALSINGHAM, have been isolated and identified as (Z)-7-eicosen-11-one and (Z) or (E)-7-nonadecen-11-one.Expand
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Cold Resistance in Four Species of Beetles Overwintering in the Soil, with Notes on the Overwintering Strategies of Some Soil Insects
such studies compiled by SeMME (1982), for instance, a total of 123 species overwintering in a supercooling condition was cited, in which 82 species overwintered aboveground, 33 on the groundExpand
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Studies on nuclear polyhedrosis and granulosis viruses of the spotted cutworm, Xestia c-nigrum L. (Lepidoptera: Noctuidae).
The larvae of the spotted cutworm collected from grass fields at the beginning and the end of winter season were reared on an artificial diet in the laboratory. The larvae which died in the course ofExpand
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Seasonal changes of glycogen/trehalose contents, supercooling points and survival rate in mature larvae of the overwintering soybean pod borer Leguminivora glycinivorella
Abstract The mature larvae of the soybean pod borer Leguminivora glycinivorella, spend over 9 months (October-next August) in the inactive state until pupation down to 3 cm below the surface in soil.Expand
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