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During the winter of 1976-77, few pupae of Delia brassicae (Wied.) were removed by predators from either natural or introduced populations of pupae bu...
Read moreEmergence data on adults of Delia radicum from overwintering dormant pupae were used to develop a temperature-driven stage dynamics model to analyse d...
Read moreIn laboratory studies in Massachusetts with a synthetic diet and the foliage of 4 forest trees (grey birch (Betula populifolia), white oak (Quercus al...
Read moreThe following is based largely on the authors' summary. The population dynamics of two species of Psychodain a small experimental percolating filter s...
Read moreField and laboratory trials were conducted in southern England to study the effects of seeding density and row spacing of oats on colonisation of seed...
Read moreThe following is based almost entirely on the author's summary. In investigations in southern England, nearly twice as many eggs were laid by females ...
Read moreMany Lepidoptera species are declining to the point that active measures such as reinforcements and reintroductions are necessary to maintain viable p...
Read moreCommonness and rarity among British butterflies were examined by relating features of biology and ecology to geographical distribution. No single attr...
Read moreThe abundance of several species of Forcipomyia, known to be pollinators of cacao, increased markedly in 1 cacao farm in Costa Rica when discs of rott...
Read moreIn a study at Craigellachie Forest, Scotland, during 1978-79, covering 5 soil types and 5 provenances planted in the early 1960s, pupal numbers of Pan...
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