日本産花蜂の生態学的研究IX : 蜂と花との相互関係(その2)
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概要
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To understand the exact relation between bees and flowers, further biological studies have been made in ten observation areas described in the previous paper. In this paper the following phenomena are taken into consideration. 1) From the studies on the correlation between bees and flowers in each area, flowering plants are distinguished into two types, those visited by a large number of bee species and those by a small number. From April to June, the flowering plants visited by the largest number of bee species are as follows : Brassica campestris subsp.>Astragalus sinicus> Ranunculus acris. But some differences are recognized in the personnel or species-construction of visitors to each flower species. On the other hand, the species which visits the greatest number of flowering plant species during April to June is Halictus scitulus, followed by Anthophora acervolum villosula>Bombus diversus>Bombus ardens. In other words, these bees are the most dominant pollinators in this district. But there are some differences between two kinds of species-construction of flowering plants visited by the bees belonging to Halictidae, and by the bees belonging to Bombidae or Anthophoridae (Table 1). 2) The seasonal transition of the species of visitors to each species of flowering plants were studied from the standpoint of both quantity and quality (Tables 2-7). For each species of flowering plants, is shown the period of time when the respective species is visited by the largest number of bee species (Table 2). From the total records on the respective species of bee which visits successively to a definite species of flower (Table 3), it is supposed that there is a close specific correlation between certain bees and flowers for a long time. Moreover the details are recorded on seasonal transition of flowers visited by bees with fairly long active life and that of bees with fairly long blooming period (Tables 6 and 7).
- 日本生態学会の論文
- 1959-12-01
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