POPULATION-DYNAMICS OF MALE EUGLOSSINE BEES IN AMAZONIAN FOREST FRAGMENTS
POPULATION-DYNAMICS OF MALE EUGLOSSINE BEES IN AMAZONIAN FOREST FRAGMENTS
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DOI：
10.2307/2388742
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发表时间：
1987-06-01
期刊：
影响因子：
2.1
通讯作者：
POWELL, GVN
中科院分区：
文献类型：
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作者：
POWELL, AH;POWELL, GVN
在巴西亚马逊马瑙斯附近的地点，我们测量了森林破碎化对雄性绿舌蜂种群的影响。 15种雄性绿舌蜂 [Eulaema meriana, E. moesaryi, E. bobiformis, Euglossa viridis, E. iehalybeata, E. iopyratha, E. stilbonata, E. prasina, E. gaianii, E. crassipunctata, E. augaspis, E. piliventris, Exaerete额叶、Eufriesea laniventris、E. xantha 和 E. purpurata.] 确定了连续森林的三种化学引诱剂；隔离 1、10 和 100 公顷森林碎片；和一个已清理的区域。对于大多数物种来说，尽管分隔碎片和连续森林的开口往往很窄（只有 100 m），但访问率随着碎片大小而下降。各个片段的分离前和分离后比较表现出相同的趋势。被空地中的气味吸引的蜜蜂物种与森林中的气味不同，这表明这些空地物种为森林授粉的潜力很小。这些结果讨论了森林破碎化对植物物种丰富度的影响以及自然和商业森林保护区的设计。
At sites near Manaus, Amazonas, Brazil we measured the impact of forest fragmentation on populations of male euglossine bees. The visitation rates of 15 species of male euglossine bees [Eulaema meriana, E. moesaryi, E. bombiformis, Euglossa viridis, E. iehalybeata, E. iopyrrha, E. stilbonata, E. prasina, E. gaianii, E. crassipunctata, E. augaspis, E. piliventris, Exaerete frontalis, Eufriesea laniventris, E. xantha, and E. purpurata.] to three chemical attractants were determined for continuous forest; isolated 1, 10 and 100 ha forest fragments; and a cleared area. For most species, visitation rate declined with fragment size, even though openings separating fragments and continuous forest tended to be narrow (as little as 100 m). Pre- and post-isolation comparisons for individual fragments exhibited the same trend. Bee species attracted to scents in the clearing differed from those of the forest indicating there was little potential for forest pollination by these clearing species. These results are discussed with respect to the impact of forest fragmentation on plant species richness and the design of natural and commercial forest reserves.