Diversity of drosophilid flies on Kume‐jima, a subtropical island: comparison with diversity on Iriomote‐jima
Diversity of drosophilid flies on Kume‐jima, a subtropical island: comparison with diversity on Iriomote‐jima
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DOI：
10.1111/j.1479-8298.2007.00250.x
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发表时间：
2008-03
影响因子：
0.9
通讯作者：
M. Kondo;M. Kimura
中科院分区：
文献类型：
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作者：
M. Kondo;M. Kimura
研究了位于琉球群岛中部的亚热带岛屿久米岛的果蝇区系，并与位于琉球群岛西南端的伊络莫特岛的果蝇区系进行了比较。kumme‐jima的种数为37种，远少于Iriomote‐jima的95种。kumme - jima的亚热带物种数量明显减少，这可能是由于该岛与亚热带物种来源（如台湾）的距离比Iriomote - jima远，或者kumme - jima的冬季温度略低（约1.5°C）。食用菌的数量在久米岛也明显减少，但食用果的数量仅略有减少。在Kume - jima，真菌似乎不那么丰富，因为森林较小，导致真菌食用者数量较少。分析了香蕉饵饵“固定式”捕蝇器捕获物种的生境选择和季节特征。在两个岛上发生的物种，生境选择差异不大，但某些物种的季节性差异明显。
The drosophilid fauna was studied on Kume‐jima, a subtropical island located in the central part of the Ryukyu archipelago, and compared with the fauna of Iriomote‐jima located near the south‐western end of the archipelago. The number of species collected from Kume‐jima was 37, much fewer than that recorded from Iriomote‐jima (95 species). The number of subtropical species was particularly reduced on Kume‐jima, possibly owing either to this island being more distantly located from the sources of subtropical species (e.g. Taiwan) than Iriomote‐jima and/or to winter temperature on Kume‐jima being a little lower (by approximately 1.5°C). The number of fungus‐feeders was also much reduced on Kume‐jima, but the number of fruit‐feeders was only slightly reduced. On Kume‐jima, fungi seem to be less abundant because forests are smaller, resulting in a smaller number of fungus‐feeders. Habitat selection and seasonality were analyzed for species collected using “retainer” type traps baited with banana. For species occurring on both islands, habitat selection differed little between the two islands, whereas the seasonality of some species differed markedly between the two islands.