| Budget Amount *help |
¥5,590,000 (Direct Cost: ¥4,300,000、Indirect Cost: ¥1,290,000)
Fiscal Year 2014: ¥260,000 (Direct Cost: ¥200,000、Indirect Cost: ¥60,000)
Fiscal Year 2013: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Fiscal Year 2012: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
|
|---|
| Outline of Final Research Achievements |
The study aimed to assess whether there are variation in the external morphological trais, acoustic features and genetic structure of Ryukyu Scops Owls among major groups of islands and across a large area comprising a biogeographical barrier (the Kerama Gap). All the three aspects was clearly divided into two groups, north and south of the Kerama Gap. The gap acted as a biogeographical barrier and contributed to the differentiation between the two major island-groups years. It is likely that this differences developed during the fragmentation of a widespread ancestral population by vicariant isolating events in 1.5 million. It was also detected that populations on the small islands and Okinawa Island north of the Kerama Gap contradicts this concept of the barrier. The data imply that individuals south of the Kerama Gap have established populations north of the barrier in an ecological time scale. Introgressions has been secondly occurred on Okinawa Island.
|
