| Budget Amount *help |
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2011: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2010: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2009: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
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| Research Abstract |
(a) We found that the peak of mate guard behavior by males several days before laying date of their pairs. When mating with males having small red patch size in their throat(that means the male convey relatively inferior genes in the perspective of survival), the females escaped from their male mates and sought extra-pair mates. Actually the broods of such females contained extra-pair offspring. However, the intensity of male mate guards was not correlated with the size of their throat patch or the degree of female infidelity. Provisioning effort of males was negatively correlated with the degree of female infidelity.(b) Testosterone level in feces from three pairs peaked at several days before laying dates, which suggests that such hormonal level may affect mating behavior of male and females.
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