First record of a dense colony of pregnant females of the Hilgendorf’s tube-nosed bat (<i>Murina hilgendorfi</i>), with special reference to their ecology in the Kyushu District, Japan

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  • 九州におけるテングコウモリ<i>Murina hilgendorfi</i>の妊娠個体群塊の初記録と若干の生態的知見
  • 九州におけるテングコウモリMurina hilgendorfiの妊娠個体群塊の初記録と若干の生態的知見
  • キュウシュウ ニ オケル テングコウモリ Murina hilgendorfi ノ ニンシン コタイグンカイ ノ ハツ キロク ト ジャッカン ノ セイタイテキ チケン

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Abstract

<p>The ceiling inside a tunnel, in southeastern Oita Prefecture, was utilized as the roost of Murina hilgendorfi and Myotis bombinus in the active period. As the result of our investigations from May until July, Mu. hilgendorfi formed a temporary dense colony in June. We captured the colony, consisting of 13 pregnant females in June 2016 and 2017. Females in the later stages of pregnancy moved into the tunnel and clustered tightly. Such dense colonies maintain high body temperatures, and may hasten the growth of their fetuses. After that, they leave the tunnel, and give birth to young and form nursery colonies elsewhere.</p>

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