카니발리즘은 동물계에 널리 알려져 있다. 그러나 조류의 경우 둥지 조사가 아닌 야생에서 관찰되는 경우는 드물다. 이러한 행동은 불규칙적으로 발생할 뿐만 아니라 지속적 관찰이 거의 불가능하기 때문이다. 독수리의 카니발리즘은 2017년 1월 17일 월동지인 해남군 금호호 농경지 주변($34^{\circ}35^{\prime}58.25^{{\prime}{\prime}}N$, $126^{\circ}26^{\prime}57.64^{{\prime}{\prime}}E$) 한 무리의 독수리에서 관찰되었다. 관찰은 현장으로부터 20m 또는 60m 정도 떨어진 곳의 승용차 내에서 쌍안경을 통하여 이루어 졌고, 사진 촬영을 위해 망원렌즈가 장착된 카메라도 함께 사용되었다. 현장에서 취식을 하던 마지막 독수리가 떠난 후 먹이의 잔존물을 확인하였다. 독수리가 취식했던 장소에는 독수리의 몸깃, 두개골, 흉골, 양쪽 다리 등 독수리의 잔존물들이 발견되었다. 그리고 그 외에는 그들의 먹이가 되는 다른 동물의 어떠한 흔적도 발견되지 않았다. 본 연구는 독수리의 카니발리즘에 관한 최초 보고로 카니발리즘에 대한 세부적인 설명 및 그 행동에 영향을 미친 환경적 요인에 대하여 알아보고자 하였다.
카니발리즘은 동물계에 널리 알려져 있다. 그러나 조류의 경우 둥지 조사가 아닌 야생에서 관찰되는 경우는 드물다. 이러한 행동은 불규칙적으로 발생할 뿐만 아니라 지속적 관찰이 거의 불가능하기 때문이다. 독수리의 카니발리즘은 2017년 1월 17일 월동지인 해남군 금호호 농경지 주변($34^{\circ}35^{\prime}58.25^{{\prime}{\prime}}N$, $126^{\circ}26^{\prime}57.64^{{\prime}{\prime}}E$) 한 무리의 독수리에서 관찰되었다. 관찰은 현장으로부터 20m 또는 60m 정도 떨어진 곳의 승용차 내에서 쌍안경을 통하여 이루어 졌고, 사진 촬영을 위해 망원렌즈가 장착된 카메라도 함께 사용되었다. 현장에서 취식을 하던 마지막 독수리가 떠난 후 먹이의 잔존물을 확인하였다. 독수리가 취식했던 장소에는 독수리의 몸깃, 두개골, 흉골, 양쪽 다리 등 독수리의 잔존물들이 발견되었다. 그리고 그 외에는 그들의 먹이가 되는 다른 동물의 어떠한 흔적도 발견되지 않았다. 본 연구는 독수리의 카니발리즘에 관한 최초 보고로 카니발리즘에 대한 세부적인 설명 및 그 행동에 영향을 미친 환경적 요인에 대하여 알아보고자 하였다.
Cannibalism is a widely observed phenomenon in the animal kingdom. However, it is rarely found among birds outside nests in the wild because it occurs irregularly and it is almost impossible to monitor animal behavior constantly. On 17 January 2017, this behavior was directly observed from a group o...
Cannibalism is a widely observed phenomenon in the animal kingdom. However, it is rarely found among birds outside nests in the wild because it occurs irregularly and it is almost impossible to monitor animal behavior constantly. On 17 January 2017, this behavior was directly observed from a group of vultures feeding on a conspecific in a paddy field near Lake Geumho in Haenam-gun ($34^{\circ}35^{\prime}58.25^{{\prime}{\prime}}N$, $126^{\circ}26^{\prime}57.64^{{\prime}{\prime}}E$). It was observed and recorded with the binoculars and a camera with a telephoto lens in a car approximately 20 m (or 60 m) away from the site. The observer approached the feeding site after the last vulture had finished feeding and flown away and found remains of a vulture, including body feathers, skull, sterna keel, and both legs. It was the first report of cannibalism in Cinereous vulture Aegypius monachus in its overwintering grounds. The remaining skeleton was very fleshy, and the surrounding grass was wet with the blood of vulture. No other traces of a mammal or bird that could have been the vultures' prey were found. This report provides a detailed account of the events related to this rare observation and the causes that might have led to it.
Cannibalism is a widely observed phenomenon in the animal kingdom. However, it is rarely found among birds outside nests in the wild because it occurs irregularly and it is almost impossible to monitor animal behavior constantly. On 17 January 2017, this behavior was directly observed from a group of vultures feeding on a conspecific in a paddy field near Lake Geumho in Haenam-gun ($34^{\circ}35^{\prime}58.25^{{\prime}{\prime}}N$, $126^{\circ}26^{\prime}57.64^{{\prime}{\prime}}E$). It was observed and recorded with the binoculars and a camera with a telephoto lens in a car approximately 20 m (or 60 m) away from the site. The observer approached the feeding site after the last vulture had finished feeding and flown away and found remains of a vulture, including body feathers, skull, sterna keel, and both legs. It was the first report of cannibalism in Cinereous vulture Aegypius monachus in its overwintering grounds. The remaining skeleton was very fleshy, and the surrounding grass was wet with the blood of vulture. No other traces of a mammal or bird that could have been the vultures' prey were found. This report provides a detailed account of the events related to this rare observation and the causes that might have led to it.
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제안 방법
The behaviour of vultures were observed using 10× 30 binoculars (Swarovski CL) and photographed using a camera (Nikon D500) with a telephoto lens (Nikon AF-S Nikkor 400 ㎜ 1:2.8 DII), in order to record their behaviour.
대상 데이터
After the last vulture finished feeding and flew away, one vulture was still present, crouching at the site and unable to fly. The observer approached the feeding site and found remains of a vulture, including body feathers, skull, sterna keel, and both legs. The bones of wings and tail, as well as flight and tail feathers, and both feet were not pecked and eaten (Fig 2).
참고문헌 (22)
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