[Script Info]
Title: 
[Events]
Format: Layer, Start, End, Style, Name, MarginL, MarginR, MarginV, Effect, Text
Dialogue: 0,0:00:00.00,0:00:03.41,Default,,0000,0000,0000,,(역동적인 음악)
Dialogue: 0,0:00:03.41,0:00:05.01,Default,,0000,0000,0000,,키스톤은 원래
Dialogue: 0,0:00:05.01,0:00:08.46,Default,,0000,0000,0000,,돌로 된 아치 위에 있는 \N쐐기 모양 판을 뜻한다
Dialogue: 0,0:00:08.46,0:00:12.03,Default,,0000,0000,0000,,너가 키스톤을 제거한다면, 너는 모든 것들이 무너지는 위험을 겪을 수 있다
Dialogue: 0,0:00:12.03,0:00:17.08,Default,,0000,0000,0000,,그리고 몇몇의 생태계도 하나의 키스톤 종에 의해 동일한 방식으로 작동한다
Dialogue: 0,0:00:17.08,0:00:18.91,Default,,0000,0000,0000,,생물학에서 키스톤 종은
Dialogue: 0,0:00:18.91,0:00:22.13,Default,,0000,0000,0000,,그들의 크기나 수에 비춰볼때
Dialogue: 0,0:00:22.13,0:00:23.70,Default,,0000,0000,0000,,그들의 서식지에 불균형적으로 큰 영향을 준다
Dialogue: 0,0:00:23.70,0:00:26.84,Default,,0000,0000,0000,,그들의 평상시 활동들은 직접적이든 간접적이든
Dialogue: 0,0:00:26.84,0:00:28.43,Default,,0000,0000,0000,,다른 모든 종들에게 영향을 준다
Dialogue: 0,0:00:28.43,0:00:32.16,Default,,0000,0000,0000,,그리고 그들의 개체수 변화는 영양 종속을 유발할수 있다
Dialogue: 0,0:00:32.16,0:00:34.41,Default,,0000,0000,0000,,
Dialogue: 0,0:00:34.41,0:00:35.79,Default,,0000,0000,0000,,자주 놀라운 방식으로
Dialogue: 0,0:00:35.79,0:00:37.65,Default,,0000,0000,0000,,와이오밍주에 있는 옐로스톤 국립공원의 회색늑대를 봐라
Dialogue: 0,0:00:37.65,0:00:38.15,Default,,0000,0000,0000,,주로 사냥 때문에, 1930년대 초쯤에 그들의 개체수는 0으로 떨어졌다
Dialogue: 0,0:00:38.15,0:00:38.65,Default,,0000,0000,0000,,
Dialogue: 0,0:00:38.65,0:00:38.89,Default,,0000,0000,0000,,하지만 1995년에, 늑대들은 공원에 다시 들어왔고,
Dialogue: 0,0:00:38.89,0:00:39.14,Default,,0000,0000,0000,,늑대의 영향은 그 이후로 계속 관찰되었다
Dialogue: 0,0:00:39.14,0:00:39.63,Default,,0000,0000,0000,,그 영향을 들어내는 것은 매우 중요하다
Dialogue: 0,0:00:39.63,0:00:40.60,Default,,0000,0000,0000,,늑대의 부재와 reintroduction은
Dialogue: 0,0:00:40.60,0:00:41.60,Default,,0000,0000,0000,,옐로스톤을 대규모로 자주 놀라운 방식으로 바꿨다
Dialogue: 0,0:00:41.60,0:00:42.86,Default,,0000,0000,0000,,강물이 흐르는 방식까지
Dialogue: 0,0:00:42.86,0:00:46.58,Default,,0000,0000,0000,,하나는, 늑대가 엘크를 잡아먹고,엘크가 그것을 안다는 것이다
Dialogue: 0,0:00:46.58,0:00:49.14,Default,,0000,0000,0000,,그래서 늑대가 엘크의 영역에 있을때 그들의 행동은 바뀐다
Dialogue: 0,0:00:49.14,0:00:52.14,Default,,0000,0000,0000,,엘크는 보통 풀을 먹으면서 유목생활을 한다
Dialogue: 0,0:00:52.14,0:00:54.51,Default,,0000,0000,0000,,하지만 근처에 늑대가 존재하지 않자,\N엘크들은 방심하게 되었다
Dialogue: 0,0:00:54.51,0:00:58.13,Default,,0000,0000,0000,,한 곳에 정착해서\N많은 먹이를 먹는 것을 택했다
Dialogue: 0,0:00:58.13,0:01:00.16,Default,,0000,0000,0000,,엘크는 riverbank 아래쪽까지 \N먹이를 찾아 내려왔다
Dialogue: 0,0:01:00.16,0:01:03.31,Default,,0000,0000,0000,,늑대가 있었다면 근처에도\N오지 않았겠지만 말이다
Dialogue: 0,0:01:03.31,0:01:06.22,Default,,0000,0000,0000,,다양한 식물들을 조금씩 먹는것보다
Dialogue: 0,0:01:06.22,0:01:09.88,Default,,0000,0000,0000,,그들은 한번에 너무 많이 먹어서\N사시와 미루나무의 개체수가 줄었으며
Dialogue: 0,0:01:09.88,0:01:13.82,Default,,0000,0000,0000,,명금과 비버들이 필요로 하는\N강가 버드나무 또한 줄었다
Dialogue: 0,0:01:13.82,0:01:16.86,Default,,0000,0000,0000,,비버는 또한 키스톤 종이다
Dialogue: 0,0:01:16.86,0:01:19.27,Default,,0000,0000,0000,,그들의 특별한 공학적 재능 때문이다
Dialogue: 0,0:01:19.27,0:01:22.28,Default,,0000,0000,0000,,비버의 댐은 강의 수류를 늦춰서\N홍수를 예방한다
Dialogue: 0,0:01:22.28,0:01:25.29,Default,,0000,0000,0000,,또한 다양한 종에게 \N넓은 범위의 터전을 제공한다
Dialogue: 0,0:01:25.29,0:01:29.08,Default,,0000,0000,0000,,옐로우스톤에 늑대가 다시 등장했을 때부터
Dialogue: 0,0:01:29.08,0:01:32.84,Default,,0000,0000,0000,,버드나무는 자라났고
Dialogue: 0,0:01:32.84,0:01:34.99,Default,,0000,0000,0000,,비버 둥지는 한개에서\N아홉개로 늘어났으며
Dialogue: 0,0:01:34.99,0:01:37.31,Default,,0000,0000,0000,,명금 또한 번창하고 있다
Dialogue: 0,0:01:37.31,0:01:40.30,Default,,0000,0000,0000,,처음엔 엘크의 개체수가 줄어들었으나\N현재는 안정되었다
Dialogue: 0,0:01:40.30,0:01:43.84,Default,,0000,0000,0000,,들소의 개체수는 늘어났다
Dialogue: 0,0:01:43.84,0:01:47.14,Default,,0000,0000,0000,,아마도 엘크와의 경쟁이 줄었기 때문일것이다
Dialogue: 0,0:01:47.14,0:01:48.85,Default,,0000,0000,0000,,늑대의 장기적인 영향을\N측정하기 위한 연구가 진행중이다
Dialogue: 0,0:01:48.85,0:01:51.50,Default,,0000,0000,0000,,이 복잡한 생태계 속에서
Dialogue: 0,0:01:51.50,0:01:53.49,Default,,0000,0000,0000,,많은 절묘한 연결고리를 고려하며 말이다
Dialogue: 0,0:01:53.49,0:01:56.93,Default,,0000,0000,0000,,하지만 최상위 포식자로서
Dialogue: 0,0:01:56.93,0:01:58.42,Default,,0000,0000,0000,,
Dialogue: 0,0:01:58.42,0:02:01.20,Default,,0000,0000,0000,,
Dialogue: 0,0:02:01.20,0:02:04.67,Default,,0000,0000,0000,,
Dialogue: 0,0:02:04.67,0:02:07.06,Default,,0000,0000,0000,,
Dialogue: 0,0:02:07.06,0:02:08.80,Default,,0000,0000,0000,,
Dialogue: 0,0:02:08.80,0:02:10.46,Default,,0000,0000,0000,,
Dialogue: 0,0:02:10.46,0:02:14.29,Default,,0000,0000,0000,,
Dialogue: 0,0:02:14.29,0:02:16.33,Default,,0000,0000,0000,,
Dialogue: 0,0:02:16.33,0:02:19.49,Default,,0000,0000,0000,,
Dialogue: 0,0:02:19.49,0:02:22.82,Default,,0000,0000,0000,,
Dialogue: 0,0:02:22.82,0:02:25.61,Default,,0000,0000,0000,,
Dialogue: 0,0:02:25.61,0:02:28.88,Default,,0000,0000,0000,,
Dialogue: 0,0:02:28.88,0:02:32.29,Default,,0000,0000,0000,,
Dialogue: 0,0:02:32.29,0:02:35.14,Default,,0000,0000,0000,,
Dialogue: 0,0:02:35.14,0:02:39.23,Default,,0000,0000,0000,,
Dialogue: 0,0:02:39.23,0:02:41.87,Default,,0000,0000,0000,,
Dialogue: 0,0:02:41.87,0:02:43.71,Default,,0000,0000,0000,,
Dialogue: 0,0:02:43.71,0:02:46.52,Default,,0000,0000,0000,,
Dialogue: 0,0:02:46.52,0:02:49.02,Default,,0000,0000,0000,,
Dialogue: 0,0:02:49.02,0:02:53.08,Default,,0000,0000,0000,,
Dialogue: 0,0:02:53.08,0:02:56.66,Default,,0000,0000,0000,,
Dialogue: 0,0:02:56.66,0:02:59.40,Default,,0000,0000,0000,,
Dialogue: 0,0:02:59.40,0:03:03.00,Default,,0000,0000,0000,,
Dialogue: 0,0:03:03.00,0:03:07.12,Default,,0000,0000,0000,,
Dialogue: 0,0:03:07.12,0:03:09.48,Default,,0000,0000,0000,,
Dialogue: 0,0:03:09.48,0:03:14.53,Default,,0000,0000,0000,,
Dialogue: 0,0:03:14.53,0:03:18.10,Default,,0000,0000,0000,,
Dialogue: 0,0:03:18.10,0:03:21.15,Default,,0000,0000,0000,,
Dialogue: 0,0:03:21.15,0:03:25.09,Default,,0000,0000,0000,,
Dialogue: 0,0:03:25.09,0:03:29.70,Default,,0000,0000,0000,,
Dialogue: 0,0:03:29.70,0:03:32.17,Default,,0000,0000,0000,,
Dialogue: 0,0:03:32.17,0:03:36.46,Default,,0000,0000,0000,,
Dialogue: 0,0:03:36.46,0:03:38.88,Default,,0000,0000,0000,,
Dialogue: 0,0:03:38.88,0:03:41.72,Default,,0000,0000,0000,,
Dialogue: 0,0:03:41.72,0:03:44.02,Default,,0000,0000,0000,,
Dialogue: 0,0:03:44.02,0:03:46.85,Default,,0000,0000,0000,,
Dialogue: 0,0:03:46.85,0:03:50.37,Default,,0000,0000,0000,,
Dialogue: 0,0:03:50.37,0:03:53.100,Default,,0000,0000,0000,,
Dialogue: 0,0:03:53.100,0:03:56.52,Default,,0000,0000,0000,,
Dialogue: 0,0:03:56.52,0:03:57.98,Default,,0000,0000,0000,,
Dialogue: 0,0:03:57.98,0:04:01.01,Default,,0000,0000,0000,,
Dialogue: 0,0:04:01.01,0:04:02.15,Default,,0000,0000,0000,,
Dialogue: 0,0:04:02.15,0:04:05.53,Default,,0000,0000,0000,,
Dialogue: 0,0:04:05.53,0:04:08.71,Default,,0000,0000,0000,,
Dialogue: 0,0:04:08.71,0:04:10.80,Default,,0000,0000,0000,,
Dialogue: 0,0:04:10.80,0:04:14.42,Default,,0000,0000,0000,,
Dialogue: 0,0:04:14.42,0:04:17.49,Default,,0000,0000,0000,,
Dialogue: 0,0:04:17.49,0:04:21.57,Default,,0000,0000,0000,,
Dialogue: 0,0:04:21.57,0:04:25.03,Default,,0000,0000,0000,,
Dialogue: 0,0:04:25.03,0:04:28.26,Default,,0000,0000,0000,,
Dialogue: 0,0:04:28.26,0:04:31.55,Default,,0000,0000,0000,,
Dialogue: 0,0:04:31.55,0:04:35.31,Default,,0000,0000,0000,,
Dialogue: 0,0:04:35.31,0:04:39.34,Default,,0000,0000,0000,,
Dialogue: 0,0:04:39.34,0:04:41.53,Default,,0000,0000,0000,,
Dialogue: 0,0:04:41.53,0:04:43.55,Default,,0000,0000,0000,,
Dialogue: 0,0:04:43.55,0:04:45.69,Default,,0000,0000,0000,,
Dialogue: 0,0:04:45.69,0:04:47.79,Default,,0000,0000,0000,,
Dialogue: 0,0:04:47.79,0:04:50.25,Default,,0000,0000,0000,,
Dialogue: 0,0:04:50.25,0:04:53.81,Default,,0000,0000,0000,,
Dialogue: 0,0:04:53.81,0:04:56.01,Default,,0000,0000,0000,,
Dialogue: 0,0:04:56.01,0:04:57.79,Default,,0000,0000,0000,,
Dialogue: 0,0:04:57.79,0:04:59.66,Default,,0000,0000,0000,,
Dialogue: 0,0:04:59.66,0:05:02.22,Default,,0000,0000,0000,,
Dialogue: 0,0:05:02.22,0:05:04.35,Default,,0000,0000,0000,,
Dialogue: 0,0:05:04.35,0:05:07.05,Default,,0000,0000,0000,,