Life history traits of white-spotted charr in an alpine environment: Implications for local adaptation along an altitude gradient
Life history traits of white-spotted charr in an alpine environment: Implications for local adaptation along an altitude gradient
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高山环境中白点红点鲑的生活史特征：对沿海拔梯度局部适应的影响
DOI：
10.1134/s0032945213100147
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发表时间：
2013
影响因子：
0.7
通讯作者：
Hirose K
中科院分区：
文献类型：
--
作者：
Tsuboi J;Yamamoto S;Morita K;Mitsui K;Ashizawa A;Hirose K
作为局部适应的实例，我们比较了分离于高山环境(海拔2000m以上)和正常环境(约1000m)的富士河流域靠近其分布南端(35°N，138°E)的白斑沙鼠的生活史特征。结果表明，高山溪流中的白斑鱼生长速度较慢，寿命较长，产卵季节较早，成熟时年龄较大，体型较大。我们得出结论，高山溪流中的木炭是通过特殊的生活史特征来适应低水温和长时间饥饿期的。
As a case study of local adaptation, we compared the life history traits of white-spotted charrSalvelinus leucomaenisbetween populations isolated in an alpine environment (altitude above 2000 m) and a normal environment (ca. 1000 m) in the Fuji River basin, near the southern limit of its distribution (35° N, 138° E). Our results showed that white-spotted charr in alpine streams had lower growth rate, longer lifespan, earlier spawning season, and were older and larger size at maturity, compared with those habiting a normal mountain stream. We concluded that charr in alpine streams were adapted to low water temperatures and long starvation periods by specialized life history traits.