Size and seasonal temperature in free-ranging Drosophila subobscura
Size and seasonal temperature in free-ranging Drosophila subobscura
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DOI：
10.1016/s0306-4565(99)00096-0
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发表时间：
2000-08-01
影响因子：
2.7
通讯作者：
Huey, RB
中科院分区：
文献类型：
--
作者：
Kari, JS;Huey, RB
不同的外温动物的身体大小与实验室中的发育温度呈负相关。本研究对两个种群（俄勒冈州和华盛顿）的黑腹果蝇进行了翅长的季节变化监测。subobscura，于20世纪70年代末在太平洋西北部引入。翅长随季节变化，夏季最短。然而，在华盛顿，翅膀的长度在春天最长，而不是冬天。翅长与平均环境温度呈曲线反比关系，这与先前对果蝇的一些研究一致。冬中D. subobscura可能不是最大的，因为极低的温度会抑制大小，或者因为冬季收集的苍蝇实际上是前一个秋天出生的，当时发育温度更温和。(C)2000爱思唯尔科技有限公司版权所有。
Body size of diverse ectotherms is inversely related to developmental temperature in the laboratory. We monitored seasonal variation in wing length of two populations (Oregon, Washington) of D. subobscura, which was introduced in the Pacific Northwest in the late 1970s. Wing length varied seasonally and was shortest in summer. In Washington, however, wing length was longest in spring, not winter. Wing length was inversely and curvilinearly related to mean ambient temperature, as in a few previous studies of drosophilids. Mid-winter D. subobscura might not be the largest either because extremely low temperatures depress size or because flies collected in winter were in fact born the previous autumn, when developmental temperatures were more moderate. (C) 2000 Elsevier Science Ltd. All rights reserved.