Climate and change in clines for melanism in the two-spot ladybird, Adalia bipunctata (Coleoptera: Coccinellidae)

被引：50
|
作者：
de Jong, PW [1 ]
Brakefield, PM [1 ]
机构：
[1] Leiden Univ, Inst Evolut & Ecol Sci, Sect Evolut Biol, NL-2300 RA Leiden, Netherlands
来源：
PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES | 1998年 / 265卷 / 1390期
关键词：
cline; melanism; Adalia;
D O I：
10.1098/rspb.1998.0261
中图分类号：
Q [生物科学];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
The polymorphic two-spot ladybird, Adalia bipunctata, shows clinal variation in the frequency with which melanic and non-melanic morphs occur. Here we show that the dines in melanism in The Netherlands have changed over the past two decades: they have become shallower. This change has coincided with an increase in local ambient spring temperatures at most meteorological stations close to the sampling sites. The potential contribution of thermal melanism to the change in the shape of the dines is discussed.
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页码：39 / 43
页数：5
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