Wing and body size polymorphism in populations of the stonefly Arcynopteryx dichroa McL. (Plecoptera: Perlodidae) in the Ural Mountains, Russia

Polar research

Olga A. Loskutova¹  Lidia A. Zhiltzova² 

[1] Institute of Biology Komi Scientific Center, Ural Branch of the Russian Academy of Sciences, Kommunisticheskaya 28, Syktyvkar 167982, Russia;Zoological Institute of the Russian Academy of Sciences Universitetskaja naberežnaja 1, St. Petersburg 199034, RussiaCorrespondence

关键词: Wing length;    short-winged population;    Urals;    mountain lakes;    latitude;    isolation.;   

DOI  :  10.3402/polar.v35.26596

学科分类：自然科学（综合）

来源: Co-Action Publishing

【 摘 要 】

Specimens from five Arcynopteryx dichroa (McL.) populations were examined to study wing length and body size at different latitudes and altitudes. In northern Europe, female A. dichroa are usually long winged, while males are short winged. During the past 20 years, only two short-winged populations have been found, in a nameless lake, herein called Lake Ozernoe, and in Bolshaya Lagorta Lake, in Russia's Ural Mountains. In the isolated population of Ozernoe Lake (850 m a.s.l.), both sexes were micropterous. In Bolshaya Lagorta Lake (380 m a.s.l.), females were brachypterous. However, at a higher altitude (560 and 760 m a.s.l.), a population was found with macropterous females. Specimens of both short-winged populations had smaller body length than long-winged populations. Our findings give limited support to the idea that stonefly wings are reduced with altitude and latitude and more support to the supposition that small wing size is associated with population isolation resulting from lengthy geological is...

【 授权许可】

CC BY-NC