Understanding the migration ecology of European red admirals Vanessa atalanta using stable hydrogen isotopes
Understanding the migration ecology of European red admirals Vanessa atalanta using stable hydrogen isotopes
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DOI：
10.1111/j.1600-0587.2009.05748.x
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发表时间：
2010-09-01
期刊：
影响因子：
5.9
通讯作者：
Akesson, Susanne
中科院分区：
文献类型：
--
作者：
Brattstrom, Oskar;Bensch, Staffan;Akesson, Susanne
使用标准的标记重捕获方法或遗传分析来跟踪具有不同迁徙模式的小动物的迁徙运动是很困难的。我们使用欧洲红海军上将 Vanessa atalanta 翅膀的稳定氢同位素 (delta D) 测量来研究该物种迁徙的几个方面。在南欧中部地区，我们发现秋季和春季采样的红海军上将之间的 Delta D 值存在很大差异，这支持了地中海地区冬季繁殖的假设。春季，来自更南地区的个体也明显涌入南欧，因为许多样本具有更高的 Delta D 值，并且与北非沿海地区的预期相似。我们发现北欧红海军上将采样的 Delta D 值存在明显的季节性差异。抵达北欧的春季移民通常具有较高的 Delta D 值，表明其来自南方。秋季，Delta D 值表明红将军大多来自采样点附近的地区，但在整个采样期间，总是有一些个体的 Delta D 值表明非本地起源。据推测，该物种的迁徙模式具有高度可变性和可塑性。欧洲西部地区个体之间的 delta D 差异通常很小，使得迁徙模式难以解释。然而，来自西欧的蝴蝶显然与来自东北欧的蝴蝶隔离开来，因为西部地区的 Delta D 值很少与来自东北部的秋季迁徙者的 D 值相对应。使用 delta D 数据来推断欧洲蝴蝶迁徙非常复杂，但我们的研究表明，该技术可用于帮助揭示红海军上将迁徙的先前未知方面。
Tracking migratory movement of small animals with variable migration patterns is difficult with standard mark-recapture methods or genetic analysis. We used stable hydrogen isotope (delta D) measurements of wings from European red admirals Vanessa atalanta to study several aspects of this species' migration. In the central part of southern Europe we found large differences in delta D values between red admirals sampled in autumn and spring supporting the hypothesis that reproduction takes place in the Mediterranean region during winter. There was also an apparent influx to southern Europe in the spring of individuals with a more southerly origin, since many samples had higher delta D values and similar to those expected from coastal areas of North Africa. We found a clear seasonal difference in the delta D values of red admirals sampled in northern Europe. Spring migrants arriving in northern Europe generally had high delta D values that indicated a southerly origin. In autumn, delta D values suggested that red admirals were mostly from regions close to the sampling sites, but throughout the sampling period there were always individuals with delta D values suggesting non-local origins. The migration pattern of this species is supposedly highly variable and plastic. delta D differences between individuals in the western part of Europe were generally small making migratory patterns difficult to interpret. However, butterflies from western Europe were apparently isolated from those from north-eastern Europe, since delta D values in the western region rarely corresponded to those of autumn migrants from the north-east. Use of delta D data for inferring butterfly migration in Europe is complex, but our study showed that this technique can be used to help uncover previously unknown aspects of red admiral migration.