4.6 Article

Decline ofEulia ministrana(Lepidoptera: Tortricidae) in polluted habitats is not accompanied by phenotypic stress responses

期刊

INSECT SCIENCE
卷 28, 期 5, 页码 1482-1490

出版社

WILEY
DOI: 10.1111/1744-7917.12862

关键词

copper-nickel smelter; fluctuating asymmetry; industrial melanism; Kola Peninsula; moth size; pheromone trapping

资金

  1. Academy of Finland [276671, 311929]
  2. Academy of Finland (AKA) [311929, 311929] Funding Source: Academy of Finland (AKA)

向作者/读者索取更多资源

Environmental pollution is identified as a major factor in the rapid decline of insect populations. However, in this study, while the population density of the studied moth decreased significantly, no visible morphological signs of stress were found, indicating that insect populations can decline without showing obvious signs of stress.
Environmental pollution is currently identified as one of the major drivers of rapid decline of insect populations, and this finding has revitalized interest in insect responses to pollution. We tested the hypothesis that the pollution-induced decline of insect populations can be predicted from phenotypic stress responses expressed as morphological differences between populations inhabiting polluted and unpolluted sites. We explored populations of the brassy tortrixEulia ministranain subarctic forests along an environmental disturbance gradient created by long-lasting severe impacts of aerial emissions of the copper-nickel smelter in Monchegorsk, northwestern Russia. We used pheromone traps to measure the population densities of this leafrolling moth and to collect specimens for assessment of three morphological stress indices: size, forewing melanization, and fluctuating asymmetry in wing venation. Wing length ofE. ministranaincreased by 10%, and neither forewing melanization nor fluctuating asymmetry changed from the unpolluted forest to the heavily polluted industrial barren. However, the population density ofE. ministranadecreased 5 to 10 fold in the same pollution gradient. Thus, none of the studied potential morphological stress indicators signaled vulnerability ofE. ministranato environmental pollution and/or to pollution-induced environmental disturbance. We conclude that insect populations can decline without any visible signs of stress. The use of morphological proxies of insect fitness to predict the consequences of human impact on insect populations is therefore risky until causal relationships between these proxies and insect abundance are deciphered.

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.6
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

暂无数据
暂无数据