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首页> 外文期刊>Marine biology >Environmental variability and fledging body mass of Common Guillemot Uria aalge chicks
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Environmental variability and fledging body mass of Common Guillemot Uria aalge chicks

机译：普通海雀科的乌里亚aalge雏鸡的环境变异性和雏鸡体重

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摘要

To gain a better understanding of population processes and in the light of the critically endangered status of the Common Guillemot Uria aalge in Norway, we investigate which environmental factors might affect the fitness of guillemot chicks as they depart from the nest site over a 16-year period on a colony in NE Norway. Although prey composition did not seem to influence the fledging body mass of the chicks, there were significant relationships between the yearly variations in chick body mass and abundance of two important prey species (1-group herring Clupea harengus that is an important chick food item and O-group cod Gadus morhua that is an important adult food item), population size and the sea surface temperature around the colony. The positive influence of young herring and cod on Common Guillemot chick mass occurred during a period of warming in the Barents Sea such that future recruitment into the population will depend partly on the long-term changes in ocean climate in the region.
机译：为了更好地了解种群过程，并考虑到挪威普通海雀科的乌里亚海藻处于极度濒危的状况，我们调查了在16年内海雀科小鸡离开巢点后，哪些环境因素可能会影响海雀科小鸡的适应性挪威东北殖民地时期。尽管猎物组成似乎并未影响雏鸡的雏鸡体重，但雏鸡体重的年度变化与两种重要猎物物种的丰度之间存在显着关系（1群鲱鱼Clupea harengus是重要的雏鸡食物， O型鳕鳕（Gadus morhua）是重要的成年食物），种群大小和殖民地附近的海面温度。在巴伦支海变暖期间，鲱鱼和鳕鱼幼鱼对普通海雀科的小鸡数量产生了积极影响，因此将来能否招募到该种群中将部分取决于该区域海洋气候的长期变化。

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  • 来源
    《Marine biology》 |2013年第5期|1239-1248|共10页
  • 作者

    Robert T. Barrett; Kjell Einar Erikstad;

  • 作者单位

    Department of Natural Sciences, Troms0 University Museum,9037 Troms0, Norway;

    Norwegian Institute for Nature Research, FRAM—High North Research Centre for Climate and the Environment, 9296 Troms0, Norway;

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