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首页> 外文期刊>Journal of Experimental Marine Biology and Ecology >Pre-breeding ecophysiology of a long-distance migratory seabird
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Pre-breeding ecophysiology of a long-distance migratory seabird

机译：远距离迁徙海鸟的繁殖前生理生态

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摘要

The energetic demands of animals change throughout their annual life cycle. In migrating birds, reproduction and migration are the two most energy demanding processes; the transition from one to the other require a number of physiological adjustments. When arriving to the breeding grounds, long-distance migratory birds need to recover from migration and prepare for reproduction. This process is crucial, since pre-breeding body condition has been established as a critical factor influencing reproductive success in several avian species. In the present study we examined the physiological condition of the Cory's shearwater {Calonectris diomedea borealis, Cory 1881) after arrival from migration to a breeding colony, as well as its changes throughout the pre-laying period. We weighed and took blood samples from 149 shearwaters newly arrived to their breeding colony. If birds were found again after 10, 20,30 or 40 days since their first capture, they were resampled. We examined individual variation of biochemical parameters, body mass and blood oxygen transport capacity in both males and females. Our results indicate that birds were improving their body condition after arrival from migration. Plasma metabolites revealed shearwaters were depositing fat and degrading muscular mass during post-migration and pre-laying, suggesting shearwaters were remodeling their body composition to have more space for lipid reserves. Females started fat deposition earlier than males, probably to cope with the lipid demands of egg formation. This study shows that biochemical blood parameters are good indicators of the eco-physiological changes experienced by post-migrating and pre-breeding birds.
机译：动物的能量需求在其整个生命周期中都在变化。在鸟类的迁徙中，繁殖和迁徙是两个最耗能的过程。从一个过渡到另一个需要许多生理上的调整。到达繁殖地时，长途候鸟需要从迁徙中恢复过来并准备繁殖。这个过程至关重要，因为已经确定了繁殖前的身体状况是影响几种禽类繁殖成功的关键因素。在本研究中，我们研究了从迁徙到繁殖群体后，科里的切水的生理状况（Calonectris diomedea northalis，科里1881），以及在整个预产期的变化。我们称重并从新到达其繁殖地的149个剪水中取血样。如果自首次捕获以来的10、20、30或40天后再次发现鸟类，将对其重新采样。我们检查了男性和女性的生化参数，体重和血氧转运能力的个体差异。我们的结果表明，鸟类从迁徙到迁入后正在改善其身体状况。血浆代谢物显示，在迁移后和产蛋前，剪切水正在沉积脂肪并降低肌肉质量，这表明剪切水正在重塑其身体成分，以为脂质储备提供更多空间。女性比男性更早开始脂肪沉积，可能是为了应付卵形成过程中对脂质的需求。这项研究表明，生化血液参数是迁徙和繁殖前鸟类经历的生态生理变化的良好指标。

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    Rosana Arizmendi-Mejia; Teresa Militao; Gines Viscor; Jacob Gonzalez-Solis;

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    Institut de Recerca de la Biodiversitat (IRBio), University of Barcelona, Avinguda Diagonal 643, 08028 Barcelona, Spain,Departament d'Ecologia, Faculty of Biology, University of Barcelona, Avinguda Diagonal 643, 08028 Barcelona, Spain;

    Institut de Recerca de la Biodiversitat (IRBio), University of Barcelona, Avinguda Diagonal 643, 08028 Barcelona, Spain,Departament de Biologia Animal, Faculty of Biology, University of Barcelona, Avinguda Diagonal 643, 08028 Barcelona, Spain;

    Departament de Fisiologia i Immunologia, Faculty of Biology, University of Barcelona, Avinguda Diagonal 643, 08028 Barcelona, Spain;

    Institut de Recerca de la Biodiversitat (IRBio), University of Barcelona, Avinguda Diagonal 643, 08028 Barcelona, Spain,Departament de Biologia Animal, Faculty of Biology, University of Barcelona, Avinguda Diagonal 643, 08028 Barcelona, Spain;

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  • 正文语种 eng
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  • 关键词

    Nutritional state; Individual physiological changes; Bird migration; Body condition; Shearwater; Calonectris diomedea;

    机译：营养状态;个体生理变化;鸟类迁徙;身体状况;剪切水;鸡翅菌;

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