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首页> 外文期刊>The wilson journal of ornithology >BODY MASS AND PHYSIOLOGICAL VARIABLES OF INCUBATING MALES AND FEMALES IN THE EUROPEAN STORM PETREL (HYDROBATES P. PELAGICUS)
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BODY MASS AND PHYSIOLOGICAL VARIABLES OF INCUBATING MALES AND FEMALES IN THE EUROPEAN STORM PETREL (HYDROBATES P. PELAGICUS)

机译：欧洲风暴PETREL（HYDROBATES P. PELAGICUS）中诱生的苹果和雌性的身体质量和生理变化

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摘要

Examining body mass and physiological parameters in breeding adults may provide valuable insight into parental efforts provided by males and females at a given stage of breeding. Here, we examined body mass and physiological variables (hemoglobin and cholesterol concentrations, leukocyte profile) in males and females in a small pelagic seabird, the European Storm Petrel (Hydrobates p. pelagicus) during the incubation period. We expected females to be in poorer physiological condition compared to males because of their assumed higher investment (production of costly egg, with all other parental activities performed being similar). Contrary to our expectation, we did not find sex differences in the hematological values, indicating similar non-resource-based costs of reproduction. Also, we found females in good nutritional state, being heavier and having higher cholesterol concentration than males. Although we are not able to explicitly identify mechanisms responsible for the pattern observed, we suggest that common assumptions about female-biased efforts during the pre-laying and/or equal male and female parental efforts during incubation periods in the European Storm Petrel require verification.
机译：在育种成年中检查体重和生理参数可能会提供有价值的见识，以了解在给定育种阶段雄性和雌性的育儿工作。在这里，我们研究了潜伏期中小型中上层海鸟，欧洲风暴海燕（Hydrobates p。pelagicus）中雄性和雌性的体重和生理变量（血红蛋白和胆固醇浓度，白血球分布）。我们预计雌性动物的生理状况要比雄性动物差，因为它们的投资要高（生产昂贵的鸡蛋，其他所有父母活动也相似）。与我们的预期相反，我们在血液学数值上未发现性别差异，这表明类似的基于非资源的生殖成本。另外，我们发现女性的营养状况良好，比男性更重，胆固醇含量更高。尽管我们无法明确确定导致观察到的模式的机制，但我们建议对欧洲风暴海燕在预产期中女性偏向工作和/或潜伏期男性和女性同等父母努力的共同假设进行验证。

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