Exploring individual quality: basal metabolic rate and reproductive performance in storm-petrels
Exploring individual quality: basal metabolic rate and reproductive performance in storm-petrels
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DOI：
10.1093/beheco/ari069
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发表时间：
2005-09-01
影响因子：
2.4
通讯作者：
Williams, JB
中科院分区：
文献类型：
--
作者：
Blackmer, AL;Mauck, RA;Williams, JB
尽管有证据表明一些个体既具有优越的繁殖性能又具有较高的存活率，但个体质量差异的潜在因素尚未得到很好的理解。补偿假说和增加摄入假说预测基础代谢率（BMR）影响繁殖性能；如果是这样，BMR的变化可能与个体素质的差异有关。我们通过测量2000年和2001年在加拿大新不伦瑞克省肯特岛饲养的Leach风暴海燕（Oceanodroma leucorhoa）的BMR和繁殖表现，评估了在孵化期间测量的BMR是否能提供个体质量变化的近似解释。我们在统计上控制了内部（体重、繁殖年龄、性别）和外部（年份、日期、时间）对BMR的影响。我们发现，相对低bmr的雄性在这个季节孵蛋更早，它们的小鸡的翅膀生长速度比相对高bmr的雄性更快。相反，BMR与母鸡的蛋量、孵化日期、小鸡生长速度或寿命无关(
Despite evidence that some individuals achieve both superior reproductive performance and high survivorship, the factors underlying variation in individual quality are not well understood. The compensation and increased-intake hypotheses predict that basal metabolic rate (BMR) influences reproductive performance; if so, variation in BMR may be related to differences in individual quality. We evaluated whether BMR measured during the incubation period provides a proximate explanation for variation in individual quality by measuring the BMRs and reproductive performance of Leach's storm-petrels (Oceanodroma leucorhoa) breeding on Kent Island, New Brunswick, Canada, during 2000 and 2001. We statistically controlled for internal (body mass, breeding age, sex) and external (year, date, time of day) effects on BMR. We found that males with relatively low BMRs hatched their eggs earlier in the season and that their chicks' wing growth rates were faster compared to males with relatively high BMRs. Conversely, BMR was not related to egg volume, hatching date, or chick growth rate for females or to lifetime (