Sources of variation in maternal allocation in a long‐lived mammal
Sources of variation in maternal allocation in a long‐lived mammal
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长寿哺乳动物母体分配变异的来源
DOI：
10.1111/1365-2656.13243
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发表时间：
2020
影响因子：
4.8
通讯作者：
Link, William A.
中科院分区：
文献类型：
--
作者：
Macdonald, Kaitlin R.;Rotella, Jay J.;Garrott, Robert A.;Link, William A.
生活史理论预测，生殖能量的分配随母亲年龄的变化而变化，但额外的母体特征可能对生殖能量的分配很重要。我们的目的是描述母体分配的年龄特异性变化，并评估母体分配与其他静态和动态母体特征之间的关系。使用贝叶斯分层模型对531只母亲和幼崽的质量测量结果进行解释，不同的母亲属性之间的关系，以及韦德尔海豹母亲分配的质量比例，结果表明，母体质量与母体和幼鼠断奶质量分配的相对储备量呈显著正相关，但质量传递效率随着母体质量的增加而降低产妇分娩质量。出生日期与质量分配比例和幼犬断奶质量呈正相关，但预计质量传递效率在平均出生日期最高。母体储备的相对分配随着母体年龄的增长而下降，但向幼崽的质量转移效率增加，表明低质量母体的选择性消失。这些发现强调了在评估母体分配变化时考虑多种母体特征的重要性。
Life history theory predicts allocation of energy to reproduction varies with maternal age, but additional maternal features may be important to the allocation of energy to reproduction.We aimed to characterize age‐specific variation in maternal allocation and assess the relationship between maternal allocation and other static and dynamic maternal features.Mass measurements of 531 mothers and pups were used with Bayesian hierarchical models to explain the relationship between diverse maternal attributes and both the proportion of mass allocated by Weddell seal mothers, and the efficiency of mass transfer from mother to pup during lactation as well as the weaning mass of pups.Our results demonstrated that maternal mass was strongly and positively associated with the relative reserves allocated by a mother and a pup's weaning mass but that the efficiency of mass transfer declines with maternal parturition mass. Birthdate was positively associated with proportion mass allocation and pup weaning mass, but mass transfer efficiency was predicted to be highest at the mean birthdate. The relative allocation of maternal reserves declined with maternal age but the efficiency of mass transfer to pups increases, suggestive of selective disappearance of poor‐quality mothers.These findings highlight the importance of considering multiple maternal features when assessing variation in maternal allocation.
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影响因子：
2.6
作者：
Chambert, Thierry;Rotella, Jay J.;Higgs, Megan D.;Garrott, Robert A.
通讯作者：
Garrott, Robert A.
在使用摄影测量质量估计进行分析时考虑预测方差的重要性
影响因子：
2.3
作者：
K. Proffitt;R. Garrott;J. Rotella;J. Banfield
通讯作者：
J. Banfield
出生年份和当年对雌性威德尔海豹存活率和招募率的影响
影响因子：
1.7
作者：
Glenn E. Stauffer;J. Rotella;R. Garrott
通讯作者：
R. Garrott
影响因子：
1.4
作者：
de Bruyn, P. J. Nico;Bester, Marthan N.;Oosthuizen, W. Chris
通讯作者：
Oosthuizen, W. Chris
影响因子：
4.8
作者：
Aubry, Lise M.;Koons, David N.;Cam, Emmanuelle
通讯作者：
Cam, Emmanuelle