High-resolution recording of foraging behaviour over multiple annual cycles shows decline in old Adélie penguins' performance
High-resolution recording of foraging behaviour over multiple annual cycles shows decline in old Adélie penguins' performance
复制标题
对多个年度周期中觅食行为的高分辨率记录显示，老阿德利企鹅的表现有所下降
DOI：
10.1098/rspb.2022.2480
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发表时间：
2023
期刊：
影响因子：
--
通讯作者：
Ballard, Grant
中科院分区：
文献类型：
--
作者：
Lescroël, Amélie;Schmidt, Annie;Ainley, David G.;Dugger, Katie M.;Elrod, Megan;Jongsomjit, Dennis;Morandini, Virginia;Winquist, Suzanne;Ballard, Grant
觅食性能的年龄相关变化可能是个体内部变化和选择过程的结果。这些机制只能通过具有挑战性的长期纵向研究来解开。通过对18只ad<s:1>企鹅（Pygoscelis adeliae，年龄4-15岁）连续三个年周期的长期人口统计数据集和高时间分辨率跟踪，我们研究了不同年龄段个体的觅食行为是如何变化的。有证据表明，在年轻人和中年人中，个体内的情况有所改善，但在老年人中，觅食潜水频率显著减少，这与潜水下降率下降有关。采食性能下降的年龄（12-15岁至15-18岁）比该物种预测的衰老开始时间（9-11岁）晚。觅食潜水频率受繁殖状态和年生命周期相互作用的影响最大，在返回迁徙和繁殖季节频率最高，繁殖成功的雏鸟在育雏期总体频率最高。雌性比雄性每小时进行更多的觅食潜水。这项纵向的、完整的年度周期研究使我们能够阐明不同年龄段个体觅食行为的变化，并突出了个体觅食行为驱动因素之间复杂的相互作用。
Age-related variation in foraging performance can result from both within-individual change and selection processes. These mechanisms can only be disentangled by using logistically challenging long-term, longitudinal studies. Coupling a long-term demographic data set with high-temporal-resolution tracking of 18 Adélie penguins (Pygoscelis adeliae, age 4–15 yrs old) over three consecutive annual cycles, we examined how foraging behaviour changed within individuals of different age classes. Evidence indicated within-individual improvement in young and middle-age classes, but a significant decrease in foraging dive frequency within old individuals, associated with a decrease in the dive descent rate. Decreases in foraging performance occurred at a later age (from 12–15 yrs old to 15–18 yrs old) than the onset of senescence predicted for this species (9–11 yrs old). Foraging dive frequency was most affected by the interaction between breeding status and annual life-cycle periods, with frequency being highest during returning migration and breeding season and was highest overall for successful breeders during the chick-rearing period. Females performed more foraging dives per hour than males. This longitudinal, full annual cycle study allowed us to shed light on the changes in foraging performance occurring among individuals of different age classes and highlighted the complex interactions among drivers of individual foraging behaviour.
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影响因子：
3.3
作者：
Hinke JT;Watters GM;Reiss CS;Santora JA;Santos MM
通讯作者：
Santos MM
影响因子：
3.7
作者：
Zimmer I;Ropert-Coudert Y;Kato A;Ancel A;Chiaradia A
通讯作者：
Chiaradia A
王企鹅的早期生活：专业潜水员的潜水能力和觅食行为的个体发育。
DOI：
10.1242/jeb.242512
发表时间：
2021
期刊：
The Journal of experimental biology
影响因子：
--
作者：
M. Enstipp;C. Bost;C. Le Bohec;N. Chatelain;H. Weimerskirch;Y. Handrich
通讯作者：
Y. Handrich
阿德利企鹅觅食效率与年龄相关的改善的证据
影响因子：
4.6
作者：
A. Lescroël;G. Ballard;M. Massaro;Katie M. Dugger;S. Jennings;A. Pollard;E. Porzig;Annie E. Schmidt;A. Varsani;D. Grémillet;D. Ainley
通讯作者：
D. Ainley
独立的挑战：长寿海鸟海上行为的个体发育
DOI：
10.1101/2021.10.23.465439
发表时间：
2021
期刊：
bioRxiv
影响因子：
--
作者：
K. Delord;H. Weimerskirch;C. Barbraud
通讯作者：
C. Barbraud