Whole nest food restriction has persistent physiological effects in developing zebra finches DOI
Victoria M. Coutts, Kevin Pham, Alexander J. Hoffman

и другие.

Journal of Neuroendocrinology, Год журнала: 2025, Номер unknown

Опубликована: Май 28, 2025

Abstract In a rapidly changing world, food resources are becoming more limited, leading to unpredictable bouts and durations of nutritional stress. Many studies indicate that developmental stress can permanently alter suite physiological, morphological, or behavioral traits, yet the phenotypic effects low supply in environment may vary depending on mode degree parental care. For example, our previous work suggests zebra finch ( Taeniopygia guttata castanotis ) parents buffer offspring from restriction, minimizing negative growth, at cost maintaining their own body mass. To evaluate whole nest restriction further, we investigated short‐ long‐term changes physiological morphological traits young exposed either an ad libitum diet 40% restricted as nestlings juveniles until 60 days post‐hatch. Specifically, measured furculum fat, adrenocortical response, glucose levels throughout development into adulthood well mass examine any latent persistent effect. Young food‐restricted nests overall had significantly higher baseline corticosterone compared controls, suggesting previously observed buffering not have been sufficient mitigate deleterious restriction. Furthermore, birds lower controls adulthood, there was effect manifested potentially due costs during treatment later release treatment. Furculum response did differ between experimental groups. There also no difference brood size variance groups, compensation correlate with adulthood. Lastly, significant relationship although growth were maintained treatment, energy redirected maintenance different processes This study further supports need for measuring after ends determine stressors highlights cannot fully adverse environmental conditions.

Язык: Английский

Whole nest food restriction has persistent physiological effects in developing zebra finches DOI
Victoria M. Coutts, Kevin Pham, Alexander J. Hoffman

и другие.

Journal of Neuroendocrinology, Год журнала: 2025, Номер unknown

Опубликована: Май 28, 2025

Abstract In a rapidly changing world, food resources are becoming more limited, leading to unpredictable bouts and durations of nutritional stress. Many studies indicate that developmental stress can permanently alter suite physiological, morphological, or behavioral traits, yet the phenotypic effects low supply in environment may vary depending on mode degree parental care. For example, our previous work suggests zebra finch ( Taeniopygia guttata castanotis ) parents buffer offspring from restriction, minimizing negative growth, at cost maintaining their own body mass. To evaluate whole nest restriction further, we investigated short‐ long‐term changes physiological morphological traits young exposed either an ad libitum diet 40% restricted as nestlings juveniles until 60 days post‐hatch. Specifically, measured furculum fat, adrenocortical response, glucose levels throughout development into adulthood well mass examine any latent persistent effect. Young food‐restricted nests overall had significantly higher baseline corticosterone compared controls, suggesting previously observed buffering not have been sufficient mitigate deleterious restriction. Furthermore, birds lower controls adulthood, there was effect manifested potentially due costs during treatment later release treatment. Furculum response did differ between experimental groups. There also no difference brood size variance groups, compensation correlate with adulthood. Lastly, significant relationship although growth were maintained treatment, energy redirected maintenance different processes This study further supports need for measuring after ends determine stressors highlights cannot fully adverse environmental conditions.

Язык: Английский

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