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Keywords: growth
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Journal Articles
Journal Articles
Journal Articles
J Exp Biol (2025) 228 (6): jeb249395.
Published: 26 March 2025
... in their consequences for the animal. We discuss differences in growth, reproduction and tolerance of environmental challenges, all of which are suppressed in subordinate individuals, and focus on the underlying mechanisms that give rise to these phenotypes. Repeated and/or continual activation of the hypothalamic...
Journal Articles
J Exp Biol (2024) 227 (8): jeb247132.
Published: 19 April 2024
... to a certain size and for a sponge to increase in size, new modules must be formed. However, the growth characteristics of a small single-osculum module sponge are fundamentally different from those of multi-modular sponges, and a theoretically derived volume-specific filtration rate scales as F / V = V −1/3...
Includes: Supplementary data
Journal Articles
J Exp Biol (2024) 227 (5): jeb247120.
Published: 8 March 2024
... or variable temperatures. We measured their consequent heart rate reaction norms to short-term changes in egg temperature and tracked their growth. Contrary to expectations, the early thermal environment did not modify heart rate reaction norms, but regardless, these reaction norms differed among individuals...
Includes: Supplementary data
Journal Articles
J Exp Biol (2024) 227 (Suppl_1): jeb246010.
Published: 7 March 2024
..., then developmental plasticity allows environmentally induced alterations to the target. However, there can also be variations in the trajectory. This is seen with compensatory responses, for instance where growth accelerates after an earlier period of food shortage, or where investment in sexual ornaments...
Journal Articles
JEB: 100 years of discovery
Series: CENTENARY ARTICLE
J Exp Biol (2023) 226 (11): jeb245426.
Published: 30 May 2023
... that metabolic allometry arises as a consequence of the optimisation of growth and reproduction to maximise fitness within a finite life. Our theory is free of physical geometric constraints that limit the possibilities available to evolution, and we therefore argue that metabolic allometry can be explained...
Journal Articles
J Exp Biol (2020) 223 (23): jeb232496.
Published: 15 December 2020
... treatment had a positive effect on body mass growth at 30 days after hatching and immune response at sexual maturity, while egg testosterone treatment positively influenced immune response at fledging and courtship behaviour in sexually mature male offspring. Maternal effects are known to modulate offspring...
Includes: Supplementary data
Journal Articles
J Exp Biol (2020) 223 (23): jeb229195.
Published: 11 December 2020
... temperatures for growth (22 and 34°C) for 40 days and measuring growth and thermal tolerance at two different warming rates. We found that tolerance to rapid warming correlated with tolerance to slow warming in the 22°C treatment. However, individual tolerance to neither rapid nor slow warming correlated...
Includes: Supplementary data
Journal Articles
J Exp Biol (2020) 223 (23): jeb237255.
Published: 11 December 2020
... Macronutrient content Protein Spider Fitness Growth Reproduction As for all organisms, predators experience trade-offs between life-history traits or fitness components, including growth, reproduction and survival, due to limited resources within a set time frame ( Roff, 2002 ; Stearns, 1992...
Includes: Supplementary data
Journal Articles
Journal Articles
Journal Articles
Journal Articles
J Exp Biol (2019) 222 (17): jeb182741.
Published: 3 September 2019
..., tendon stiffness, elastic energy storage capacity and efficiency were calculated from muscle and tendon morphological parameters and in vitro tendon mechanical properties obtained from a growth series of ostrich cadavers. Ontogenetic scaling relationships were established using reduced major axis...
Includes: Supplementary data
Journal Articles
J Exp Biol (2019) 222 (10): jeb200659.
Published: 17 May 2019
...Vallo Tilgar ABSTRACT Prolonged stress can have long-lasting effects on an individual's physiology and growth. However, the impact of chronically elevated glucocorticoids on the expression of early antipredator responses is still poorly documented. In this study, I simulated the effect of repeated...
Includes: Supplementary data
Journal Articles
Journal Articles
J Exp Biol (2018) 221 (13): jeb173146.
Published: 4 July 2018
...Abdullah Alzaid; Jin-Hyoung Kim; Robert H. Devlin; Samuel A. M. Martin; Daniel J. Macqueen ABSTRACT Suppression of growth during infection may aid resource allocation towards effective immune function. Past work supporting this hypothesis in salmonid fish revealed an immune-responsive regulation...
Includes: Supplementary data
Journal Articles
J Exp Biol (2018) 221 (9): jeb174300.
Published: 10 May 2018
... the concentration of vitamin E and corticosterone in the eggs of the yellow-legged gull ( Larus michahellis ) by administering a physiological (2 s.d.) dose both independently and in combination. We tested for an effect on chick post-natal growth, plasma antioxidant capacity (TAC) and oxidative compounds (TOS...
Journal Articles
Journal Articles