Picture of athlete cycling

Open Access research with a real impact on health...

The Strathprints institutional repository is a digital archive of University of Strathclyde's Open Access research outputs. Strathprints provides access to thousands of Open Access research papers by Strathclyde researchers, including by researchers from the Physical Activity for Health Group based within the School of Psychological Sciences & Health. Research here seeks to better understand how and why physical activity improves health, gain a better understanding of the amount, intensity, and type of physical activity needed for health benefits, and evaluate the effect of interventions to promote physical activity.

Explore open research content by Physical Activity for Health...

Resource allocation, hyperphagia and compensatory growth in juveniles

Gurney, William S. C. and Jones, Wayne and Veitch, A. Roy and Nisbet, Roy M. (2003) Resource allocation, hyperphagia and compensatory growth in juveniles. Ecology, 84 (10). pp. 2777-2787. ISSN 0012-9658

[img]
Preview
Text (Gurney-etal-Ecology-2003-Resource-allocation-hyperphagia-and-compensatory-growth-in-juveniles)
Gurney_etal_Ecology_2003_Resource_allocation_hyperphagia_and_compensatory_growth_in_juveniles.pdf - Final Published Version

Download (171kB) | Preview

Abstract

Many organisms exploit highly variable food supplies and, as an adaptation to such conditions, show elevated growth during recovery from starvation. In some species this response enables starved and re-fed individuals to outpace those growing continuously. The main engine of compensatory growth is a relative increase in food ingestion as a reaction to poor nutritional condition. We use a series of mathematical energy-budget models to investigate the interaction between the mechanisms that control such hyperphagia and those that control internal allocation, with the aim of identifying those strategies that permit overcompensation. We find that hyperphagia alone normally produces weak compensation and can never result in overcompensation. When combined with internal allocation, which routes a fixed fraction of net production to reserves, a strong compensatory response becomes the norm, and overcompensation is frequent.