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Details of Award

NERC Reference : NER/I/S/2002/00637

Life history trade-offs between growth and immunocompetence as a cause of intraspecific genetic biodiversity.

Fellowship Award

Fellow:
Dr SA Arnott, University of Aberdeen, Inst of Biological and Environmental Sci
Science Area:
Marine
Freshwater
Overall Classification:
Marine
ENRIs:
Natural Resource Management
Global Change
Biodiversity
Science Topics:
Environmental Physiology
Population Genetics/Evolution
Climate & Climate Change
Abstract:
Correlations between body size and fitness have led to a pervasive 'bigger is better' paradigm, but recent evidence reveals a conflicting negative relationship between growth rate and fitness. It is known that the evolution of life history traits necessitates trade-offs due to resource limitations. I will investigate whether a key trade-off occurs between growth and immunocompetence. In poikilotherms, this is based on the assumption that sub-populations living in colder habitats with a short growth season require fast growth, since positive associations have been shown between size and over-winter survival. Conversely, warmer habitats require investment in immunity due to higher risk and severity of pathogens. I propose that this trade-off results in intraspecific genetic biodiversity through differential selection of genotypes that are adapted to localised habitat temperature.
Period of Award:
20 Jan 2004 - 19 Jan 2007
Value:
£135,184
Authorised funds only
NERC Reference:
NER/I/S/2002/00637
Grant Stage:
Completed
Scheme:
Postdoctoral Fellow
Grant Status:
Closed

This fellowship award has a total value of £135,184  

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FDAB - Financial Details (Award breakdown by headings)

Total - StaffTotal - Other Costs
£106,684£28,499

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