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Spatial distribution of personality types

Spatial distribution of personality types. Ulrika Alm Bergvall Grimsö Wildlife Research Station, Dept. of Ecology , Swedish University of Agricultural Sciences. Fallow deer ( Dama dama ). Question. How can we explain the maintenance of multiple personality types in a population?.

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Spatial distribution of personality types

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  1. Spatial distribution of personalitytypes Ulrika Alm Bergvall GrimsöWildlife Research Station, Dept. of Ecology, Swedish University of Agricultural Sciences Fallowdeer (Dama dama)

  2. Question • Howcanweexplain the maintenance of multiple personalitytypes in a population?

  3. Answer • Equalfitness • Spatial variation and limitedplasticity(Darwin 1859, Dobzhansky 1951, West-Eberhard2003)

  4. Method • Identifypersonalitytrait dimensions in fallowdeer(Dama dama) • Relatepersonality to spatial distribution

  5. Tame fallowdeer • Experimental studies • Behavioural observations • Personality ratings Bergvall UA, Schäpers A, Kjellander P & Weiss A. 2011 Animal Behaviour

  6. 36 wild fallowdeer GPS-GSM collar

  7. Arcview

  8. Personalitytrait dimensions BoldnessDominanceFlexibilitySociability

  9. Habitat map (satellite) GPS positions from 17 females Summer 2008 – 2010 Proportion positions in different habitat types

  10. Results Shyerindividualsmoreoften in pastures Boldindividualsmoreoften in youngforest High in Sociability / Dominance – more in pastures

  11. Conclusions • Spatial variation together with limitedplasticitycanexplain evolution and maintenanceof personality • Studies on vigilance • Earlier studies: Adjustvigilance to habitat and risk • This study: Different types of vigilance in separate personality dimensions and • more vigilant individuals in morerisky habitats and vice versa. Individualsselectenvironment

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