A novel method using hair for determining hormonal levels in wildlife

  title={A novel method using hair for determining hormonal levels in wildlife},
  author={Lee Koren and Ofer Mokady and Tatyana Karaskov and Julia Klein and Gideon Koren and Eli Geffen},
  journal={Animal Behaviour},
ormones influence behaviour, and are also influ-enced by behaviour. Monitoring their levels cantherefore provide insights into the mechanistic aspects ofbehaviour. In male mammals for example, elevated levelsof testosterone are associated with increased aggressionand dominance (Creel et al. 1993, 1997; Mazur & Booth1998) and in social mammals, levels of stress hormones(e.g. corticosterone, glucocorticoid and cortisol) areassociated with rank (Sapolsky 1985; Creel et al. 1996,1997). Research has… 

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