Alexander V. Georgiev, Diana Christie, Kevin A. Rosenfield, Angelina V. Ruiz-Lambides, Elizabeth Maldonado, Melissa Emery Thompson and Dario Maestripieri

target. We quantified changes in the male dominance hierarchy via Elo-ratings (Albers & de Vries, 2001 ; Neumann et al., 2011 ) with the EloRating (version 0.43) package (Neumann & Kulik, 2015 ) within the R 3.0.3 software environment (R Core Team, 2014) with a start value of 1000 and k (the factor

Han de Vries

. Moreover, this combination of relative win chance and multiplicative update rule is equivalent to the combination of a sigmoidal win chance and additive update rule as employed in the Elo-rating method. It is also shown that, contrary to Hemelrijk’s recommendation, David’s score is to be preferred to the

Linda M. Fedigan and Fernando A. Campos

categorized females during all other periods as ‘other’. Thus, our ‘other’ category applies to both cycling and non-cycling females that are neither pregnant nor lactating. We used an Elo-rating script for R (Neumann et al., 2011) to arrange the females of each group into an initial linear domi- nance

C.K. Hemelrijk, J. Wantia and L. Gygax

3100-0654444. We thank Han de Vries and Pascal Girod for comments on a former version. References Albers, P.C.H. & de Vries, H. (2001). Elo-rating as a tool in the sequential estimation of dominance strengths. — Anim. Behav. 61: 489-495. Barchas, P.R. & Mendoza, S.D. (1984). Emergent hierarchical

G. Wittemyer and W.M. Getz

responsibility for the accuracy of this code or results obtained through use of our website. References Albers, P.C.H. & de Vries, H. (2001). Elo-rating as a tool in the sequential estimation of dominance strengths. — Anim. Behav. 61: 489-495. Appleby, M.C. (1983). The probability of linearity in hierarchies

David P. Watts

, whereas in queues individuals enter hierarchies at the bottom and only change position as others subsequently join or leave the hierarchy via maturation or death. In support, they showed a model in which challenges led to status changes, as reflected in Elo ratings, fit Kasekela data better than one in

Series:

Kimberley Jayne and Adam See

2017]. Wooddell L.J. , S.K.K. Stefano , S.J. Suomi and A.M. Dettmer ( 2017 ). Elo-rating for Tracking Rank Fluctuations After Demographic Changes Involving Semi-free Ranging Rhesus Macaques (Macaca Mulatta) . Journal of the American Association for Laboratory Animal Science , 56 ( 3 ), pp. 1