Selection criteria for multievent capture recapture models of sighting histories of killer whales at Marion Island: long-term (up to 24 months) responses following sampling (tagging or biopsy) attempts.

‘Season’ refers to the same seasonality affect for all individuals. ‘DH(1).season’ refers to seasonality applying only to one of two hidden mixture groups (suggesting ‘resident’ and ‘migrant’ animals) while ‘DH(2).season’ refers to seasonality applying to all individuals but independently for two hidden groups (suggesting variation between individuals). ‘trap’ refers to a trap-dependence effect, ‘sampling’ refers to a sampling effect and ‘t2008–2011;2011–2013’ accounts for two periods with differing field effort.Notes: aĉ = 1.75.Selection criteria for multievent capture recapture models of sighting histories of killer whales at Marion Island: long-term (up to 24 months) responses following sampling (tagging or biopsy) attempts.