Fig. 2

Dynamics of main herbivores from 2007 to 2016 at Erkuta, southern Yamal. a Number of voles and lemmings caught on trapping quadrats per 24 trap nights. b Occurrence of mountain hare and willow ptarmigan faeces estimated as the number of small plots surrounding a quadrat where faeces were recorded (max eight small plots). For each trapping/faeces counting session (second part of June and August each year except in 2007, where one observation was carried out in July, in 2009 for faeces counts and in 2016, when only the June trapping and counts were carried out), mean results for all habitats are shown with standard error. Lines join the estimates from June