Fig 1.
Study areas in Tatra and Bieszczady Mts with current bear distribution shown on 10x10 km grid.
Table 1.
Values of faecal nitrogen (FN, in % of faecal dry matter), faecal carbon (FC, in % of faecal dry matter) and faecal cortisol metabolites (FCM, in ng/g of faecal dry matter) in brown bear faeces, collected in Tatra and Bieszczady Mts in Poland in 2008–2011.
Fig 2.
Faecal nitrogen (FN, %), carbon (FC, %) and cortisol metabolite (FCM, ng/g) values in the study areas.
Table 2.
Summary of model selection explaining the variation in faecal nitrogen (FN, %), faecal carbon (FC, %) and faecal cortisol metabolites (FCM, ng/g) in relation to the study area (reference category: Bieszczady Mts) and season (reference category: hyperphagia).
We also provide the percentage of deviance explained by each model and the p-values of the predictors. Models were fitted using identity link and gaussian distribution (FN(%), FCM(ng/g)) and log link and gamma (FC(%)) error distributions. FN and FCM values were log-transformed.
Table 3.
Summary of model selection explaining the relationship between faecal cortisol metabolites (FCM, ng/g) and food quality (faecal carbon FC and faecal nitrogen FN, %).
Generalized linear models were fitted using identity link and gaussian error distributions. FCM values were log transformed.