Figure 5From: Spawning salmon disrupt trophic coupling between wolves and ungulate prey in coastal British ColumbiaRelationship between faecal and isotopic data to detect salmon use by wolves. Salmon (Oncorhynchus spp.) remains in wolf (Canis lupus) faeces expressed as occurrence per item in each group during fall and the mean seasonal isotopic shift, which is the fall minus summer δ13C values in wolf hair, averaged among individuals of the same groups grown during the same year. Samples collected in coastal British Columbia, 2001 to 2004.Back to article page