Using stable carbon (δ13C) and nitrogen (δ15N) isotopes to infer trophic relationships among black and grizzly bears in the upper Columbia River basin, British Columbia

By Keith A. Hobson, Bruce N. McLellan, J. G. Woods. 2000

207 citations recorded by the source corpus.

Subfields: Ecology

View Paper: https://www.semanticscholar.org/paper/4c788997a08245c302534fe26e433e7bb1368e7d

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In Ecology

Citations in the corpus

Stable-isotope ratios of blood components from captive northern fur seals (Callorhinus ursinus) and their diet: applications for studying the foraging ecology of wild otariids (2002, background): “Stable carbon and nitrogen isotope ratios ( 13C/12C and 15 N/14N, respectively) in animal tissues can be used to make inferences about trophic relationships and foraging locations in terrestrial and marine food webs (Chamberlain et al. 1997; Burns et al. 1998; Burton and Koch 1999; Fry et al. 1999; ”
Nutritional ecology of ursids: a review of newer methods and management implications (2004, background): “Today, all bear species have declined in numbers and distribution due to effects of human activities (Servheen et al. 1999).”
Nitrogen isotopes in mammalian herbivores: hair δ15N values from a controlled feeding study (2003, background): “, 1999), raptors (Harding & Stevens, 2001), bears (Hobson et al., 2000), voles (Harding & Stevens, 2001), whales (Abend & Smith, 1997), fish (Fry et al.”
SAMPLING DESIGN AND BIAS IN DNA-BASED CAPTURE–MARK–RECAPTURE POPULATION AND DENSITY ESTIMATES OF GRIZZLY BEARS (2004, background): “In addition, the use of stable isotopes in hairs to identify nursing cubs (Hobson et al. 2000) also might allow partial identification of cubs in the dataset.”
Isotopic evidence for dietary ecology of late Neandertals in North-Western Europe (2016, background): “Neandertals went extinct approximately 40,000 years ago (Higham et al., 2014), around the time anatomically modern humans (AMH) began to replace the previous Neandertal populations (Hublin, 2015; Nigst et al., 2014).”
Intrapopulation variation in gray wolf isotope (δ15N and δ13C) profiles: implications for the ecology of individuals (2005, background): “Several recent studies have described the advantages in using the stable isotope approach to augment more traditional dietary methods (Hobson et al. 1994; Hobson et al. 2000; Litvaitis 2000).”
Extinction chronology and palaeobiology of the cave bear (Ursus spelaeus) (2009, background): “These isotope levels occur both in the foetus, which develops at this time, and in the newborn cub, which is sustained by its mother’s milk, whereas isotope levels in the mother’s collagen are unaffected (Nelson et al. 1998; Lı́den & Angerbjörn 1999; Hobson et al. 2000; Bocherens et al. 2004).”
Marine mammals from the southern North Sea: feeding ecology data from δ13C and δ15N measurements (2003, result): “…between these 2 pups and adult females, which is in agreement with previous studies on northern fur seals (Hobson et al. 1997) and black bears (Hobson et al. 2000); Mobson et al. (1997, 2000) reported a mean δ15N enrichment of 1.9 and 2.5‰ between suckling juveniles and adult females for fur…”
Carnivory is Positively Correlated with Latitude among Omnivorous Mammals: Evidence from Brown Bears, Badgers and Pine Martens (2009, background): “There is currently a considerable interest in applying stable-isotope methods to deciphering the diets of extant and extinct bears and other wildlife in North America and Europe (Hildebrand et al. 1999, Hobson et al. 2000, Felicetti et al. 2003, Bocherens et al. 2004, Urton & Hobson 2005).”
SEASONAL AND DIEL PATTERNS OF GRIZZLY BEAR DIET AND ACTIVITY IN WEST-CENTRAL ALBERTA (2006, background): “Larger males rely more on animal protein to sustain their large body mass, whereas females can persist on vegetative diets alone (Hobson et al. 2000; Jacoby et al. 1999; Rode et al. 2001).”
Pleistocene Megafauna From Eastern Beringia: Paleoecological And Paleoenvironmental Interpretations Of Stable Carbon And Nitrogen Isotope And Radiocarbon Records (vol 261, Pg 30, 2008) (2008, background): “Alternatively, brown bears with relatively low δ15N values may have had more omnivorous diets that included insects, leaves, berries and seeds (Hilderbrand et al., 1996; Hobson et al., 2000).”