Use of sulfur and nitrogen stable isotopes to determine the importance of whitebark pine nuts to Yellowstone grizzly bears

By L. Felicetti, C. C. Schwartz, R. Rye, M. Haroldson, K. Gunther, D. Phillips, Charles T. Robbins. 2003

128 citations recorded by the source corpus.

Subfields: Ecology

View Paper: https://www.semanticscholar.org/paper/d94fdc628ad5cce8e83c786f80fb170cfc31fdc9

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In Ecology

1. Keith A. Hobson
2. S. Newsome
3. E. Angulo
4. S. Caut
5. F. Courchamp
6. D. Phillips
7. J. Gregg
8. D. Heard

Citations in the corpus

• Discrimination factors (Δ15N and Δ13C) in an omnivorous consumer : effect of diet isotopic ratio (2008, background): “Hilderbrand et al. (1996) and Felicetti et al. (2003) showed that isotope ratios in bear plasma were linearly related to diet isotopic ratios.”
• Major components of grizzly bear diet across North America (2006, background): “Guard hairs provide a reasonable integration of yearly diet because they are grown over a period of up to 5 months (Felicetti et al. 2003b).”
• A Bayesian framework for stable isotope mixing models (2013, background): “Oxygen and hydrogen, δ18 O and δ2H, vary across multiple spatial scales and environmental gradients (Bowen and Revenaugh 2003; Deines et al. 2009; Finlay et al. 2010; Solomon et al. 2011, 2009).”
• Combining sources in stable isotope mixing models: alternative methods (2005, methodology): “Recent applications of this method include food web studies on bears (Felicetti et al. 2003; Ben-David et al. 2004), fish (Melville and Connolly 2003; Sara et al.”
• Proactive intervention to sustain high-elevation pine ecosystems threatened by white pine blister rust (2007, background): “Whitebark and limber pine are considered keystone species for their roles as an essential food source for black and grizzly bears (Ursus ssp.; Kendell 1983; McCutchen 1996; Felicetti et al. 2003), corvids (e.”
• Carnivory is Positively Correlated with Latitude among Omnivorous Mammals: Evidence from Brown Bears, Badgers and Pine Martens (2009, methodology): “We used equations relating bear plasma to diet derived by Felicetti et al. (2003) for bears raised in captivity on known diets ranging from fruits to meat: δ13C = – 10.86 + 0.42x (3) and δ15N = 5.28 + 0.88x (4) where x is the stable isotope value of the diet.”
• Variation in discrimination factors (Δ15N and Δ13C): the effect of diet isotopic values and applications for diet reconstruction (2009, background): “2005), the type of food (Webb, Hedges & Simpson 1998; Vander Zanden & Rasmussen 2001) and the diet isotopic ratio (Felicetti et al. 2003; Caut et al. 2008a).”