Intrapopulation variation in gray wolf isotope (δ15N and δ13C) profiles: implications for the ecology of individuals

By E. J. M. Urton, Keith A. Hobson. Oecologia, 2005

159 citations recorded by the source corpus.

Subfields: Ecology

View Paper: https://www.semanticscholar.org/paper/09ecc993a9c5d1d740a586b702152922ffcfd942

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In Ecology

Citations in the corpus

Carnivore-specific stable isotope variables and variation in the foraging ecology of modern and ancient wolf populations: case studies from Isle Royale, Minnesota, and La Brea (2007, background): “North American wolf populations: comparisons of collagen and hair d13C and d15N values Intrapopulation isotopic variability may provide a good approximation of dietary breadth in wolves (Urton and Hobson 2005).”
Can carbon-13 in large herbivores reflect the canopy effect in temperate and boreal ecosystems? Evidence from modern and ancient ungulates (2008, methodology): “Indeed, reindeer, which consume high amounts of lichen, had more positive δ(13)C values than coeval ruminants, as illustrated by our results from central Saskatchewan and by other works (e.g., Szepanski et al., 1999; Bocherens, 2000; BenDavid et al., 2001; Urton and Hobson, 2005).”
Incorporating uncertainty and prior information into stable isotope mixing models. (2008, background): “However, within a population, differences in diet lead to differences in the isotopic signatures of individuals (Angerbjörn et al. 1994; Matthews & Mazumder 2004; Urton & Hobson 2005; Araújo et al. 2007; Layman et al. 2007).”
Long-term movement patterns and trophic ecology of blacktip reef sharks (Carcharhinus melanopterus) at Palmyra Atoll (2010, background): “…obtained from Palmyra, D.J. McCauley unpublished data), but the high inter individual variability in 13 C suggests a range of dietary inputs, although confirming this will require a more detailed examination of isotopic signatures of prey species (e.g. Urton and Hobson, 2005; Woo et al., 2008).”
Stable isotope characterization of mammalian predator–prey relationships in a South African savanna (2007, background): “Whilst the data presented should be considered preliminary, they demonstrate clearly the potential applications of this approach, and we discuss implications and present guidelines for refining isotope-based models of mammalian predator–prey food webs.”
A practical introduction to stable-isotope analysis for seabird biologists: Approaches, cautions and caveats (2009, background): “…heterogeneity has received some attention in nonmarine birds, with δD (ratio of hydrogen–deuterium) being assessed within feathers (Wassenaar & Hobson 2006; Smith et al. 2008, 2009), but interest is also emerging in how within- and betweenindividual isotope heterogeneity both affect the…”
A three-isotope approach to disentangling the diet of a generalist consumer: the yellow-legged gull in northwest Spain (2010, methodology): “…isotopes, this model has been thoroughly applied to infer the feeding ecology of invertebrates (Laurand and Riera 2006), marine mammals (Hückstädt et al. 2007), birds (Inger et al. 2006a, b; Navarro et al. 2009) and several terrestrial vertebrate species (Caut et al. 2008; Urton and Hobson 2005).”