Determining trophic niche width: a novel approach using stable isotope analysis

By S. Bearhop, C. Adams, Susan Waldron, Richard A. Fuller, H. Macleod. 2004

1,379 citations recorded by the source corpus.

View Paper: https://www.semanticscholar.org/paper/c0a36defb3bf7b5a3256260e36000b7d2fb4f270

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In Atmospheric Science

In Ecology

Citations in the corpus

Annual and seasonal consistency in the feeding ecology of an opportunistic species, the yellow-legged gull Larus michahellis (2014, methodology): “However, gulls exhibited substantial interannual differences in the homogeneity of variances in both δ13C and δ15N (Levene’s test; δ13C: F1,50 = 5.0, p = 0.030; δ15N: F1,50 = 7.8, p = 0.007), which provides a measure of niche width (see Bearhop et al. 2004).”
Fifty years later: trophic ecology and niche overlap of a native and non-indigenous fish species in the western basin of Lake Erie (2013, methodology): “Stomach content analysis, however, is not without limitations and only provides a snapshot of diet previous to the time of capture, limited by empty stomachs and biased by low sample sizes (Bearhop et al. 2004).”
Can stable isotope ratios provide for community-wide measures of trophic structure? (2007, methodology): “In reality, each species is composed of a cloud of points reflecting the degree of trophic generality among individuals of each species (Bolnick et al. 2003, Bearhop et al. 2004, Matthews and Mazumder 2004).”
Can stable isotope ratios provide for community-wide measures of trophic structure? Comment. (2008, positive): “…isotopes in food web studies have been mostly qualitative to date, prompting the recent development of quantitative approaches to investigate different aspects of trophic ecology and food web structure using stable isotope data (e.g., Bearhop et al. 2004, Newsome et al. 2007, Schmidt et al. 2007).”
Intrapopulation variation in gray wolf isotope (δ15N and δ13C) profiles: implications for the ecology of individuals (2005, methodology): “We were able to compare directly individuals along a single diversity scale over a known temporal integration period fulfilling many important assumptions regarding the measurement of species niche width (Bearhop et al. 2004).”
Exploring the Isotopic Niche: Isotopic Variance, Physiological Incorporation, and the Temporal Dynamics of Foraging (2015, background): “Here and henceforth, we assume that the isotope ratios under consideration follow dietary pathways such that the isotopic niche is synonymous with the trophic niche [11].”
Trophic relationships along a bathymetric gradient at the deep-sea observatory HAUSGARTEN (2009, background): “Conventionally expressed as d15N (%), the ratio of the nitrogen isotopes 15N to 14N generally exhibits a stepwise enrichment between 2.5 and 5% per trophic step (Bearhop et al., 2004).”
Comparing isotopic niche widths among and within communities: SIBER - Stable Isotope Bayesian Ellipses in R. (2011, background): “Recently, it has been argued that location on these axes may be quantified using stable isotopic ratios (Bolnick et al. 2003; Bearhop et al. 2004) and have been formalized in the concept of the ‘isotopic niche’ (Newsome et al.”
The diet composition of immature loggerheads: Insights on trophic niche, growth rates, and fisheries interactions (2009, background): “Generally, δ(15)N is used to determine trophic relationships among species and/or to characterize the breadth and complexities of the trophic niche occupied by a particular consumer(s) within a food web (DeNiro and Epstein, 1981; Bearhop et al., 2004), while δ(13)C is used to determine carbon pathwa”
Overlap and partitioning of the ecological and isotopic niches (2010, background): “In contrast, Bearhop et al. (2004) predicted that habitat generalists would exhibit more variation in their isotopic signatures than habitat specialists.”
Inter-colony movements, at-sea behaviour and foraging in an immature seabird: results from GPS-PPT tracking, radio-tracking and stable isotope analysis (2011, methodology): “Gradients in these isotope ratios (expressed as 13C and 15N) are reXected in the tissues of consumers in a predictable fashion and provide a robust method for characterising the isotopic niche of individual animals (Bearhop et al. 2004).”
Niche segregation of coexisting Arctic charr (Salvelinus alpinus) and brown trout (Salmo trutta) constrains food web coupling in subarctic lakes (2013, background): “, 2012 and references therein), can be used as a convenient measure of the trophic niche width of a population and the individual specialisation within (Bearhop et al., 2004; Araújo et al., 2007; Jackson et al., 2011).”
Functional diversity of crustacean zooplankton communities: towards a trait‐based classification (2007, methodology): “The use of newer food web determination techniques, such as stable isotopes, may be particularly fruitful for the characterisation of the food sources of zooplankton within lakes of interest in the near future (Bearhop et al., 2004), and such information could be included in an expanded functional c”
Trophic niches of thirteen damselfishes (Pomacentridae) at the Grand Récif of Toliara, Madagascar (2009, background): “Although P. baenschi and P. trilineatus belong to the same feeding group (group B), stable isotope analysis suggests that their trophic niche widths are different ( Bearhop et al. 2004 ).”