MEASURING INDIVIDUAL-LEVEL RESOURCE SPECIALIZATION

By D. Bolnick, Louie H. Yang, J. Fordyce, Jeremy M. Davis, R. Svanbäck. 2002

645 citations recorded by the source corpus.

Subfields: Ecology, Genetics

View Paper: https://www.semanticscholar.org/paper/4dca4fbf1807db479fd73a23bef6a6293585ef5b

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Ecology

1. S. Bearhop
2. C. Layman
3. D. Hoeinghaus
4. Y. Cherel
5. S. Zeug
6. John J. Wiens
7. S. Newsome
8. Jennifer A. Dunne

In Genetics

1. D. Bolnick
2. C. Layman
3. R. Svanbäck
4. U. Brose
5. M. S. Araújo
6. D. Post
7. John J. Wiens
8. Pablo A. Marquet

Citations in the corpus

• Spatial and temporal scales of adaptive divergence in marine fishes and the implications for conservation (2006, background): “With respect to foraging, for example, species that appear to be highly generalized are composed of individual specialists with a far more narrow food resource niche in a given habitat than for the population as a whole (Bolnick et al., 2002).”
• Use of stable isotopes to quantify seasonal changes of trophic niche and levels of population and individual specialisation in seabirds (2010, methodology): “The relative degree of individual specialisation was subsequently measured as the proportion of TNW explained by within-individual variation, WIC/TNW (WIC/TNW varies from 0 [maximum variation among individuals] to 1 [no variation among individuals]; Bolnick et al. 2002, 2003).”
• Applying stable isotopes to examine food‐web structure: an overview of analytical tools (2012, methodology): “(2007) proposed a method that uses the variance in individual δ13C values in a population of consumers, and the δ13C values of resources, to calculate two indices of individual specialization that can be compared across different populations (Bolnick et al., 2002).”
• The Multidimensional Stoichiometric Niche (2017, background): “Such approaches could also be applied to explore individual specialization (Bolnick et al., 2002; Araujo et al., 2011), and to assess how populations and different genotypes vary in their fitness within a multidimensional stoichiometric space (Leal et al.”
• Intraspecific competition drives increased resource use diversity within a natural population (2007, methodology): “We then used regression to test whether morphologically divergent individuals (large distance from the population centroid) are also ecologically divergent (low diet overlap with the population; PS i ; Bolnick et al. 2002) within each enclosure.”
• Characterizing trophic ecology of generalist consumers: a case study of the invasive lionfish in The Bahamas (2012, background): “Much of this research focuses on individual specialization, i.e. when a generalist population is actually composed of specialized individuals whose niches are small subsets of the population niche (Bolnick et al. 2003).”
• Food webs: reconciling the structure and function of biodiversity. (2012, methodology): “This has been aided by novel approaches to the partitioning of variation in empirical studies [45].”
• The ecological causes of individual specialisation. (2011, methodology): “Many recent studies went beyond simply testing for the presence of individual specialisation and quantified its magnitude using recently proposed indices (Bolnick et al. 2002; Araújo et al. 2008).”
• Can stable isotope ratios provide for community-wide measures of trophic structure? Comment. (2008, methodology): “…dietary contributions may be standardized and used in multivariate analyses, combined in a series of metrics in a manner similar to that proposed by Layman et al. (2007a), or used in available individual-level (e.g., Bolnick et al. 2002) or community (e.g., Cornwell et al. 2006) approaches.”
• The Ecology of Individuals: Incidence and Implications of Individual Specialization (2002, methodology): “(PSi) between the resource distribution of the individual and the distribution of the population as a whole (Bolnick et al. 2002).”
• What determines the climatic niche width of species? The role of spatial and temporal climatic variation in three vertebrate clades (2013, methodology): “The WLS ratio is similar to the withinindividual component of the niche divided by the total niche width used in other papers (Bolnick et al., 2002, 2003; Araújo et al., 2011), but refers to localities rather than individuals.”
• Tools for quantifying isotopic niche space and dietary variation at the individual and population level (2012, neutral): “Traditionally, the total niche width (TNW) of a population has been defined as the sum of the WIC and BIC of diet (Roughgarden 1972), and the ratio of the WIC to the TNW (WIC/TNW) of a population has traditionally been used to evaluate individual specialization (Bolnick et al. 2002).”