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Isotopic niches support the resource breadth hypothesis [PDF]
Journal of Animal Ecology, 2017 SummaryBecause a broad spectrum of resource use allows species to persist in a wide range of habitat types, and thus permits them to occupy large geographical areas, and because broadly distributed species have access to more diverse resource bases, the resource breadth hypothesis posits that the diversity of resources used by organisms should be ...
Rader, Jonathan A. +5 more
openaire +3 more sources
Frontiers in Ecology and Evolution, 2023 IntroductionTropical rainforest species interact with each other and their environment over a wide range of spatiotemporal scales. However, our understanding of resource partitioning and the mechanisms of avian species coexistence is largely restricted ...
Elizabeth Yohannes +3 more
doaj +1 more source
Stable isotopes are quantitative indicators of trophic niche [PDF]
Ecology Letters, 2019 AbstractHette‐Tronquart (2019, Ecol. Lett.) raises three concerns about our interpretation of stable isotope data in Sheppard et al. (2018, Ecol. Lett., 21, 665). We feel that these concerns are based on comparisons that are unreasonable or ignore the ecological context from which the data were collected.
Harry H. Marshall +5 more
openaire +4 more sources
Biology, 2022 Widespread introductions of non-native species, including aquaculture and ornamental species, threaten biodiversity and ecosystem functioning by modifying the trophic structure of communities.
Fangmin Shuai, Jie Li
doaj +1 more source
Not all jellyfish are equal: isotopic evidence for inter- and intraspecific variation in jellyfish trophic ecology [PDF]
, 2015 Jellyfish are highly topical within studies of pelagic food-webs and there is a growing realisation that their role is more complex than once thought.
Fleming, Nicholas E.C. +3 more
core +6 more sources
Estimating niche width using stable isotopes in the face of habitat variability: a modelling case study in the marine environment. [PDF]
PLoS ONE, 2012 Distributions of stable isotopes have been used to infer an organism's trophic niche width, the 'isotopic niche', and examine resource partitioning. Spatial variation in the isotopic composition of prey may however confound the interpretation of isotopic
David O Cummings +4 more
doaj +1 more source
Isotopic niche partitioning and individual specialization in an Arctic raptor guild [PDF]
Oecologia, 2021 Abstract Intra- and inter-specific resource partitioning within predator communities is a fundamental component of trophic ecology, and one proposed mechanism for how populations partition resources is through individual niche variation. The Niche Variation Hypothesis (NVH) predicts that interindividual trait variation leads to functional trade-
Devin L. Johnson +4 more
openaire +2 more sources
The marine side of a terrestrial carnivore: intra-population variation in use of allochthonous resources by arctic foxes. [PDF]
PLoS ONE, 2012 Inter-individual variation in diet within generalist animal populations is thought to be a widespread phenomenon but its potential causes are poorly known. Inter-individual variation can be amplified by the availability and use of allochthonous resources,
Arnaud Tarroux +3 more
doaj +1 more source
Isotopic niche variability in macroconsumers of the East Scotia Ridge (Southern Ocean) hydrothermal vents: What more can we learn from an ellipse? [PDF]
, 2016 Aspects of between-individual trophic niche width can be explored through the isotopic niche concept. In many cases isotopic variability can be influenced by the scale of sampling and biological characteristics including body size or sex.
McGill, R.A.R. +4 more
core +2 more sources
Isotopic niche partitioning between two apex predators over time [PDF]
Journal of Animal Ecology, 2017 Summary Stable isotope analyses have become an important tool in reconstructing diets, analysing resource use patterns, elucidating trophic relations among predators and understanding the structure of food webs. Here, we use stable carbon and nitrogen isotope ratios in bone collagen to reconstruct and compare the isotopic niches of adult South ...
Massimiliano Drago +8 more
openaire +4 more sources