Isotopic niche reflects stress-induced variability in physiological status [PDF]
Royal Society Open Science, 2018 The isotopic niche has become an established concept in trophic ecology. However, the assumptions behind this approach have rarely been evaluated.
Agnes M. L. Karlson +3 more
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Benthic Trophic Interactions in an Antarctic Shallow Water Ecosystem Affected by Recent Glacier Retreat. [PDF]
PLoS ONE, 2015 The western Antarctic Peninsula is experiencing strong environmental changes as a consequence of ongoing regional warming. Glaciers in the area are retreating rapidly and increased sediment-laden meltwater runoff threatens the benthic biodiversity at ...
Francesca Pasotti +5 more
doaj +26 more sources
Individual and population variation in isotopic niche between two sympatric cormorant species [PDF]
PeerJCoexistence among sympatric, functionally similar species often hinges on niche differentiation, especially as resource competition intensifies during the breeding season.
Gabriela Piriz +3 more
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Spatial and ontogenetic variation in isotopic niche among recovering fish communities revealed by Bayesian modeling. [PDF]
PLoS ONE, 2019 Exploitation and changing ocean conditions have resulted in altered species interactions and varied population dynamics within marine fish communities off northeast Newfoundland and southern Labrador, Canada.
Kyle J Krumsick, Jonathan A D Fisher
doaj +2 more sources
Intraguild niche partitioning in granivorous birds from the late past
Avian Research, 2023 Niche partitioning is a widespread ecological strategy within trophic guilds, ensuring the coexistence of sympatric species by reducing interspecific competition.
Ana B. Navarro +3 more
doaj +1 more source
Aquaculture Reports, 2021 In a 95-day, integrated rice-crayfish (Procambarus clarkii) culture experiment, the changes in the contribution of feed sources, intra-sexual isotopic niche width, inter-sexual isotopic niche overlap, and potential competition were analyzed.
Mingdi He, Feng Liu, Fang Wang
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The α-minimum convex polygon as a relevant tool for isotopic niche statistics
Ecological Indicators, 2021 Ecological (isotopic) niche refers to a surface in a two-dimensional space, where the axes correspond to environmental variables that reflect values of stable isotopes incorporated in an animal's tissues.
Pauline Fey +2 more
doaj +1 more source
An empirical evaluation of the utility of convex hull and standard ellipse areas for assessing population niche widths from stable isotope data. [PDF]
PLoS ONE, 2013 Stable isotope analyses are increasingly employed to characterise population niche widths. The convex hull area (TA) in a δ(13)C-δ(15)N biplot has been used as a measure of isotopic niche width, but concerns exist over its dependence on sample size and ...
Jari Syväranta +4 more
doaj +1 more source
FACETS, 2020 Sympatric communities of organisms may exploit different ecological niches to avoid intra- and interspecific competition. We examined the isotopic niches of American black ducks (Anas rubripes) and mallards (A.
Matthew D. English +5 more
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Reductions in the dietary niche of southern sea otters (Enhydra lutris nereis) from the Holocene to the Anthropocene. [PDF]
, 2020 The sea otter (Enhydra lutris) is a marine mammal hunted to near extinction during the 1800s. Despite their well-known modern importance as a keystone species, we know little about historical sea otter ecology.
Elliott Smith, Emma A +7 more
core +1 more source