Results 1 to 10 of about 4,167 (108)

Isotopic niche reflects stress-induced variability in physiological status [PDF]

open access: yesRoyal 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 Karlson   +2 more
exaly   +3 more sources

Within-population isotopic niche variation of mammalian herbivores over a body mass and habitat gradient [PDF]

open access: yesBMC Ecology and Evolution
Background Individuals within populations may have distinct ecological niches, leading to a partitioned population niche structure. Such structure occurs because of both extrinsic and intrinsic factors.
Runè van der Merwe   +2 more
doaj   +2 more sources

The α-minimum convex polygon as a relevant tool for isotopic niche statistics

open access: yesEcological 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.
Yves Letourneur, Pauline FEY
exaly   +3 more sources

Isotopic Niche of Three Sympatric Mustelids [PDF]

open access: yesLife
Although sympatric carnivores typically exhibit dietary differentiation to reduce interspecific competition, contemporary isotopic comparisons of European mustelids remain scarce. In this study, we present the first modern stable isotope analysis of hair
Linas Balčiauskas   +4 more
doaj   +2 more sources

Individual and population variation in isotopic niche between two sympatric cormorant species [PDF]

open access: yesPeerJ
Coexistence among sympatric, functionally similar species often hinges on niche differentiation, especially as resource competition intensifies during the breeding season.
Gabriela Piriz   +3 more
doaj   +3 more sources

Group-specific effect of interannual water level fluctuation on consumers trophic niche area [PDF]

open access: yesScientific Reports
The trophic niche area defines the consumer’s ability to utilize a range of food sources and their role in community. However, the trophic niche area might be influenced by a variety of biotic and abiotic factors.
Lukáš Veselý   +5 more
doaj   +2 more sources

Spatial and ontogenetic variation in isotopic niche among recovering fish communities revealed by Bayesian modeling. [PDF]

open access: yesPLoS 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

2D to 3D: Exploring Variation of Niche Dimensionality Across Consumers in a Coastal Arctic Ecosystem and Implications on Interpretation [PDF]

open access: yesEcology and Evolution
Each species occupies a distinct ecological niche, defined by a specific set of environmental conditions and resource requirements necessary for its survival and reproduction.
Paloma C. Carvalho   +13 more
doaj   +2 more sources

Isotopic trajectories and interspecific niche partitioning in tropical pelagic sharks

open access: yesGlobal Ecology and Conservation
Pelagic sharks are top predators with key role in the structure and functioning of ocean ecosystems. However, little is known on their assemblage-wide trophic ecology.
Yunkai Li   +2 more
exaly   +3 more sources

The application of stable carbon and nitrogen isotopes to assess the feeding ecology of long-finned pilot whales (Globicephala melas) in Scotland. [PDF]

open access: yesPLoS ONE
Knowledge of the feeding habits of cetaceans is critical to the development of system-wide conservation strategies in marine ecosystems, yet dietary data are often lacking.
Anna Sophie Kebke   +11 more
doaj   +2 more sources

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