Results 241 to 250 of about 323,005 (266)
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Investigating Isotopic Niche Space: Using rKIN for Stable Isotope Studies in Archaeology
Journal of Archaeological Method and Theory, 2021Archaeological applications of stable isotope data have become increasingly prevalent, and the use of these data continues to expand rapidly. Researchers are starting to find that recovering data for multiple elements provides additional insight and quantitative data for answering questions about past human activities and behaviors. Many stable isotope
Joshua R Robinson
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Isotopic niches do not follow the expectations of niche conservatism in the bird genus Cinclodes
Journal of Evolutionary Biology, 2022Abstract Phenotypic traits are expected to be more similar among closely related species than among species that diverged long ago (all else being equal). This pattern, known as phylogenetic niche conservatism, also applies to traits that are important to determine the niche of species.
Rader, Jonathan A., Matute, Daniel R.
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Marine Biology, 2014
This study tested for fluctuations on short-term consistency (within about 1 month) in the isotopic niche of a pelagic seabird species. Short-term consistency in the isotopic niche was assessed using a wide-ranging apex predator, the Cory's shearwaters Calonectris diomedea, along a 3-year study (2010-2012), during both the pre-laying and chick-rearing ...
Vitor Paiva +2 more
exaly +2 more sources
This study tested for fluctuations on short-term consistency (within about 1 month) in the isotopic niche of a pelagic seabird species. Short-term consistency in the isotopic niche was assessed using a wide-ranging apex predator, the Cory's shearwaters Calonectris diomedea, along a 3-year study (2010-2012), during both the pre-laying and chick-rearing ...
Vitor Paiva +2 more
exaly +2 more sources
Frontiers in Ecology and the Environment, 2007
Fifty years ago, GE Hutchinson defined the ecological niche as a hypervolume in n-dimensional space with environmental variables as axes. Ecologists have recently developed renewed interest in the concept, and technological advances now allow us to use stable isotope analyses to quantify these niche dimensions. Analogously, we define the isotopic niche
Seth D. Newsome +2 more
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Fifty years ago, GE Hutchinson defined the ecological niche as a hypervolume in n-dimensional space with environmental variables as axes. Ecologists have recently developed renewed interest in the concept, and technological advances now allow us to use stable isotope analyses to quantify these niche dimensions. Analogously, we define the isotopic niche
Seth D. Newsome +2 more
exaly +2 more sources
Isotopic niche mirrors trophic niche in a vertebrate island invader
Oecologia, 2012(Uploaded by Plazi for the Bat Literature Project) No abstract provided.
Marlenne A M, Rodríguez +1 more
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Overlap and partitioning of the ecological and isotopic niches
Oikos, 2010Recently, it was proposed that stable isotope patterns can be used to quantify the width of the ecological niche of animals. However, the potential effects of habitat use on isotopic patterns of consumers have not been fully explored and consequently isotopic patterns may yield deceptive estimates of niche width.
Elizabeth A. Flaherty, Merav Ben‐David
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rKIN: Kernel-based method for estimating isotopic niche size and overlap
Journal of Animal Ecology, 2020Abstract The isotopic niche of consumers represents biologically relevant information on resource and habitat use. Several tools have been developed to quantify niche size and overlap. Nonetheless, methods adapted by spatial ecologists to quantify animal home ranges can be modified for use in stable isotope ecology when data are not normally ...
Elizabeth Flaherty +2 more
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Individual variation of isotopic niches in grazing and browsing desert ungulates
Oecologia, 2015Ungulates often adjust their diet when food availability varies over time. However, it is poorly understood when and to what extent individuals change their diet and, if they do so, if all individuals of a population occupy distinct or similar dietary niches.
D, Lehmann +4 more
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Coastal niches for terrestrial predators: a stable isotope study
Canadian Journal of Zoology, 2010The purpose of this study was to identify the use of marine versus terrestrial food items by terrestrial arthropod predators on Baltic Sea shores. The inflow of marine nutrients in the area consists mainly of marine algal detritus and emerging aquatic insects (e.g., chironomids).
Kajsa Mellbrand, Peter A. Hambäck
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Isotopic niche metrics as indicators of toxic stress in two freshwater snails
Science of The Total Environment, 2014Descriptors of trophic niche and of food web structure and function have been suggested as integrative and sensitive endpoints of toxicant effects. In the present study, carbon and nitrogen stable isotope signatures were used to assess the effects of the dithiocarbamate fungicide thiram (35 and 170μg/L nominal concentrations) and of a petroleum ...
Yannick Bayona +5 more
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