Results 11 to 20 of about 323,005 (266)
Exploring the isotopic niche: isotopic variance, physiological incorporation, and the temporal dynamics of foraging [PDF]
Frontiers in Ecology and Evolution, 2016 Consumer foraging behaviors are dynamic, changing in response to prey availability, seasonality, competition, and even the consumer's physiological state.
Justin Douglas Yeakel +5 more
doaj +4 more sources
Mother-Hatchling Isotopic Relationship in Green Turtle: Isotopic Niche-based Modelling. [PDF]
Zool StudThe isotopic discrimination between a mother and her hatchlings has been modelled in various vertebrates, including sea turtles. In addition to the linear relation between δ13C and δ15N isotope values of the mother – hatchling couple, there is missing ...
Özdilek ŞY, Sönmez B, Mestav B.
europepmc +14 more sources
Isotopic niche partitioning in two sympatric howler monkey species [PDF]
American Journal of Physical Anthropology, 2020 ObjectivesEcological similarity between species can lead to interspecific trophic competition. However, when ecologically similar species coexist, they may differ in foraging strategies and habitat use, which can lead to niche partitioning.
Ariadna Rangel‐Negrín +13 more
core +5 more sources
Trophic Niche Differentiation in Rodents and Marsupials Revealed by Stable Isotopes. [PDF]
PLoS ONE, 2016 Tropical rainforests support the greatest diversity of small mammals in the world, yet we have little understanding about the mechanisms that promote the coexistence of species.
Mauro Galetti +4 more
doaj +6 more sources
Isotopic niches of sympatric native and exotic fish species in a Neotropical floodplain [PDF]
Anais da Academia Brasileira de Ciências, 2015 This study investigated the isotopic niches of two fish species, one exotic and one native. It was hypothesized that these species would show little or no isotopic niche overlap.
Juliana S. Philippsen +2 more
doaj +4 more sources
Endangered Species ResearchAssessing the trophic relationships among sympatric marine predators is crucial for ecosystem and fisheries management. This study used carbon and nitrogen stable isotope analysis to elucidate resource use and sharing of dusky Carcharhinus obscurus ...
RS Lipscombe, V Raoult, PA Butcher
doaj +2 more sources
Isotopic Niche of Syntopic Granivores in Commercial Orchards and Meadows. [PDF]
Animals (Basel), 2021 In agricultural habitats, diets and trophic positions of syntopic granivorous small mammals are not known sufficiently. Agroecosystems may be quite complex isotopically and the most complex situation concerns the nitrogen-15 isotope as δ15N values are influenced by many internal and external fluxes.
Balčiauskas L +5 more
europepmc +5 more sources
Parasite effects on host’s trophic and isotopic niches [PDF]
Trends in Parasitology, 2023 Wild animals are usually infected with parasites that can alter their hosts' trophic niches in food webs as can be seen from stable isotope analyses of infected versus uninfected individuals. The mechanisms influencing these effects of parasites on host isotopic values are not fully understood.
Ana Born-Torrijos +5 more
openaire +3 more sources
Isotopic niche overlap between sympatric Australian snubfin and humpback dolphins. [PDF]
Ecol Evol, 2022 AbstractEcological niche theory predicts the coexistence of closely related species is promoted by resource partitioning in space and time. Australian snubfin (Orcaella heinsohni) and humpback (Sousa sahulensis) dolphins live in sympatry throughout most of their range in northern Australian waters. We compared stable isotope ratios of carbon (δ13C) and
Parra GJ +3 more
europepmc +5 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