Results 11 to 20 of about 65,254 (294)
Intersexual trophic niche partitioning in an ant-eating spider (Araneae: Zodariidae). [PDF]
PLoS ONE, 2011 Divergence in trophic niche between the sexes may function to reduce competition between the sexes ("intersexual niche partitioning hypothesis"), or may be result from differential selection among the sexes on maximizing reproductive output ("sexual ...
Stano Pekár +2 more
doaj +4 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
The trophic niche of subterranean populations of Speleomantes italicus. [PDF]
Sci Rep, 2022 AbstractThe determination of a species trophic niche can clarify its functional role within a food web and how prey resources are used in relation with the spatial and temporal variability of environmental conditions. This information may result particularly useful for the implementation of conservation plans of endangered species having a cryptic ...
Lunghi E +6 more
europepmc +9 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
Estimation of trophic niches in myrmecophagous spider predators [PDF]
Scientific Reports, 2020 AbstractAmong spiders, taxonomically the most diversified group of terrestrial predators, only a few species are stenophagous and feed on ants. The levels of stenophagy and ant-specialisation vary among such species. To investigate whether stenophagy is only a result of a local specialisation both fundamental and realised trophic niches need to be ...
Dušátková, Lenka Petráková +4 more
openaire +3 more sources
Trophic Niches, Trophic Positions, and Niche Overlaps between Non-Native and Native Fish Species in a Subalpine Lake [PDF]
Water, 2020 In the last century, Italian freshwater ecosystems have been invaded by several non-native fish species. In the subalpine Lake Mergozzo (northern Italy), several recently introduced non-native species dramatically expanded their populations. We used carbon and nitrogen stable isotopes to describe the isotopic niches and trophic positions of native and ...
Cicala +12 more
openaire +5 more sources
Stable isotopes are quantitative indicators of trophic niche. [PDF]
Ecol Lett, 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.
Marshall HH +5 more
europepmc +6 more sources
Isotope niche dimension and trophic overlap between bigheaded carps and native filter-feeding fish in the lower Missouri River, USA. [PDF]
PLoS ONE, 2018 Stable carbon and nitrogen isotope values (δ13C and δ15N) were used to evaluate trophic niche overlap between two filter-feeding fishes (known together as bigheaded carp) native to China, silver carp (Hypophthalmichthys molitrix) and bighead carp ...
Jianzhu Wang +4 more
doaj +1 more source
Ecology and Evolution, 2022 The trophic interactions between consumers and resources play a vital role in the stability of communities. In river systems, fragmentation of natural habitats and environmental changes alters the energy basis and community composition, consequently ...
Huijun Ru +5 more
doaj +1 more source
Parasitism as a Driver of Trophic Niche Specialisation [PDF]
Trends in Parasitology, 2016 The population trophic niche of free-living species can be subdivided into smaller niches comprising individuals specialising on specific food items. The roles of parasites in creating these specialised subgroups remain unclear. Intrapopulation differences in parasite infections can develop from specialist individuals within populations.
Britton, J. Robert, Andreou, Demetra
openaire +3 more sources