Measuring trophic niche and resource overlap
Trophic Niche Breadth and Niche Overlap among Different Guilds of Spider Species in Wheat Agroecosystem
... Trophic niche breadth and niche overlap of nine spiders including Pardosa timidula (Roewer, 1951), Hippasa olivacea (Thorell, 1887), Plexippus paykulli (Audouin, 1826), Oxyopes javanus ...
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Feeding habits and trophic niche overlap of the aquatic Orthoptera associated to macrophytes
... reflects resource use and can provide insights into habitat utilization and competitive ...show trophic niche ...their trophic niche breadth and overlap were analyzed from the ...
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Measuring ecological niche overlap from occurrence and spatial environmental data
... Name Description Areas of Calibration PCA-occ Principal component analysis (Pearson, 1901) transforms a number of correlated variables into a small number of uncorrelated linear combinations of the original variables ...
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Investigating trophic ecology and dietary niche overlap among morphs of Lake Trout in Lake Superior
... understood trophic ecology, it is difficult to predict how humpers interact with other sympatric Lake Trout ...the trophic ecology of humpers to other Lake Trout morphs ...and trophic position ...
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Measuring ecological niche overlap from occurrence and spatial environmental. datageb_ RESEARCH PAPER
... of niche equivalency cannot be rejected. The niche similarity test differs from the equivalency test because the former examines whether the overlap between observed niches in two ranges is different ...
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Low trophic niche overlap among trap-nesting bee species (Hymenoptera: Anthophila) in a semideciduous forest fragment
... no overlap in diet. Within the community, the diet overlap was higher in closely related species, the two Tetrapedia species and the two Centris (Heterocentris ) species, than in the other sampled ...low ...
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Pollination niche overlap between a parasitic plant and its host
... limiting resource for these ...pollination niche overlap in a plant parasite system and we suggest avenues for future research in relation to pollination and other shared interactions between ...
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Evidence for trophic niche partitioning among three temperate gorgonian octocorals
... to trophic par- ...in trophic divergence if the concentrations of different particles change between nearshore and offshore ...exhibits niche overlap with ...but niche divergence when ...
Food niche overlap among neotropical frugivorous bats in Costa Rica
... food niche breadth and overlap indices. To estimate food niche breadth, Levin´s standardized measure- ment was used (Colwell and Futuyma ...food niche overlap index. This index varies ...
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Individual foraging strategies reveal niche overlap between endangered Galapagos pinnipeds
... food-niche overlap between the two species was almost ...and trophic position (stable isotopes) [23,32], finding little to no overlap at the population ...
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The communal nursery area paradigm revisited: niche overlap versus niche separation among juvenile shark species of Cleveland Bay
... safely reside during a longer early life stage. I propose that communal nurseries have the potential to provide a combination of the two. When juveniles of several species inhabit one communal nursery area but exploit ...
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Niche engineering reveals complementary resource use
... between niche differences among species and emergent biodiversity effects (Finke and Snyder ...through niche partitioning (Strong et ...one niche axis, degree of overlap in foraging-space use, ...
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Trophic niche partitioning of littoral fish species from the rocky intertidal of Helgoland, Germany
... the trophic ecology of littoral fish species were investigated in the rocky intertidal of Hel- goland island (North ...investigated trophic niche partitioning of common coexisting littoral fish ...
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Trophic niche partitioning of cryptic species of long-eared bats in Switzerland: implications for conservation
... and niche breadths of Swiss long-eared bats are reflected in our unique niche overlap estimation for the sole situation where two out of the three species occurred in sympatry, and even in syntopy ...
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Initial response of fish trophic niche to hydrological alteration in the upstream of Three Gorges Dam
... basal resource, respectively, were absent at the lower reach of the river, likely as the result of de- creasing availability of organic ...found trophic diversity in an African estuary increased as greater ...
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The role of water clarity in structuring niche dimensions and overlap between smallmouth bass and walleye
... isotopic niche dimensions would contract as waters became ...of trophic levels (NR E ) in clearer waters, which is consistent with laboratory observations of increased selectivity for free-swimming (rather ...
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Trophic niche in a raptor species: The relationship between diet diversity, habitat diversity and territory quality
... reducing resource-use overlap and competition [ 9 , 12 ...higher trophic levels, such as predators, due to a higher intraspecific competition for resources [ 13 – 15 ...
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Isotopic evidence for dietary niche overlap between barking deer and four-horned antelope in Nepal
... of animals’ faeces has been widely used as a reliable source of information for dietary signatures over a range of tem- poral and spatial scales. Faeces retain isotopic dietary infor- mation of several hours to days, ...
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Predicting trophic guild and diet overlap from functional traits: statistics, opportunities and limitations for marine ecology
... diet overlap from functional dis- tances between species ...fish trophic guilds were accurately predicted by an RF classifier, even with a limited number of traits, when no more than 7 guilds were ...finer ...
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Habitat specialisation, niche overlap and site fidelity in a vulnerable family of coral reef fishes: the cardinalfish (Apogonidae)
... adaptations for living in altered reef habitats. To evaluate whether predation vulnerability affects habitat use and site fidelity, differences in survivorship should be compared among different sizes of P. cylindrica ...
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