Results 21 to 30 of about 4,759 (257)

Trophic niche overlap between two Chilean endemic species of Trichomycterus (Teleostei: Siluriformes) [PDF]

open access: yesRevista chilena de historia natural, 2007
Trichomycterus areolatus y Trichomycterus chiltoni son peces Siluriformes endemicos de Chile, siendo las unicas especies chilenas conocidas de este genero que coexisten en simpatria. Se encontro alta sobreposicion de nicho trofico entre estas dos especies.
Scott, Sergio   +2 more
openaire   +3 more sources

Trophic ecology and niche overlap of two sympatric species of Rhamdia (Siluriformes, Heptapteridae) from northeast Oaxaca, Mexico [PDF]

open access: yesNeotropical Biology and Conservation
The trophic ecology of fishes in the genus Rhamdia remains poorly reported. Here, we aim to describe the diet composition and infer the trophic levels, niche breadth, and niche overlap between Rhamdia guatemalensis and Rhamdia laticauda in northeast ...
César Camilo Julián-Caballero   +3 more
doaj   +3 more sources

Feeding habits and trophic niche overlap in a Carnivora community of Hungary [PDF]

open access: yesActa Theriologica, 1999
The seasonal feeding habits of the red fox Vulpes vulpes (Linnaeus, 1758), the stone marten Martes foina (Erxleben, 1777), the stoat Mustela erminea Linnaeus, 1758, the badger Meles meles (Linnaeus, 1758) and the otter Lutra lutra(Linnaeus, 1758) were studied in south-west Hungary, in the course of four years.
Lanszki, J.   +3 more
openaire   +1 more source

Invasive signal crayfish and native noble crayfish show trophic niche shrinkage in sympatry [PDF]

open access: yesNeoBiota
Studying the coexistence of native species and invasive species with similar functional traits, habitat usage, and feeding habits is crucial for understanding the dynamics of invasion and ecological changes in the invaded ecosystem.
Fabio Ercoli   +5 more
doaj   +3 more sources

Trophic Niche Partitioning of Five Sciaenidae Species Sampled in Zhoushan Archipelago Waters via Stable Isotope Analysis

open access: yesFrontiers in Marine Science, 2022
Sciaenid fishes are usually associated with large freshwater inputs and are the most important economic fish on the coastal shelf off mainland China.
Jing Wang   +12 more
doaj   +1 more source

Trophic niche overlap among scavengers in Patagonia supports the condor-vulture competition hypothesis [PDF]

open access: yesBird Conservation International, 2017
SummaryAnimals that share resources tend to use different foraging strategies in order to decrease potential competition. Scavenging birds using the same nutritional resources can segregate into different space and time scales. However, it has been suggested that when the species do not co-evolve to achieve such segregation competition may result.
Ballejo, Fernando   +3 more
openaire   +3 more sources

Diet and trophic niche of Lithobates catesbeianus (Amphibia: Anura)

open access: yesZoologia (Curitiba), 2012
Lithobates catesbeianus (Shaw, 1802) is an invasive anuran introduced in Brazil that is associated with the displacement and the decline of populations of native species worldwide.
Peterson T. Leivas   +2 more
doaj   +1 more source

Variations of trophic structure and niche space in fish community along a highly regulated subtropical large river

open access: yesEcology 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

Comparison of Trophic Niche Position, Size, and Overlap in an Assemblage of Pacific Rockfish (Genus Sebastes) for Testing Community Composition Models

open access: yesDiversity, 2022
Rockfish (genus Sebastes) assemblages can inform mechanisms of coexistence and maintenance of diversity in ecological communities. Coexistence theory characterizes ecological assemblages as following either a deterministic niche differentiation model, or
Andrew D. Suchomel, Mark C. Belk
doaj   +1 more source

Lizard assemblage from a sand dune habitat from southeastern Brazil: a niche overlap analysis

open access: yesAnais da Academia Brasileira de Ciências, 2016
Communities are structured by interactions of historical and ecological factors, which influence the use of different resources in time and space. We acquired data on time of activity, microhabitat use and diet of a lizard assemblage from a sand dune ...
GISELE R. WINCK   +4 more
doaj   +1 more source

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