Consistent patterns of trophic niche specialisation in host populations infected with a non-native copepod parasite. [PDF]
, 2017 Populations of generalist species often comprise of smaller sub-sets of relatively specialised individuals whose niches comprise small sub-sets of the overall population niche.
Alston +9 more
core +1 more source
Bioenergetics, Trophic Ecology, and Niche Separation of Tunas
, 2016 Tunas are highly specialized predators that have evolved numerous adaptations for a lifestyle that requires large amounts of energy consumption. Here we review our understanding of the bioenergetics and feeding dynamics of tunas on a global scale, with an emphasis on yellowfin, bigeye, skipjack, albacore, and Atlantic bluefin tunas.
Olson, R. J. +7 more
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Trophic consequences of introduced species: comparative impacts of increased inter-specific versus intra-specific competitive interactions [PDF]
, 2017 1. Invasive species can cause substantial ecological impacts on native biodiversity. Whilst ecological theory attempts to explain the processes involved in the trophic integration of invaders into native food webs and their competitive impacts on ...
Carnus J.‐M. +9 more
core +2 more sources
Trophic ecology and niche overlap of two sympatric species of Rhamdia (Siluriformes, Heptapteridae) from northeast Oaxaca, Mexico [PDF]
Neotropical Biology and ConservationThe 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
Isotopic niche is not equal to trophic niche
Ecology Letters, 2019 AbstractThe work of Sheppard et al. (Ecol. Lett., 21, 2018, 1395) relies on the strong assumption that isotopic niche is equal to trophic niche. Here I raise three main concerns showing that classic hypotheses built upon trophic niche cannot be directly interpreted in isotopic space.
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Frontiers in Ecology and Evolution, 2023 Although the concept of trophic interactions has been used for a long time, there are still considerable gaps in our understanding of the effect of various environmental factors on trophic interactions within river fish assemblages.
Petra Horka +6 more
doaj +1 more source
Hydrothermal activity lowers trophic diversity in Antarctic sedimented hydrothermal vents [PDF]
, 2016 Sedimented hydrothermal vents are those in which hydrothermal fluid vents through sediment and are among the least studied deep-sea ecosystems. We present a combination of microbial and biochemical data to assess trophodynamics between and within ...
Bell, James B. +6 more
core +1 more source
Is the relationship between body size and trophic niche position time-invariant in a predatory fish? First stable isotope evidence. [PDF]
PLoS ONE, 2010 Characterizing relationships between individual body size and trophic niche position is essential for understanding how population and food-web dynamics are mediated by size-dependent trophic interactions.
Takefumi Nakazawa +6 more
doaj +1 more source
Provenance does matter: links between winter trophic segregation and the migratory origins of European robins [PDF]
, 2016 Amongst migratory species, it is common to find individuals from different populations or geographical origins sharing staging or wintering areas.
Bearhop, Stuart, +7 more
core +1 more source
Food webs and the dimensionality of trophic niche space [PDF]
Proceedings of the National Academy of Sciences, 1977 If the trophic niche of a kind of organism is a connected region in niche space, then it is possible for trophic niche overlaps to be described in a one-dimensional niche space if and only if the trophic niche overlap graph is an interval graph. An analysis of 30 food webs, using the combinatorial theory of interval graphs, suggests that a niche space ...
openaire +2 more sources