Results 11 to 20 of about 769,060 (242)

Could an event of extreme drought (2019-2020) affect the feeding ecology of Bubo magellanicus (Gmelin 1788) (Strigiformes: Strigidae) in a Mediterranean region of Chile? [PDF]

open access: yesPeerJ, 2023
Global warming generates changes in environmental conditions, affecting the spatial-temporal dynamics of precipitation and temperature. Droughts, events of low rainfall, are becoming more frequent and severe.
Sam Catchpole Ahumada   +2 more
doaj   +2 more sources

Not all jellyfish are equal: isotopic evidence for inter- and intraspecific variation in jellyfish trophic ecology [PDF]

open access: yesPeerJ, 2015
Jellyfish are highly topical within studies of pelagic food-webs and there is a growing realisation that their role is more complex than once thought.
Nicholas E.C. Fleming   +3 more
doaj   +2 more sources

Integrating siphonophores into marine food‐web ecology

open access: yesLimnology and Oceanography Letters, 2022
Siphonophores are a clade of understudied colonial hydrozoans (Cnidaria) that are abundant predators in oceanic ecosystems, with species present across the water column.
Elizabeth D. Hetherington   +4 more
doaj   +1 more source

Trophic structure in a seabird host-parasite food web: insights from stable isotope analyses [PDF]

open access: yes, 2010
Ecological studies on food webs rarely include parasites, partly due to the complexity and dimensionality of host-parasite interaction networks. Multiple co-occurring parasites can show different feeding strategies and thus lead to complex and cryptic ...
Gómez-Díaz Elena   +3 more
core   +1 more source

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

Trophic interactions of meso- and macrozooplankton and fish in the Iceland Sea as evaluated by fatty acid and stable isotope analysis [PDF]

open access: yes, 2012
A trophic study was carried out in August of 2007 and 2008 on the pelagic ecosystem in the Subarctic Iceland Sea. Carbon and nitrogen stable isotopes and fatty acid biomarkers were used to study trophic linkages and the trophic ecology of the most ...
Falk Petersen, Stig   +3 more
core   +1 more source

Trophic coherence determines food-web stability [PDF]

open access: yes, 2014
Why are large, complex ecosystems stable? Both theory and simulations of current models predict the onset of instability with growing size and complexity, so for decades it has been conjectured that ecosystems must have some unidentified structural ...
Johnson, Samuel   +6 more
core   +1 more source

Trophic niche-space imaging, using resource and consumer traits [PDF]

open access: yes, 2014
The strength of trophic (feeding) links between two species depends on the traits of both the consumer and the resource. But which traits of consumer and resource have to be measured to predict link strengths, and how many?
Rossberg, Axel G.   +5 more
core   +1 more source

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