Results 41 to 50 of about 1,314,808 (196)

Metabarcoding and morphological analysis of diets of mesopelagic fishes in the NW Atlantic Slope Water

open access: yesFrontiers in Marine Science
DNA metabarcoding and morphological taxonomic (microscopic) analysis of the gut contents was used to examine diet diversity of seven species of fishes collected from mesopelagic depths (200-1000 m) in the NW Atlantic Ocean Slope Water during Summer 2018 ...
Ann Bucklin   +14 more
doaj   +1 more source

Using food-web theory to conserve ecosystems [PDF]

open access: yes, 2015
© 2016, Nature Publishing Group. All rights reserved.Food-web theory can be a powerful guide to the management of complex ecosystems. However, we show that indices of species importance common in food-web and network theory can be a poor guide to ...
McDonald-Madden, E, Possingham, HP
core   +1 more source

The Food Web of Potter Cove (Antarctica): complexity, structure and function [PDF]

open access: yes, 2018
Knowledge of the food web structure and complexity are central to better understand ecosystem functioning. A food-web approach includes both species and energy flows among them, providing a natural framework for characterizing species’ ecological roles ...
Barrera Oro, Esteban   +14 more
core   +2 more sources

Myctophid Fish (Family Myctophidae) Are Central Consumers in the Food Web of the Scotia Sea (Southern Ocean)

open access: yesFrontiers in Marine Science, 2019
Myctophids are the most abundant and diverse mesopelagic fishes in the Southern Ocean. They are a conduit of energy between primary consumers and higher marine predators, and between the surface layers and the mesopelagic depths.
Ryan A. Saunders   +3 more
doaj   +1 more source

A Statistical Social Network Model for Consumption Data in Food Webs

open access: yes, 2013
We adapt existing statistical modeling techniques for social networks to study consumption data observed in trophic food webs. These data describe the feeding volume (non-negative) among organisms grouped into nodes, called trophic species, that form the
Anton H. Westveld   +34 more
core   +1 more source

Effect of multiple disturbances on food web vulnerability to biodiversity loss in detritus-based systems [PDF]

open access: yes, 2015
Global biodiversity is affected by human pressure and climate change, and the present rate of biodiversity loss is probably higher than ever before. Community composition is also changing, and interspecific interactions are under severe pressure.
Calizza, Edoardo   +2 more
core   +1 more source

Amino Acid δ15N Can Detect Diet Effects on Pollution Risks for Yellow-Legged Gulls Overlooked by Trophic Position

open access: yesFrontiers in Marine Science, 2021
The use of top-consumers as bioindicators of the health of food webs is hampered by uncertainties in their effective use of resources. In this study, the abundance of stable nitrogen isotopes in amino acids from homogenised eggs of the Yellow-legged Gull
Antonio Bode   +3 more
doaj   +1 more source

Persistence of complex food webs in metacommunities [PDF]

open access: yes, 2012
Metacommunity theory is considered a promising approach for explaining species diversity and food web complexity. Recently Pillai et al. proposed a simple modeling framework for the dynamics of food webs at the metacommunity level.
Böhme, Gesa A., Gross, Thilo
core   +1 more source

Fins are relevant non-lethal surrogates for muscle to measure stable isotopes in amphibians

open access: yesKnowledge and Management of Aquatic Ecosystems, 2019
Stable isotope analyses (SIA) are now widely used in ecology research to quantify the trophic implications of a large range of ecological processes.
Bélouard Nadège   +4 more
doaj   +1 more source

The influence of nutrient enrichment on riverine food web function and stability

open access: yesEcology and Evolution, 2021
Nutrient enrichment of rivers and lakes has been increasing rapidly over the past few decades, primarily because of agricultural intensification. Although nutrient enrichment is known to drive excessive algal and microbial growth, which can directly and ...
Adam D. Canning, Russell G. Death
doaj   +1 more source

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