Results 41 to 50 of about 164,347 (318)

Competition and Environmental Stress Impacts on Trophic Performance of Three Sympatric Insectivorous Lizard Species in Eastern Spain

open access: yesSci
Trophic ecology is an important aspect to consider when studying interactions between species, especially in ecologically similar species. We studied the trophic ecology of three sympatric insectivorous lizards in a dune system in the Eastern Iberian ...
Robby M. Drechsler, Juan S. Monrós
doaj   +1 more source

Trophodynamics as a Tool for Understanding Coral Reef Ecosystems

open access: yesFrontiers in Marine Science, 2018
The increased frequency of publications concerning trophic ecology of coral reefs suggests a degree of interest in the role species and functional groups play in energy flow within these systems.
Stacy L. Bierwagen   +5 more
doaj   +1 more source

Embracing variability in amino acid δ15N fractionation: mechanisms, implications, and applications for trophic ecology

open access: yesEcosphere, 2016
Compound‐specific stable isotope analysis (CSIA) of individual amino acids (AAs) has become a powerful analytical tool in trophic ecology. Heavily fractionating “trophic” AAs (e.g., glutamic acid: Glu) provide a robust indicator of trophic transfer ...
Kelton W. McMahon, Matthew D. McCarthy
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

Solving the woolly mammoth conundrum: amino acid 15N-enrichment suggests a distinct forage or habitat [PDF]

open access: yes, 2015
Understanding woolly mammoth ecology is key to understanding Pleistocene community dynamics and evaluating the roles of human hunting and climate change in late Quaternary megafaunal extinctions. Previous isotopic studies of mammoths’ diet and physiology
Longstaffe, Fred J   +3 more
core   +2 more sources

Evaluation of the Dual Impact of Nanotechnologies on Health and Environment Through Alternative Bridging Models

open access: yesAdvanced Healthcare Materials, EarlyView.
This review explores how alternative invertebrate and small‐vertebrate models advance the evaluation of nanomaterials across medicine and environmental science. By bridging cellular and organismal levels, these models enable integrated assessment of toxicity, biodistribution, and therapeutic performance.
Marie Celine Lefevre   +3 more
wiley   +1 more source

Stable Isotope Analyses in Aquatic Ecology (a review) [PDF]

open access: yesЖурнал Сибирского федерального университета: Серия Биология, 2009
Theory and practice of analyses of stable isotopes of carbon and nitrogen for food trophic studies in aquatic ecology are regarded basing on literature, published primarily in the last decade.
Michail I. Gladyshev
doaj  

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

PICES Press, Vol. 8, No. 2, July 2000 [PDF]

open access: yes, 2000
Beyond El Nino Conference The status of the Bering Sea: June - December, 1999 The state of the western North Pacific in the second half of 1999 The state of the eastern North Pacific since autumn 1999 Project Argo Report of the ICES Zooplankton

core  

Hemiparasitic plant impacts animal and plant communities across four trophic levels [PDF]

open access: yes, 2015
1.Understanding the impact of species on community structure is a fundamental question in ecology. There is a growing body of evidence that suggests that both sub-dominant species and parasites can have a disproportionately large impact.
Green, J P   +5 more
core   +1 more source

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