Results 11 to 20 of about 262,375 (207)
Trophic levels of Tidal and Non-Tidal Marshes of Southern Mesopotamia
Maǧallaẗ al-baṣraẗ al-ʻulūm al-zirāʻiyyaẗ, 2020 Carlson’s Trophic State Index (CTSI) was applied to assess the trophic status of two kind of southern Mesopotima marshes. Six stations were selected, three in non-tidal Chebiyesh marshes and other three in tidal East Hammer marsh.
Najah A. Hussain, Amal A. Sabbar
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Evaluation of Sustainable Utilization of African Marine Fishery Resources
Fishes, 2022 Sustainable utilization evaluation is the basis for ensuring the sustainable exploitation of fisheries’ resources. This paper explores the changes in the mean trophic level of African marine fish catches during a 70-year period based on the statistical ...
Mo Bi, Zhenke Zhang, Xinya Guo, Lei Wan
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Trophic Ecology of Deep-Sea Megafauna in the Ultra-Oligotrophic Southeastern Mediterranean Sea
Frontiers in Marine Science, 2022 The trophic ecology of fourteen species of demersal fishes and six species of demersal decapod crustaceans from the continental slope and rise of the Southeastern Mediterranean Sea (SEMS) was examined using stable isotope analysis. Mean δ13C values among
Tamar Guy-Haim +2 more
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Plant genetic diversity affects multiple trophic levels and trophic interactions
Nature Communications, 2022 Abstract Intraspecific genetic diversity is an important component of biodiversity. A substantial body of evidence has demonstrated positive effects of plant genetic diversity on plant performance. However, it has remained unclear whether plant genetic diversity generally increases plant performance by reducing the pressure of plant ...
Nian-Feng Wan +6 more
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Dual stable isotope abundances unravel trophic position of estuarine nematodes [PDF]
, 2005 The role and quantitative importance of free-living nematodes in marine and estuarine soft sediments remain enigmatic for lack of empirical evidence on the feeding habits and trophic position of most nematode species.
BOUILLON, S, GALLUCCI, F, Moens, Tom
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Marine and Fishery Sciences, 2021 Food habits and diet composition of Patagonian flounder Paralichthys patagonicus (Jordan, 1889) were studied on the basis of stomach content analyses from 828 specimens (512 females, 304 males, 12 unsexed) collected during 16 commercial cruises between ...
Gonzalo H. Troccoli +4 more
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Estimating Trophic Levels and Trophic Magnification Factors Using Bayesian Inference [PDF]
Environmental Science & Technology, 2013 Food web biomagnification is increasingly assessed by estimating trophic magnification factors (TMF) where solvent (often lipid) normalized contaminant concentration is regressed onto the trophic level, and TMFs are represented by the slope of the relationship.
Starrfelt, Jostein +3 more
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The evolution of the human trophic level during the Pleistocene [PDF]
American Journal of Physical Anthropology, 2021 AbstractThe human trophic level (HTL) during the Pleistocene and its degree of variability serve, explicitly or tacitly, as the basis of many explanations for human evolution, behavior, and culture. Previous attempts to reconstruct the HTL have relied heavily on an analogy with recent hunter‐gatherer groups' diets.
Miki Ben‐Dor +2 more
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Bioaccumulation modelling and sensitivity analysis for discovering key players in contaminated food webs: the case study of PCBs in the Adriatic Sea [PDF]
, 2015 Modelling bioaccumulation processes at the food web level is the main step to analyse the effects of pollutants at the global ecosystem level. A crucial question is understanding which species play a key role in the trophic transfer of contaminants to ...
Marianna Taffi a, D +3 more
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A food chain ecoepidemic model: infection at the bottom trophic level [PDF]
, 2014 In this paper we consider a three level food web subject to a disease affecting the bottom prey. The resulting dynamics is much richer with respect to the purely demographic model, in that it contains more transcritical bifurcations, gluing together the ...
De Rossi, Alessandra +4 more
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