Results 21 to 30 of about 8,987,665 (156)
Determining trophic niche width: a novel approach using stable isotope analysis [PDF]
, 2004 1. Although conceptually robust, it has proven difficult to find practical measures of niche width that are simple to obtain, yet provide an adequate descriptor of the ecological position of the population examined. 2.
Bearhop, S. +8 more
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Scientia Marina, 2019 Mean temperature (MTC) and mean trophic level (MTL) spatiotemporal patterns of MEDITS survey catches were examined in 13 geographic statistical areas (GSAs) of the Mediterranean between 1994 and 2016.
Panagiota Peristeraki +11 more
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Frontiers in Water, 2021 Streams and rivers are globally threatened ecosystems because of increasing levels of exploitation, habitat degradation and other anthropogenic pressures.
Alfred O. Achieng +6 more
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The effect of trophic level on individual amino acid δ15N values in a terrestrial ruminant food web [PDF]
, 2017 Bulk collagen δ15N analysis is widely used to investigate past diet and trophic positions, but these values average the δ15N values of the constituent amino acids.
Iain P. Kendall +5 more
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Do trophic subsidies affect the outcome of introductions of a non-native freshwater fish? [PDF]
, 2013 Understanding how environmental variables and human disturbances influence the outcomes of introductions of non-native freshwater fish is integral to their risk management. This can be complex in freshwater ecosystems that receive subsidies that increase
Allen, R. +7 more
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Zooplankton and trophic status of Peipsi-Pihkva Lake
Трансформация экосистем, 2018 Long-term studies of the zooplankton of Chudsko-Pskovskoe (Peipsi-Pihkva) Lake have shown that the species composition and structure of the community correspond to those of eutrophic waters. Intensification of the eutrophication of the lake in the period
Anna V. Cherevichko
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Foods, 2023 Bioaccumulation is the process by which living organisms accumulate substances, such as pesticides, heavy metals, and other pollutants, from their environment.
Enrique Lozano-Bilbao +7 more
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Bridging the gap from ocean models to population dynamics of large marine predators: A model of mid-trophic functional groups [PDF]
, 2009 The modeling of mid-trophic organisms of the pelagic ecosystem is a critical step in linking the coupled physical–biogeochemical models to population dynamics of large pelagic predators. Here, we provide an example of a modeling approach with definitions
Senina, Inna +2 more
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Reconstructing Pleistocene Australian herbivore megafauna diet using calcium and strontium isotopes
Royal Society Open Science, 2023 Isotopes in fossil tooth enamel provide robust tools for reconstructing food webs, which have been understudied in Australian megafauna. To delineate the isotopic composition of primary consumers and understand dietary behaviour at the base of the food ...
Dafne Koutamanis +3 more
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Trophic-level dynamics in microbial-based soil food webs
, 2021 The aims of the thesis were to test current trophic-dynamic models and to find essential features of microbial-based soil food webs in order to formulate a verbal trophic-dynamic model for them.
Mikola, Juha
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