Results 21 to 30 of about 3,279,066 (304)
Trophic coherence determines food-web stability [PDF]
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
Coupling low and high trophic levels models: Towards a pathways-orientated approach for end-to-end models [PDF]
Existing models of marine ecosystems address specific issues related to the bottom-up forcing of production or to the top-down effects of fishing on a limited range of the trophic spectrum.
Maury, Olivier +3 more
core +1 more source
Trophic structure in a seabird host-parasite food web: insights from stable isotope analyses [PDF]
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
Biological invasions are a widespread problem worldwide, as invasive non-indigenous species (NIS) may affect native populations through direct (e. g., predation) or indirect (e.g., competition) trophic interactions, leading to changes in the food web ...
Cristina Andolina +11 more
doaj +1 more source
Assessment Of Trophic Status In Bali Strait
The nutrient content in Banyuwangi coastal environment mostly caused by human activities along the coastal area of Bali strait especially in Banyuwangi surrounding areas. The change of organic element content in waters will directly affect plankton community structure and the aquatic trophic level.
Umi Zakiyah +2 more
openaire +3 more sources
Water quality assessment, trophic classification and water resources management [PDF]
Quantification of water quality (WQ) is an integral part of scientifically based water resources management. The main objective of this study was comparative analysis of two approaches applied for quantitative assessment of WQ: the trophic level index ...
Gal, Gideon +4 more
core +1 more source
Do trophic subsidies affect the outcome of introductions of a non-native freshwater fish? [PDF]
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
core +1 more source
Ecological status of urban ponds in Białystok, Poland
Stawy Dojlidzkie (The Dojlidy Ponds) are located in the north-eastern part of Poland, near the capital of the Podlasie province, in Białystok. The Dojlidy Ponds (DP) are a complex of more than 20 reservoirs arranged adjacent to one another in an area of ...
Jekatierynczuk-Rudczyk Elżbieta +2 more
doaj +1 more source
The present study deals with an account of the primary productivity and trophic status of Rewalsar, Kuntbhyog, and Prashar lakes of Western Himalayas. Seasonal variations in gross primary productivity (GPP) (g C m–2 day–1), net primary productivity (NPP,
Rakesh Kumar +10 more
doaj +1 more source
Trophic interactions of meso- and macrozooplankton and fish in the Iceland Sea as evaluated by fatty acid and stable isotope analysis [PDF]
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

