Results 11 to 20 of about 1,314,808 (196)
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
core +1 more source
Journal of Limnology, 2022 Food web studies rely heavily on the use of traditional gut content analysis or the fairly popular stable isotope analysis rather than fatty acid analysis (FAA) despite its straightforward process, and ability to identify and characterize more diverse ...
Justine R. de Leon +6 more
doaj +1 more source
Intraspecific Behavioral Variation Mediates Insect Prey Survival via Direct and Indirect Effects
Diversity, 2020 Conspecific individuals often exhibit behavioral differences that influence susceptibility to predation. Yet, how such trait differences scale to affect prey population regulation and community structure remains unclear.
Benjamin J. Toscano +2 more
doaj +1 more source
Dynamics of Simple Food Webs [PDF]
Bulletin of Mathematical Biology, 2015 We consider a simple food web with commensal relationship, where organisms utilize both external resources and resources produced by other organisms. We show that in such a community with no competition, there is at most one possible equilibrium for each fixed set of surviving species, and develop a natural condition that determines which species ...
Gedeon, Tomas, Murphy, Patrick
openaire +2 more sources
Robust Patterns in Food Web Structure [PDF]
, 2002 We analyze the properties of seven community food webs from a variety of environments--including freshwater, marine-freshwater interfaces and terrestrial environments.
American Physical Society +3 more
core +3 more sources
Ecology, 2004 Both dynamic and topologic approaches in food webs have shown how structure alters conditions for stability. However, while most studies concerning the structure of food webs have shown a nonrandom pattern, it still remains unclear how this structure is related to compartmentalization and to responses to perturbations.
Melián, Carlos J., Bascompte, Jordi
openaire +2 more sources
Caught in the food web: complexity made simple?
Scientia Marina, 2001 Several historically separate lines of food-web research are merging into a unified approach. Connections between microbial and metazoan food webs are significant.
Lawrence R. Pomeroy
doaj +1 more source
Distribution and drift dispersal dynamics of a caddisfly grazer in response to resource abundance and its ontogeny [PDF]
Royal Society Open Science, 2017 Stream grazers have a major impact on food web structure and the productivity of stream ecosystems; however, studies on the longitudinal (upstream versus downstream) and temporal changes in their drift dynamics and resulting distributions remain limited.
Izumi Katano +4 more
doaj +1 more source
Deleting species from model food webs [PDF]
, 2004 We use food webs generated by a model to investigate the effects of deleting species on other species in the web and on the web as a whole. The model incorporates a realistic population dynamics, adaptive foragers and other features which allow for the ...
Abrams +43 more
core +3 more sources
Diversity and abundance of water birds in a subarctic lake during three decades
Fauna Norvegica, 2013 The numbers of divers, ducks, gulls, terns and waders in the 15 km2 oligotrophic lake Takvatn, North Norway were estimated six times during 1983-2012. Systematic mapping surveys were done by boat within the first week after ice-break in June.
Anders Klemetsen, Rune Knudsen
doaj +1 more source