Results 11 to 20 of about 250,155 (310)
Food-web structure in relation to environmental gradients and predator-prey ratios in tank-bromeliad ecosystems [PDF]
, 2013 Little is known of how linkage patterns between species change along environmental gradients. The small, spatially discrete food webs inhabiting tank-bromeliads provide an excellent opportunity to analyse patterns of community diversity and food-web ...
Alain Dejean +19 more
core +1 more source
Trophic coherence determines food-web stability [PDF]
, 2014 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
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
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
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
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
Diversity, 2023 Biotic interactions are a key component of the proper functioning of ecosystems. However, information on biotic interactions is spatially and taxonomically biased and limited to several groups. The most efficient strategy to fill these gaps is to combine
Alejandro Sánchez-Barradas +4 more
doaj +1 more source
Frontiers in Environmental Science, 2015 Deglaciation at the end of the Pleistocene initiated major changes in ocean circulation and distribution. Within a brief geological time, large areas of land were inundated by sea-level rise and today global sea level is 120 m above its minimum stand ...
Maribeth S. Murray +6 more
doaj +1 more source
Observability and observers in a food web
Applied Mathematics Letters, 2007 The problem of the possibility to recover the time-dependent state of a whole population system out of the observation of certain components has been studied in earlier publications, in terms of the observability concept of mathematical systems theory. In the present note a method is proposed to effectively calculate the state process.
Inmaculada López +2 more
openaire +3 more sources