Results 71 to 80 of about 262,375 (207)

Feeding Habits and Prey Composition of Six Mesopelagic Fish Species from an Isolated Central Mediterranean Basin

Fishes
Mesopelagic fishes hold an important position in marine food webs, serving as a link between lower trophic levels and top predators and transferring energy from their deep mesopelagic habitat to shallower oceanic layers.
Nicholas Badouvas, Konstantinos Tsagarakis, Stylianos Somarakis, Paraskevi K. Karachle   +3 more
doaj   +1 more source

Trophic tug‐of‐war: Coexistence mechanisms within and across trophic levels

Ecology Letters
Abstract Ecological communities encompass rich diversity across multiple trophic levels. While modern coexistence theory has been widely applied to understand community assembly, its traditional formalism only allows assembly within a single trophic level.
Chuliang Song, Jurg W. Spaak
openaire   +2 more sources

Trophic model of the coastal fisheries ecosystem of the west coast of peninsular Malaysia [PDF]

A preliminary mass-balance trophic model was constructed for the coastal fisheries ecosystem of the West Coast of Peninsular Malaysia (0 - 120 m depth). The ecosystem was partitioned into 15 trophic groups, and biomasses for selected groups were obtained
Man, A.
core  

PICES Press, Vol. 8, No. 2, July 2000 [PDF]

, 2000
Beyond El Nino Conference The status of the Bering Sea: June - December, 1999 The state of the western North Pacific in the second half of 1999 The state of the eastern North Pacific since autumn 1999 Project Argo Report of the ICES Zooplankton

core  

Computer simulations of history of life: speciation, emergence of complex species from simpler organisms, and extinctions

, 2003
We propose a generic model of eco-systems, with a {\it hierarchical} food web structure. In our computer simulations we let the eco-system evolve continuously for so long that that we can monitor extinctions as well as speciations over geological time ...
Ackermann, Bak, Bak, Caldarelli, Carroll, Chowdhury, Chowdhury, Cohen, Cohen, Cohen, Debashish Chowdhury, di Collobiano, Dieckmann, Dietrich Stauffer, Doebeli, Drossel, Drossel, Drossel, Fussmann, Ghalambor, Goel, Hall, Hofbauer, Kauffman, Khibnik, Maynard-Smith, Maynard-Smith, Mayr, Mayr, Murray, Newman, Orr, Paczuski, Pimm, Post, Quince, Solé, Solé, Solé, Stauffer, Thompson, Thompson, Williams, Łaszkiewicz   +43 more
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Species assembly in model ecosystems, I: Analysis of the population model and the invasion dynamics [PDF]

, 2010
Recently we have introduced a simplified model of ecosystem assembly (Capitan et al., 2009) for which we are able to map out all assembly pathways generated by external invasions in an exact manner. In this paper we provide a deeper analysis of the model,
Alonso, Bascompte, Bastolla, Bastolla, Bender, Borrvall, Capitán, Case, Case, Drake, Dunne, Eklöf, Elton, Etienne, Fukami, Fukami, Hewitt, Hofbauer, Huang, Hubbell, José A. Capitán, José A. Cuesta, Karlin, Kokkoris, Law, Law, Law, Levine, Lewis, Liebhold, Lässig, MacArthur, MacArthur, Martinez, May, May, McCann, Morton, Odum, Pimm, Pimm, Post, Rezende, Roughgarden, Turelli, Warren, Xie   +46 more
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Effects of pendimethalin at lower trophic levels—a review

Ecotoxicology and Environmental Safety, 2004
Pendimethalin's herbicidal action lies in its inhibition of the steps in plant cell division responsible for chromosome separation and cell wall formation. Terrestrial studies show that 10-20% of the herbicide evaporates during the first weeks after application. The remainder may dissipate biologically or chemically.
Morten, Strandberg, Janeck J, Scott-Fordsmand   +1 more
openaire   +2 more sources

Trophic classification of Tennessee Valley area reservoirs derived from LANDSAT multispectral scanner data [PDF]

LANDSAT MSS data from four different dates were extracted from computer tapes using a semiautomated digital data handling and analysis system. Reservoirs were extracted from the surrounding land matrix by using a Band 7 density level slice of 3; and ...
Malone, D. L., Meinert, D. L., Scarpace, F. L., Voss, A. W.   +3 more
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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, Abrams, Arditi, Borrvall, Caldarelli, Carlton, Drake, Drossel, Dunne, Elton, Fowler, Fretwell, Fujii, Jordán, Jordán, Law, Lockwood, Lubchenco, Lundberg, MacArthur, Mathsoft Inc., May, May, McCullagh, Milner-Gulland, Morton, Naeem, Navarrete, Odum, Paine, Paine, Pimm, Pimm, Power, Quince, Quince, Shigesada, Solé, Ulanowicz, Ulanowicz, Walker, Yodzis, Yodzis, Yodzis   +43 more
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Multivariate Meta-Analysis of Brain-Mass Correlations in Eutherian Mammals

Frontiers in Neuroanatomy, 2016
The general assumption that brain size differences are an adequate proxy for subtler differences in brain organization turned neurobiologists towards the question why some groups of mammals such as primates, elephants, and whales have such remarkably ...
Charlene Steinhausen, Charlene Steinhausen, Lyuba Zehl, Lyuba Zehl, Michaela Haas-Rioth, Kerstin Morcinek, Wolfgang Walkowiak, Stefan Huggenberger, Stefan Huggenberger   +8 more
doaj   +1 more source