Results 101 to 110 of about 187,503 (276)

A perspective from the Mesozoic: Evolutionary changes of the mammalian skull and their influence on feeding efficiency and high‐frequency hearing

The Anatomical Record, EarlyView.
Abstract The complex evolutionary history behind modern mammalian chewing performance and hearing function is a result of several changes in the entire skeletomuscular system of the skull and lower jaw. Lately, exciting multifunctional 3D analytical methods and kinematic simulations of feeding functions in both modern and fossil mammals and their ...
Julia A. Schultz
wiley   +1 more source

Trophic modeling of Eastern Boundary Current Systems: a review and prospectus for solving the “Peruvian Puzzle”

Revista Peruana de Biología, 2013
Eastern Boundary Current systems (EBCSs) are among the most productive fishing areas in the world. High primary and secondary productivity supports a large biomass of small planktivorous pelagic fish, “small pelagics”, which are important drivers of ...
Marc H. Taylor, Matthias Wolff
doaj   +1 more source

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
core   +1 more source

Comparative and functional anatomy of masticatory muscles and bite force in opossums (Didelphimorphia, Didelphidae)

The Anatomical Record, EarlyView.
We describe the functional anatomy of masticatory muscles in nine opossums, finding a generalized anatomical pattern with differences related to skull morphology. Variation in quantitative myological data and estimated bite force was mostly related to size, and the increase in bite force supports dietary diversification associated with size increase ...
Juann A. F. H. Abreu, Diego Astúa
wiley   +1 more source

A trophic model of the coastal fisheries ecosystem off the west coast of Sabah and Sarawak, Malaysia [PDF]

A mass-balance steady-state trophic model of the coastal fisheries ecosystem off the West Coasts of Sabah and Sarawak, Malaysia (10 - 60 m depth) was constructed using the Ecopath software. The ecosystem models were partitioned into 29 ecological/trophic
Ahmad, A.T., Garces, L.R., Man, A., Mohamad-Norizam, M., Slivestre, G.T.   +4 more
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
core   +1 more source

Histovariability and fossil diagenesis of Pissarrachampsa (Pseudosuchia, Notosuchia, Baurusuchidae) from the Upper Cretaceous of Southeast Brazil

The Anatomical Record, EarlyView.
Abstract Notosuchians were key components of western Gondwanan Cretaceous ecosystems in terrestrial predator niches and exhibited remarkable taxonomic and ecological diversity. Previous research has explored their physiology, metabolism, and histology, revealing varied growth patterns and life history strategies.
Tito Aureliano, Virgínia Maciel, Pedro Victor Buck, Felipe C. Montefeltro, Thiago da S. Marinho, Aline M. Ghilardi   +5 more
wiley   +1 more source

Artificial neural networks and remote sensing in the analysis of the highly variable Pampean shallow lakes

Mathematical Biosciences and Engineering, 2008
Suspended organic and inorganic particles, resulting from the interactionsamong biological, physical, and chemical variables, modify the opticalproperties of water bodies and condition the trophic chain.
Graciela Canziani, Rosana Ferrati, Claudia Marinelli, Federico Dukatz   +3 more
doaj   +1 more source

A Statistical Social Network Model for Consumption Data in Food Webs

, 2013
We adapt existing statistical modeling techniques for social networks to study consumption data observed in trophic food webs. These data describe the feeding volume (non-negative) among organisms grouped into nodes, called trophic species, that form the
Anton H. Westveld, Borrett, Chiu, Chiu, Chiu, Chiu, Cohen, Dambacher, Dunne, Düntsch, Frank, Gill, Goldenberg, Goldwasser, Grace S. Chiu, Hoff, Hoff, Jennings, Krause, Krivitsky, Krivitsky, Krivitsky, Lunn, Mucha, Pinnegar, Robins, Rooney, Thomas, van Duijn, Ward, Wasserman, Westveld, Williams, Winemiller, Yodzis   +34 more
core   +1 more source

Origin, evolution and biogeographic dynamics of the European rabbit (Oryctolagus cuniculus) in Southwestern Europe

The Anatomical Record, EarlyView.
Abstract The Pleistocene is a key period for understanding the evolutionary history and palaeobiogeography of the European rabbit (Oryctolagus cuniculus). The species was first documented in southeastern Iberia at the beginning of the Middle Pleistocene and appears to have rapidly spread throughout Southwestern Europe, where it was found in numerous ...
Maxime Pelletier
wiley   +1 more source