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Latest Lotka–Volterra equation Stories

2014-05-07 11:04:27

New method described in 'The Journal of Chemical Physics' simplifies studies of predator-prey interactions and other 'bistable' systems A team of U.K. researchers has developed a way to dramatically reduce the complexity of modeling "bistable" systems which involve the interaction of two evolving species where one changes faster than the other ("slow-fast systems"). Described in The Journal of Chemical Physics, the work paves the way for easier computational simulations and predictions...

2014-05-06 15:07:45

Populations of predators and their prey usually follow predictable cycles. When the number of prey increases, perhaps as their food supply becomes more abundant, predator populations also grow. When the predator population becomes too large, however, the prey population often plummets, leaving too little food for the predators, whose population also then crashes. This canonical view of predator-prey relationships was first identified by mathematical biologists Alfred Lotka and Vito...

2009-07-22 14:26:38

Synchronicity in nature is seen in beating hearts, the flashing of fireflies' lights, the ebb and flow of infectious disease"”and the simultaneous rise and fall of populations across vast reaches of space. While scientists have identified some factors that account for this melodic phenomenon, they have yet to sort out the relative contribution each plays in this finely tuned orchestra.Now researchers at Yale University and the University of Calgary report in the July 22 issue of...

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2008-04-14 10:55:00

The hunter-versus-hunted phenomenon exemplified by a pack of lionesses chasing down a lonely gazelle has been recreated in a Petri dish with lowly bacteria.Working with colleagues at Caltech, Stanford and the Howard Hughes Medical Institute, a Duke University bioengineer has developed a living system using genetically altered bacteria that he believes can provide new insights into how the population levels of prey influence the levels of predators, and vice-versa.The Duke experiment is an...


Word of the Day
malpais
  • The ragged surface of a lava-flow.
'Malpais' translates from Spanish as 'bad land.'