PPT-Predicting predator-prey populations

Desired results Heres an approximation of reality The hare birth rate is constant as their food supply is unlimited Hares only die when eaten by a lynx and the number of hares eaten is proportional to how often hares amp lynxes meet ie the chance of a lynx catching a hare. Herbivory. Photo . of acorns & weevil grub from . http://www.insectimages.org/browse/detail.cfm?imgnum=0014201. Predators (active foragers, ambush predators, sit-and-wait predators, . etc. .). . Suharsh Sivakumar. December 11, 2010. Cellular Automaton. A grid of cells where all the cells are governed by a common set of rules based on the number of adjacent neighbors.. As generations go by, the rules work together to show very interesting phenomena in the big picture. . Rates That Affect Population Size. Natality-. the birth rate; the number of births over time. Mortality-. the death rate; the number of deaths over time. Rates That Affect Population Size. Immigration-. Introduction. Before you begin predict what will happen to the camouflage and visual acuity scores of the prey and predator over 10 generations. . Write . a hypothesis in your lab notebook.. Game set up. Richard Peters. ES 314. Sonoma State University. Cellular Automata. “A cellular automaton is a collection of "colored" cells on a grid of specified shape that evolves through a number of discrete time steps according to a set of rules based on the states of neighboring cells. The rules are then applied iteratively for as many time steps as desired.”. Ryan Chisholm. Smithsonian Tropical Research Institute. Workshop on Critical Transitions in Complex Systems. 21 March 2012. Imperial College London. Acknowledgements. Elise . Filotas. , . Centre for Forest Research . Aggressive Responses. Interspecific. Aggressive Responses. Competition for food . This occurs when resources become scarce.. It leads to stress and a reduction in population size, especially for the least successful species. One population may even become extinct.. Predator and Prey. The term . predator. can be used for any organism that feeds on other organisms. . Cougars . feeding on a . White-tail Deer . carcass may come to mind but we can also consider the . Predator-prey theory. Basics (. Lotka-Volterra. ). Functional responses and risk. Effect on phase-planes. Dynamics. Paradox of enrichment. Predator interference and ratio dependence. How do predators respond to prey?. . Taylor Drexinger. Lena Finkel. David Quinn. Caroline Wilkinson . Background. Schooling vs. Shoaling. How fish school. Both advantages and disadvantages. Relevance. Impact on surrounding species. Impact on surrounding environment. Final Write up is due 9/16. Planning. Purpose/Question. :. . How does the predatory and prey relationship of ______ and _______ effect the negative feedback process seen in the natural environment?. Leslie-Gower Predator-Prey . Model. Dynamic . Behaviors of a Harvesting . Leslie-Gower Predator-Prey . Model. Na Zhang,. 1. Fengde Chen,. 1. Qianqian Su,. 1. and Ting Wu. 2. 1. College of Mathematics and Computer Science, Fuzhou University, Fuzhou 350002, Fujian, China. By: Alexandra Silva and . Dani. Hoover. Intro to Systems ESE 251. 11/24/09. History. Alfred . Lotka. Vito . Volterra. -American biophysicist. -Proposed the predator-prey model in 1925. -Italian mathematician. Case Studies in Ecology, Biology, Medicine & . Physics. Prey Predator Models. 2. Observed Data. 3. A verbal model of predator-prey cycles:. Predators eat prey and reduce their numbers. Predators go hungry and decline in number.