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COMPLEXITY OF AN IVLEV'S PREDATOR-PREY MODEL WITH PULSE

PANG, GUOPING; CHEN, LANSUN - In: Advances in Complex Systems (ACS) 10 (2007) 02, pp. 217-231

In this paper, we investigate the extinction, permanence and dynamic complexity of the two-prey, one-predator system … with Ivlev's functional response and impulsive perturbation on the predator at fixed moments. Conditions for the extinction … and permanence of the system are established via the comparison theorem. Numerical simulations are carried out to explain …

Persistent link: https://www.econbiz.de/10005080947

PERMANENCE, AVERAGE PERSISTENCE AND EXTINCTION IN NONAUTONOMOUS SINGLE-SPECIES GROWTH CHEMOSTAT MODELS

REHIM, MEHBUBA; TENG, ZHIDONG - In: Advances in Complex Systems (ACS) 09 (2006) 01, pp. 41-58

boundedness, permanence, persistence, average persistence and extinction of the population is established. In particular, when … models degenerate into the almost periodic case, the equivalences of the permanence, persistence and average persistence of …

Persistent link: https://www.econbiz.de/10005080967

Continuous and impulsive harvesting strategies in a stage-structured predator–prey model with time delay

Yongzhen, Pei; Changguo, Li; Lansun, Chen - In: Mathematics and Computers in Simulation (MATCOM) 79 (2009) 10, pp. 2994-3008

attractive. The conditions of permanence are established by the method of comparison involving multiple Liapunov functions and …

Persistent link: https://www.econbiz.de/10010870299

COMPLEX DYNAMICS OF ONE-PREY MULTI-PREDATOR SYSTEM WITH DEFENSIVE ABILITY OF PREY AND IMPULSIVE BIOLOGICAL CONTROL ON PREDATORS

PEI, YONGZHEN; LI, CHANGGUO; CHEN, LANSUN; WANG, CHUNHUA - In: Advances in Complex Systems (ACS) 08 (2005) 04, pp. 483-495

than some critical value, and a permanence condition is established via the method of comparison involving multiple …

Persistent link: https://www.econbiz.de/10005047425

Dynamic analysis of a pest-epidemic model with impulsive control

Pang, Guoping; Chen, Lansun - In: Mathematics and Computers in Simulation (MATCOM) 79 (2008) 1, pp. 72-84

Based on biological control strategy in pest management, we construct and investigate a pest-epidemic model with impulsive control, i.e., periodic spraying microbial pesticide and releasing infected pests at different fixed moments. By using Floquet theorem and comparison theorem, we prove that...

Persistent link: https://www.econbiz.de/10011050695

CHAOTIC BEHAVIOR OF A PERIODICALLY FORCED PREDATOR–PREY SYSTEM WITH BEDDINGTON–DEANGELIS FUNCTIONAL RESPONSE AND IMPULSIVE PERTURBATIONS

ZHANG, SHUWEN; TAN, DEJUN; CHEN, LANSUN - In: Advances in Complex Systems (ACS) 09 (2006) 03, pp. 209-222

The effects of periodic forcing and impulsive perturbations on the predator–prey model with Beddington–DeAngelis functional response are investigated. We assume periodic variation in the intrinsic growth rate of the prey as well as periodic constant impulsive immigration of the predator. The...

Persistent link: https://www.econbiz.de/10005047391

Cost-effectiveness of aflatoxin control methods: economic incentive.

Wu, Felicia; Liu, Yan; Bhatnagar, Deepak - 2008

Multiple sectors within U.S. crop industries - - -growers, elevators, handlers/shell- ers, processors, distributors, and consumers - - -are affected by aflatoxin contamination of commodities, and have the potential to control it using methods developed at both the pre- and postharvest levels....

Persistent link: https://www.econbiz.de/10009429567

Optimal control for a dispersing biological agent

Chalak, Morteza - In: Journal of agricultural and resource economics : JARE ; … 39 (2014) 2, pp. 271-289

Persistent link: https://www.econbiz.de/10011417404

Integrating agricultural pest biocontrol into forecasts of energy biomass production

Skevas, Theodoros; Swinton, Scott M.; Meehan, T. D.; … - In: Ecological economics : the transdisciplinary journal of … 106 (2014), pp. 195-203

Persistent link: https://www.econbiz.de/10010493681

Willingness to pay for pesticides’ environmental features and social desirability bias : the case of Apple and pear growers

Gallardo, R. Karina; Wang, Qianqian - In: Journal of agricultural and resource economics : JARE ; … 38 (2013) 1, pp. 124-139

Persistent link: https://www.econbiz.de/10010393011

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