The Discrete Beverton-Holt Model with Periodic Harvesting in a Periodically Fluctuating Environment

We investigate the effect of constant and periodic harvesting on the Beverton-Holt model in a periodically fluctuating environment. We show that in a periodically fluctuating environment, periodic harvesting gives a better maximum sustainable yield compared to constant harvesting. However, if one ca...

وصف كامل

محفوظ في:
التفاصيل البيبلوغرافية
المؤلف الرئيسي: Al-Sharawi, Ziyad (author)
مؤلفون آخرون: Rhouma, Mohamed Ben Haj (author)
التنسيق: article
منشور في: 2010
الموضوعات:
الوصول للمادة أونلاين:http://hdl.handle.net/11073/16677
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الوصف
الملخص:We investigate the effect of constant and periodic harvesting on the Beverton-Holt model in a periodically fluctuating environment. We show that in a periodically fluctuating environment, periodic harvesting gives a better maximum sustainable yield compared to constant harvesting. However, if one can also fix the environment, then constant harvesting in a constant environment can be a better option, especially for sufficiently large initial populations. Also, we investigate the combinatorial structure of the periodic sequence of carrying capacities and its effect on the maximum sustainable yield. Finally, we leave some questions worth further investigations.