|
ИСТИНА |
Войти в систему Регистрация |
ИПМех РАН |
||
Spatiotemporal pattern formation in a prey-predator system: The case study of short-term interactions between diatom microalgae and microcrustaceansстатья
Статья опубликована в высокорейтинговом журнале
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 8 сентября 2020 г.
- Авторы: Tyutyunov Yu V., Zagrebneva A.D., Azovsky A.I.
- Журнал: Mathematics
- Том: 8
- Номер: 7
- Год издания: 2020
- Издательство: MDPI
- Местоположение издательства: Basel, Switzerland
- Первая страница: 1065
- Последняя страница: 1080
- DOI: 10.3390/math8071065
- Аннотация: A simple mathematical model capable of reproducing formation of small-scale spatial structures in prey–predator system is presented. The migration activity of predators is assumed to be determined by the degree of their satiation. The hungrier individual predators migrate more frequently, randomly changing their spatial position. It has previously been demonstrated that such an individual response to local feeding conditions leads to prey–taxis and emergence of complex spatiotemporal dynamics at population level, including periodic, quasi-periodic and chaotic regimes.The proposed taxis–diffusion–reaction model is applied to describe the trophic interactions in system consisting of benthic diatom microalgae and harpacticoid copepods. The analytical condition for the oscillatory instability of the homogeneous stationary state of species coexistence is given. The model parameters are identified on the basis of field observation data and knowledge on the species ecology in order to explain micro-scale spatial patterns of these organisms, which still remain obscure, and to reproduce in numerical simulations characteristic size and the expected lifetime of density patches.
- Добавил в систему: Азовский Андрей Игоревич