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<article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="research-article" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Contemporary Mathematics. Fundamental Directions</journal-id><journal-title-group><journal-title xml:lang="en">Contemporary Mathematics. Fundamental Directions</journal-title><trans-title-group xml:lang="ru"><trans-title>Современная математика. Фундаментальные направления</trans-title></trans-title-group></journal-title-group><issn publication-format="print">2413-3639</issn><issn publication-format="electronic">2949-0618</issn><publisher><publisher-name xml:lang="en">Peoples’ Friendship University of Russia named after Patrice Lumumba (RUDN University)</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">46621</article-id><article-id pub-id-type="doi">10.22363/2413-3639-2025-71-3-370-384</article-id><article-id pub-id-type="edn">FCHSSL</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Articles</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Статьи</subject></subj-group><subj-group subj-group-type="article-type"><subject>Research Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">Modeling of evolutionary strategies of interacting populations in a heterogeneous habitat</article-title><trans-title-group xml:lang="ru"><trans-title>Моделирование эволюционных стратегий взаимодействующих популяций на неоднородном ареале</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Zelenchuk</surname><given-names>P. A.</given-names></name><name xml:lang="ru"><surname>Зеленчук</surname><given-names>П. А.</given-names></name></name-alternatives><email>zelenchuk@sfedu.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Tsybulin</surname><given-names>V. G.</given-names></name><name xml:lang="ru"><surname>Цибулин</surname><given-names>В. Г.</given-names></name></name-alternatives><email>vgcibulin@sfedu.ru</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Southern Federal University</institution></aff><aff><institution xml:lang="ru">Южный федеральный университет</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2025-10-15" publication-format="electronic"><day>15</day><month>10</month><year>2025</year></pub-date><volume>71</volume><issue>3</issue><issue-title xml:lang="en">Proceedings of the Crimean Autumn Mathematical School-Symposium</issue-title><issue-title xml:lang="ru">Труды Крымской осенней математической школы-симпозиума</issue-title><fpage>370</fpage><lpage>384</lpage><history><date date-type="received" iso-8601-date="2025-10-23"><day>23</day><month>10</month><year>2025</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2025, Zelenchuk P.A., Tsybulin V.G.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2025, Зеленчук П.А., Цибулин В.Г.</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="en">Zelenchuk P.A., Tsybulin V.G.</copyright-holder><copyright-holder xml:lang="ru">Зеленчук П.А., Цибулин В.Г.</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/><license><ali:license_ref xmlns:ali="http://www.niso.org/schemas/ali/1.0/">https://creativecommons.org/licenses/by-nc/4.0</ali:license_ref></license></permissions><self-uri xlink:href="https://journals.rudn.ru/CMFD/article/view/46621">https://journals.rudn.ru/CMFD/article/view/46621</self-uri><abstract xml:lang="en"><p>Using a predator-prey model in a heterogeneous environment, we have created a mathematical model that describes the interaction between populations with different evolutionary strategies. The model is based on partial differential equations and allows for the consideration of multifactor taxis. We propose modified functions of local predator-prey interactions, which provide a variety of evolutionary strategies for the system. Key parameters responsible for the formation of ideal free distribution strategies have been investigated, and conditions for the parameters of diffusion and migration have been given under which ideal free distribution-like strategies can be implemented. Results from computational experiments demonstrating stationary and oscillating modes have been presented.</p></abstract><trans-abstract xml:lang="ru"><p>На примере системы «хищник-жертва» в условиях неоднородного ареала построена математическая модель взаимодействующих популяций, обладающая разнообразными эволюционными стратегиями. Модель основана на системе уравнений в частных производных «диффузия-адвекция-реакция» и позволяет учитывать многофакторный таксис видов. Предложены модифицированные функции локального взаимодействия хищника и жертвы, обеспечивающие многообразие эволюционных стратегий системы. Исследован ряд ключевых параметров, отвечающих за формирование стратегий с идеальным свободным распределением (ИСР). Рассмотрены функции миграции, позволяющие учесть все виды направленного движения особей жертвы и хищника. Приведены условия для потоковых параметров системы, при которых возможна реализация ИСР-подобных стратегий. Представлены результаты вычислительных экспериментов для ряда стационарных и колебательных режимов.</p></trans-abstract><kwd-group xml:lang="en"><kwd>evolutionary strategy</kwd><kwd>ideal free distribution</kwd><kwd>reaction-diffusion-advection equations</kwd><kwd>predator-prey system</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>эволюционная стратегия</kwd><kwd>идеальное свободное распределение</kwd><kwd>уравнения диффузии-адвекции-реакции</kwd><kwd>хищник-жертва</kwd></kwd-group><funding-group><award-group><funding-source><institution-wrap><institution xml:lang="ru">Работа выполнена в Южном федеральном университете при поддержке РНФ, грант № 25-21-00419.</institution></institution-wrap><institution-wrap><institution xml:lang="en">This work was carried out at Southern Federal University and supported by the Russian Science Foundation (RSF), grant No. 25-21-00419.</institution></institution-wrap></funding-source></award-group></funding-group></article-meta><fn-group/></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Зеленчук П. 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