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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">Samara Journal of Science</journal-id><journal-title-group><journal-title xml:lang="en">Samara Journal of Science</journal-title><trans-title-group xml:lang="ru"><trans-title>Самарский научный вестник</trans-title></trans-title-group></journal-title-group><issn publication-format="print">2309-4370</issn><issn publication-format="electronic">2782-3016</issn><publisher><publisher-name xml:lang="en">Samara State University of Social Sciences and Education</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">702092</article-id><article-id pub-id-type="doi">10.55355/snv2025144102</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Biological Sciences</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Биологические науки</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">Niche modeling, habitat suitability, and range dynamics of the rare myxomycete species of <italic>Physarum auripigmentum</italic> under a changing climate</article-title><trans-title-group xml:lang="ru"><trans-title>Моделирование ниши, пригодность местообитаний и динамика ареала редкого вида миксомицетов <italic>Physarum auripigmentum</italic> в условиях меняющегося климата</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Vlasenko</surname><given-names>Vyacheslav Alexandrovich</given-names></name><name xml:lang="ru"><surname>Власенко</surname><given-names>Вячеслав Александрович</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>candidate of biological sciences, senior researcher of Mycology, Algology and Lichenology Laboratory</p></bio><bio xml:lang="ru"><p>кандидат биологических наук, старший научный сотрудник лаборатории микологии, альгологии и лихенологии</p></bio><email>vlasenkomyces@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Liu</surname><given-names>Pu</given-names></name><name xml:lang="ru"><surname>Лью</surname><given-names>Пу</given-names></name></name-alternatives><address><country country="CN">China</country></address><bio xml:lang="en"><p>PhD, professor of Engineering Research Center of Edible and Medicinal Fungi</p></bio><bio xml:lang="ru"><p>PhD, профессор инженерно-исследовательского центра съедобных и лекарственных грибов</p></bio><email>pul@jlau.edu.cn</email><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Vlasenko</surname><given-names>Anastasia Vladimirovna</given-names></name><name xml:lang="ru"><surname>Власенко</surname><given-names>Анастасия Владимировна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>candidate of biological sciences, senior researcher of Mycology, Algology and Lichenology Laboratory</p></bio><bio xml:lang="ru"><p>кандидат биологических наук, старший научный сотрудник лаборатории микологии, альгологии и лихенологии</p></bio><email>anastasiamix81@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Central Siberian Botanical Garden of Siberian Branch of the Russian Academy of Sciences</institution></aff><aff><institution xml:lang="ru">Центральный сибирский ботанический сад СО РАН</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">Jilin Agricultural University</institution></aff><aff><institution xml:lang="ru">Цзилиньский сельскохозяйственный университет</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2025-12-01" publication-format="electronic"><day>01</day><month>12</month><year>2025</year></pub-date><volume>14</volume><issue>4</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>20</fpage><lpage>29</lpage><history><date date-type="received" iso-8601-date="2026-02-03"><day>03</day><month>02</month><year>2026</year></date><date date-type="accepted" iso-8601-date="2026-02-03"><day>03</day><month>02</month><year>2026</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2025, Vlasenko V.A., Liu P., Vlasenko A.V.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2025, Власенко В.А., Лью П., Власенко А.В.</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="en">Vlasenko V.A., Liu P., Vlasenko A.V.</copyright-holder><copyright-holder xml:lang="ru">Власенко В.А., Лью П., Власенко А.В.</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/4.0</ali:license_ref></license></permissions><self-uri xlink:href="https://snv63.ru/2309-4370/article/view/702092">https://snv63.ru/2309-4370/article/view/702092</self-uri><abstract xml:lang="en"><p> </p><p>Species distribution is undergoing rapid changes in the face of habitat modification and climate change. This raises ecological questions about the processes that governs species ranges and niches. Maximum entropy spatial distribution modelling (MaxEnt) solves this problem by inferring species distributions and environmental tolerance based on the occurrence data. The objective of this study was to create a model of the ecological niche and potential geographic distribution of the rare myxomycete species of <italic>Physarum auripigmentum</italic> to understand its ecological specificity and distribution patterns. The studied species is an epiphyte and xylobiont, colonizing the bark folds of living woody plants and dead wood. In mountainous regions, the species preferentially prefers tree bark and colonizes microhabitats as an epiphyte. Most areas globally are bioclimatically unsuitable for <italic>Physarum auripigmentum</italic>, falling below both the 10% and 50% thresholds for species presence. Modeling the potential geographic distribution and niche suggests that the distribution of <italic>Physarum auripigmentum</italic> is largely dependent on the availability of suitable substrate and microhabitats and that it is undemanding regarding the bioclimatic characteristics of the areas where its macrohabitats are present.</p> </abstract><trans-abstract xml:lang="ru"><p> </p><p>Распространение видов претерпевает быстрые изменения в связи с модификацией среды обитания и изменением климата. Это поднимает экологические вопросы о процессах, регулирующих ареалы и ниши видов. Моделирование пространственного распределения с максимальной энтропией (MaxEnt) решает эту проблему путем определения связи распределения видов и пригодности окружающей среды на основе данных о встречаемости. Цель этого исследования заключалась в создании модели экологической ниши и потенциального географического распределения редкого вида миксомицетов <italic>Physarum auripigmentum</italic> для понимания его экологической специфики и закономерностей его распространения. Изученный вид является кортикулоидным эпифитом и ксилобионтом, заселяя складки коры живых древесных растений и мертвую древесину. Вид в горных районах в большей степени тяготеет к коре деревьев и заселяет микроместообитания как кортикулоидный эпифит. Большинство территорий в мировом масштабе в биоклиматическом отношении не подходят для <italic>Physarum auripigmentum</italic> и находятся как за пределами 10%-го, так и за пределами 50%-го порога присутствия вида. Моделирование потенциального географического распределения и ниши позволяет сделать вывод, что <italic>Physarum auripigmentum</italic> в своем распространении в большей степени связаны с наличием подходящего субстрата и микроместообитаний, и что он не требователен к биоклиматическим характеристикам территорий, на которых представлены его макроместообитания.</p> </trans-abstract><kwd-group xml:lang="en"><kwd>geographical distribution</kwd><kwd>rare species</kwd><kwd>substrate specificity</kwd><kwd>ecological niche</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>географическое распределение</kwd><kwd>редкие виды</kwd><kwd>субстратная специфичность</kwd><kwd>экологическая ниша</kwd></kwd-group><funding-group><funding-statement xml:lang="en">The work was carried out within the framework of the state assignment of the Central Siberian Botanical Garden of the Siberian Branch of the Russian Academy of Sciences No. AAAA-A21-121011290024-5.</funding-statement><funding-statement xml:lang="ru">Работа выполнена в рамках государственного задания ЦСБС СО РАН № АААА-А21-121011290024-5.</funding-statement></funding-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Zurell D., Franklin J., König C., Bouchet P.J., Dormann C.F., Elith J., Fandos G., Feng X., Guillera‐Arroita G., Guisan A., Lahoz‐Monfort J.J., Leitão P.J., Park D.S., Townsend Peterson A., Rapacciuolo G., Schmatz D.R., Schröder B., Serra‐Diaz J.M., Thuiller W., Yates K.L., Zimmermann N.E., Merow C. 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