sevinПОВОЛЖСКИЙ ЭКОЛОГИЧЕСКИЙ ЖУРНАЛPovolzhskiy Journal of Ecology1684-73182541-8963Федеральное государственное бюджетное учреждение науки Институт проблем экологии и эволюции им. А. Н. Северцова РАН; Товарищество научных изданий КМК.10.35885/1684-7318-2022-2-173-192sevin-359Research ArticleСТАТЬИARTICLESВлияние погодных условий на сезонное развитие, структуру популяции и репродуктивный успех Dactylorhiza incarnata s. l. (Orchidaceae, Liliopsida) в Республике КомиImpact of weather conditions on the seasonal development, population structure and reproductive success of Dactylorhiza incarnata s. l. (Orchidaceae, Liliopsida) in the Komi Republichttps://orcid.org/0000-0001-7774-7709КирилловаИ. А.KirillovaI. A.

Кириллова Ирина Анатольевна

167982, Республика Коми, г. Сыктывкар, ул. Коммунистическая, д. 28

Irina A. Kirillova

28 Kommunisticheskaya St., Syktyvkar 167982

kirillova_orchid@mail.ruhttps://orcid.org/0000-0002-6577-693XКирилловД. В.KirillovD. V.

Кириллов Дмитрий Валерьевич

167982, Республика Коми, г. Сыктывкар, ул. Коммунистическая, д. 28

Dmitriy V. Kirillov

28 Kommunisticheskaya St., Syktyvkar 167982

kirdimka@mail.ruИнститут биологии Коми НЦ УрО РАНРоссияInstitute of Biology of Komi Science Centre of the Ural Branch of the Russian Academy of SciencesRussian Federation20220911202202173192Copyright © Кириллова И.А., Кириллов Д.В., 20222022Кириллова И.А., Кириллов Д.В.Kirillova I.A., Kirillov D.V.This work is licensed under a Creative Commons Attribution 4.0 License.https://sevin.elpub.ru/jour/article/view/359

Представлены результаты восьмилетнего изучения популяции редкой орхидеи Dactylorhiza incarnata subsp. cruenta на северном пределе ее распространения (на территории Республики Коми). Выявлено, что погодные факторы (температура воздуха и осадки) оказывают влияние на особенности прохождения малого и большого жизненных циклов этого вида. На численность растений в исследованной популяции оказывали влияние погодные условия предыдущего вегетационного периода, положительно – температура августа и отрицательно – заморозки в октябре. Число генеративных растений связано с температурой июля предыдущего вегетационного периода. Плодозавязываемость высокая (71.2%), при этом она отрицательно связана с количеством осадков во время цветения вида. Число семян в коробочке в изученной популяции (в среднем 9831 шт.) выше, чем в более южных частях ареала этого вида. Данный показатель, как и реальная семенная продуктивность вида, положительно связаны с уровнем влагообеспеченности текущего вегетационного периода. Урожай семян высокий, от 34 тыс. до 154.6 тыс. семян на 1 м2 в разные годы исследования, он положительно связан с суммой активных температур предшествующего вегетационного периода. Присутствие ювенильных особей (10.0 – 31.7%) во все годы изучения свидетельствует об успешном семенном возобновлении в данной популяции. 

The results of our eight-year study of a population of the rare orchid Dactylorhiza incarnata subsp. cruenta at the northern limit of its range (the Komi Republic) are presented. Weather factors (air temperature and precipitations) were revealed to influence features of the small and big life cycles of this species. The number of plants in the studied population was influenced by the weather conditions of the previous growing season, positively by the temperature in August and negatively by frosts in October. The number of generative (flowering) plants had a positive correlation with the air temperature in July of the previous vegetative season. The fruit set was high (71.2%) and negatively associated with precipitation during flowering of this species. The seed number per fruit in the studied population (9,831 pcs on average) was higher than that in the more southern parts of the range of this species. This indicator, as well as the real seed productivity of the species, is positively related to the level of moisture availability of the current growing season. The seed production is high, from 34 thousand to 154.6 thousand seeds per 1 m2 in several study years, it is positively associated with the sum of active temperatures of the previous growing season. The presence of juvenile individuals (10.0–31.7%) over all study years indicates a successful seed reproduction in this population.

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The authors declare that there are no conflicts of interest present.