Vitality structure of three populations of Spiranthes spiralis (Orchidaceae) from Ivano-Frankivs’k and Lviv regions
This paper presents the results of investigation of local populations of Spiranthes spiralis from Yaremche town and vicinity of villages Dora and Shoomyna including two new loci. Effective number and population density were analyzed; population vitality analysis was conducted. S. spiralis in conside...
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| Format: | Article |
| Language: | English |
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Львівський національний університет імені Івана Франка
2016-03-01
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| Series: | Біологічні студії |
| Subjects: | |
| Online Access: | http://publications.lnu.edu.ua/journals/index.php/biology/article/view/76 |
| _version_ | 1819151265180942336 |
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| author | M. Burlaka |
| author_facet | M. Burlaka |
| author_sort | M. Burlaka |
| collection | DOAJ |
| description | This paper presents the results of investigation of local populations of Spiranthes spiralis from Yaremche town and vicinity of villages Dora and Shoomyna including two new loci. Effective number and population density were analyzed; population vitality analysis was conducted. S. spiralis in considered localities usually forms small in area and effective number populations. They often consist of separated loci, adapting to favourable habitats. Studied populations of S. spiralis have both balanced and depressing vitality structure that vary in time, apparently in responce to weather conditions in certain seasons. Most generative individuals of S. spiralis, irrespective of the vitality structure of population, continue their onthogenesis. This indicates favourable conditions for and stable state of populations. In considered habitats S. spiralis grows at pastures and mowed meadows that determines dependance of species’ presence on anthropogenic influence. The major threats for populations from Yaremche and Dora are development of cites or ploughing up. For population from vicinities of Shoomyna, the major threat is a decrease of herding with subsequent transformation of coenosis. |
| first_indexed | 2024-12-22T14:30:39Z |
| format | Article |
| id | doaj.art-fbadfcb4b9554a018dc1fe5627142bf0 |
| institution | Directory Open Access Journal |
| issn | 1996-4536 2311-0783 |
| language | English |
| last_indexed | 2024-12-22T14:30:39Z |
| publishDate | 2016-03-01 |
| publisher | Львівський національний університет імені Івана Франка |
| record_format | Article |
| series | Біологічні студії |
| spelling | doaj.art-fbadfcb4b9554a018dc1fe5627142bf02022-12-21T18:22:45ZengЛьвівський національний університет імені Івана ФранкаБіологічні студії1996-45362311-07832016-03-0110115516210.30970/sbi.1001.462Vitality structure of three populations of Spiranthes spiralis (Orchidaceae) from Ivano-Frankivs’k and Lviv regionsM. Burlaka0M. G. Kholodny Institute of Botany, NAS of Ukraine, Kyiv, UkraineThis paper presents the results of investigation of local populations of Spiranthes spiralis from Yaremche town and vicinity of villages Dora and Shoomyna including two new loci. Effective number and population density were analyzed; population vitality analysis was conducted. S. spiralis in considered localities usually forms small in area and effective number populations. They often consist of separated loci, adapting to favourable habitats. Studied populations of S. spiralis have both balanced and depressing vitality structure that vary in time, apparently in responce to weather conditions in certain seasons. Most generative individuals of S. spiralis, irrespective of the vitality structure of population, continue their onthogenesis. This indicates favourable conditions for and stable state of populations. In considered habitats S. spiralis grows at pastures and mowed meadows that determines dependance of species’ presence on anthropogenic influence. The major threats for populations from Yaremche and Dora are development of cites or ploughing up. For population from vicinities of Shoomyna, the major threat is a decrease of herding with subsequent transformation of coenosis.http://publications.lnu.edu.ua/journals/index.php/biology/article/view/76populationvitalitySpiranthes spiralisRed Book of UkraineSubcarpathian |
| spellingShingle | M. Burlaka Vitality structure of three populations of Spiranthes spiralis (Orchidaceae) from Ivano-Frankivs’k and Lviv regions Біологічні студії population vitality Spiranthes spiralis Red Book of Ukraine Subcarpathian |
| title | Vitality structure of three populations of Spiranthes spiralis (Orchidaceae) from Ivano-Frankivs’k and Lviv regions |
| title_full | Vitality structure of three populations of Spiranthes spiralis (Orchidaceae) from Ivano-Frankivs’k and Lviv regions |
| title_fullStr | Vitality structure of three populations of Spiranthes spiralis (Orchidaceae) from Ivano-Frankivs’k and Lviv regions |
| title_full_unstemmed | Vitality structure of three populations of Spiranthes spiralis (Orchidaceae) from Ivano-Frankivs’k and Lviv regions |
| title_short | Vitality structure of three populations of Spiranthes spiralis (Orchidaceae) from Ivano-Frankivs’k and Lviv regions |
| title_sort | vitality structure of three populations of spiranthes spiralis orchidaceae from ivano frankivs k and lviv regions |
| topic | population vitality Spiranthes spiralis Red Book of Ukraine Subcarpathian |
| url | http://publications.lnu.edu.ua/journals/index.php/biology/article/view/76 |
| work_keys_str_mv | AT mburlaka vitalitystructureofthreepopulationsofspiranthesspiralisorchidaceaefromivanofrankivskandlvivregions |