Populations of Agrostis diluta Kurcz. and Psathyrostachys caespitosa (Sukaczev) Peschkova in Yakutia: dynamics of vitality
In Yakutia, natural floodplain meadows and steppes have long been involved in economic activities. To develop methods of rational use, one needs to constantly consider the state of vegetation, mainly its constituent populations. Our research focuses on studying the dynamics of the vitality of the po...
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| Format: | Article |
| Language: | English |
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Altai State University
2021-12-01
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| Series: | Acta Biologica Sibirica |
| Subjects: | |
| Online Access: | https://abs.pensoft.net/article/78452/download/pdf/ |
| _version_ | 1797723250216665088 |
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| author | Vilyura E. Kardashevskaya Nyurguyana N. Egorova |
| author_facet | Vilyura E. Kardashevskaya Nyurguyana N. Egorova |
| author_sort | Vilyura E. Kardashevskaya |
| collection | DOAJ |
| description | In Yakutia, natural floodplain meadows and steppes have long been involved in economic activities. To develop methods of rational use, one needs to constantly consider the state of vegetation, mainly its constituent populations. Our research focuses on studying the dynamics of the vitality of the populations of the Agrostis diluta Kurcz. and steppe Psathyrostachys caespitosa (Sukaczev) Peschkova cereals. These species play an essential role in the composition of vegetation cover. We determined the vitality coefficient IVC. Our study of populations over several years has revealed the dynamic mobility of the vital structure, which is of adaptive significance and ensures the sustainability of populations. We have found that the vital structure of the cereal populations of the meadow Agrostis diluta and the steppe Psathyrostachys caespitosa during long-term studies (2007–2013 and 2007–2016, respectively) is heterogeneous. In unfavorable humidification conditions, we characterize years as depressive. Under favorable conditions of humidification, they quickly turn into thriving plants. In addition to the weather of the vegetation periods, habitat specificity affects the vitality of species populations that differ in ecological and coenotic characteristics. The Q quality index and IVC correspond to each other by year and form a clear descending order during the transition from a thriving to a depressive state. Currently, the vital state of the populations of both species is satisfactory. |
| first_indexed | 2024-03-12T09:59:13Z |
| format | Article |
| id | doaj.art-46ef65b257c94d0da4ef59af9fe60e81 |
| institution | Directory Open Access Journal |
| issn | 2412-1908 |
| language | English |
| last_indexed | 2024-03-12T09:59:13Z |
| publishDate | 2021-12-01 |
| publisher | Altai State University |
| record_format | Article |
| series | Acta Biologica Sibirica |
| spelling | doaj.art-46ef65b257c94d0da4ef59af9fe60e812023-09-02T11:48:39ZengAltai State UniversityActa Biologica Sibirica2412-19082021-12-01749150310.3897/abs.7.e7845278452Populations of Agrostis diluta Kurcz. and Psathyrostachys caespitosa (Sukaczev) Peschkova in Yakutia: dynamics of vitalityVilyura E. Kardashevskaya0Nyurguyana N. Egorova1North-Eastern Federal UniversityInstitute for Biological Problems of Criolithozone, SB RASIn Yakutia, natural floodplain meadows and steppes have long been involved in economic activities. To develop methods of rational use, one needs to constantly consider the state of vegetation, mainly its constituent populations. Our research focuses on studying the dynamics of the vitality of the populations of the Agrostis diluta Kurcz. and steppe Psathyrostachys caespitosa (Sukaczev) Peschkova cereals. These species play an essential role in the composition of vegetation cover. We determined the vitality coefficient IVC. Our study of populations over several years has revealed the dynamic mobility of the vital structure, which is of adaptive significance and ensures the sustainability of populations. We have found that the vital structure of the cereal populations of the meadow Agrostis diluta and the steppe Psathyrostachys caespitosa during long-term studies (2007–2013 and 2007–2016, respectively) is heterogeneous. In unfavorable humidification conditions, we characterize years as depressive. Under favorable conditions of humidification, they quickly turn into thriving plants. In addition to the weather of the vegetation periods, habitat specificity affects the vitality of species populations that differ in ecological and coenotic characteristics. The Q quality index and IVC correspond to each other by year and form a clear descending order during the transition from a thriving to a depressive state. Currently, the vital state of the populations of both species is satisfactory.https://abs.pensoft.net/article/78452/download/pdf/Plant populationpopulation dynamicsvitalityq |
| spellingShingle | Vilyura E. Kardashevskaya Nyurguyana N. Egorova Populations of Agrostis diluta Kurcz. and Psathyrostachys caespitosa (Sukaczev) Peschkova in Yakutia: dynamics of vitality Acta Biologica Sibirica Plant population population dynamics vitality q |
| title | Populations of Agrostis diluta Kurcz. and Psathyrostachys caespitosa (Sukaczev) Peschkova in Yakutia: dynamics of vitality |
| title_full | Populations of Agrostis diluta Kurcz. and Psathyrostachys caespitosa (Sukaczev) Peschkova in Yakutia: dynamics of vitality |
| title_fullStr | Populations of Agrostis diluta Kurcz. and Psathyrostachys caespitosa (Sukaczev) Peschkova in Yakutia: dynamics of vitality |
| title_full_unstemmed | Populations of Agrostis diluta Kurcz. and Psathyrostachys caespitosa (Sukaczev) Peschkova in Yakutia: dynamics of vitality |
| title_short | Populations of Agrostis diluta Kurcz. and Psathyrostachys caespitosa (Sukaczev) Peschkova in Yakutia: dynamics of vitality |
| title_sort | populations of agrostis diluta kurcz and psathyrostachys caespitosa sukaczev peschkova in yakutia dynamics of vitality |
| topic | Plant population population dynamics vitality q |
| url | https://abs.pensoft.net/article/78452/download/pdf/ |
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