The Ontogenesis and Structure of Population of Rindera tetraspis Pall. (Boraginaceae) in Orenburg Oblast
Tóm tắt
Assessment of the modern status of populations of rare plant species by population-ontogenetic methods is used for solving problems of conservation and restoration of natural communities. The object of the study is a rare species of the European Russia, Rindera tetraspis Pall., a poorly studied threatened steppe endemic. The purpose of the research was to assess the modern status and ontogenetic structure of cenopopulations of R. tetraspis in the Urals within Orenburg oblast. Three administrative districts of Orenburg oblast in the Urals were surveyed in 2016–2019, and as a result, six cenopopulations were identified and studied. Their phytocenotic allocation was assessed by conventional geobotanical methods. It has been revealed that wheat grass (Agropyron desertorum), wormwood (Artemisia lercheana)–Psathyrostachys calciphyte, and bluegrass (Poa bulbosa ssp. vivipara)–feather-grass (Stipa capillata) steppe communities predominate. The main population characteristics, the density of plants, and the ontogenetic composition, have been determined. The total density in the surveyed cenopopulations varies from 4.7 to 10.7 plants/m2, and the effective density is from 3.2 to 5.9 plants/m2. The ontogenesis has been described and eight ontogenetic stages have been revealed. Senile plants were not found. All the studied cenopopulations of R. tetraspis are normal incomplete and are dominated by middle-aged generative plants. According to the delta–omega classification, there are three are young, two transitional, and one mature cenopopulations. Their status is relatively satisfactory, but only one of the six is protected: it is located in the specially protected natural area Troitskie Melovye Mountains. Regular monitoring of the status of the populations is necessary for stronger protection of the species.
Tài liệu tham khảo
Abramova, L.M., Il’ina, V.N., Karimova, O.A., and Mustafina, A.N., Comparative analysis of population structure of Hedysarum grandiflorum (Fabaceae) in Samara Oblast and Bashkortostan Republic, Rastit. Resur., 2016, vol. 52, no. 2, pp. 225–239.
Abramova, L.M., Mustafina, A.N., Karimova, O.A., and Ilyina, V.N., Features of the organisation of populations of a rare species Cephalaria uralensis (Murr.) Schrad. ex Roem. et Schult. (Dipsacaceae, Magnoliopsida) in the Trans-Volga and Cis-Urals regions, Biol. Bull., 2019a, vol. 46, no. 10, pp. 1199–1205.
Abramova, L.M., Mustafina, A.N., Karimova, O.A., Golovanov, Ya.M., and Shigapov, Z.Kh., Structure and state of populations of three rare species of the genus Hedysarum (Fabaceae) in the South Urals, Bot. Zh., 2019b, vol. 104, no. 5, pp. 729–740.
Akramov, S.T., Kiyamitdinova, F., and Yunusov, S.Yu., Alkaloids of Rindera cyclodonata, R.°echinate and Heliotropium dasycarpum, Khim. Prir. Soedin., 1967, no. 5, p. 351.
Flora Sibiri (Flora of Siberia), vol. 7: Sem. Berberidaceae – Grossulariaceae (Family. Berberidaceae – Grossulariaceae), Novosibirsk: VO “Nauka”, 1994.
Glotov, N.V., On the estimation of the age structure parameters of plant populations, in Zhizn’ Populyatsii v geterogennoi srede (Life of Populations in a Heterogeneous Environment), Ioshkar-Ola, 1998, pp. 146–149.
Karimova, O.A., Mustafina, A.N., Golovanov, Ya.M., and Abramova, L.M., Age structure of coenopopulations of Patrinia sibirica (Valerianaceae) in south uraL, Rastit. Resur., 2016, vol. 52, no. 1, pp. 49–65.
Karimova, O.A., Abramova, L.M., and Golovanov, Ya.M., Analysis of the current status of populations of rare plant species of nature monument of Troicki chalk mountains (Orenburg region), Arid Ecosyst., 2017, vol. 7, no. 1, pp. 54–62.
Karimova, O.A., Abramova, L.M., Il’ina, V.N., and Mustafina, A.N., Structure of cenopopulations of Anthemis trotzkiana Claus in the Samara and Orenburg oblasts, Byull. Mosk. O-va. Ispyt. Prir., Otd. Biol., 2018, vol. 123, no. 5, pp. 58–66.
Krasnaya kniga Altaiskogo kraya (Red Book of the Altai Krai), vol. 1: Redkie i nakhodyashchiesya pod ugrozoi ischeznoveniya vidy rastenii i gribov (Rare and Endangered Species of Plants and Fungi), Barnaul: Altaisk. Gos. Univ., 2016.
Krasnaya kniga Krasnodarskogo kraya. Rasteniya i griby (Red Book of the Krasnodar Territory. Plants and Fungi), Litvinskaya, S.A, Ed., 2017, 3rd ed.
Krasnaya kniga Samarskoi oblasti (Red Book of the Samara Oblast), vol. 1: Redkie vidy rastenii i gribov (Rare Species of Plants and Fungi), Senator, S.A. and Saksonov, S.V., Eds., Samara: Samarsk. Gos. Oblast. Akad., 2017.
Krasnaya kniga Saratovskoi oblasti. Griby. Lishainiki. Rasteniya. Zhivotnye (Red Book of the Saratov Oblast. Fungi. Lichens. Plants. Animals), Saratov: Papirus, 2021.
Krasnayakniga Orenburgskoi oblasti. Redkie i nakhodyashchiesya pod ugrozoi ischeznoveniya vidy zhivotnykh, rastenii i gribov (Red Book of the Orenburg Oblast. Rare and Endangered Species of Animals, Plants and Fungi), Voronezh, 2019.
McCune, B. and Grace, J.B., Analysis of Ecological Communities, Gleneden Beach, Oregon, 2002.
Mirkin, B.M. and Rozenberg, G.S., Fitotsenologiya. Printsipy i metody (Phytocenology. Principles and Methods), Moscow: Nauka, 1978.
Plants of the World Online, 2023. https://powo.science.kew.org/. Cited May 16, 2023.
Rodriguez-Riaio, T., Ortega-Olivencia, A., and Devesa, J.A., Reproductive biology in Cytisus multiflorus (Fabaceae), Ann. Bot. Fenn., 2004, vol. 41, no. 3, pp. 179–188.
Schemske, D.W., Plant populations. Perspectives on plant population ecology, Science, 1985, vol. 227, no. 4685, pp. 405–406.
Shatko, V.G., Gorbunov, Yu.N., and Kryuchkova, V.A., Characteristics of the ecology and population status of the rare species Rindera tetraspis Pall. in Southeast Crimea, Ekol. Sist. Prib., 2020, no. 7, pp. 17–24.
Uranov, A.A., The age spectrum of cenopopulations as a function of time and energy wave processes, Nauchn. Dokl. Vyssh. Shk., Biol. Nauki, 1975, vol. 2, pp. 7–34.
Zaitsev, G.N., Matematika v eksperimental’noi biologii (Mathematics in Experimental Biology), Moscow: Nauka, 1990.
Zhivotovskii, L.A., Ontogenetic state, effective density and classification of populations, Ekologiya, 2001, vol. 2, no. 1, pp. 3–7.
Zhukova, L.A., Populyatsionnaya zhizn’ lugovykh rastenii (Population Life of Meadow Plants), Ioshkar-Ola: RIIK “Lanar”, 1995.
Zhukova, L.A., Diversity of ontogenetic pathways in plant populations, Russ. J. Ecol., 2001, vol. 32, no. 3, pp. 151–158.