{"id":3842,"date":"2020-12-25T11:52:36","date_gmt":"2020-12-25T08:52:36","guid":{"rendered":"https:\/\/jfsi.ru\/?p=3842"},"modified":"2021-01-28T23:05:04","modified_gmt":"2021-01-28T20:05:04","slug":"3-4-2020-ruchinskaya_gornov","status":"publish","type":"post","link":"https:\/\/jfsi.ru\/en\/3-4-2020-ruchinskaya_gornov\/","title":{"rendered":"Influence of single trees on floristic diversity and population structure of rare plants species of steppe meadows"},"content":{"rendered":"<p style=\"text-align: left;\"><span style=\"color: #000000;\"><a style=\"color: #000000;\" href=\"https:\/\/jfsi.ru\/wp-content\/uploads\/2020\/12\/3-4-2020-Ruchinskaya_Gornov.pdf\"><img loading=\"lazy\" class=\"size-full wp-image-1122 alignright\" src=\"https:\/\/jfsi.ru\/wp-content\/uploads\/2018\/10\/pdf.png\" alt=\"\" width=\"32\" height=\"32\" \/><\/a><\/span><\/p>\n<p style=\"text-align: center;\"><span style=\"font-family: 'times new roman', times, serif; color: #000000;\"><strong>E.V. Ruchinskaya<sup>*<\/sup>, A.V. Gornov<\/strong><\/span><\/p>\n<p style=\"text-align: center;\"><span style=\"font-family: 'times new roman', times, serif; color: #000000;\"><em>Center for Forest Ecology and Productivity of the Russian Academy of Sciences (CEPF RAS)<\/em><\/span><\/p>\n<p style=\"text-align: center;\"><span style=\"font-family: 'times new roman', times, serif; color: #000000;\"><em>117997 Moscow, Russian Federation, Profsoyuznaya st. 84\/32 bldg. 14<\/em><\/span><\/p>\n<p style=\"text-align: center;\"><span style=\"font-family: 'times new roman', times, serif; color: #000000;\"><sup>*<\/sup>E-mail: <a style=\"color: #000000;\" href=\"mailto:elena.ruchinskaya@mail.com\">elena.ruchinskaya@mail.com<\/a><\/span><\/p>\n<p style=\"text-align: center;\"><span style=\"font-family: 'times new roman', times, serif; color: #000000;\">Received 01.11.2020<\/span><\/p>\n<p style=\"text-align: center;\"><span style=\"font-family: 'times new roman', times, serif; color: #000000;\">Accepted 14.12.2020<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-family: 'times new roman', times, serif; color: #000000;\">Steppe meadows preserved in the zone of deciduous forests of European Russia. These meadows have rich floristic composition and contribute significantly in biological diversity of territories. Bryansk region is one of the forest regions, where steppe meadows are sustained. There are meadows with high floristic diversity and big numbers of rare plant species. Trees from the surrounding forest areas insinuate constantly into these meadows. Most of the young trees die from regular fires and human agricultural activity. However, some individuals survive and pass into a generative state, in which they are relatively resistant to ground fires. The influence of single trees on the floristic diversity of steppe meadows was studied at two levels of organization of living systems \u2013 coenotic and population. Polydominant steppe meadows and polydominant steppe meadows with single generative trees were studied at the coenotic level. Coenopopulations of <em>Iris aphylla<\/em>, <em>Anemone sylvestris<\/em> and <em>Anthericum ramosum<\/em> were investigated at the population level. Different methods were used in the work: geobotanical, demographic, measuring environmental factors (luminance, steepness of slopes and frequency of fires). The study showed, that polydominant steppe meadows are supported on steep slopes unsuitable for haymaking and grazing and subjected to infrequent fire. These communities have high floristic diversity. Coenopopulations of model plants (<em>Anemone sylvestris,<\/em> <em>Anthericum ramosum<\/em> and <em>Iris aphylla)<\/em> are sustained there. Their ontogenetic spectra belong to left-hand type with maximum number of individuals. Single trees have controversial influence on polidominant steppe meadow vegetation. On the one hand, the species diversity of steppe meadows increases with the appearance of single generative trees because birds use adult trees like habitats and birds carry plant diasporas. On the other hand, mature trees shade grass canopy. It leads to decline of cover and occurrence of steppe and dry-meadow species. Also it affects plants coenopopulation structure. Ontogenetic spectrum of <em>Anemone sylvestris <\/em>stays full-stages but numbers of individuals is low. Ontogenetic spectrum of <em>Iris aphylla <\/em>loses ontogenetic stages (<em>g<sub>1<\/sub><\/em>, <em>g<sub>3<\/sub><\/em>) with numbers of individuals twice lower than on polidominant steppe meadows. Ontogenetic spectrum of <em>Anthericum ramosum<\/em> becomes incomplete with extremely low numbers of individuals.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-family: 'times new roman', times, serif; color: #000000;\"><strong>Key words:<\/strong> <em>steppe meadow, single trees, floristic diversity, coenopopulations, ontogenetic spectrum, state of coenopopulations, Anemone sylvestris, Anthericum ramosum, Iris aphylla<\/em><\/span><\/p>\n<p>&nbsp;<\/p>\n<p style=\"text-align: center;\"><span style=\"font-family: 'times new roman', times, serif; color: #000000;\"><strong>References<\/strong><\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-family: 'times new roman', times, serif; color: #000000;\">Averinova E.A., Ostepnjonnye opushechnye soobshhestva pamjatnikov prirody \u201cMelovickie Sklony\u201d i \u201cUrochishhe Pechnoe\u201d (Komarichskij rajon Brjanskoj oblasti) (Steppe marginal communities of natural monuments \u201cMelovitsky Slopes\u201d and \u201cUrochishche Pechnoye\u201d (Komarichsky district, Bryansk region)), <em>Izuchenie<\/em> <em>i<\/em> <em>ohrana<\/em> <em>biologicheskogo<\/em> <em>raznoobrazija<\/em> <em>Brjanskoj<\/em> <em>oblasti<\/em><em>: <\/em><em>materialy<\/em> <em>po<\/em> <em>vedeniju<\/em> <em>Krasnoj<\/em> <em>knigi<\/em> <em>Brjanskoj<\/em> <em>oblasti<\/em><em>,<\/em> Issue 5, Bryansk, 2010, pp. 21-26.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-family: 'times new roman', times, serif; color: #000000;\">Barykina R.P., Potapova N.F., Biomorfologicheskij analiz vidov roda <em>Anemone<\/em> L. flory byvshego SSSR v hode ontogeneza (Biomorpological analysis of <em>Anemone <\/em>L. species during ontogenesis), <em>Byulleten&#8217; Moskovskogo Obshchestva Ispytatelei Prirody, Otdel Biologicheskii,<\/em> 1994, Vol. 99, Issue 5, pp. 124-137.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-family: 'times new roman', times, serif; color: #000000;\">Bosek P.Z., O rasprostranenii stepnyh rastenij na territorii Brjanskoj oblasti (On the distribution of steppe plants in the Briansk district), <em>Botanicheskij zhurnal<\/em>, 1980, Vol. 65, No 6, pp. 829-836.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-family: 'times new roman', times, serif; color: #000000;\">Bulohov A.D., Stepnye jelementy vo flore Brjanskoj oblasti (Steppe elements in the flora of Bryansk district), <em>Botanicheskij zhurnal<\/em>, 1977, No. 10, pp. 1505-1511.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-family: 'times new roman', times, serif; color: #000000;\">Bulohov A.D., Travjanaja rastitel&#8217;nost&#8217; Jugo-Zapadnogo Nechernozem&#8217;ja Rossii (Herbaceous vegetation of South-West Nonnlack Soil Zone of Russia), Bryansk, Izd-vo BGPU, 2001. 296 p.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-family: 'times new roman', times, serif; color: #000000;\">Bulohov A.D., Velichkin Je.M., <em>Opredelitel&#8217; rastenij Jugo-Zapadnogo Nechernozem&#8217;ja Rossii (Brjanskaja, Kaluzhskaja, Smolenskaja, Orlovskaja oblasti)<\/em> (Keys to plants of the south-western Non-Black Earth region of Russia (Bryansk, Kaluga, Smolensk, Oryol regions), Bryansk: Izd-vo BGPU, 1997, 320 p.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-family: 'times new roman', times, serif; color: #000000;\"><em>Cenopopuljacii rastenij (ocherki populjacionnoj biologii)<\/em> (Plant coenopopulations (essays of plant population biology)), Moscow: \u201cNauka\u201d, 1988, 184 p.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-family: 'times new roman', times, serif; color: #000000;\">Chernova N.M., Bylova A.M., <em>Obshhaja jekologija<\/em> (General ecology), Moscow: Drofa, 2004, 416 p.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-family: 'times new roman', times, serif; color: #000000;\">Cramp S. <em>The complete birds of the Western Palearctic<\/em>, UK, 1998. 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(Vegetation changes in meadows under the influence of Scots pine (<em>Pinus sylvestris<\/em> L.)), <em>Vestnik Sankt\u2013Peterburgskogo universiteta<\/em>, 2012, Ser. 3, Issue 2, pp. 3-12.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-family: 'times new roman', times, serif; color: #000000;\">Zrjanin V.A., Vlijanie murav&#8217;ev roda <em>Lasius<\/em> na pochvy lugovyh biogeocenozov (Effects of ants of the genus <em>Lasius<\/em> on soils of meadow biogeocenoses), <em>Uspehi sovremennoj biologii<\/em>, 2003, Vol. 123, No 3, pp. 278-287.<\/span><\/p>\n<p style=\"text-align: justify;\">\n","protected":false},"excerpt":{"rendered":"<p>E.V. Ruchinskaya*, A.V. Gornov Center for Forest Ecology and Productivity of the Russian Academy of Sciences (CEPF RAS) 117997 Moscow, Russian Federation, Profsoyuznaya st. 84\/32 bldg. 14 *E-mail: elena.ruchinskaya@mail.com Received 01.11.2020 Accepted 14.12.2020 Steppe&#46;&#46;&#46;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[19],"tags":[],"_links":{"self":[{"href":"https:\/\/jfsi.ru\/en\/wp-json\/wp\/v2\/posts\/3842"}],"collection":[{"href":"https:\/\/jfsi.ru\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/jfsi.ru\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/jfsi.ru\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/jfsi.ru\/en\/wp-json\/wp\/v2\/comments?post=3842"}],"version-history":[{"count":10,"href":"https:\/\/jfsi.ru\/en\/wp-json\/wp\/v2\/posts\/3842\/revisions"}],"predecessor-version":[{"id":4051,"href":"https:\/\/jfsi.ru\/en\/wp-json\/wp\/v2\/posts\/3842\/revisions\/4051"}],"wp:attachment":[{"href":"https:\/\/jfsi.ru\/en\/wp-json\/wp\/v2\/media?parent=3842"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/jfsi.ru\/en\/wp-json\/wp\/v2\/categories?post=3842"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/jfsi.ru\/en\/wp-json\/wp\/v2\/tags?post=3842"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}