Briza media L. (Трясунка средняя, Poaceae)

Описание: Пленчатая зерновка раковинообразная, округло-овальная, 2,5 – 3,5 мм длиной, 1,5 – 2,25 мм шириной, 0,5 мм толщиной. Внешняя цветковая чешуя округло-выпуклая, внутренняя меньше размером, такой же формы, пленчатая. Поверхность слабо морщинистая, слабо блестящая. Стерженек очень короткий (Доброхотов, 1961).

Распространение: барохория (Strykstra et al., 2002; Palisaar, 2006); анемохория (Ulbrich, 1928; Simeon, 1928; Hensen, Muller, 1997; Engler et al, 2009; Tackenberg, 2001); эпизоохория (Poschlod et al., 1998; Römermann et al., 2005; Botanischer…); эндозоохория (Mueller-Schneider, 1954; Cosyns, 2003 – 2004; Jaroszewicz, Pirożnikow, 2008; Tackenberg, 2001*; Botanischer…)

Вес 1000 диаспор, г: 0,23 (Grime et al., 1981; Life form…); 0,27 (Bakker et al., 1996); 0, 37 (Akinola et al., 1998); 0,3893 (Török et al., 2013); 0,4 г. (Доброхотов, 1961; Royal…; Jelitto...); 0,41 (Cerabolini et al., 2003); 0,50 (Römermann et al., 2005; Oster et al., 2009); 0,523 (Sera, 2005); 0,53 г (Jensen, 2004); 0,6г (Hensen, Muller, 1997; Datenbank…); 0,7 (Weberseeds...); 0,885 (D’hondt & Hoffmann, 2010)

Литература: 

Доброхотов В.Н. Семена сорных растений М.: Сельхозиздат, 1961. 414 с.

Akinola M.O., Thompson K., Hillier S.H., 1998. Development of soil seedbanks beneath synthesized meadow communities after seven years of climate manipulation. Seed Sci. Res. Vol. 8, N 4. P. 493-500.

Bakker, J.P., Bakker, E.S., Rosén, E. ,Verweij, G.L., Bekker, R.M. Soil seed bank composition along a gradient from dry alvar grassland to Juniperus shrubland // Journal of Vegetation Science 1996, Vol. 7, N 2. P. 165-176.

Botanischer Informationsknoten Bauern. Arbeitsgemeinschaft Flora von Bauern
http://www.bayernflora.de/de/index.php

Cerabolini B., Ceriani R. M., Caccianiga M., De Andreis R., Raimondi B. Seed size, shape and persistence in soil: a test on Italian flora from Alps to Mediterranean coasts // Seed Science Research. 2003 Vol. 13, N 1. P. 75–85.

Cosyns E. Ungulate Seed dispersal Aspect of endozoochory in a semi-natural landscape Thesis submitted in fulfilment of the requirements for the degree of Doctor [Ph.D.] in Sciences Universiteit Gent Faculteit Wetenschappen Academiejaar 2003-2004.

D’hondt B., Hoffmann M. A reassessment of the role of simple seed traits in mortality following herbivore ingestion // Plant Biology 2011. Vol. 13, N 10. P. 118 – 124.

Datenbank biologisch-ökologischer Merkmale der Flora von Deutschland
http://www2.ufz.de/biolflor/overview/gattung.jsp

Engler R., Randin C.F., Vittoz P., Czaka T., Beniston M., Zimmermann N.E., Guizon A. Predicting future distribution of mountain plants under climate change: does dispersal, capacity matter. Ecography. 2009. Vol. 32. P. 34 – 45.

Grime J.P., Mason G., Curtis A.V., Rodman J., Band S.R., Mowforth M.A.G., Neal A.M., Shaw S. A comparative study of germination characteristic in a local flora // Journ. Ecol. 1981. Vol. 69. P. 1017 – 1059.

Hensen, I. Muller, C. 1997. Experimental and structural investigations of anemochorous dispersal. - Plant Ecol. 133: 169-180.

Jaroszewicz B., Pirożnikow E. Diversity of plant species eaten and dispersed by the European bison Bison bonasus in Białowieża Forest // European Bison Conservation Newsletter. 2008. Vol 1 P. 14–29.

Jelitto perennial seeds URL: http://www.jelitto.com/index.php?lang=0&

Jensen K. 2004. Dormancy patterns, germination ecology and seed-bank types of twenty temperate fen grassland species // Wetlands 24: 152 – 166.

Life form, breeding system and seed mass for 1116 UK species (Table 1) and 180 Peru. Electronic resource. Mode of access: http://people.ucalgary.ca/~smvamosi/UK_Peru_data.htm

Mueller-Schneider, P. Ueber endozoochore Samenverbreitung durch weidende Haustiere // Vegetatio. 1954. Vol. 5. P. 23-28.

Oster M, Ask K, Cousins S.A.O., Eriksson O. Dispersal and establishment limitation reduces the potential for successful restoration of semi-natural grassland communities on former arable fields // Journal of Applied Ecology. 2009. Vol. 46. P. 1266–1274.

Palisaar J. The floodplain medows of Soomaa National Park Estonia. Dissertation zur Erlangung des Doktorgrades der Naturwissenschaftlichen Fakultat III – Biologie und vorklinische Medizin – der Universitat Regensburg. Edertal, 2006. 261 p.

Poschlod P., Kiefer S., Tränkle U., Fischer S., Bonn, S. Plant species richness in calcareous grasslands as affected by dispersability in space and time // Applied Vegetation Science 1998. Vol. 1, N 1. P. 75-91.

Römermann C., Tackenberg O., Poschlod P. How to predict attachment potentials of seeds to sheep and cattle coat from simple morphological seed traits // Oikos. 2005. Vol. 110, N 2. P. 219–230.

Royal Botanic Gardens Kew. (2008) Seed Information Database (SID). Version 7.1. Available from: http://data.kew.org/sid / (May 2008)

Šera B. Diaspores – potential or real power of wild plants? Life cycle // Ekológia (Bratislava) 2005. Vol. 24, Supplement 1, p. 7–27.

Simeon U. (1928): Samenbildung und Samenverbreitung bei den in der Schweiz unterhalb der Waldgrenze wachsenden Pflanzen. PhD thesis ETH Zürich, 139 pp.

Strykstra R.J., Bekker R.M., Van Andel J. Dispersal and life span spectra in plant communities: a key to safe site dynamics, species coexistence and conservation // Ecography. 2002. Vol. 25. P. 145 – 160.

Tackenberg O. Metoden zur Bewertung gradueller Unterscheide des Ausbreitungspotentials von Pflanzenarten. Modelierung des Ausbreitungspotentials und Regelbasierte Abteilung des Fernausbreitungspotentials. Dissertation zur Erlangung des Doktorgrades der Naturwissenschaften. Marburg/Lahn. 2001. 132 S.

Török P., Miglécz T., Valkó O., Tóth K., Kelemen A., Albert Á.-J., Matus G., Molnár A.V., Ruprecht E., Papp L., Deák B., Horváth O., Takács A., Hüse B., Tóthmérész B. New thousand-seed weight records of the pannonian flora and their application in analysing social behaviour types // Acta Bot. Hungarica. 2013. Vol. 55, № 3–4. P. 429–472.

Ulbrich E. Biologie der Fruchte und Samen (Karpobiologie). Berlin: J. Springer, 1928. IX, 230 S.

Weberseeds.de URL: http://www.weberseeds.de/index.html

Этикетка: Давыдково. 28.07.1941.