Baltic Coastal Zone

Journal of Ecology and Management of the Coastline

Vol. 17 pp. 115 - 126 2013

ISBN 1643-0115

©Copyright by Institute of Biology and Environmental Protection of the Pomeranian University in Słupsk

Original research paper

Received:

Accepted:

11 March 2014

04 April 2014

 

PARTICIPATION OF TAXA OF REYNOUTRIA GENUS IN FRINGE COMMUNITIES OF SELECTED MIDFIELD BIOTOPES OF THE SŁOWIŃSKIE COAST

Zbigniew Sobisz*, Mariola Truchan & Zbigniew Osadowski

Department of Botany and Nature Protection, Institute of Biology and Environmental Protection, Pomeranian University in Słupsk, ul. Arciszewskiego 22b, 76-200 Słupsk, Poland e-mail: sobisz@apsl.edu.pl (*corresponding author)

Abstract

The paper presents results of the research study into fringe communities with participation of the species of the genus Reynoutria at the Słowińskie Coast (Central Pomerania). Reynoutria japonica and R. sachalinensis were introduced from East Asia at the turn of the 19th and the 20th century. Sakhalin knotweed was described at the Słowińskie Coast in 1921 in Darłowo, while Reynoutria japonica in 1937 in Ustka. Their hybrid – Reynoutria xbohemica was described for the first time in 1980s at the territory of the Czech Republic. The Polish stands Reynoutria xbohemica were mentioned at the end of the 20th century. In this paper, the stands of Reynoutria xbohemica are the new ones in the Northern Poland, not mentioned so far. Nowadays, Reynoutria taxa cause much economic and natural loss. They are especially hazardous in manor parks, gutters and ditches, meadows and pastures. During the research tests conducted in the period 2008-2012, 105 phytosociological relevés were taken with the application of the Braun-Blanquet’s method generally used in Poland. Phytocenoses with participation of the taxa of Reynoutria genus were found in fringe communities from the of Artemisietea vulgaris class and from Petasition officinalis alliance: Aegopodio-Petasitetum hybridi, Heracleeteum mantegazziani, Aegopodio-Reynoutrietum sachalinensis and from Senecionion fluviatile alliance: Polygonetum cuspidati, Impatienti glanduliferae-Convolvuletum sepium, Rudbeckio-Solidaginetum.

Key words: Reynoutria taxa, kenophytes, fringe communities, midfield biotopes, the Słowińskie Coast