Details zur Publikation

Kategorie Textpublikation
Referenztyp Zeitschriften
Titel (primär) Seed mass variation in central European populations of invasive Impatiens glandulifera Royle
Autor Chmura, D.; Csontos, P.; Sendek, A.
Journal / Serie Polish Journal of Ecology
Erscheinungsjahr 2013
Department BZF
Band/Volume 61
Heft 4
Seite von 805
Seite bis 809
Sprache englisch
Keywords Himalayan balsam; seed polymorphism; plant invasion
UFZ Querschnittsthemen RU1;
Abstract Positive correlation between seed weight and germination capacity is common for the vast majority of species. It is also known that seed weight can vary along a latitudinal gradient. The seed mass of the invasive Himalayan balsam (Impatiens glandulifera), which is native to East Asia, was examined in relation to distinct geographical regions in Poland (Bielsko-Biala: N49 degrees 52'32", E18 degrees 57'43"; Katowice: N50 degrees 12'8.3", E18 degrees 57'26"; Tworkow: N50 degrees 01'22", E18 degrees 15'28"); Hungary (Rum: N47 degrees 06'41", E16 degrees 50'45"; Rabahidveg: N47 degrees 03'54", E16 degrees 44'59") and Germany (Halle: N51 degrees 28'47", E11 degrees 57'12"; Marburg: N50 degrees 48'32", E8 degrees 46'31"). The study revealed that seed mass varied both among the countries and among specific populations within Poland and Germany. In Hungary, the 50 seed lots were the lightest 0.29 g and 0.31 g in respective localities and the heaviest in single populations in Poland - 0.61 g and in Germany - 0.57 g. In the present study, populations located more southwards had the lightest seeds in contrast to the commonly encountered pattern. Higher temperature, lower precipitation and as a consequence, a shortage of water can be crucial factors that affect the seed mass of I. glandulifera. Taking into account the lower frequency and abundance of the species in Hungary, the lower seed mass may probably conribute to the limited distribution range in this region.
dauerhafte UFZ-Verlinkung
Chmura, D., Csontos, P., Sendek, A. (2013):
Seed mass variation in central European populations of invasive Impatiens glandulifera Royle
Pol. J. Ecol. 61 (4), 805 - 809