caa a22 4500 606164618 CHVBK 20210128100649.0 cr unu---uuuuu 210128e20150101xx s 000 0 eng 10.1007/s10144-014-0466-x doi (NATIONALLICENCE)springer-10.1007/s10144-014-0466-x Variations in the population structure and ecology of Matteuccia struthiopteris [Elektronische Daten] [Mirosław Grzybowski, Marek Kruk] The aim of the study was to investigate variation in the structure of a population of Matteuccia struthiopteris (L.) Tod. in N-E Poland depending on its location in a river valley and light availability under tree canopies. Ordination statistical methods and structural equation modeling were used to identify ecological relationships in the population. The analysis showed that optimum growth conditions of M. struthiopteris depend on the canopy cover. As the shading increased, the size of trophophyllous leaves and the production of sporophylls decreased. The relationship between the canopy cover and the optimum growth conditions was best expressed by rootstock diameter and, to a lesser extent, by the number and height of trophophylls. An indirect relationship between the number and height of sporophylls and the canopy cover, by rootstock size and trophophyll quantity, was also identified. This relationship may be caused by the predominance of vegetative forms of reproduction. Based on the correlations between the landscape position vs. rootstock diameter and trophophyll height, a difference in the habitat colonization potential of M. struthiopteris could be detected. Three spatial clusters of M. struthiopteris in the river valley were identified: river bank, river terrace, river valley slopes. These relationships and the distribution of other herbaceous plant species occurring at the plots indicate that the distribution pattern of M. struthiopteris in the study area is determined by diverse environmental conditions, however mainly by light conditions. The Author(s), 2014 Canopy cover nationallicence Fern ecology nationallicence Landscape position nationallicence Ordination nationallicence Structural equation modelling nationallicence Grzybowski Mirosław Department of Applied Ecology, University of Warmia and Mazury in Olsztyn, Oczapowskiego 5, 10-719, Olsztyn, Poland aut Kruk Marek Department of Applied Ecology, University of Warmia and Mazury in Olsztyn, Oczapowskiego 5, 10-719, Olsztyn, Poland aut Population Ecology Springer Japan 57/1(2015-01-01), 127-141 1438-3896 57:1<127 2015 57 10144 https://doi.org/10.1007/s10144-014-0466-x text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s10144-014-0466-x text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Grzybowski Mirosław Department of Applied Ecology, University of Warmia and Mazury in Olsztyn, Oczapowskiego 5, 10-719, Olsztyn, Poland aut NATIONALLICENCE 700 1- Kruk Marek Department of Applied Ecology, University of Warmia and Mazury in Olsztyn, Oczapowskiego 5, 10-719, Olsztyn, Poland aut NATIONALLICENCE 773 0- Population Ecology Springer Japan 57/1(2015-01-01), 127-141 1438-3896 57:1<127 2015 57 10144