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Distribution Patterns and Long-Term Changes in Vascular Plants of Non-Littoral Areas in the SW Archipelago of Finland. Part VI. Trilliaceae, Asparagaceae, Amaryllidaceae, Iridaceae, Orchidaceae, Araceae, Alismataceae, Scheuchzeriaceae, Juncaginaceae, Juncaceae, Cyperaceae

Author:
Numers, Mikael von
Source:
Annales botanici Fennici 2019 v.56 no.1-3 pp. 145-173
ISSN:
0003-3847
Subject:
Alismataceae, Amaryllidaceae, Araceae, Asparagaceae, Cyperaceae, Iridaceae, Juncaceae, Juncaginaceae, Melanthiaceae, Orchidaceae, Scheuchzeriaceae, environmental factors, geographic information systems, islands, probability, regression analysis, vascular plants, Finland
Abstract:
Historical (mainly 1930s) and contemporary records of 482 vascular plant species or genera of non-littoral areas of 464 islands in the archipelago of SW Finland are compared, to visualise changes in distribution patterns, and to identify environmental variables that affect the distribution of the species. The environmental variables were measured in a GIS. Logistic regression analysis was used to find variables that affect the probability of species occurrences. Results, with distribution maps, are presented for each species. The families Trilliaceae, Asparagaceae, Amaryllidaceae, Iridaceae, Orchidaceae, Araceae, Alismataceae, Scheuchzeriaceae, Juncaginaceae, Juncaceae and Cyperaceae are presented in this sixth part of the series. A synthesis of the study will be presented in the last part of this article series.
Agid:
6482531