NDLI: Elodea canadensis (Michx.) in Polish lakes: a non-aggressive addition to native flora

Content Provider	Springer Nature Link
Author	Kolada, Agnieszka Kutyła, Sebastian
Copyright Year	2016
Abstract	Non-indigenous invasive aquatic plants affect macrophyte community composition, structure and abundance, and are recognised as one of the major causes of biodiversity loss in aquatic ecosystem. Their mass development poses serious ecological, sociological and economical threats in many countries. We investigated biological, physicochemical, hydromorphological and geographical data from 447 Polish lowland lakes to recognise the phenomenon of invasive macrophyte species and to identify environmental factors that determine their occurrence and abundance. We focused on Elodea canadensis (EC) as the most common and widespread alien hydrophyte in Poland. Phytocoenoses of EC were present in 40 % of analysed lakes. The area occupied by EC ranged from 2.3 to 5.5 % of the total vegetated area per year, on average, with a maximum of 37.8 %. A comparison between two sub-periods (2005–2009 and 2010–2013) revealed a lack of increase in EC mean abundance within the analysed period. Likewise, no evidence of EC effects on the native flora, its richness and diversity and no effects on the ecological status of the lakes were found. In the analysed period, EC did not demonstrate invasive character in Polish lakes. The habitat preference of EC was biased towards larger and deeper lakes located at higher altitudes, with longer water retention times, better water quality and better ecological status based on macrophytes compared with non-invaded lakes. We found altitude and water quality as the main determinants of EC occurrence within the sampled area. We suggest that both climate warming and accelerated eutrophication may contribute to reducing EC spread in Europe observed during recent decades.
Starting Page	3251
Ending Page	3264
Page Count	14
File Format	PDF
ISSN	13873547
Journal	Biological Invasions
Volume Number	18
Issue Number	11
e-ISSN	15731464
Language	English
Publisher	Springer International Publishing
Publisher Date	2016-07-08
Publisher Place	Cham
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Canadian waterweed Alien species Invasive plants Macrophytes Lakes Poland Ecology Freshwater & Marine Ecology Plant Sciences Developmental Biology
Content Type	Text
Resource Type	Article
Subject	Ecology Ecology, Evolution, Behavior and Systematics

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