Population ecology of the endangered aquatic carnivorous macrophyte Aldrovanda vesiculosa at a naturalised site in North America

0447906 - BÚ 2016 RIV GB eng J - Journal Article
Cross, A. T. - Skates, L. M. - Adamec, Lubomír - Hammond, C. M. - Sheridan, P. M. - Dixon, K. W.
Population ecology of the endangered aquatic carnivorous macrophyte Aldrovanda vesiculosa at a naturalised site in North America.
Freshwater Biology. Roč. 60, č. 9 (2015), s. 1772-1783. ISSN 0046-5070. E-ISSN 1365-2427
Institutional support: RVO:67985939
Keywords : aquatic carnivorous plant * competition * population ecology
Subject RIV: EF - Botanics
Impact factor: 2.933, year: 2015

Aldrovanda vesiculosa is an aquatic carnivorous plant native to nutrient impoverished wetland systems in Australia, Africa, Asia, and Europe that has declined dramatically throughout its native range in the last century. In contrast to the decline of the species throughout its native range, a number of large A. vesiculosa populations have become naturalised in North America. This study examines the population ecology of A. vesiculosa at one of these naturalised sites and assesses the species’ potential invasiveness in terms of its ecological characteristics. Transect and quadrat surveys were used to determine the response of morphology, fecundity and spatial distribution to putative biotic and environmental variables, with glasshouse trials. The species’ growth and reproductive potential are highest in shallow areas harbouring loose vegetation assemblages, with over two thirds of all individuals recorded from water 10−50 cm in depth and in areas with < 50% native macrophyte cover.
Permanent Link: http://hdl.handle.net/11104/0249693