The ecology of Lobelia dortmanna L. 2, Population structure and dynamics within a constant depth interval in oligotrophic lakes

Szmeja, Józef

doi:ISSN 0420-9036

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The ecology of Lobelia dortmanna L. 2, Population structure and dynamics within a constant depth interval in oligotrophic lakes Szmeja, Józef

Object structure

The ecology of Lobelia dortmanna L. 2, Population structure and dynamics within a constant depth interval in oligotrophic lakes

Population structure and dynamics within a constant depth interval in oligotrophic lakes ; The ecology of Lobelia dortmanna

Szmeja, Józef

Polska Akademia Nauk. Instytut Ekologii

Polish Scientific Publishers

Warszawa

1987

Pages 523-544 : illustrations ; 24 cm ; Bibliographical references (pages 543-544) ; Abstract in Polish

Journal/Article

Lobelia dortmanna ; isoetid ; population structure ; population demography ; phytocoenose-biotope conditions ; oligotrophic lakes

The subject of the study was Lobelia dortmanna population structure under various biotope and phytocoenose conditions of the same phytolittoral depth range (0.8-1.0 m) in two lakes in northern Poland. L dortmanna populations were a priori subdivided into 9 smaller comparative units (subpopulations) on the basis of the following criteria: homogeneity of the biochore (i.e., area occupied by a phytocoenose) and the same plant community type. Within the subpopulations the following were determined: (1) density, (2) spatial organization, (3) age distribution, (4) proportion of seeds and vegetative diaspores. The method used was microscale underwater charting. The study was carried out in the period 1980-1984.

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