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Title of Journal: Plant Ecol

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Abbravation: Plant Ecology

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Springer Netherlands

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DOI

10.1002/ppap.201600093

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ISSN

1573-5052

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Competitive responses of the rare Emphasis Type="

Authors: Mari Moora Ülle Jõgar
Publish Date: 2005/10/19
Volume: 184, Issue: 1, Pages: 105-110
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Abstract

Viola mirabilis is abundant in Estonia Viola elatior is rare We tested whether these species differ in their competitive responses to a common grass We used a pot experiment in which individuals of each violet species grew with 0 2 4 or 8 individuals of Festuca ovina in natural soil The response patterns of shoot and root mass and leaf numbers of the two species were similar the biomass and leaf number of both violet species decreased with increasing grass density The decrease of root mass of the rare V elatior was significantly greater and the decrease of leaf number tended to be greater than that of the common V␣mirabilis We conclude that the stronger competitive response of V elatior compared to V mirabilis might be one reason behind its lower regional and local abundance

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