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Variation in life-cycle between three rare and endangered floodplain violets in two regions: implications for population viability and conservation
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SYSNO ASEP 0327040 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Variation in life-cycle between three rare and endangered floodplain violets in two regions: implications for population viability and conservation Title Rozdíly mezi životními cykly tří vzácných a ohrožených violek nivních stanovišť dvou oblastí: význam pro životaschopnost populací a jejich ochranu Author(s) Eckstein, R. L. (DE)
Danihelka, Jiří (BU-J) RID, ORCID
Otte, A. (DE)Number of authors 3 Source Title Biologia. - : Springer - ISSN 0006-3088
Roč. 64, č. 1 (2009), s. 69-80Number of pages 12 s. Language eng - English Country SK - Slovakia Keywords Viola elatior ; Viola pumila ; Viola stagnina Subject RIV EF - Botanics R&D Projects LC06073 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) CEZ AV0Z60050516 - BU-J (2005-2011) UT WOS 000262965900009 DOI 10.2478/s11756-009-0002-1 Annotation We studied the demography of Viola elatior, V. pumila, and V. stagnina, three rare and endangered Central European floodplain species, to (i) analyse variation in life-cycles among congeners and between regions (Dyje-Morava floodplains, Czech Republic; Upper Rhine, Germany), (ii) to define sensitive stages in the life-cycles, and (iii) to identify possible threats for population viability and species conservation. Matrix models were based on the fate of marked individuals from a total of 27 populations over two years. We analysed population growth rate (λ), stage distribution, net reproductive rate (R0), generation time, age at first reproduction, and elasticity and calculated a life table response experiment (LTRE). Most populations were declining and λ did not differ between species or regions during the observed interval. Despite higher probabilities for survival and flowering in the Dyje populations, R0 was higher in the Rhine populations. Workplace Institute of Botany Contact Martina Bartošová, martina.bartosova@ibot.cas.cz, ibot@ibot.cas.cz, Tel.: 271 015 242 ; Marie Jakšová, marie.jaksova@ibot.cas.cz, Tel.: 384 721 156-8 Year of Publishing 2010
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