NDLI: Comparative Population Biology of Critically Endangered Dracocephalum austriacum (Lamiaceae) in Two Distant Regions

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Comparative Population Biology of Critically Endangered Dracocephalum austriacum (Lamiaceae) in Two Distant Regions

Content Provider	Springer Nature Link
Author	Dostálek, Tomáš Münzbergová, Zuzana
Copyright Year	2012
Abstract	Our study aims to compare the population dynamics of critically endangered species, Dracocephalum austriacum, in two distant regions (Czech and Slovak Karst) with similar habitat conditions, and to evaluate if conclusions concerning factors affecting population performance in one region could help in understanding species dynamics in the other region. Transition matrix models were used to examine population dynamics of the species. Results show that populations in the Slovak Karst are performing better than populations in the Czech Karst. The transitions contributing most to the population growth rates were those of stasis in the small and large adult plant stage. These transitions are, however, stable between populations and years, suggesting that they are not very sensitive to the ongoing changes. Transitions that contribute most to variations in population growth rate include seed and seedling production by large adult plants, seed germination and stasis and growth of small adult plants. These transitions seem to be affected by habitat conditions (soil depth and bare rock cover), genetic parameters of the populations, climate fluctuations (especially severe droughts), and shrub expansion. The transitions contributing most to the population growth rates are very similar between the regions except for contributions of seedling growth and stasis of large adults. These differences need to be considered before using information about the most important life cycle transitions in other regions. We suggest that similar results would be found for other species with narrow habitat requirements occupying very similar habitats, even in very distant regions.
Starting Page	75
Ending Page	93
Page Count	19
File Format	PDF
ISSN	12119520
Journal	Folia Geobotanica
Volume Number	48
Issue Number	1
e-ISSN	18749348
Language	English
Publisher	Springer Netherlands
Publisher Date	2012-07-24
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Elasticity Environmental variations Europe Genetic diversity Life table response experiments Population dynamics Rare species Plant Systematics/Taxonomy/Biogeography Plant Ecology Plant Sciences Life Sciences
Content Type	Text
Resource Type	Article
Subject	Plant Science Paleontology

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