Jana Michaelis

Jana Michaelis
Universität Bremen | Uni Bremen · Institute of Ecology

Diplom Biologist

About

14
Publications
672
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54
Citations
Introduction
I am interested in species responses to various soil variables, especially in the context of the conservation of rare species. Doing my PhD I am currently trying to identify the most important edaphic parameters determining the regional distribution of species and explaining the outcome of plant reintroductions.

Publications

Publications (14)
Article
Full-text available
The interaction between plants, soils, and microbes has not received much attention in reintroduction efforts so far, although it is widely known that edaphic conditions play an essential role in local plant distribution. To analyze in how far adaption to natural soil conditions and the use of plant growth-promoting rhizobacteria (PGPR) influence r...
Article
Full-text available
The study aimed to examine the effects of different numbers of presences and frequencies (proportions) of occurrences of species in a plot data set of forest vegetation on the species response curves and their niche attributes, based on Huisman-Olff-Fresco models (HOF). We modeled responses of 72 to 105 herbaceous forest species along a pH gradient...
Data
Description for appendices S4 File and S5 File. (DOCX)
Data
Species data: Original data attributes and meta data of Pre:Fre scenarios. (XLSX)
Data
Vegetation data used for modelling. (XLSX)
Data
Figures of niche parameters that are not given in the article. (DOCX)
Data
Animation of HOF models with increasing presence numbers. (GIF)
Data
Comparison between AIC, AICc and BIC for model selection (DOCX)
Data
HOF model formulas and distribution of pH measurements along the gradient. (DOCX)
Data
Animation of HOF models with increasing frequency. (GIF)
Data
Literature survey. (XLSX)
Data
Results of (generalized) linear mixed models. (XLSX)
Article
Questions: Knowledge about the response curves of species along soil variable gradients is scarce. Because environmental change may force species to live closer to their ecological limits than optima, we examined and compared the importance of response limits, response optima and Ellenberg indicator values for soil pH to determine the regional rang...
Article
Species distribution modelling has largely focused on larger spatial scales and the significance of climatic variables for future species ranges. In this study, we argue that more attention should be paid to local processes and the responses of species along soil gradients, as habitat destruction and change in terms of an altered edaphic environmen...

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