R
Ralf Ohlemüller
Researcher at University of Otago
Publications - 35
Citations - 8382
Ralf Ohlemüller is an academic researcher from University of Otago. The author has contributed to research in topics: Climate change & Biodiversity. The author has an hindex of 16, co-authored 33 publications receiving 7185 citations. Previous affiliations of Ralf Ohlemüller include Durham University.
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Journal ArticleDOI
Rapid Range Shifts of Species Associated with High Levels of Climate Warming
TL;DR: A meta-analysis shows that species are shifting their distributions in response to climate change at an accelerating rate, and that the range shift of each species depends on multiple internal species traits and external drivers of change.
Journal ArticleDOI
Methods to account for spatial autocorrelation in the analysis of species distributional data : a review
Carsten F. Dormann,Jana M. McPherson,Miguel B. Araújo,Roger Bivand,Janine Bolliger,Gudrun Carl,Richard G. Davies,Alexandre H. Hirzel,Walter Jetz,W. Daniel Kissling,Ingolf Kühn,Ralf Ohlemüller,Pedro R. Peres-Neto,Björn Reineking,Boris Schröder,Frank M. Schurr,Robert J. Wilson +16 more
TL;DR: In this paper, the authors describe six different statistical approaches to infer correlates of species distributions, for both presence/absence (binary response) and species abundance data (poisson or normally distributed response), while accounting for spatial autocorrelation in model residuals: autocovariate regression; spatial eigenvector mapping; generalised least squares; (conditional and simultaneous) autoregressive models and generalised estimating equations.
Journal ArticleDOI
The coincidence of climatic and species rarity: high risk to small-range species from climate change
Ralf Ohlemüller,Barbara J. Anderson,Miguel B. Araújo,Stuart H. M. Butchart,Otakar Kudrna,Robert S. Ridgely,Chris D. Thomas +6 more
TL;DR: It is suggested that the centres of high small-range species richness the authors examined predominantly represent interglacial relict areas where cold-adapted species have been able to survive unusually warm periods in the last ca 10 000 years.
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Multiple stressors on biotic interactions: how climate change and alien species interact to affect pollination
Oliver Schweiger,Jacobus C. Biesmeijer,Riccardo Bommarco,Thomas Hickler,Philip E. Hulme,Stefan Klotz,Ingolf Kühn,Mari Moora,Anders Nielsen,Ralf Ohlemüller,Theodora Petanidou,Simon G. Potts,Petr Pyšek,Jane C. Stout,Martin T. Sykes,Thomas Tscheulin,Montserrat Vilà,Gian-Reto Walther,Catrin Westphal,Catrin Westphal,Marten Winter,Marten Winter,Martin Zobel,Josef Settele +23 more
TL;DR: It is found that both climate change and alien species will ultimately lead to the creation of novel communities, and certain interactions may no longer occur while there will also be potential for the emergence of new relationships.
Journal ArticleDOI
A global comparative analysis of elevational species richness patterns of ferns
TL;DR: In this paper, the authors compared fern species richness along 20 elevational transects to quantify the relative contribution of climate and mid-domain effect (MDE) as drivers of elevational richness patterns.