5 results match your criteria Alpine Botany[Journal]

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Addressing alpine plant phylogeography using integrative distributional, demographic and coalescent modeling.

Alp Bot 2022 29;132(1):5-19. Epub 2021 Jul 29.

Department of Botany and Biodiversity Research, University of Vienna, Vienna, Austria.

Phylogeographic studies of alpine plants have evolved considerably in the last two decades from ad hoc interpretations of genetic data to statistical model-based approaches. In this review we outline the developments in alpine plant phylogeography focusing on the recent approach of integrative distributional, demographic and coalescent (iDDC) modeling. By integrating distributional data with spatially explicit demographic modeling and subsequent coalescent simulations, the history of alpine species can be inferred and long-standing hypotheses, such as species-specific responses to climate change or survival on nunataks during the last glacial maximum, can be efficiently tested as exemplified by available case studies. Read More

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Endemics determine bioregionalization in the alpine zone of the Irano-Anatolian biodiversity hotspot (South-West Asia).

Alp Bot 2021 4;131(2):177-186. Epub 2021 Aug 4.

Department of Botany and Biodiversity Research, University of Vienna, Vienna, Austria.

Alpine habitats are characterized by a high rate of range restricted species compared to those of lower elevations. This is also the case for the Irano-Anatolian global biodiversity hotspot in South-West Asia, which is a mountainous area harbouring a high amount of endemic species. Using two quantitative approaches, Endemicity Analysis and Network-Clustering, we want to identify areas of concordant species distribution patterns in the alpine zone of this region as well as to test the hypothesis that, given the high proportion of endemics among alpine species, delimitation of these areas is determined mainly by endemic alpine species, i. Read More

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A bioclimatic characterization of high elevation habitats in the Alborz mountains of Iran.

Alp Bot 2018 6;128(1):1-11. Epub 2018 Feb 6.

2Institute of Botany, University of Basel, Schönbeinstrasse 6, 4056 Basel, Switzerland.

The Alborz mountains in N-Iran at 36° N rise from the Caspian Sea to 5671 m a.s.l. Read More

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February 2018

Working toward integrated models of alpine plant distribution.

Alp Bot 2013 Oct;123(2):41-53

Laboratoire d'Ecologie Alpine, UMR CNRS-UJF 5553, Univ. Grenoble Alpes, 38041 Grenoble, France; Station Alpine J. Fourier, UMS CNRS-UJF 3370, Univ. Grenoble Alpes, 38041 Grenoble, France.

Species distribution models (SDMs) have been frequently employed to forecast the response of alpine plants to global changes. Efforts to model alpine plant distribution have thus far been primarily based on a correlative approach, in which ecological processes are implicitly addressed through a statistical relationship between observed species occurrences and environmental predictors. Recent evidence, however, highlights the shortcomings of correlative SDMs, especially in alpine landscapes where plant species tend to be decoupled from atmospheric conditions in micro-topographic habitats and are particularly exposed to geomorphic disturbances. Read More

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October 2013

No evidence for a role of competitive capabilities of adults in causing habitat segregation of diploid and hexaploid (Asteracaeae).

Alp Bot 2011 Oct;121(2)

Department of Systematic and Evolutionary Botany, University of Vienna, Rennweg 14, 1030 Vienna, Austria.

Hexaploid individuals of (Asteraceae) predominantly occur in dense swards while diploids prevail in open vegetation. We test whether this habitat segregation is due to differential responses to competition. Linear regression models were used to relate biomass and maximum leaf length of adults to vegetation cover within radii of 20 cm around target individuals. Read More

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October 2011
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