نتایج جستجو برای: alpine garden plants

تعداد نتایج: 216963  

Journal: :Genetics and molecular research : GMR 2015
N A A Aziz M I Ahmad D M Naim

Plants have been used throughout human history for food and medicine. However, many plants are toxic, and cannot easily be morphologically distinguished from non-toxic plants. DNA identification solves this problem and is widely used. Nonetheless, plant DNA barcode identification faces a number of challenges, and many studies have been conducted to find suitable barcodes. The present study was ...

Journal: :Ecology letters 2018
Bernhard Kirchheimer Johannes Wessely Andreas Gattringer Karl Hülber Dietmar Moser Christoph C F Schinkel Marc Appelhans Simone Klatt Marco Caccianiga Agnes Dellinger Antoine Guisan Michael Kuttner Jonathan Lenoir Luigi Maiorano Diego Nieto-Lugilde Christoph Plutzar Jens-Christian Svenning Wolfgang Willner Elvira Hörandl Stefan Dullinger

Asexual taxa often have larger ranges than their sexual progenitors, particularly in areas affected by Pleistocene glaciations. The reasons given for this 'geographical parthenogenesis' are contentious, with expansion of the ecological niche or colonisation advantages of uniparental reproduction assumed most important in case of plants. Here, we parameterized a spread model for the alpine butte...

Journal: :Applied and environmental microbiology 2004
David A Lipson Steven K Schmidt

The period when the snowpack melts in late spring is a dynamic time for alpine ecosystems. The large winter microbial community begins to turn over rapidly, releasing nutrients to plants. Past studies have shown that the soil microbial community in alpine dry meadows of the Colorado Rocky Mountains changes in biomass, function, broad-level structure, and fungal diversity between winter and earl...

Journal: :Evolution; international journal of organic evolution 2012
Florian C Boucher Wilfried Thuiller Cristina Roquet Rolland Douzet Serge Aubert Nadir Alvarez Sébastien Lavergne

Relatively, few species have been able to colonize extremely cold alpine environments. We investigate the role played by the cushion life form in the evolution of climatic niches in the plant genus Androsace s.l., which spreads across the mountain ranges of the Northern Hemisphere. Using robust methods that account for phylogenetic uncertainty, intraspecific variability of climatic requirements...

2017
Christina Alba Julienne E NeSmith Catherine Fahey Christine Angelini Stephen Luke Flory

Abiotic global change drivers affect ecosystem structure and function, but how they interact with biotic factors such as invasive plants is understudied. Such interactions may be additive, synergistic, or offsetting, and difficult to predict. We present methods to test the individual and interactive effects of drought and plant invasion on native ecosystems. We coupled a factorial common garden...

2015
Craig R. Yendrek Robert P. Koester Elizabeth A. Ainsworth

Current concentrations of tropospheric ozone ([O3]) pollution negatively impact plant metabolism, which can result in decreased crop yields. Interspecific variation in the physiological response of plants to elevated [O3] exists; however, the underlying cellular responses explaining species-specific differences are largely unknown. Here, a physiological screen has been performed on multiple var...

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