Search Results - "Retzer, Vroni"

Effects of large herbivore exclusion on southern Mongolian desert steppes by Wesche, Karsten, Ronnenberg, Katrin, Retzer, Vroni, Miehe, Georg

“…Large areas of Mongolia have been subject to semi-nomadic pastoralism for centuries, but recently increasing livestock numbers have raised concerns about…”
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Impact of Grazing Livestock and Distance from Water Source on Soil Fertility in Southern Mongolia by Stumpp, Markus, Wesche, Karsten, Retzer, Vroni, Miehe, Georg

“…The impact of livestock grazing on soil nutrients and vegetation parameters was studied in dry montane steppes of southern Mongolia in order to assess the risk…”
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Winter warming pulses affect the development of planted temperate grassland and dwarf-shrub heath communities by Kreyling, Juergen, Jurasinski, Gerald, Grant, Kerstin, Retzer, Vroni, Jentsch, Anke, Beierkuhnlein, Carl

“…Background: Winter conditions are changing considerably due to climate change. Resulting alterations in the frequency of soil freeze–thaw cycles (FTCs) are…”
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Inventory, differentiation, and proportional diversity: a consistent terminology for quantifying species diversity by Jurasinski, Gerald, Retzer, Vroni, Beierkuhnlein, Carl

“…Almost half a century after Whittaker (Ecol Monogr 30:279-338, 1960) proposed his influential diversity concept, it is time for a critical reappraisal…”
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Long-term degradation of Sahelian rangeland detected by 27 years of field study in Senegal by Miehe, Sabine, Kluge, Jürgen, von Wehrden, Henrik, Retzer, Vroni

“…1. Sustainable management of rangelands will become increasingly important as the climate changes, yet rangeland dynamics are still a challenge to dryland…”
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Impacts of grazing and rainfall variability on the dynamics of a Sahelian rangeland revisited ( Hein, 2006)—new insights from old data by Retzer, Vroni

“…Understanding the dynamics of semi-arid rangelands is a prerequisite for their proper management and long-term enclosure experiments are an important tool to…”
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Forage competition between livestock and Mongolian Pika ( Ochotona pallasi) in Southern Mongolian mountain steppes by Retzer, Vroni

“…Nomadic pastoralism is the most suitable form of land use in the semi-arid grasslands of the world and from a pastoralist point of view wild herbivores are…”
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K. Danell R. Bergström P. Duncan J. Pastor Large Herbivore Ecology, Ecosystem Dynamics and Conservation, Conservation Biology Series 11 2006 Cambridge University Press Cambridge 978-0-521-53687-5 506pp., £38 by Retzer, Vroni

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Detecting spatial patterns in species composition with multiple plot similarity coefficients and singularity measures by Jurasinski, Gerald, Jentsch, Anke, Retzer, Vroni, Beierkuhnlein, Carl

“…Recently, several multiple plot similarity indices have been presented that cure some of the problems associated with the approaches for the calculation of…”
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Habitat engineering under dry conditions: The impact of pikas (Ochotona pallasi) on vegetation and site conditions in southern Mongolian steppes by Wesche, Karsten, Nadrowski, Karin, Retzer, Vroni

“…Question: Does ecosystem engineering by small mammals have a significant influence on vegetation patterns in the arid steppe vegetation of southern Mongolia?…”
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A systematic approach to relate plant-species diversity to land use diversity across landscapes by Jentsch, Anke, Steinbauer, Manuel Jonas, Alt, Martin, Retzer, Vroni, Buhk, Constanze, Beierkuhnlein, Carl

“…► The presented approach integrates advantages of regularly used sampling methodologies. ► It is able to cover a relationship of alpha and beta diversity with…”
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Towards objectivity in research evaluation using bibliometric indicators – A protocol for incorporating complexity by Retzer, Vroni, Jurasinski, Gerald

“…Publications are thought to be an integrative indicator best suited to measure the multifaceted nature of scientific performance. Therefore, indicators based…”
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Long-term degradation of Sahelian rangeland detected by 27 years of field study in Senegal: Long-term rangeland monitoring in the Sahel by Miehe, Sabine, Kluge, Jürgen, Von Wehrden, Henrik, Retzer, Vroni

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Historical Land Use Explains Current Distribution of Calcareous Grassland Species by Heubes, Jonathan, Retzer, Vroni, Schmidtlein, Sebastian, Beierkuhnlein, Carl

“…In this study we analyzed if characteristic calcareous grassland species persist in forest habitats after land use change. Furthermore, we investigated whether…”
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Habitat engineering under dry conditions: The impact of pikas (Ochotona pallasi) on vegetation and site conditions in southern Mongolian steppes by Wesche, Karsten, Nadrowski, Karin, Retzer, Vroni

“…Question: Does ecosystem engineering by small mammals have a significant influence on vegetation patterns in the arid steppe vegetation of southern Mongolia?…”
Get full text