Results 61 to 70 of about 1,188,588 (171)
Environmental Research Letters, 2014 Widespread increases in Arctic tundra productivity have been documented for decades using coarse-scale satellite observations, but finer-scale observations indicate that changes have been very uneven, with a high degree of landscape- and regional-scale ...
Gerald V Frost +2 more
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On the influence of shrub height and expansion on northern high latitude climate
Environmental Research Letters, 2012 There is a growing body of empirical evidence documenting the expansion of shrub vegetation in the circumpolar Arctic in response to climate change. Here, we conduct a series of idealized experiments with the Community Climate System Model to analyze the potential impact on boreal climate of a large-scale tundra-to-shrub conversion.
C J W Bonfils +5 more
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Cracking the niche: An investigation into the impact of climatic variables on germination of the rare shrub Verticordia staminosa subspecies staminosa (Myrtaceae) [PDF]
, 2011 The influence of annual rainfall and a Mediterranean climate in structuring the indigenous vegetation in the Southwest Botanical Province of Western Australia has long been recognised, especially in relation to seedling germination during the cooler wet ...
Simpson, Gregory
core
Characterizing and Modeling Arctic Shrub Expansion on the North Slope of Alaska, USA [PDF]
, 2015 Shrub expansion is one of the most recognized components of terrestrial Arctic change and has been documented in studies involving fine-scale experimental manipulations or broad-scale satellite remote sensing.
Naito, Adam Takashi
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Recent dynamics of arctic and sub-arctic vegetation
Environmental Research Letters, 2013 We present a focus issue of Environmental Research Letters on the ‘Recent dynamics of arctic and sub-arctic vegetation’. The focus issue includes three perspective articles (Verbyla 2011 Environ. Res. Lett. 6 041003, Williams et al 2011 Environ.
Howard E Epstein +2 more
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Shrub expansion may reduce summer permafrost thaw in Siberian tundra [PDF]
Global Change Biology, 2010 AbstractClimate change is expected to cause extensive vegetation changes in the Arctic: deciduous shrubs are already expanding, in response to climate warming. The results from transect studies suggest that increasing shrub cover will impact significantly on the surface energy balance. However, little is known about the direct effects of shrub cover on
Blok, D. +5 more
openaire +2 more sources
Environmental Research Letters, 2012 Deciduous shrub growth has increased across the Arctic simultaneously with recent climate warming trends. The reduction in albedo associated with shrub-induced ‘greening’ of the tundra is predicted to cause significant positive feedbacks to regional ...
Tara J Zamin, Paul Grogan
doaj +1 more source
International Journal of Applied Earth Observations and GeoinformationShrub encroaching on grasslands threatens grassland ecosystems and negatively affects human land use and livelihood. However, existing research on this subject is limited, having focused on small areas, thus hindering a comprehensive understanding of the
Xiaoqing Lv +6 more
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Shrub encroachment creates a dynamic landscape of fear for desert lagomorphs via multiple pathways
Ecosphere, 2020 Shrub encroachment is transforming arid and semiarid grasslands worldwide. Such transitions should influence predator–prey interactions because vegetation cover often affects risk perception by prey and contributes to their landscape of fear. We examined
Casey J. Wagnon +2 more
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Environmental Research: EcologyThe unprecedented rate of warming in the Arctic is driving changes in the structure and composition of tundra vegetation. Increases in deciduous tall shrub cover, height, and density are of particular concern, as these changes alter local surface albedo ...
Ian N C Shuman +4 more
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