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Impacts of shrub encroachment on ecosystem structure and functioning: towards a global synthesis.
TLDR
It was revealed that encroachment had mixed effects on ecosystem structure and functioning at global scales, and that shrub traits influence the functional outcome of encroachment.
Resource limitation is a driver of local adaptation in mycorrhizal symbioses
TLDR
Results indicate that Andropogon ecotypes adapt to their local soil and indigenous AM fungal communities such that mycorrhizal exchange of the most limiting resource is maximized.
Biological Soil Crust Rehabilitation in Theory and Practice: An Underexploited Opportunity
Biological soil crusts (BSCs) are ubiquitous lichen–bryophyte microbial communities, which are critical structural and functional components of many ecosystems. However, BSCs are rarely addressed in
Plant Species Richness and Ecosystem Multifunctionality in Global Drylands
TLDR
A global empirical study relating plant species richness and abiotic factors to multifunctionality in drylands, which collectively cover 41% of Earth’s land surface and support over 38% of the human population, suggests that the preservation of plant biodiversity is crucial to buffer negative effects of climate change and desertification in dryland.
Mortality Gradients within and among Dominant Plant Populations as Barometers of Ecosystem Change During Extreme Drought
TLDR
Investigation of patterns of mortality in six dominant plant species during a drought in the southwestern United States revealed three major patterns: dominant species from diverse habitat types exhibited significant mortality, indicating that the effects of drought were widespread, and all dominant species showed localized patterns of very high mortality consistent with water stress gradients.
Mycorrhizal phenotypes and the Law of the Minimum.
TLDR
Findings support the hypothesis that mutualism is most likely in P-limited systems and commensalism or parasitism is likely in N- limited systems.
Shrub encroachment can reverse desertification in semi-arid Mediterranean grasslands.
TLDR
Evaluating the effects of shrub encroachment on the structure and composition of multiple biotic community components, and on various indicators of ecosystem function in degraded Mediterranean grasslands suggests that shrub establishment may be an important step in the reversal of desertification processes in the Mediterranean region.
Decoupling of soil nutrient cycles as a function of aridity in global drylands
TLDR
Any predicted increase in aridity with climate change will probably reduce the concentrations of N and C in global drylands, but increase that of P, suggesting the provision of key services provided by these ecosystems could be negatively affected.
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