Cascading biodiversity and functional consequences of a global change–induced biome switch

@article{Parr2012CascadingBA,
  title={Cascading biodiversity and functional consequences of a global change–induced biome switch},
  author={Catherine L. Parr and Emma Gray and William J. Bond},
  journal={Diversity and Distributions},
  year={2012},
  volume={18}
}
Aim  At a regional scale, across southern Africa, woody thickening of savannas is becoming increasingly widespread. Using coupled vegetation and faunal responses (ants), we explore whether major changes in woody cover in savannas represent an increase in the density of savanna trees (C4 grass layer remains intact) or a ‘regime shift’ in system state from savanna to thicket (=dry forest) where broad‐leaved, forest‐associated trees shade out C4 grasses. 

Legacy effects of top–down disturbances on woody plant species composition in semi-arid systems

Savanna vegetation is controlled by bottom-up (e.g. soil and rainfall) and top–down (e.g. fire and herbivory) factors, all of which have an effect on biodiversity. Little is known about the relative

Savanna woody encroachment is widespread across three continents

It is argued that the functional traits of each woody flora, specifically the N-fixing ability and architecture of woody plants, are critical to predicting encroachment over the next century and that African savannas are at high risk of widespread vegetation change.

Plant functional groups and species contribute to ecological resilience a decade after woodland expansion treatments

Woody plant expansions are altering ecosystem structure and function, as well as fire regimes, around the globe. Tree-reduction treatments are widely implemented in expanding woodlands to reduce fuel

Quantifying Woody Plant Encroachment in Grasslands: A Review on Remote Sensing Approaches

Abstract Grasslands are an important global ecosystem, providing essential ecological and economic ecosystem services. Over the last couple decades, as a result of climate change and human

Fire refugia facilitate forest and savanna co‐existence as alternative stable states

Does complex topography facilitate the establishment and persistence of fire‐sensitive (forest) vegetation in a fire‐prone landscape? We test the prediction that fire‐sensitive vegetation will

Woody encroachment slows decomposition and termite activity in an African savanna

The first quantification of woody encroachment altering the functioning of African savanna ecosystems through the slowing of aboveground plant decomposition is provided, suggesting that substantial changes to the carbon balance and biodiversity of grassy biomes could occur.

Woody plant encroachment intensifies under climate change across tundra and savanna biomes

Biomes worldwide are shifting under global change. Biomes whose extents are limited by temperature or precipitation, such as the tundra and savanna, may be particularly strongly affected by climate
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