Comparing the differential effects of canopy shading by Dichrostachys cinerea and Terminalia sericea on grass biomass.
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TLDR
Comparing the effects of two structurally different encroaching species (a shrub vs a tree) (Dichrostachys cinerea and Terminalia sericea) on grass biomass shows that encroachment of D.cinerea holds the potential to cause a regime shift from an open system to a closed system as a result of its extensive canopy cover.About:
This article is published in South African Journal of Botany.The article was published on 2018-11-01 and is currently open access. It has received 14 citations till now. The article focuses on the topics: Terminalia sericea & Shrub.read more
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Grass species richness decreases along a woody plant encroachment gradient in a semi-arid savanna grassland, South Africa
TL;DR: In this article, the effect of increasing tree density on grass species richness, evenness, diversity and assessed how nutrients change along an encroachment gradient of a shallow plinthic savanna soil.
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One savanna, many shapes: How bush control affects the woody layer in the southern Kalahari
TL;DR: In this article, different types and intensities of bush control (BC) are applied to counteract and mitigate bush thickening in southern African savannas, and the results suggest varying degrees of ecosystem functional integrity following the BC treatments.
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Woody encroachment happens via intensification, not extensification, of species ranges in an African savanna.
Yong Zhou,Morgan W. Tingley,Madelon F. Case,Madelon F. Case,Corli Coetsee,Corli Coetsee,Gregory A. Kiker,Gregory A. Kiker,Rheinhardt Scholtz,Freek J. Venter,A. Carla Staver +10 more
TL;DR: In this article, the authors examined species-level changes in woody plant distributions and size structure from the late 1980s to the late 2000s based on spatially intensive ground-based surveys across Kruger National Park, South Africa.
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Effect of tree canopy on herbaceous vegetation and soil characteristics in semi-arid forests of the Aravalli hills
TL;DR: In this article, the variation in herbaceous species composition, bio-biological composition, and bio-economic effects of herbaceous vegetation is investigated, and the authors aim to understand the variation of species composition.
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Woody encroachment of an East‐African savannah ecosystem alters its arbuscular mycorrhizal fungal communities
Yonas Ugo Utaile,Yonas Ugo Utaile,Maarten Van Geel,Bart Muys,Simon Shibru Cheche,Kenny Helsen,Olivier Honnay +6 more
TL;DR: The aim of the study was to explore whether the encroachment of an East-African savannah ecosystem by the invasive shrub Dichrostachys cinerea has resulted in changes in the Arbuscular Mycorrhizal Fungus communities which are associated with roots of the extant herbaceous plant communities.
References
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Tree-grass interactions in Savannas
TL;DR: Understanding of the widely observed increase in tree biomass following introduction of commercial ranching into savannas requires inclusion of interactions among browsers, grazers, and fires, and their effects on tree recruitment.
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Multimodel inference in ecology and evolution: challenges and solutions
TL;DR: A number of practical obstacles to model averaging complex models are highlighted and it is hoped that this approach will become more accessible to those investigating any process where multiple variables impact an evolutionary or ecological response.
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Positive interactions among plants
TL;DR: The evidence for facilitation, the mechanisms by which facilitation operates, and the effects facilitation has on community structure are reviewed.
Book
Trees of Southern Africa
TL;DR: Aimed at layman and botanist alike, this handbook presents all the trees in southern Africa in one volume.
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Impacts of shrub encroachment on ecosystem structure and functioning: towards a global synthesis
David J. Eldridge,Matthew A. Bowker,Fernando T. Maestre,Erin Roger,James F. Reynolds,Walter G. Whitford +5 more
TL;DR: 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.