S
Steven I. Higgins
Researcher at University of Bayreuth
Publications - 126
Citations - 15473
Steven I. Higgins is an academic researcher from University of Bayreuth. The author has contributed to research in topics: Vegetation & Biome. The author has an hindex of 55, co-authored 121 publications receiving 13944 citations. Previous affiliations of Steven I. Higgins include University of the Witwatersrand & Helmholtz Centre for Environmental Research - UFZ.
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Journal ArticleDOI
A niche for biology in species distribution models
TL;DR: This special issue examines the current state of the art in species distribution modelling and explores avenues for including more biological processes in such models, focusing on physiological, demographic, dispersal, competitive and ecological‐modulation processes.
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Tree allometries reflect a lifetime of herbivory in an African savanna
Glenn R. Moncrieff,Simon Chamaillé-Jammes,Steven I. Higgins,Robert B. O'Hara,William J. Bond +4 more
TL;DR: It is shown that herbivores modify tree allometry and that the pattern of allometric modification contains information regarding herbivore foraging behavior and the resultant alteration of plant architecture.
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Tree distribution on a steep environmental gradient in an arid savanna
TL;DR: In this article, the authors examined the relationship between water availability and tree growth across a steep moisture gradient in a sub-tropical savanna, and found that trees growing close to the stream have lower water stress and higher cumulative growth than those growing away from the stream.
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Water sourcing by trees in a mesic savanna: Responses to severing deep and shallow roots
TL;DR: It is shown that saplings of the common and locally dominant savanna tree T. sericea manage to coexist with grasses without avoiding competition through spatial root separation, and the two-layer hypothesis for explaining tree–grass coexistence in this mesic savanna is not supported.
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Potential impact of large ungulate grazers on African vegetation, carbon storage and fire regimes
TL;DR: In this paper, the potential impacts of grazing on grass biomass, competition between grasses and trees, the occurrence and effects of wildfire and biome distribution were simulated with a model that couples a physiological grazer population model with a physiological dynamic vegetation one (not including the effects of browsing).