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
An ecological economic simulation model of a non-selective grazing system in the Nama Karoo, South Africa
TL;DR: In this article, the authors model a farming system, which attempts to create an environmental buffer of forage reserves by restricting access of livestock within numerous small camps, using a multi-camp infrastructure, which forces the livestock to remove non-selectively most of the available forage within a camp.
Journal ArticleDOI
Is there a temporal niche separation in the leaf phenology of savanna trees and grasses
Steven I. Higgins,Maria D. Delgado-Cartay,Edmund C. February,Hendrik J. Combrink,Hendrik J. Combrink +4 more
TL;DR: It is shown that grasses and trees have different leaf deployment strategies, and leaf flush in the tree strategies appears to pre-empt rainfall, whereas grass leaf flush follows the rain.
Book ChapterDOI
Plant Species Migration as a Key Uncertainty in Predicting Future Impacts of Climate Change on Ecosystems: Progress and Challenges
TL;DR: In this article, a failure to incorporate migration limitations into models of vegetation response to climate change greatly compromises their predictive capability, and the uncertainty due to migration is therefore substantial, as shown in Figure 1.
Journal ArticleDOI
Sustainable management of extensively managed savanna rangelands
TL;DR: In this paper, the authors developed a simulation model of a savanna rangeland to identify optimal, sustainable strategies for the management of extensive rangelands, and optimised the utility of agents who are motivated by economic, production or ecological factors under both deterministic and stochastic conditions.
Journal ArticleDOI
Which traits determine shifts in the abundance of tree species in a fire‐prone savanna?
Steven I. Higgins,William J. Bond,Henri Combrink,Henri Combrink,Joseph M. Craine,Edmund C. February,Navashni Govender,Kathryn S. M. Lannas,Glenn R. Moncreiff,W.S.W. Trollope +9 more
TL;DR: It is found that species differ in their topkill responses (probability of above-ground mortality) and that these differences are explained in part by differences in bark moisture content and the allometry between height and diameter.