Author:Madonsela, Sabelo; Cho, Moses A; Ramoelo, Abel; Mutanga, ODate:Jun 2021The emergence of the spectral variation hypothesis (SVH) has gained widespread attention in the remote sensing community as a method for deriving biodiversity information from remotely sensed data. SVH states that spectral heterogeneity on ...Read more
Author:Steenkamp, Karen C; Wessels, Konrad J; Archibald, S; Von Maltitz, Graham PDate:Nov 2008Satellite-derived phenology allows monitoring of terrestrial vegetation on a global scale and provides an integrative view at the landscape level. Understanding these seasonal phenological patterns is essential to (i) the characterisation and ...Read more
Author:Davis, CL; Hoffman, MT; Roberts, WDate:Jul 2017Vegetation monitoring of arid and semi-arid environments using remotely sensed vegetation indices over long periods of time is essential to improve the understanding of the processes related to change. In this paper, 30 years of biweekly AVHRR ...Read more
Author:Scogings, PF; Hjalten, J; Skarpe, C; Hattas, D; Zobolo, A; Dziba, L; Rooke, TDate:Jan 2014Carbon-based secondary metabolites (CBSMs) such as tannins are assumed to function as plant defences against herbivores. CBSMs are thought to be inversely related to growth rate and nutrient concentrations because a physiological trade-off ...Read more
Author:Wessels, Konrad J; Steenkamp, Karen C; Von Maltitz, Graham P; Archibald, SDate:Feb 2011What are the patterns of remotely sensed vegetation phenology, including their inter-annual variability, across South Africa? What are the phenological attributes that contribute most to distinguishing the different biomes? How well can the ...Read more
Author:Scogings, PF; Hattas, D; Skarpe, C; Hjältén, J; Dziba, L; Zobolo, A; Rooke, TDate:Mar 2015Semi-arid savannas are characterised by alternating wet and dry seasons and large inter-annual rainfall fluctuations that affect plant growth. Carbon-based secondary metabolites (CBSMs) vary inversely with growth and nutrients because of the ...Read more