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Browsing University of Hertfordshire by Author "Helm, Chantal"
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Characterising wide spatial variation in population size structure of a keystone African savanna tree
Helm, Chantal; Witkowski, Edward (2012)Elephant impact on trees is of conservation concern in African savannas, but it’s effect on population size structure of heavily utilised species has received little attention. Although studies have shown that the population ... -
Continuing decline of a keystone tree species in the Kruger National Park, South Africa
Helm, Chantal; Witkowski, Edward (2013-06)Sclerocarya birrea subsp. caffra (marula), a keystone large tree species in southern Africa and heavily utilized by people and herbivores, is declining at an unprecedented rate in the Kruger National Park (KNP), South ... -
Investigating the vulnerability of a keystone African savanna tree to fire and herbivory
Helm, Chantal (2013)