Long-term population changes in the Giant Quiver Tree, Aloe pillansii in the Richtersveld, South Africa

With probably fewer than 3000 individuals alive in the biodiversity hotspot of the Succulent Karoo in southern Africa, populations of the endemic, Giant Quiver Tree, Aloe pillansii, are thought to be declining and thus threatened with extinction. Using repeat photography and field data we investigat...

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