Tree performance in a biodiversity enrichment experiment in an oil palm landscape

Large‐scale conversion of tropical forests into oil palm monocultures has led to dramatic losses of biodiversity and ecosystem functions. While ecological restoration is urgently needed in many oil palm landscapes, there is a lack of scientific knowledge of sustainable management strategies. We established experimental tree islands of varying sizes (25 m 2 to 1,600 m 2 ) and diversity levels (1, 2, 3 and 6 species) in an oil palm plantation in...