Global forest loss disproportionately erodes biodiversity in intact landscapes. Anthropogenic disturbance in tropical forests can double biodiversity loss from deforestation. Hill numbers abundance data biodiversity extrapolation habitat modification habitat transformation incidence data mixture rarefaction.Д«arlow, J., Lennox, G.D., Ferreira, J., Berenguer, E., Lees, A.C., MacNally, R., et al. Our analytical and numerical analyses revealed that species unique to each habitat type are the most important determinants of landscape biodiversity patterns. the numbers of shared and unique species) for any mixture of the two habitat types. We also derive analytic formulas for assessing species composition (i.e. Given biodiversity data from two distinct habitat types, when a specified proportion of original habitat is transformed, our approach utilises a proportional mixture of two within-habitat rarefaction/extrapolation curves to analytically predict biodiversity changes, with bootstrap confidence intervals to assess sampling uncertainty. To quantify biodiversity patterns in such transformed landscapes, we use Hill numbers to analyse individual-based species abundance data or replicated, sample-based incidence data. Rarefaction/extrapolation approaches can quantify within-habitat biodiversity, but may not be useful for cases in which one habitat type is progressively transformed into another habitat type. Progressive habitat transformation causes global changes in landscape biodiversity patterns, but can be hard to quantify.

Analytic rarefaction