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Models and estimators linking individual-based and sample-based rarefaction, extrapolation and comparison of assemblages
Aims In ecology and conservation biology, the number of species counted in a biodiversity study is a key metric but is usually a biased underestimate of total species richness because many rareExpand
A new statistical approach for assessing similarity of species composition with incidence and abundance data
This work provides a probabilistic derivation for the classic, incidence-based forms of Jaccard and Sorensen indices of compositional similarity and proposes estimators for these indices that include the effect of unseen shared species, based on either (replicated) incidence- or abundancebased sample data. Expand
Statistical methods for estimating species richness of woody regeneration in primary and secondary rain forests of northeastern Costa Rica
The study of plant communities requires a basic understanding of the abundance, distribution, and number of species present. Yet, in obtaining this information, scientists can rarely sample theExpand
Tropical forest recovery: legacies of human impact and natural disturbances
Despite evidence of rapid forest recovery following large-scale deforestation, many degraded areas of today’s tropics will require human assistance to recover forest structure, species composition, and species interactions typical of mature tropical forests. Expand
Beyond Deforestation: Restoring Forests and Ecosystem Services on Degraded Lands
  • R. Chazdon
  • Environmental Science, Medicine
  • Science
  • 13 June 2008
Despite continued forest conversion and degradation, forest cover is increasing in countries across the globe, and opportunities abound to combine ambitious forest restoration and regeneration goals with sustainable rural livelihoods and community participation. Expand
Estimation of tropical forest structural characteristics using large-footprint lidar
Quantification of forest structure is important for developing a better understanding of how forest ecosystems function. Additionally, estimation of forest structural attributes, such as abovegroundExpand
Second growth : the promise of tropical forest regeneration in an age of deforestation
For decades, conservation and research initiatives in tropical forests have focused almost exclusively on old-growth forests because scientists believed that these pristiner ecosystems housedExpand
Prospects for tropical forest biodiversity in a human-modified world.
A critical synthesis of the scientific insights that guide the understanding of patterns and processes underpinning forest biodiversity in the human-modified tropics are provided, and a conceptual framework that integrates a broad range of social and ecological factors that define and contextualize the possible future of tropical forest species is presented. Expand
Rates of change in tree communities of secondary Neotropical forests following major disturbances
Stem turnover rates were poor predictors of species turnover rates, particularly at longer time-intervals, and dynamic changes in basal area within stands, on the other hand, generally followed chronosequence trends. Expand
Abundance-based similarity indices and their estimation when there are unseen species in samples.
This work provides a new probabilistic derivation for any incidence-based index that is symmetric and homogeneous and proposes estimators that adjust for the effect of unseen shared species on the authors' abundance-based indices. Expand