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| Fajakkumulációs görbe× | Faith-féle filogenetikai sokféleség× | |
|---|---|---|
| Tudományterület | Ökológia | Ökológia |
| Módszercsalád | Process / pipeline | Process / pipeline |
| Keletkezés éve≠ | 1968 | 1992 |
| Megalkotó≠ | Henry Sanders | David Faith |
| Típus≠ | biodiversity quantification and comparison | evolutionary diversity quantification |
| Alapmű≠ | Colwell, R. K. (1994). Estimating terrestrial biodiversity through extrapolation. Philosophical Transactions of the Royal Society B, 345(1311), 101-118. DOI ↗ | Faith, D. P. (1992). Conservation evaluation and phylogenetic diversity. Biological Conservation, 61(1), 1-10. DOI ↗ |
| Alternatív nevek≠ | rarefaction, species accumulation curve, species richness curve | phylogenetic diversity, PD, evolutionary distinctiveness, branch length |
| Kapcsolódó | 4 | 4 |
| Összefoglaló≠ | Species accumulation curves describe how the number of observed species increases with cumulative sampling effort. Introduced by Sanders (1968) and developed by Colwell and colleagues, this method enables ecologists to compare biodiversity across sites and estimate total species richness despite incomplete sampling. It addresses a fundamental challenge in ecology: observed species counts are biased by sampling intensity. | Faith's Phylogenetic Diversity (PD), introduced by David Faith (1992), measures the evolutionary diversity within a community by summing the branch lengths of a phylogenetic tree connecting all species. Unlike species richness, which counts species equally regardless of evolutionary relationships, PD weights species by their evolutionary distinctiveness: a community with evolutionarily distant species has higher PD than one dominated by recently diverged species. PD is widely used in conservation to prioritize protection of species and habitats that preserve evolutionary history. |
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