Extinction risk and diversification are linked in a plant biodiversity hotspot
2011

Plants and Extinction Risk

publication Evidence: moderate

Author Information

Author(s): T. J. Davies, G. F. Smith, D. U. Bellstedt, J. S. Boatwright, B. Bytebier

Hypothesis

Do the criteria for setting conservation priorities or assessing risk of extinction at the species level that have been developed for vertebrates really work for other taxonomic groups?

Conclusion

The study suggests that methods developed for assessing extinction risk in vertebrates may not be suitable for plants, highlighting the need for tailored conservation strategies.

Supporting Evidence

  • The study found that the taxa at risk are different in the Cape region compared to the United Kingdom.
  • Species richness and lineage age were linked to extinction risk in the Cape flora.
  • Rapid diversification in young lineages was associated with a higher proportion of threatened species.

Takeaway

This study looks at how plants might be at risk of extinction differently than animals, showing that we need to think carefully about how we protect them.

Methodology

The authors used a dataset for flowering plants that included a complete Red List assessment for all taxa from two regions and a complete phylogeny at the generic level of the Cape flora.

Potential Biases

The study may be biased towards the specific regions analyzed, which could affect the applicability of the results to other areas.

Limitations

The study's findings may not be generalizable to all plant species or regions due to the unique characteristics of the Cape flora.

Digital Object Identifier (DOI)

10.1371/journal.pbio.1000620

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