Figure 1.
Localization of Eastern Arc biodiversity hotspot along the Indian Ocean.
This hotspot is a chain of 13 mountain coastal blocks indicated with red symbols. A = Eastern Arc within Africa; B = Detail of the countries harbouring the hotspot; KE = Kenya; TZ = Tanzania; MOZ = Mozambique.
Figure 2.
Pattern of extinction risk in Tanzania based on the subset of the country's flora that has been red-listed.
DD = Data Deficient; LC = Least Concerned; LC-CD = Lower Risk/Conservation Dependant; NT = Near Threatened; VU = Vulnerable; EN = Endangered; CR = Critically Endangered; EX = Extinct.
Figure 3.
Taxonomic distribution of extinction risk.
A) Patterns within red-listed flora of Tanzania; B) Patterns within Eastern Arc. Proportion of threatened was assessed as number of threatened species in a family divided by the total number of species assessed within that family. Families with higher than expected proportions of threatened species are shown in red, and families with significantly lower proportions of threatened species are shown in blue. The dashed line represents the mean proportion of threatened species across all families.
Table 1.
Diversity and phylogenetic relatedness of Eastern Arc plants within IUCN Red List categories.
Table 2.
Comparison of evolutionary models of extinction risk using various tree transformations.
Table 3.
Predicting species richness of threatened species (SRthreat).