Abstract
AbstractAimTo define biome‐scale hotspots of phylogenetic and functional mammalian biodiversity (PDandFD, respectively) and compare them with ‘classical’ hotspots based on species richness (SR) alone.LocationGlobal.MethodsSR,PDandFDwere computed for 782 terrestrial ecoregions using the distribution ranges of 4616 mammalian species. We used a set of comprehensive diversity indices unified by a recent framework incorporating the relative species coverage in each ecoregion. We built large‐scale multifaceted diversity–area relationships to rank ecoregions according to their levels of biodiversity while accounting for the effect of area on each facet of diversity. Finally we defined hotspots as the top‐ranked ecoregions.ResultsWhile ignoring relative species coverage led to a fairly good congruence between biome‐scale top rankedSR,PDandFDhotspots, ecoregions harbouring a rich and abundantly represented evolutionary history and FD did not match with the top‐ranked ecoregions defined bySR. More importantlyPDandFDhotspots showed important spatial mismatches. We also found thatFDandPDgenerally reached their maximum values faster thanSRas a function of area.Main conclusionsThe fact thatPD/FDreach their maximum value faster thanSRcould suggest that the two former facets might be less vulnerable to habitat loss than the latter. While this point is expected, it is the first time that it has been quantified at a global scale and should have important consequences for conservation. Incorporating relative species coverage into the delineation of multifaceted hotspots of diversity led to weak congruence betweenSR,PDandFDhotspots. This means that maximizing species number may fail to preserve those nodes (in the phylogenetic or functional tree) that are relatively abundant in the ecoregion. As a consequence it may be of prime importance to adopt a multifaceted biodiversity perspective to inform conservation strategies at a global scale.
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References
50
[2]
The delayed rise of present-day mammals

Olaf R. P. Bininda-Emonds, Marcel Cardillo, Kate E. Jones et al.

Nature 10.1038/nature05634
[10]
Conservation evaluation and phylogenetic diversity

Daniel P. Faith

Biological Conservation 10.1016/0006-3207(92)91201-3
[13]
[16]
Groves C. (2003)
[25]
[27]
Mittermeier R.A. (2004)
[37]
R Development Core Team (2010)
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Metrics
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Citations
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References
Details
Published
Mar 31, 2014
Vol/Issue
23(8)
Pages
836-847
License
View
Funding
European Research Council Award: 281422 (TEEMBIO)
Cite This Article
Florent Mazel, François Guilhaumon, Nicolas Mouquet, et al. (2014). Multifaceted diversity–area relationships reveal global hotspots of mammalian species, trait and lineage diversity. Global Ecology and Biogeography, 23(8), 836-847. https://doi.org/10.1111/geb.12158