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Spatial incongruence among hotspots and complementary areas of tree diversity in southern Africa

Published on Jul 1, 2015in Diversity and Distributions4.09
· DOI :10.1111/ddi.12290
Barnabas H. Daru13
Estimated H-index: 13
(UJ: University of Johannesburg),
Michelle van der Bank19
Estimated H-index: 19
(UJ: University of Johannesburg),
T. Jonathan Davies32
Estimated H-index: 32
(McGill University)
Abstract
Aim Biodiversity hotspots have important roles in conservation prioritisation, but efficient methods for selecting among them remain debated. Location Southern Africa. Methods In this study, we used data on the dated phylogeny and geographical distribution of 1400 tree species in southern Africa to map regional hotspots of species richness (SR), phylogenetic diversity (PD), phylogenetic endemism (PE), species endemism (CWE), and evolutionary distinctiveness and global endangerment (EDGE). In addition, we evaluated the efficiency of hotspots in capturing complementary areas of species richness and phylogenetic diversity. We examined the spatial overlap among hotspots for each metric, and review how well one metric may serve as a surrogate for others. We then evaluated the effectiveness of current conservation areas in capturing these different facets of diversity and complementary areas. Lastly, we explored the environmental factors influencing the distribution of these diversity metrics in southern Africa. Results We reveal large spatial incongruence between biodiversity indices, resulting in unequal representation of PD, SR, PE, CWE and EDGE in hotspots and currently protected areas. Notably, no hotspot area is shared among all five measures, and 69% of hotspot areas were unique to a single diversity metric. Areas selected using complementarity are even more dispersed, but capture rare diversity that is overlooked by the hotspot approach.
  • References (54)
  • Citations (24)
References54
Newest
#1Olivier Maurin (UJ: University of Johannesburg)H-Index: 17
#2T. Jonathan Davies (McGill University)H-Index: 32
Last.William J. Bond (UCT: University of Cape Town)H-Index: 68
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#1Renske M. Gudde (SFU: Simon Fraser University)H-Index: 1
#2Jeffrey B. Joy (SFU: Simon Fraser University)H-Index: 15
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#1Kamran Safi (MPG: Max Planck Society)H-Index: 29
#2Katrina Armour-Marshall (Imperial College London)H-Index: 2
Last.Nick J. B. Isaac (NERC: Natural Environment Research Council)H-Index: 35
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#1Carlos E. González-Orozco (CSIRO: Commonwealth Scientific and Industrial Research Organisation)H-Index: 14
#2A. H. D. Brown (CSIRO: Commonwealth Scientific and Industrial Research Organisation)H-Index: 51
Last.Jeff J. Doyle (Cornell University)H-Index: 66
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#1Patrícia Luz Ribeiro (UEFS: State University of Feira de Santana)H-Index: 7
#2Alessandro Rapini (UEFS: State University of Feira de Santana)H-Index: 12
Last.Cássio van den Berg (UEFS: State University of Feira de Santana)H-Index: 21
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#2Marc W. Cadotte (U of T: University of Toronto)H-Index: 41
Last.Tony RebeloH-Index: 3
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#1Catherine Linard (University of Oxford)H-Index: 22
#2Marius Gilbert (ULB: Université libre de Bruxelles)H-Index: 35
Last.Andrew J. Tatem (UF: University of Florida)H-Index: 63
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Cited By24
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#1Brody Sandel (Santa Clara University)H-Index: 3
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Last.Tiffany M. Knight (MLU: Martin Luther University of Halle-Wittenberg)H-Index: 35
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#1Barnabas H. Daru (A&M-CC: Texas A&M University–Corpus Christi)H-Index: 13
#2Barnabas H. Daru (A&M-CC: Texas A&M University–Corpus Christi)H-Index: 1
Last.Michelle Greve (University of Pretoria)H-Index: 11
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#1Barnabas H. Daru (A&M-CC: Texas A&M University–Corpus Christi)H-Index: 13
#2Barnabas H. Daru (A&M-CC: Texas A&M University–Corpus Christi)H-Index: 1
Last.A.E. van Wyk (University of Pretoria)H-Index: 21
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#1Camilo López-Aguirre (UNSW: University of New South Wales)H-Index: 2
#2Suzanne J. Hand (UNSW: University of New South Wales)H-Index: 24
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#1Yongjiu Cai (CAS: Chinese Academy of Sciences)H-Index: 12
#2Min Zhang (HAU: Huazhong Agricultural University)H-Index: 1
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#1Daniel Dutra Saraiva (UFRGS: Universidade Federal do Rio Grande do Sul)H-Index: 3
#2Anita Stival dos Santos (UFRGS: Universidade Federal do Rio Grande do Sul)H-Index: 1
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#1Barnabas H. Daru (University of Pretoria)H-Index: 13
#2Michelle van der Bank (UJ: University of Johannesburg)H-Index: 19
Last.T. Jonathan Davies (McGill University)H-Index: 12
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