Conservation Biogeography of the Sahara-Sahel: additional protected areas are needed to secure unique biodiversity

被引：42

作者：

Brito, Jose C. ^{[1
,2
]}

Tarroso, Pedro ^{[1
]}

Vale, Candida G. ^{[1
,2
]}

Martinez-Freiria, Fernando ^{[1
]}

Boratynski, Zbyszek ^{[1
]}

Campos, Joao C. ^{[1
,2
]}

Ferreira, Sonia ^{[1
,2
]}

Godinho, Raquel ^{[1
,2
]}

Goncalves, Duarte V. ^{[1
,2
]}

Leite, Joao V. ^{[1
]}

Lima, Vanessa O. ^{[1
]}

Pereira, Paulo ^{[1
]}

Santos, Xavier ^{[1
]}

Ferreira da Silva, Maria J. ^{[1
,3
,4
]}

Silva, Teresa L. ^{[1
,2
]}

Velo-Anton, Guillermo ^{[1
]}

Verissimo, Joana ^{[1
]}

Crochet, Pierre-Andre ^{[5
]}

Pleguezuelos, Juan M. ^{[6
]}

Carvalho, Silvia B. ^{[1
]}

机构：

[1] Univ Porto, CIBIO InBIO, Ctr Invest Biodiversidade & Recursos Genet, P-4485661 Vairao, Portugal

[2] Univ Porto, Dept Biol, Fac Ciencias, Rua Campo Alegre, P-4169007 Oporto, Portugal

[3] Cardiff Univ, Sch Biosci, ONE Organisms & Environm, Sir Martin Evans Bldg,Museum Ave, Cardiff CF10 3AX, Wales

[4] Univ Tecn Lisboa, CAPP, Sch Social & Polit Sci, Rua Almerindo Lessa, P-1300663 Lisbon, Portugal

[5] Ctr Ecol Fonct & Evolut, CNRS UMR 5175, 1919 Route Mende, F-35293 Montpellier 5, France

[6] Univ Granada, Dept Zool, Fac Ciencias, E-18071 Granada, Spain

来源：

DIVERSITY AND DISTRIBUTIONS | 2016年 / 22卷 / 04期

关键词：

Africa; biogeographical zones; conservation planning; desert diversity; environmental variation; gap analysis; SPECIES DISTRIBUTION; DICEROS-BICORNIS; GLOBAL PATTERNS; EVOLUTIONARY; DIVERSITY; RICHNESS; HOTSPOTS; DESERT; SCALE; ECOLOGY;

D O I：

10.1111/ddi.12416

中图分类号：

X176 [生物多样性保护];

学科分类号：

090705 ;

摘要：

AimIdentification of priority conservation areas and evaluation of coverage of the current protected areas are urgently needed to halt the biodiversity loss. Identifying regions combining similar environmental traits (climate regions) and species assemblages (biogroups) is needed for conserving the biodiversity patterns and processes. We identify climate regions and biogroups and map species diversity across the Sahara-Sahel, a large geographical area that exhibits wide environmental heterogeneity and multiple species groups with distinct biogeographical affinities, and evaluate the coverage level of current network of protected areas for biodiversity conservation. LocationSahara-Sahel, Africa. MethodsWe use spatially explicit climate data with the principal component analysis and model-based clustering techniques to identify climate regions. We use distributions of 1147 terrestrial vertebrates (and of 125 Sahara-Sahel endemics) and apply distance clustering methods to identify biogroups for both species groups. We apply reserve selection algorithms targeting 17% of species distribution, climate regions and biogroups to identify priority areas and gap analysis to assess their representation within the current protected areas. ResultsSeven climate regions were identified, mostly arranged as latitudinal belts. Concentrations of high species richness were found in the Sahel, but the central Sahara gathers most endemic and threatened species. Ten biogroups (five for endemics) were identified. A wide range of biogroups tend to overlap in specific climate regions. Identified priority areas are inadequately represented in protected areas, and six new top conservation areas are needed to achieve conservation targets. Main conclusionsBiodiversity distribution in Sahara-Sahel is spatially structured and apparently related to environmental variation. Although the majority of priority conservation areas are located outside the areas of intense human activities, many cross multiple political borders and require internationally coordinated efforts for implementation and management. Optimized biodiversity conservation solutions at regional scale are needed. Our work contradicts the general idea that deserts are uniform areas and provide options for the conservation of endangered species.

引用

页码：371 / 384

页数：14

共 91 条

[1] Opportunity costs: Who really pays for conservation? [J].