Madagascar’s extraordinary biodiversity: evolution, distribution, and use

Alexandre Antonelli, Rhian J. Smith, Allison L. Perrigo, Angelica Crottini, Jan Hackel, Weston Testo, Harith Farooq, Maria F. Torres Jiménez, Niels Andela, Tobias Andermann, Andotiana M. Andriamanohera, Sylvie Andriambololonera, Steven P. Bachman, Christine D. Bacon, William J. Baker, Francesco Belluardo, Chris Birkinshaw, James S. Borrell, Stuart Cable, Nataly A. CanalesJuan D. Carrillo, Rosie Clegg, Colin Clubbe, Robert S. C. Cooke, Gabriel Damasco, Sonia Dhanda, Daniel Edler, Søren Faurby, Paola De Lima Ferreira, Brian L. Fisher, Félix Forest, Lauren M. Gardiner, Steven M. Goodman, Olwen M. Grace, Thaís B. Guedes, Marie C. Henniges, Rowena Hill, Caroline E. R. Lehmann, Porter P. Lowry, Lovanomenjanahary Marline, Pável Matos-Maraví, Justin Moat, Beatriz Neves, Matheus G. C. Nogueira, Renske E. Onstein, Alexander S. T. Papadopulos, Oscar A. Perez-Escobar, Leanne N. Phelps, Peter B. Phillipson, Samuel Pironon, Natalia A. S. Przelomska, Marina Rabarimanarivo, David Rabehevitra, Jeannie Raharimampionona, Mamy Tiana Rajaonah, Fano Rajaonary, Landy R. Rajaovelona, Mijoro Rakotoarinivo, Amédée A. Rakotoarisoa, Solofo E. Rakotoarisoa, Herizo N. Rakotomalala, Franck Rakotonasolo, Berthe A. Ralaiveloarisoa, Myriam Ramirez-Herranz, Jean Emmanuel N. Randriamamonjy, Tianjanahary Randriamboavonjy, Vonona Randrianasolo, Andriambolantsoa Rasolohery, Anitry N. Ratsifandrihamanana, Noro Ravololomanana, Velosoa Razafiniary, Henintsoa Razanajatovo, Estelle Razanatsoa, Malin Rivers, Ferran Sayol, Daniele Silvestro, Maria S. Vorontsova, Kim Walker, Barnaby E. Walker, Paul Wilkin, Jenny Williams, Thomas Ziegler, Alexander Zizka, Hélène Ralimanana

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Madagascar’s biota is hyperdiverse and includes exceptional levels of endemicity. We review the current state of knowledge on Madagascar’s past and current terrestrial and freshwater biodiversity by compiling and presenting comprehensive data on species diversity, endemism, and rates of species description and human uses, in addition to presenting an updated and simplified map of vegetation types. We report a substantial increase of records and species new to science in recent years; however, the diversity and evolution of many groups remain practically unknown (e.g., fungi and most invertebrates). Digitization efforts are increasing the resolution of species richness patterns and we highlight the crucial role of field- and collections-based research for advancing biodiversity knowledge and identifying gaps in our understanding, particularly as species richness corresponds closely to collection effort. Phylogenetic diversity patterns mirror that of species richness and endemism in most of the analyzed groups. We highlight humid forests as centers of diversity and endemism because of their role as refugia and centers of recent and rapid radiations. However, the distinct endemism of other areas, such as the grassland-woodland mosaic of the Central Highlands and the spiny forest of the southwest, is also biologically important despite lower species richness. The documented uses of Malagasy biodiversity are manifold, with much potential for the uncovering of new useful traits for food, medicine, and climate mitigation. The data presented here showcase Madagascar as a unique “living laboratory” for our understanding of evolution and the complex interactions between people and nature. The gathering and analysis of biodiversity data must continue and accelerate if we are to fully understand and safeguard this unique subset of Earth’s biodiversity.
Original languageEnglish
Article numbereabf0869
Number of pages11
Issue number6623
Publication statusPublished - 2 Dec 2022


  • UKRI
  • NERC
  • NE/L002485/1

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