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2. Genomic signatures of past megafrugivore‐mediated dispersal in Malagasy palms

Author

Méndez, Laura, Barratt, Christopher D., Durka, Walter, Kissling, W. Daniel, Eiserhardt, Wolf L., Baker, William J., Randrianasolo, Vonona, Onstein, R.E. (Renske), Méndez, Laura, Barratt, Christopher D., Durka, Walter, Kissling, W. Daniel, Eiserhardt, Wolf L., Baker, William J., Randrianasolo, Vonona, and Onstein, R.E. (Renske)

Abstract

Seed dispersal affects gene flow and hence genetic differentiation of plant populations. During the Late Quaternary, most fruit-eating and seed-dispersing megafauna went extinct, but whether these animals have left signatures in the population genetics of their food plants, particularly those with large, ‘megafaunal’ fruits (i.e. >4 cm—megafruits), remains unclear.Here, we assessed the population history, genetic differentiation and recent migration among populations of four animal-dispersed palm (Arecaceae) species with large (Borassus madagascariensis), medium-sized (Hyphaene coriacea, Bismarckia nobilis) and small (Chrysalidocarpus madagascariensis) fruits on Madagascar. We integrated double-digest restriction-site-associated DNA sequencing (ddRAD) of 167 individuals from 25 populations with (past) distribution ranges for extinct (e.g., giant lemurs and elephant birds) and extant seed-dispersing animals, landscape and human impact data, and applied linear mixed-effects models to explore the drivers of genetic variation in Malagasy palms.Palm populations that shared more megafrugivore species in the past had lower genetic differentiation than populations that shared fewer megafrugivore species. This suggests that megafrugivore-mediated seed dispersal in the past may have led to frequent gene flow among populations. In comparison, extant frugivore diversity only decreased genetic differentiation in the small-fruited palm. Furthermore, genetic differentiation of all palm species decreased with landscape connectivity (i.e. environmental suitability, forest cover and river density) and human impact (i.e. road density), while migration rates of the small-fruit palm increased with road density.Synthesis. Our results suggest that the legacy of megafrugivores regularly achieving long dispersal distances is still reflected in the population genetics of palms that were formerly dispersed by such animals. Furthermore, low genetic differentiation was possibly maintained after

Published
2024
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4. Madagascar’s extraordinary biodiversity: Evolution, distribution, and use

Author

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

Published
2022
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5. Madagascar’s extraordinary biodiversity: Threats and opportunities

Author

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

Published
2022
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6. Madagascar's extraordinary biodiversity : Evolution, distribution, and use

Author

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

Abstract

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.

Published
2022
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7. Madagascar's extraordinary biodiversity : Threats and opportunities

Author

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

Abstract

Madagascar's unique biota is heavily affected by human activity and is under intense threat. Here, we review the current state of knowledge on the conservation status of Madagascar's terrestrial and freshwater biodiversity by presenting data and analyses on documented and predicted species-level conservation statuses, the most prevalent and relevant threats, ex situ collections and programs, and the coverage and comprehensiveness of protected areas. The existing terrestrial protected area network in Madagascar covers 10.4% of its land area and includes at least part of the range of the majority of described native species of vertebrates with known distributions (97.1% of freshwater fishes, amphibians, reptiles, birds, and mammals combined) and plants (67.7%). The overall figures are higher for threatened species (97.7% of threatened vertebrates and 79.6% of threatened plants occurring within at least one protected area). International Union for Conservation of Nature (IUCN) Red List assessments and Bayesian neural network analyses for plants identify overexploitation of biological resources and unsustainable agriculture as themost prominent threats to biodiversity. We highlight five opportunities for action at multiple levels to ensure that conservation and ecological restoration objectives, programs, and activities take account of complex underlying and interacting factors and produce tangible benefits for the biodiversity and people of Madagascar.

Published
2022
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8. Madagascar’s extraordinary biodiversity:Evolution, distribution, and use

Author

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

Abstract

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.

Published
2022

9. Madagascar’s extraordinary biodiversity:Threats and opportunities

Author

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

Abstract

Madagascar’s unique biota is heavily affected by human activity and is under intense threat. Here, we review the current state of knowledge on the conservation status of Madagascar’s terrestrial and freshwater biodiversity by presenting data and analyses on documented and predicted species-level conservation statuses, the most prevalent and relevant threats, ex situ collections and programs, and the coverage and comprehensiveness of protected areas. The existing terrestrial protected area network in Madagascar covers 10.4% of its land area and includes at least part of the range of the majority of described native species of vertebrates with known distributions (97.1% of freshwater fishes, amphibians, reptiles, birds, and mammals combined) and plants (67.7%). The overall figures are higher for threatened species (97.7% of threatened vertebrates and 79.6% of threatened plants occurring within at least one protected area). International Union for Conservation of Nature (IUCN) Red List assessments and Bayesian neural network analyses for plants identify overexploitation of biological resources and unsustainable agriculture as the most prominent threats to biodiversity. We highlight five opportunities for action at multiple levels to ensure that conservation and ecological restoration objectives, programs, and activities take account of complex underlying and interacting factors and produce tangible benefits for the biodiversity and people of Madagascar.

Published
2022

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