The macroevolutionary impact of recent and imminent mammal extinctions on Madagascar.
The macroevolutionary impact of recent and imminent mammal extinctions on Madagascar.
复制标题
DOI:
10.1038/s41467-022-35215-3
复制
发表时间:
2023-01-10
影响因子:
16.6
通讯作者:
Valente, Luis
中科院分区:
文献类型:
--
作者:
Michielsen, Nathan M.;Goodman, Steven M.;Soarimalala, Voahangy;van der Geer, Alexandra A. E.;Davalos, Liliana M.;Saville, Grace, I;Upham, Nathan;Valente, Luis
Many of Madagascar’s unique species are threatened with extinction. However, the severity of recent and potential extinctions in a global evolutionary context is unquantified. Here, we compile a phylogenetic dataset for the complete non-marine mammalian biota of Madagascar and estimate natural rates of extinction, colonization, and speciation. We measure how long it would take to restore Madagascar’s mammalian biodiversity under these rates, the “evolutionary return time” (ERT). At the time of human arrival there were approximately 250 species of mammals on Madagascar, resulting from 33 colonisation events (28 by bats), but at least 30 of these species have gone extinct since then. We show that the loss of currently threatened species would have a much deeper long-term impact than all the extinctions since human arrival. A return from current to pre-human diversity would take 1.6 million years (Myr) for bats, and 2.9 Myr for non-volant mammals. However, if species currently classified as threatened go extinct, the ERT rises to 2.9 Myr for bats and 23 Myr for non-volant mammals. Our results suggest that an extinction wave with deep evolutionary impact is imminent on Madagascar unless immediate conservation actions are taken. Madagascar is a threatened biodiversity hotspot. Here, using a newly assembled dataset and island biogeography models, the authors estimate how many millions of years of evolutionary history have been lost since human colonisation and may be further lost in the future for Malagasy mammals.
登录
查看更多内容
影响因子:
13.6
作者:
Hansford J;Wright PC;Rasoamiaramanana A;Pérez VR;Godfrey LR;Errickson D;Thompson T;Turvey ST
通讯作者:
Turvey ST
影响因子:
5.9
作者:
Crowley, Brooke E.;Godfrey, Laurie R.;Burney, David A.
通讯作者:
Burney, David A.
DOI:
10.1073/pnas.1112487109
发表时间:
2012-04-03
影响因子:
11.1
作者:
Crottini, Angelica;Madsen, Ole;Vences, Miguel
通讯作者:
Vences, Miguel
影响因子:
16.6
作者:
Gunnell GF;Boyer DM;Friscia AR;Heritage S;Manthi FK;Miller ER;Sallam HM;Simmons NB;Stevens NJ;Seiffert ER
通讯作者:
Seiffert ER
影响因子:
4
作者:
Burns, Stephen J.;Godfrey, Laurie R.;Randrianasy, Jeannot
通讯作者:
Randrianasy, Jeannot