Taxonomic status of the genus Sotalia:: Species level ranking for "tucuxi" (Sotalia fluviatilis) and "costero" (Sotalia guianensis) dolphins

被引:80
作者
Caballero, S.
Trujillo, F.
Vianna, J. A.
Barrios-Garrido, H.
Montiel, M. G.
Beltran-Pedreros, S.
Marmontel, M.
Santos, M. C.
Rossi-Santos, M.
Santos, F. R.
Baker, C. S.
机构
[1] Univ Auckland, Sch Biol Sci, Lab Mol Ecol & Evolut, Auckland 1, New Zealand
[2] Fdn Omacha, Bogota, Colombia
[3] Univ Fed Minas Gerais, ICB, Dept Biol Geral, BR-31270010 Belo Horizonte, MG, Brazil
[4] Univ Andres Bello, Fac Ecol & Recursos Nat, Escuela Med Vet, Santiago, Chile
[5] Univ Zulia, Fac Ciencias Expt, Lab Sistemat Invertebrados Acuat, LASIA, Maracaibo 4011, Venezuela
[6] Inst Venezolano Invest Cient, Ctr Ecol, Lab Ecol & Genet Poblac, Altos de Pipe, Estado Miranda, Venezuela
[7] Ctr Univ Luterano Manaus, Colecao Zool Paulo Burheim, Zool Lab, Manaus, Amazonas, Brazil
[8] Soc Civil Mamiraua, BR-66075110 Belem, Para, Brazil
[9] Univ Estadual Paulista, UNESP, Dept Zool,Projeto Atlantis, Lab Biol Conservacao Cetaceos,Inst Biol Conservac, Sao Paulo, Brazil
[10] Inst Baleia Jubarte, BR-45900000 Caravelas, Brazil
[11] Oregon State Univ, Hatfield Marine Sci Ctr, Marine Mammal Inst, Newport, OR 97365 USA
关键词
tucuxi; mtDNA; nuclear DNA; taxonomy; Sotalia guianensis; Sotalia fluviatilis;
D O I
10.1111/j.1748-7692.2007.00110.x
中图分类号
Q17 [水生生物学];
学科分类号
071004 ;
摘要
Dolphins of the genus Sotalia are found along the Caribbean and Atlantic coasts of Central and South America and in the Amazon River and most of its tributaries. At present, the taxonomy of these dolphins remains unresolved. Although five species were described in the late 1800s, only one species is recognized currently (Sotalia fluviatilis) with two ecotypes or subspecies, the coastal subspecies (Sotalia fluviatilis guianensis) and the riverine subspecies (Sotalia fluviatilis fluviatilis). Recent morphometric analyses, as well as mitochondrial DNA analysis, suggested recognition of each subspecies as separate species. Here we review the history of the classification of this genus and present new genetic evidence from ten nuclear and three mitochondrial genes supporting the elevation of each subspecies to the species level under the Genealogical/Lineage Concordance Species Concept and the criterion of irreversible divergence. We also review additional evidence for this taxonomic revision from previously published and unpublished genetic, morphological, and ecological studies. We propose the common name "costero" for the coastal species, Sotalia guianensis (Van Beneden 1864), and accept the previously proposed "tucuxi" dolphin, Sotalia fluviatilis (Gervais, 1853), for the riverine species.
引用
收藏
页码:358 / 386
页数:29
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