caa a22 4500 445845147 CHVBK 20180317145356.0 cr unu---uuuuu 170323e20110701xx s 000 0 eng 10.1007/s10709-011-9583-z doi (NATIONALLICENCE)springer-10.1007/s10709-011-9583-z Evidence of two genetic clusters of manatees with low genetic diversity in Mexico and implications for their conservation [Elektronische Daten] [Coralie Nourisson, Benjamín Morales-Vela, Janneth Padilla-Saldívar, Kimberly Tucker, AnnMarie Clark, Leon Olivera-Gómez, Robert Bonde, Peter McGuire] The Antillean manatee (Trichechus manatus manatus) occupies the tropical coastal waters of the Greater Antilles and Caribbean, extending from Mexico along Central and South America to Brazil. Historically, manatees were abundant in Mexico, but hunting during the pre-Columbian period, the Spanish colonization and throughout the history of Mexico, has resulted in the significantly reduced population occupying Mexico today. The genetic structure, using microsatellites, shows the presence of two populations in Mexico: the Gulf of Mexico (GMx) and Chetumal Bay (ChB) on the Caribbean coast, with a zone of admixture in between. Both populations show low genetic diversity (GMx: NA=2.69; HE=0.41 and ChB: NA=3.0; HE=0.46). The lower genetic diversity found in the GMx, the largest manatee population in Mexico, is probably due to a combination of a founder effect, as this is the northern range of the sub-species of T. m. manatus, and a bottleneck event. The greater genetic diversity observed along the Caribbean coast, which also has the smallest estimated number of individuals, is possibly due to manatees that come from the GMx and Belize. There is evidence to support limited or unidirectional gene flow between these two important areas. The analyses presented here also suggest minimal evidence of a handful of individual migrants possibly between Florida and Mexico. To address management issues we suggest considering two distinct genetic populations in Mexico, one along the Caribbean coast and one in the riverine systems connected to the GMx. Springer Science+Business Media B.V., 2011 Antillean manatee nationallicence Microsatellite nationallicence Conservation genetic nationallicence Genetic structure nationallicence Nourisson Coralie El Colegio de la Frontera Sur, Av. Centenario Km 5.5, 77000, Chetumal, Quintana Roo, Mexico aut Morales-Vela Benjamín El Colegio de la Frontera Sur, Av. Centenario Km 5.5, 77000, Chetumal, Quintana Roo, Mexico aut Padilla-Saldívar Janneth El Colegio de la Frontera Sur, Av. Centenario Km 5.5, 77000, Chetumal, Quintana Roo, Mexico aut Tucker Kimberly Department of Natural Sciences, College of Coastal Georgia, 3700 Altama Avenue, 31520, Brunswick, GA, USA aut Clark AnnMarie ICBR Genetic Analysis Laboratory, University of Florida, 2033 Mowry Road, 32610, Gainesville, FL, USA aut Olivera-Gómez Leon Division Academica de Ciencias Biologicas, Universidad Juarez Autonoma de Tabasco, Km. 0.5 carretera Villahermosa-Cárdenas, 86039, Villahermosa, Tabasco, Mexico aut Bonde Robert US Geological Survey, 2201 NW 40th Terrace, 32605, Gainesville, FL, USA aut McGuire Peter University of Florida, 2015 SW 16th Ave, 32610, Gainesville, FL, USA aut Genetica Springer Netherlands 139/7(2011-07-01), 833-842 0016-6707 139:7<833 2011 139 10709 https://doi.org/10.1007/s10709-011-9583-z text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10709-011-9583-z text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Nourisson Coralie El Colegio de la Frontera Sur, Av. Centenario Km 5.5, 77000, Chetumal, Quintana Roo, Mexico aut NATIONALLICENCE 700 1- Morales-Vela Benjamín El Colegio de la Frontera Sur, Av. Centenario Km 5.5, 77000, Chetumal, Quintana Roo, Mexico aut NATIONALLICENCE 700 1- Padilla-Saldívar Janneth El Colegio de la Frontera Sur, Av. Centenario Km 5.5, 77000, Chetumal, Quintana Roo, Mexico aut NATIONALLICENCE 700 1- Tucker Kimberly Department of Natural Sciences, College of Coastal Georgia, 3700 Altama Avenue, 31520, Brunswick, GA, USA aut NATIONALLICENCE 700 1- Clark AnnMarie ICBR Genetic Analysis Laboratory, University of Florida, 2033 Mowry Road, 32610, Gainesville, FL, USA aut NATIONALLICENCE 700 1- Olivera-Gómez Leon Division Academica de Ciencias Biologicas, Universidad Juarez Autonoma de Tabasco, Km. 0.5 carretera Villahermosa-Cárdenas, 86039, Villahermosa, Tabasco, Mexico aut NATIONALLICENCE 700 1- Bonde Robert US Geological Survey, 2201 NW 40th Terrace, 32605, Gainesville, FL, USA aut NATIONALLICENCE 700 1- McGuire Peter University of Florida, 2015 SW 16th Ave, 32610, Gainesville, FL, USA aut NATIONALLICENCE 773 0- Genetica Springer Netherlands 139/7(2011-07-01), 833-842 0016-6707 139:7<833 2011 139 10709 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer