caa a22 4500 445858060 CHVBK 20180317145434.0 cr unu---uuuuu 170323e20110401xx s 000 0 eng 10.1007/s10592-010-0153-1 doi (NATIONALLICENCE)springer-10.1007/s10592-010-0153-1 Effect of human-mediated migration and hybridization on the recovery of the American crocodile in Florida (USA) [Elektronische Daten] [David Rodriguez, Michael Forstner, Paul Moler, Joseph Wasilewski, Michael Cherkiss, Llewellyn Densmore III] The American crocodile (Crocodylus acutus) is a large apex predator with an extensive but fragmented range. Crocodylus acutus suffered a population crash and was almost extirpated from Florida (USA) during the 1970s; however, in 2007 it was federally downlisted from endangered to threatened based on an increase of suitable habitat and a growing population. A genetic assessment of this population has not been performed even though foreign crocodiles have been released into Florida waters. Herein, we use mitochondrial and nuclear DNA markers to characterize relationships among American crocodiles along the southern coast of Florida and reference samples from other countries. We detected inter- and intra-specific hybridization and unexpected population structure attributed to human-mediated migration of crocodiles from Latin America and the Greater Antilles. Our results suggest that the population size of crocodiles actually native to Florida should be reevaluated, particularly in light of ongoing admixture in this population. We reemphasize the utility of genetic markers in conservation and management programs for endangered species; especially those that can hybridize with closely related congeners. The American crocodile in Florida has recovered owing to successful conservation initiatives, but a long-term management protocol that takes genetic data into account is still needed. Springer Science+Business Media B.V., 2010 Crocodylus nationallicence Endangered species recovery nationallicence Human-mediated migration nationallicence Hybridization nationallicence Population genetics nationallicence Rodriguez David Department of Ecology and Evolutionary Biology, Cornell University, 14853, Ithaca, NY, USA aut Forstner Michael Department of Biology, Texas State University, 78666, San Marcos, TX, USA aut Moler Paul Florida Fish & Wildlife Conservation Commission, 32601, Gainesville, FL, USA aut Wasilewski Joseph Natural Selections of South Florida, 33032, Princeton, FL, USA aut Cherkiss Michael University of Florida-FLREC, 33314, Fort Lauderdale, FL, USA aut Densmore III Llewellyn Department of Biological Sciences, Texas Tech University, 79409, Lubbock, TX, USA aut Conservation Genetics Springer Netherlands 12/2(2011-04-01), 449-459 1566-0621 12:2<449 2011 12 10592 https://doi.org/10.1007/s10592-010-0153-1 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10592-010-0153-1 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Rodriguez David Department of Ecology and Evolutionary Biology, Cornell University, 14853, Ithaca, NY, USA aut NATIONALLICENCE 700 1- Forstner Michael Department of Biology, Texas State University, 78666, San Marcos, TX, USA aut NATIONALLICENCE 700 1- Moler Paul Florida Fish & Wildlife Conservation Commission, 32601, Gainesville, FL, USA aut NATIONALLICENCE 700 1- Wasilewski Joseph Natural Selections of South Florida, 33032, Princeton, FL, USA aut NATIONALLICENCE 700 1- Cherkiss Michael University of Florida-FLREC, 33314, Fort Lauderdale, FL, USA aut NATIONALLICENCE 700 1- Densmore III Llewellyn Department of Biological Sciences, Texas Tech University, 79409, Lubbock, TX, USA aut NATIONALLICENCE 773 0- Conservation Genetics Springer Netherlands 12/2(2011-04-01), 449-459 1566-0621 12:2<449 2011 12 10592 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer