2014
Cryptic structure and niche divergence within threatened Galápagos giant tortoises from southern Isabela Island
Edwards D, Garrick R, Tapia W, Caccone A. Cryptic structure and niche divergence within threatened Galápagos giant tortoises from southern Isabela Island. Conservation Genetics 2014, 15: 1357-1369. DOI: 10.1007/s10592-014-0622-z.Peer-Reviewed Original ResearchSouthern Isabela IslandGalápagos giant tortoisesGenetic clustersIsabela IslandGiant tortoisesMorphological diversityRecent gene flowBiodiversity lossConservation managementEcological divergenceSignificant unitsNiche divergenceFeral animalsEcological factorsGenetic differentiationEcological nichesGene flowCryptic structureMicrosatellite lociManagement successSpatial distributionCurrent taxonomyTortoisesManagement programDiversity
2013
The genetic legacy of Lonesome George survives: Giant tortoises with Pinta Island ancestry identified in Galápagos
Edwards D, Benavides E, Garrick R, Gibbs J, Russello M, Dion K, Hyseni C, Flanagan J, Tapia W, Caccone A. The genetic legacy of Lonesome George survives: Giant tortoises with Pinta Island ancestry identified in Galápagos. Biological Conservation 2013, 157: 225-228. DOI: 10.1016/j.biocon.2012.10.014.Peer-Reviewed Original ResearchLonesome GeorgeGiant tortoise speciesFirst-generation hybridsPurebred individualsAdditional hybridsPinta IslandGeneration hybridsGenetic legacyTortoise speciesGiant tortoisesSpecies recoveryGalápagos ArchipelagoRelative abundanceIsabela IslandTortoisesUnrelated individualsAdditional individualsAncestryHybridsIslands
2012
Genetic rediscovery of an ‘extinct’ Galápagos giant tortoise species
Garrick R, Benavides E, Russello M, Gibbs J, Poulakakis N, Dion K, Hyseni C, Kajdacsi B, Márquez, Bahan S, Ciofi C, Tapia W, Caccone A. Genetic rediscovery of an ‘extinct’ Galápagos giant tortoise species. Current Biology 2012, 22: r10-r11. PMID: 22240469, DOI: 10.1016/j.cub.2011.12.004.Peer-Reviewed Original ResearchConceptsFloreana IslandHybrid individualsGiant tortoise speciesUnique evolutionary lineagesGiant Galápagos tortoisesCaptive breeding programsEvolutionary lineagesGalápagos tortoisesHybrid offspringExtinct speciesGenetic footprintsTortoise speciesBreeding programsGalápagos IslandsGenetic signaturesExtant individualsIsabela IslandGenomeSpeciesMixed ancestryTortoisesAncestryIslandsLineagesLikely mechanism
2011
Lineage Identification and Genealogical Relationships Among Captive Galápagos Tortoises
Benavides E, Russello M, Boyer D, Wiese R, Kajdacsi B, Marquez L, Garrick R, Caccone A. Lineage Identification and Genealogical Relationships Among Captive Galápagos Tortoises. Zoo Biology 2011, 31: 107-120. PMID: 21674601, DOI: 10.1002/zoo.20397.Peer-Reviewed Original ResearchConceptsGenealogical relationshipsGalápagos tortoisesEx situ conservation programsMicrosatellite genotypic dataSan Diego ZooGalápagos giant tortoisesWild-born individualsSitu conservation programsLevels of relatednessDetailed management recommendationsSanta Cruz IslandEvolutionary lineagesAssignment testsGenetic toolsSpecies designationRelated foundersGiant tortoisesGenotypic dataUnknown ancestryHaplotypic dataPedigree relationshipsDifferent speciesLineage identificationIsabela IslandConservation programs
2002
PHYLOGEOGRAPHY AND HISTORY OF GIANT GALAPAGOS TORTOISES
Caccone A, Gentile G, Gibbs JP, Fritts T, Snell HL, Betts J, Powell JR. PHYLOGEOGRAPHY AND HISTORY OF GIANT GALAPAGOS TORTOISES. Evolution 2002, 56: 2052-2066. PMID: 12449492, DOI: 10.1111/j.0014-3820.2002.tb00131.x.Peer-Reviewed Original ResearchConceptsMultiple colonizationsMaternal lineagesMitochondrial DNA sequence dataClear genetic differentiationDNA sequence dataSanta Cruz IslandBiological treasureComplex phylogeographyGenetic differentiationExtant islandsPinzón IslandMolecular clockDeep nodesExtant taxaSequence dataVolcan WolfYounger islandsInsular environmentsHuman transportPhylogeographyTortoise populationsTaxaIsabela IslandDistinct populationsLineagesPHYLOGEOGRAPHY AND HISTORY OF GIANT GALPAGOS TORTOISES
Caccone A, Gentile G, Gibbs J, Fritts T, Snell H, Betts J, Powell J. PHYLOGEOGRAPHY AND HISTORY OF GIANT GALPAGOS TORTOISES. Evolution 2002, 56: 2052-2066. DOI: 10.1554/0014-3820(2002)056[2052:pahogg]2.0.co;2.Peer-Reviewed Original ResearchMultiple colonizationsMaternal lineagesMitochondrial DNA sequence dataClear genetic differentiationDNA sequence dataSanta Cruz IslandBiological treasureComplex phylogeographyGenetic differentiationExtant islandsMolecular clockDeep nodesExtant taxaSequence dataVolcan WolfYounger islandsInsular environmentsHuman transportPhylogeographyTortoise populationsTaxaLineagesIsabela IslandDistinct populationsTortoises