2005
A cryptic taxon of Galpagos tortoise in conservation peril
Russello M, Glaberman S, Gibbs J, Marquez C, Powell J, Caccone A. A cryptic taxon of Galpagos tortoise in conservation peril. Biology Letters 2005, 1: 287-290. PMID: 17148189, PMCID: PMC1617146, DOI: 10.1098/rsbl.2005.0317.Peer-Reviewed Original ResearchConceptsBiological diversityFormal taxonomic designationGenetic divergenceGalápagos tortoisesAccurate taxonomyDistinct lineagesTaxonomic investigationGenetic divisionTaxonomic designationsSingle taxonGiant tortoisesBad taxonomyEvolutionary heritageNew taxonTaxaAccessible islandsTortoisesHuman intellectual historyDiversityConservationSanta CruzTaxonomyLineagesGalápagosOrganisms
2004
Giant tortoises are not so slow: Rapid diversification and biogeographic consensus in the Galápagos
Beheregaray L, Gibbs J, Havill N, Fritts T, Powell J, Caccone A. Giant tortoises are not so slow: Rapid diversification and biogeographic consensus in the Galápagos. Proceedings Of The National Academy Of Sciences Of The United States Of America 2004, 101: 6514-6519. PMID: 15084743, PMCID: PMC404076, DOI: 10.1073/pnas.0400393101.Peer-Reviewed Original ResearchConceptsGiant Galápagos tortoisesGalápagos tortoisesGreat natural laboratoryGenetic variationDivergent monophyletic cladesHistory of diversificationIsolated oceanic archipelagoPatterns of colonizationBiogeographic predictionsEvolutionary diversificationGene flowEndemic haplotypesExtant populationsLimited dispersalOceanic archipelagosBiogeographic patternsEvolutionary eventsBiological diversificationMonophyletic cladeMtDNA sequencesRapid diversificationGenetic interchangeRange expansionOlder islandsGiant tortoises