Corpus ID: 82577005

The Galapagos Tortoises: Nomenclatural and Survival Status

  title={The Galapagos Tortoises: Nomenclatural and Survival Status},
  author={P. Pritchard},
Re-examination of the giant fossil tortoise Hesperotestudo from near the Illinois glacial-sangamon interglacial boundary in North America with commentary on zoogeography
Several zoogeographical scenarios pertaining to the origin and movement of the tortoise to the collection site are presented, including the most likely is perhaps northward movement from the central Gulf Coast along the Mississippi River floodplain before the major meltdown of the Illinois glaciation. Expand
Patterns, Mechanisms and Genetics of Speciation in Reptiles and Amphibians
The research on different aspects of speciation in reptiles and amphibians, including biogeography and climatic niches, ecological speciation, the relationship between speciation rates and phenotypic traits, and genetics and genomics is reviewed. Expand
More on the status of Testudo nigra Quoy and Gaimard and Testudo nigrita Duméril and Bibron as nomina dubia for Galapagos tortoises (Testudines: Testudinidae)
It is confirmed that there is probably no possibility of establishing its island of origin within the Galapagos, and the status of the name Testudo nigrita as a nomen dubium is here further confirmed by the fact that its lectotype no longer exists. Expand
Cryptic structure and niche divergence within threatened Galápagos giant tortoises from southern Isabela Island
It is suggested that current strategies whereby populations are managed separately are warranted pending further study, but due to mixed ancestry it is recommended that Cerro Paloma tortoises be excluded from management programs. Expand
Unravelling the peculiarities of island life: vicariance, dispersal and the diversification of the extinct and extant giant Galápagos tortoises
This work provides an example of how to reconstruct the history of endangered taxa in spite of extinctions and human‐mediated dispersal events and highlights the need to take into account both vicariance and dispersal when dealing with organisms from islands whose associations are not simply explained by a linear emergence model. Expand
Turtles of the World: Annotated Checklist of Taxonomy and Synonymy
000.1 Conservation Biology of Freshwater Turtles and Tortoises: A Compilation Project of the IUCN/SSC Tortoise and Freshwater Turtle Specialist Group A.G.J. Rhodin, P.C.H. Pritchard, P.P. van Dijk,Expand
Genetic divergence, phylogeography and conservation units of giant tortoises from Santa Cruz and Pinzón, Galápagos Islands
Populations displayed marked genetic divergence, contrasting demographic histories, and deep phylogeographic structure, and the pattern of diversification among populations was consistent with geological and biogeographichistory, and to some extent with adaptive andmorphological divergence. Expand
Microsatellite analysis of genetic divergence among populations of giant Galápagos tortoises
This work described the genetic structure of tortoises on the island of Isabela, where discrimination of different taxa is still subject of debate, and used 10 microsatellite loci to assess levels of genetic divergence among and within island populations. Expand
Hesperotestudo (Testudines: Testudinidae) from the Pleistocene of Bermuda, with comments on the phylogenetic position of the genus
A review of the phylogenetic relationships of the better known genera of the Testudinidae suggests that the affinities of Hesperotestudo lie with other North American tortoises ( Gopherus ) and not with Geochelone or other testudinines; thus, HesperOTestudo is reassigned to the Xerobatinae. Expand


The evolution of an atoll: the depositional and erosional history of Aldabra
The earliest sediments identified of late Pleistocene age are quiet-water calcarenites, containing abundant molluscs but few corals. As waters shallowed these were replaced by emergent intertidalExpand