Genetic analysis of a successful repatriation programme: giant Galápagos tortoises
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چکیده
منابع مشابه
Phylogeography and history of giant Galápagos tortoises.
We examined the phylogeography and history of giant Galápagos tortoise populations based on mitochondrial DNA sequence data from 161 individuals from 21 sampling sites representing the 11 currently recognized extant taxa. Molecular clock and geological considerations indicate a founding of the monophyletic Galápagos lineage around 2-3 million years ago, which would allow for all the diversifica...
متن کاملOrigin and evolutionary relationships of giant Galápagos tortoises.
Perhaps the most enduring debate in reptile systematics has involved the giant Galápagos tortoises (Geochelone nigra), whose origins and systematic relationships captivated Charles Darwin and remain unresolved to this day. Here we report a phylogenetic reconstruction based on mitochondrial DNA sequences from Galápagos tortoises and Geochelone from mainland South America and Africa. The closest ...
متن کاملGiant tortoises
science. Daytime science is made of the polished, linear, rigorous stories you can read in a journal such as this one, or hear in talks. Night-time science is the messy heap of intuition, despair or elation, association of seemingly unrelated ideas, absolute absence of rigour, that feeds daytime science. To me, night-time science is the creative, exciting bit. The polishing, rigor, and so on, h...
متن کاملNaturally rare versus newly rare: demographic inferences on two timescales inform conservation of Galápagos giant tortoises
Long-term population history can influence the genetic effects of recent bottlenecks. Therefore, for threatened or endangered species, an understanding of the past is relevant when formulating conservation strategies. Levels of variation at neutral markers have been useful for estimating local effective population sizes (N e ) and inferring whether population sizes increased or decreased over t...
متن کاملGiant tortoises are not so slow: rapid diversification and biogeographic consensus in the Galápagos.
Isolated oceanic archipelagos have played a major role in the development of evolutionary theory by offering a unique setting for studying spatial and temporal patterns of biological diversification. However, the evolutionary events that cause associations between genetic variation and geography in archipelago radiations are largely unknown. This finding is especially true in the Galápagos Isla...
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ژورنال
عنوان ژورنال: Proceedings of the Royal Society of London. Series B: Biological Sciences
سال: 2004
ISSN: 0962-8452,1471-2954
DOI: 10.1098/rspb.2003.2607