A cryptic taxon of Galápagos tortoise in conservation peril
نویسندگان
چکیده
منابع مشابه
A cryptic taxon of Galápagos tortoise in conservation peril.
As once boldly stated, 'bad taxonomy can kill', highlighting the critical importance of accurate taxonomy for the conservation of endangered taxa. The concept continues to evolve almost 15 years later largely because most legal protections aimed at preserving biological diversity are based on formal taxonomic designations. In this paper we report unrecognized genetic divisions within the giant ...
متن کاملMorphometrics Parallel Genetics in a Newly Discovered and Endangered Taxon of Galápagos Tortoise
Galápagos tortoises represent the only surviving lineage of giant tortoises that exhibit two different types of shell morphology. The taxonomy of Galápagos tortoises was initially based mainly on diagnostic morphological characters of the shell, but has been clarified by molecular studies indicating that most islands harbor monophyletic lineages, with the exception of Isabela and Santa Cruz. On...
متن کاملBiogeography of Parasitic Nematode Communities in the Galápagos Giant Tortoise: Implications for Conservation Management
The Galápagos giant tortoise is an icon of the unique, endemic biodiversity of Galápagos, but little is known of its parasitic fauna. We assessed the diversity of parasitic nematode communities and their spatial distributions within four wild tortoise populations comprising three species across three Galápagos islands, and consider their implication for Galápagos tortoise conservation programme...
متن کاملGenetic rediscovery of an ‘extinct’ Galápagos giant tortoise species
their sperm. As mentioned above, if sperm were not adapted to survive (sperm longevity) inside the female’s reproductive tract, the female would be limited in her ability to maintain sperm. Males may face a trade-off between sperm competitive ability (fast-swimming sperm) and ability to be stored (long-lived and slow-swimming sperm). Sperm pre-adaptations for storage include a decreased sensiti...
متن کاملDNA from the Past Informs Ex Situ Conservation for the Future: An “Extinct” Species of Galápagos Tortoise Identified in Captivity
BACKGROUND Although not unusual to find captive relicts of species lost in the wild, rarely are presumed extinct species rediscovered outside of their native range. A recent study detected living descendents of an extinct Galápagos tortoise species (Chelonoidis elephantopus) once endemic to Floreana Island on the neighboring island of Isabela. This finding adds to the growing cryptic diversity ...
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ژورنال
عنوان ژورنال: Biology Letters
سال: 2005
ISSN: 1744-9561,1744-957X
DOI: 10.1098/rsbl.2005.0317