منابع مشابه
Phylogeography of the Galápagos hawk (Buteo galapagoensis): a recent arrival to the Galápagos Islands.
Galápagos hawks (Buteo galapagoensis) are one of the most inbred bird species in the world, living in small, isolated island populations. We used mitochondrial sequence and nuclear minisatellite data to describe relationships among Galápagos hawk populations and their colonization history. We sampled 10 populations (encompassing the entire current species range of nine islands and one extirpate...
متن کاملHematology, serum chemistry, and serology of Galápagos penguins (Spheniscus mendiculus) in the Galápagos Islands, Ecuador.
The Galápagos penguin (Spheniscus mendiculus) is an endangered species endemic to the Galápagos Islands, Ecuador. In 2003 and 2004, 195 penguins from 13 colonies on the islands of Isabela and Fernandina in the Galápagos archipelago were examined. Genetic sexing of 157 penguins revealed 62 females and 95 males. Hematology consisted of packed cell volume (n = 134), white blood cell differentials ...
متن کاملA survey of the coccidian parasites of reptiles from islands of the Galápagos Archipelago: 1990-1994.
From 1990 through 1994, fecal samples were collected and examined for coccidian parasites from 26 giant land tortoises Geochelone nigra, from 715 lava lizards Tropidurus spp., from 139 land iguanas Conolophus subcristatus, and from 128 marine iguanas Amblyrhynchus cristatus, all of which inhabit various islands in the Galápagos Archipelago. None of the samples from A. cristatus or from C. subcr...
متن کاملLargest global shark biomass found in the northern Galápagos Islands of Darwin and Wolf.
Overfishing has dramatically depleted sharks and other large predatory fishes worldwide except for a few remote and/or well-protected areas. The islands of Darwin and Wolf in the far north of the Galapagos Marine Reserve (GMR) are known for their large shark abundance, making them a global scuba diving and conservation hotspot. Here we report quantitative estimates of fish abundance at Darwin a...
متن کاملCryptic diversity in Black rats Rattus rattus of the Galápagos Islands, Ecuador
Human activity has facilitated the introduction of a number of alien mammal species to the Galápagos Archipelago. Understanding the phylogeographic history and population genetics of invasive species on the Archipelago is an important step in predicting future spread and designing effective management strategies. In this study, we describe the invasion pathway of Rattus rattus across the Galápa...
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ژورنال
عنوان ژورنال: Nature
سال: 1960
ISSN: 0028-0836,1476-4687
DOI: 10.1038/186365b0