fermentacja: Galápagos tortoise

Evidence: 100 • authority: 72

The Galápagos tortoise (Chelonoidis niger), also called the Galápagos giant tortoise, is a very large species of tortoise in the genus Chelonoidis (which also contains three smaller species from mainland South America). The species comprises 15 subspecies (12 extant and 3 extinct). It is the largest living species of tortoise, and can weigh up to 417 kg (919 lb). They are also the largest extant terrestrial cold-blooded animals (ectotherms). With lifespans in the wild of over 100 years, it is one of the longest-lived vertebrates. Captive Galapagos tortoises can live up to 177 years. For example, a captive individual, Harriet, lived for at least 175 years. Spanish explorers, who discovered t…

Evidence: 45 • authority: 80

Hormonal profiles of captive Galapagos tortoises (<i>Chelonoidis nigra</i>)

Evidence: — • authority: 72

The green sea turtle (Chelonia mydas), also known as the green turtle, black sea turtle, and Pacific green turtle, is a species of large sea turtle of the family Cheloniidae. It is the only species in the genus Chelonia. Its range extends throughout tropical and subtropical seas around the world, with two distinct populations in the Atlantic and Pacific Oceans, but it is also found in the Indian Ocean. The common name refers to the usually green fat found beneath its carapace, due to its diet strictly being seagrass, not to the color of its carapace, which is olive to black. The dorsoventrally flattened body of C. mydas is covered by a large, teardrop-shaped carapace; it has a pair of large…

Evidence: — • authority: 72

The Pinta Island tortoise (Chelonoidis niger abingdonii), also known as the Pinta giant tortoise, Abingdon Island tortoise, or Abingdon Island giant tortoise, is a recently extinct subspecies of Galápagos tortoise that was native to Ecuador's Pinta Island. The subspecies was described by Albert Günther in 1877 after specimens arrived in London. By the end of the 19th century, most of the Pinta Island tortoises had been wiped out due to hunting. By the mid-20th century, the subspecies was assumed to be extinct until a single male was discovered on the island in 1971. Efforts were made to mate the male, named Lonesome George, with other subspecies, but no viable eggs resulted. Lonesome George…

Evidence: — • authority: 72

Giant tortoises are any of several species of various large tortoises, which include a number of extinct species, as well as two extant species with multiple subspecies formerly common on the islands of the western Indian Ocean and on the Galápagos Islands.

Evidence: — • authority: 80

Human perceptions of Galapagos tortoises through history

Evidence: — • authority: 80

Galapagos tortoises in a changing climate

Evidence: — • authority: 80

Darwin and the Galapagos giant tortoises

Evidence: — • authority: 80

The Galapagos: Island home of giant tortoises

Evidence: — • authority: 92

Within-Ecosystem Comparison of Bigmouth Buffalo &lt;i&gt;Ictiobus cyprinellus&lt;/i&gt; and Common Carp &lt;i&gt;Cyprinus carpio&lt;/i&gt; Reveals Diverging Population Trajectories, Declining Recruitment, and a Lifespan of 148 Years.. The bigmouth buffalo Ictiobus cyprinellus is a long-lived, migratory freshwater fish native to North America whose numbers are declining amidst increasing conservation concerns. Recent studies have uncovered long lifespans, delayed maturation, and episodic recruitment of bigmouth buffalo. Building from previous work in the Qu'Appelle watershed of Saskatchewan, here we quantify otolith-derived population demographics of bigmouth buffalo and invasive common carp…

Evidence: — • authority: 92

Temperature along an elevation gradient determines Galapagos tortoise sex ratios.. Climate change threatens endemic island ectothermic reptiles that display small population sizes and temperature-dependent sex determination (TSD). Studies of captive Galapagos tortoises demonstrate type A TSD with warmer incubation temperatures producing females. However, there are few published data from free-living Galapagos tortoises on incubation temperature regimes, and none on hatchling sex ratios in the wild or the potential impacts of climate change on future sex ratios. We sought to address these deficits by quantifying incubation temperatures of nests and sex ratios of juvenile tortoises along an e…