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The Late Pleistocene to the beginning of the Holocene saw the extinction of the majority of the world's megafauna (typically defined as animal species having body masses over 44 kilograms (97 lb)), [1] which resulted in a collapse in faunal density and diversity across the globe. [2] The extinctions during the Late Pleistocene are ...
Tennessee, Cumberland, Ohio, and Wabash River systems [ 192 ] Extinct in 1936 due to loss of habitat through impoundment or channelization. [ 8 ] Sampson's pearly mussel. Epioblasma sampsonii. Kentucky, Illinois, and Indiana [ 193 ] Extinct in the 1930s or 1940s due to habitat destruction and fragmentation.
The reason that a number of groups went extinct in North America but lived on in South America (while no examples of the opposite pattern are known) appears to be that the dense rainforest of the Amazon basin and the high peaks of the Andes provided environments that afforded a degree of protection from human predation. [168] [n 25] [n 26]
The report concluded that global warming of 2 °C (3.6 °F) over the preindustrial levels would threaten an estimated 5% of all the Earth's species with extinction even in the absence of the other four factors, while if the warming reached 4.3 °C (7.7 °F), 16% of the Earth's species would be threatened with extinction.
Pleistocene rewilding is the advocacy of the reintroduction of extant Pleistocene megafauna, or the close ecological equivalents of extinct megafauna. [ 1 ] It is an extension of the conservation practice of rewilding, which aims to restore functioning, self-sustaining ecosystems through practices that may include species reintroductions.
The American lion is estimated to have measured 1.6 to 2.5 m (5 ft 3 in to 8 ft 2 in) from the tip of the nose to the base of the tail and stood 1.2 m (3.9 ft) at the shoulder. [25] Panthera atrox was at least as sexually dimorphic as African lions, with an approximate range of between 235kg to 523 kg (518lbs-1153lbs) in males and 175kg to 365 ...
List of Saint Helena, Ascension and Tristan da Cunha animals extinct in the Holocene. List of Asian animals extinct in the Holocene. List of European species extinct in the Holocene. List of extinct animals of the British Isles. List of North American animals extinct in the Holocene. List of Antillian and Bermudan animals extinct in the Holocene.
The conservation of bison in North America is an ongoing, diverse effort to bring American bison (Bison bison) back from the brink of extinction. Plains bison, a subspecies (Bison bison bison), are a keystone species in the North American Great Plains. Bison are a species of conservation concern in part because they suffered a severe population ...