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Stilt-owl
The stilt-owls (''Grallistrix'') is an Extinction, extinct genus of true owls which contains four species, all of which lived on the Hawaiian Islands. ''Grallistrix'' can be loosely translated as "owl on stilts". The genus received this name due to the long legs and terrestrial habits which they Evolution, evolved in the absence of mammalian predators on their island homes. They fed on smaller birds such as Hawaiian honeycreepers. They were also able to fly, but likely did most of their hunting on the ground, filling the niches occupied by medium-sized predatory mammals elsewhere. The owls were never seen alive by scientists and are known only from subfossil bones. Species *Kaua‘i stilt-owl, ''Grallistrix auceps'' *Maui stilt-owl, ''Grallistrix erdmani'' *Moloka‘i stilt-owl, ''Grallistrix geleches'' *O‘ahu stilt-owl, ''Grallistrix orion'' See also *''Tyto pollens'' *''Ornimegalonyx'' *List of Late Quaternary prehistoric bird species *List of extinct bird species since ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Late Quaternary Prehistoric Bird Species
Late Quaternary prehistoric birds are avian taxa that became extinct during the Late Quaternary – the Late Pleistocene or Early Holocene – and before recorded history, specifically before they could be studied alive by ornithological science. They had died out before the period of global scientific exploration that started in the late 15th century. In other words, this list deals with avian extinctions between 40,000 BC and AD 1500. For the purposes of this article, a "bird" is any member of the clade Neornithes, that is, any descendant of the most recent common ancestor of all currently living birds. The birds are known from their remains, which are subfossil; as the remains are not completely fossilized, they may yield organic material for molecular analyses to provide additional clues for resolving their taxonomic affiliations. Some birds are also known from folk memory, as in the case of Haast's eagle in New Zealand. The extinction of the taxa in t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Holocene
The Holocene () is the current geologic time scale, geological epoch, beginning approximately 11,700 years ago. It follows the Last Glacial Period, which concluded with the Holocene glacial retreat. The Holocene and the preceding Pleistocene together form the Quaternary period. The Holocene is an interglacial period within the ongoing Ice age, glacial cycles of the Quaternary, and is equivalent to Marine isotope stages, Marine Isotope Stage 1. The Holocene correlates with the last maximum axial tilt towards the Sun of the Earth#Axial tilt and seasons, Earth's obliquity. The Holocene corresponds with the rapid proliferation, growth, and impacts of the human species worldwide, including Recorded history, all of its written history, technological revolutions, development of major civilizations, and overall significant transition towards urban culture, urban living in the present. The human impact on modern-era Earth and its ecosystems may be considered of global significance for th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kaua‘i Stilt-owl
Kauai (), anglicized as Kauai ( or ), is one of the main Hawaiian Islands. It has an area of 562.3 square miles (1,456.4 km2), making it the fourth-largest of the islands and the 21st-largest island in the United States. Kauai lies 73 miles (117 km) northwest of Oahu, across the Kauai Channel. The island's 2020 population was 73,298. Styling itself the "Garden Isle", Kauai is the site of Waimea Canyon State Park and Nā Pali Coast State Park. It forms the bulk of Kauai County, which includes Niihau as well as the small nearby islands of Kaula and Lehua. Etymology and language Hawaiian narrative derives the name's origin from the legend of Hawaiiloa, the Polynesian navigator credited with discovering the Hawaiian Islands. The story relates that he named the island after a favorite son; a possible translation of Kauai is "place around the neck", describing how a father would carry his child. Another possible translation is "food season". Kauai was known for its dist ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Extinct Birds Of Hawaii
Extinction is the termination of an organism by the death of its last member. A taxon may become functionally extinct before the death of its last member if it loses the capacity to reproduce and recover. As a species' potential range may be very large, determining this moment is difficult, and is usually done retrospectively. This difficulty leads to phenomena such as Lazarus taxa, where a species presumed extinct abruptly "reappears" (typically in the fossil record) after a period of apparent absence. Over five billion species are estimated to have died out. It is estimated that there are currently around 8.7 million species of eukaryotes globally, possibly many times more if microorganisms are included. Notable extinct animal species include non-avian dinosaurs, saber-toothed cats, and mammoths. Through evolution, species arise through the process of speciation. Species become extinct when they are no longer able to survive in changing conditions or against superio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flightless Birds
Flightless birds are birds that cannot Bird flight, fly, as they have, through evolution, lost the ability to. There are over 60 extant species, including the well-known ratites (ostriches, emus, cassowary, cassowaries, Rhea (bird), rheas, and Kiwi (bird), kiwis) and penguins. The smallest flightless bird is the Inaccessible Island rail (length 12.5 cm, weight 34.7 g). The largest (both heaviest and tallest) flightless bird, which is also the largest living bird in general, is the common ostrich (2.7 m, 156 kg). Many domesticated birds, such as the domestic chicken and domestic duck, have lost the ability to fly for extended periods, although their ancestral species, the red junglefowl and mallard, respectively, are capable of extended flight. A few particularly bred birds, such as the Broad Breasted White turkey, have become totally flightless as a result of selective breeding; the birds were bred to grow massive breast meat that weighs too much for the bird's wings ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Extinct Animals
This page features lists of species and organisms that have become extinct. The reasons for extinction range from natural occurrences, such as shifts in the Earth's ecosystem or natural disasters, to human influences on nature by the overuse of natural resources, hunting and destruction of natural habitats. In actual theoretical practice, a species not definitely located in the wild in the last 50 years of current time is textually called "extinct". Plants * List of recently extinct plants Animals By region * List of African animals extinct in the Holocene ** List of Madagascar and Indian Ocean Island animals extinct in the Holocene ** List of Macaronesian animals extinct in the Holocene ** 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 Corsica, Sardinia, and Sicily animals e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Fossil Bird Genera
Birds evolved from certain feathered theropod dinosaurs, and there is no real dividing line between birds and non-avian dinosaurs except that some of the former survived the Cretaceous–Paleogene extinction event while the latter did not. For the purposes of this article, a 'bird' is considered to be any member of the clade Avialae.Sereno (2005) Some dinosaur groups which may or may not be true birds are listed below under Proto-birds. This page contains a listing of prehistoric bird taxa only known from completely fossilized specimens. These extinctions took place before the Late Quaternary and thus took place in the absence of significant human interference. While the earliest hominids had been eating birds and especially their eggs, human population and technology was simply insufficient to seriously affect healthy bird populations until the Upper Paleolithic Revolution. Rather, reasons for the extinctions listed here are stochastic abiotic events such as bolide impacts, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Extinct Bird Species Since 1500
About 216 species of birds have become Extinction, extinct since 1500, with increasing extinction rates due to human-caused influences such as Habitat destruction, habitat loss, the introduction of invasive species, and climate change. Currently there are approximately 10,000 living species of birds, with over 1,480 at risk of extinction and 223 critically endangered. Island species in general, and flightless island species in particular, are most at risk. The situation is exemplified by Hawaii, where 30% of all known recently extinct bird Taxon, taxa originally lived, and Guam, which lost over 60% of its native bird taxa in the decades following the introduction of the brown tree snake (''Boiga irregularis''). The disproportionate number of extinctions in Rallidae, rails reflects the tendency of that family to lose the ability to fly when geographically isolated. Even more rails became extinct before they could be described by scientists. The extinction dates given below are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ornimegalonyx
The giant Cuban owl or giant cursorial owl (''Ornimegalonyx'') is an extinct genus of giant owl that measured in height. It is closely related to the many species of living owls of the genus ''Strix (genus), Strix''.Feduccia, Alan (1996) "The Origin and Evolution of Birds" Yale University Press It was a flightless or nearly flightless bird and it is believed to be the largest owl that ever existed. It lived on the island of Cuba. The first fossil specimen was mistakenly described as a bird in the family Phorusrhacidae, in part because the bones were so large. In 1961, Pierce Brodkorb reviewed the findings and identified them to have belonged to an owl. Remains have been found in cave deposits from the Late Pleistocene period (126,000 to 11,700 years ago). Taxonomy In the past, three additional species of ''Ornimegalonyx'' besides ''O. oteroi'' were regarded as valid. All were described in 1982 and include: *''Ornimegalonyx minor'' Arredondo, 1982 in paleontology, 1982Arredondo, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tyto Pollens
''Tyto pollens'' is an extinct giant owl which lived in the Bahamas during the last Ice Age. Description It is only known from the partial remains of three individuals which have been collected on the islands of Little Exuma (the site was misidentified as on Great Exuma in the original literature) and New Providence. Alexander Wetmore initially described the species from fossils of a single individual from Little Exuma site which are the holotype: a complete coracoid, a proximal end of the ulna, a major metacarpal lacking the proximal end and the complete femur. The femur is 81.2mm in length. Both palaeontological sites are from before the arrival of humans (the Lucayans) to the islands. 18,000 years ago, the sea level was 120 metres lower than today and the Bahamas existed as at least five major islands, with a land mass over 10 times the modern size. Both dig sites would have been part of the same island. The fossil assembly of the period indicates that the Bahamas were much ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
O‘ahu Stilt-owl
Oahu (, , sometimes written Oahu) is the third-largest and most populated island of the Hawaiian Islands and of the U.S. state of Hawaii. The state capital, Honolulu, is on Oahu's southeast coast. The island of Oahu and the uninhabited Northwestern Hawaiian Islands constitute the City and County of Honolulu. In 2021, Oahu had a population of 995,638, up from 953,207 in 2010 (approximately 70% of the total 1,455,271 population of the Hawaiian Islands, with approximately 81% of those living in or near the Honolulu urban area). Oahu is long and across. Its shoreline is long. Including small associated islands such as Ford Island plus those in Kāneohe Bay and off the eastern (windward) coast, its area is , making it the 20th-largest island in the United States. Well-known features of Oahu include Waikīkī, Pearl Harbor, Diamond Head, Hanauma Bay, Kāneohe Bay, Kailua Bay, and the North Shore. Name The Island of Oahu is often nicknamed (or translated as) "The Gathering ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Moloka‘i Stilt-owl
Molokai or Molokai ( or ; Molokaʻi dialect: Morotaʻi ) is the fifth most populated of the eight major islands that make up the Hawaiian Islands archipelago in the middle of the Pacific Ocean. It is 38 by 10 miles (61 by 16 km) at its greatest length and width with a usable land area of , making it the fifth-largest in size of the main Hawaiian Islands and the 27th largest island in the United States. It lies southeast of Oʻahu across the wide Kaʻiwi Channel and north of Lānaʻi, separated from it by the Kalohi Channel. The island's agrarian economy has been driven primarily by cattle ranching, pineapple production, sugarcane production and small-scale farming. Tourism comprises a small fraction of the island's economy, and much of the infrastructure related to tourism was closed and barricaded in the early 2000s when the primary landowner, Molokai Ranch, ceased operations due to substantial revenue losses. In Kalawao County, on the Kalaupapa Peninsula on the north ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
