|
Puaiohi
The puaiohi (''Myadestes palmeri''), or small Kauai thrush, is a rare species of songbird in the Thrush (bird), thrush family, Turdidae, that is Endemism, endemic to the Hawaiian island of Kauai, Kauai. It is closely related to the other three endemic Hawaiian thrushes, the Kāmaʻo, kāmao, Olomaʻo, olomao, and ‘Ōma’o, ōmao. It was first collected by Henry Palmer in 1891 at Halemanu around the entrance to the Koke'e State Park, Kōkee State Park. Description The plumage is mostly nondescript, with slaty-brown upperparts and a light gray breast and belly below. Birds have a black bill and pinkish feet. A white eye ring is also fairly prominent and helps distinguish this bird from the other Hawaiian thrushes. Males and females are highly similar in appearance. Juveniles show a pattern transitioning from a spotted whitish-buff above to a scalloped gray-brown below.Collar, N. J. (2005). Puaiohi (''Myadestes palmeri''). Pp 628-629 in: del Hoyo, J., Elliott, A. & Christie, D. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Olomaʻo
The olomao (''Myadestes lanaiensis'') is a small, dark solitaire (bird), solitaire endemic to Maui, Lanai, Lānai and Molokai, Molokai in the Hawaiian Islands. It is listed as Critically Endangered or possibly extinct. The extinct ʻĀmaui, ʻāmaui, either a subspecies of ''M. lanaiensis'' or a distinct species (as ''M. woahensis''), was endemic to Oahu, Oʻahu. Description It grows up to 7 inches in length. The male and female of the species look similar. It is dark brown above and gray below with blackish legs. Call Its song consists of a complex melody of flute-like notes, liquid warbles, and gurgling whistles. The call is a catlike rasp, with an alternate high pitched note similar to a police whistle. Behavior and diet It occurs in densely vegetated gulches, frequenting the understory where it often perches motionless in a hunched posture. Like other native Hawaiian thrushes, it quivers its wings and feeds primarily on fruit and insects. Conservation The olomao ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Myadestes
''Myadestes'' is a genus of Solitaire (bird), solitaires, medium-sized mostly Insectivore, insectivorous birds in the thrush (bird), thrush family, Turdidae. They are found in the Americas and Hawaii, Hawaii, where several island species have become Extinction, extinct. Species in taxonomic order * ''Myadestes occidentalis'' Leonhard Hess Stejneger, Stejneger, 1882 - brown-backed solitaire (Mexico, northern Central America) *''Myadestes unicolor'' Sclater, 1857 - slate-colored solitaire (Mexico, Central America) *''Myadestes townsendi'' John James Audubon, Audubon, 1838 - Townsend's solitaire (North America) *''Myadestes myadestinus'' - Kāmaʻo, kāmao (Kauai, Kauai) (extinct, 1990s) *''Myadestes palmeri'' Walter Rothschild, 2nd Baron Rothschild, Rothschild, 1893 - puaiohi (Kauai, Kauai) *''Myadestes lanaiensis'' Jeffrey A. Wilson, Wilson, 1891 - Olomaʻo, olomao (Oahu, Oahu, Maui, Lanai, Lānai and Molokai, Molokai) (probably extinct, 1980s?) ** ''Myadestes lanaiensis woahens ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Walter Rothschild, 2nd Baron Rothschild
Lionel Walter Rothschild, 2nd Baron Rothschild, Baron de Rothschild, (8 February 1868 – 27 August 1937) was a British banker, politician, zoologist and soldier, who was a member of the Rothschild family. As a Zionist leader, he was presented with the Balfour Declaration, which pledged British support for a Jewish national home in Palestine. Rothschild was the president of the Board of Deputies of British Jews from 1925 to 1926. Early life Walter Rothschild was born in London as the eldest son and heir of Emma Louise von Rothschild and Nathan Rothschild, 1st Baron Rothschild, an immensely wealthy financier of the international Rothschild financial dynasty and the first Jewish peer in England. The eldest of three children, Walter was deemed to have delicate health and was educated at home. As a young man, he travelled in Europe, attending the University of Bonn for a year before entering Magdalene College, Cambridge. In 1889, leaving Cambridge after two years, he was ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cheirodendron Trigynum
''Cheirodendron trigynum'', also known as ''Ōlapa'' or common cheirodendron, is a species of flowering plant in the ginseng family, Araliaceae, that is endemic to Hawaii. It is a medium-sized tree, reaching a height of and a trunk diameter of . ''Ōlapa'' inhabits mixed mesic and wet forests at elevations of on all main islands, where it is an abundant understory tree In botany, a tree is a perennial plant with an elongated stem, or trunk, usually supporting branches and leaves. In some usages, the definition of a tree may be narrower, including only woody plants with secondary growth, plants that are .... References External links * Araliaceae Endemic flora of Hawaii Trees of Hawaii Flora without expected TNC conservation status {{Araliaceae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Endemic Birds Of Hawaii
There are 71 known taxa of birds endemic to the Hawaiian Islands, of which 30 are extinct, 6 possibly extinct and 30 of the remaining 48 species and subspecies are listed as endangered or threatened by the United States Fish and Wildlife Service. Habitat loss and avian disease are thought to have had the greatest effect on endemic bird species in Hawaii. List of species The following is a list of bird species and subspecies endemic to the Hawaiian Islands: Procellariidae * Hawaiian petrel or uau, ''Pterodroma sandwichensis'' * Newell's shearwater or ao, ''Puffinus newelli'' * Bryan's shearwater, ''Puffinus bryani'' ('' P. assimilis'': ) * Bonin petrel, ''Pterodroma hypoleuca'' 99% of the total population breeds on the Northwestern Hawaiian Islands Anatidae * Hawaiian goose or nēnē, ''Branta sandvicensis'' * Hawaiian duck or koloa maoli, ''Anas wyvilliana'' * Laysan duck, ''Anas laysanensis'' Diomedeidae * Laysan albatross, ''Phoebastria immutabilis'' 99.7% o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Inbreeding Depression
Inbreeding depression is the reduced biological fitness which has the potential to result from inbreeding (the breeding of related individuals). Biological fitness refers to an organism's ability to survive and perpetuate its genetic material. Inbreeding depression is often the result of a population bottleneck. In general, the higher the genetic variation or gene pool within a breeding population, the less likely it is to suffer from inbreeding depression, though inbreeding and outbreeding depression can simultaneously occur. Inbreeding depression seems to be present in most groups of organisms, but varies across mating systems. Hermaphroditic species often exhibit lower degrees of inbreeding depression than outcrossing species, as repeated generations of selfing is thought to purge deleterious alleles from populations. For example, the outcrossing nematode (roundworm) ''Caenorhabditis remanei'' has been demonstrated to suffer severely from inbreeding depression, unlike its he ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Invasive Plants
An invasive species otherwise known as an alien is an introduced organism that becomes overpopulated and harms its new environment. Although most introduced species are neutral or beneficial with respect to other species, invasive species adversely affect habitats and bioregions, causing ecological, environmental, and/or economic damage. The term can also be used for native species that become harmful to their native environment after human alterations to its food webfor example the purple sea urchin (''Strongylocentrotus purpuratus'') which has decimated kelp forests along the northern California coast due to overharvesting of its natural predator, the California sea otter (''Enhydra lutris''). Since the 20th century, invasive species have become a serious economic, social, and environmental threat. Invasion of long-established ecosystems by organisms is a natural phenomenon, but human-facilitated introductions have greatly increased the rate, scale, and geographic range of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Avian Malaria
Avian malaria is a parasitic disease of birds, caused by parasite species belonging to the genera ''Plasmodium'' and '' Hemoproteus'' (phylum Apicomplexa, class Haemosporidia, family Plasmoiidae). The disease is transmitted by a dipteran vector including mosquitoes in the case of ''Plasmodium'' parasites and biting midges for ''Hemoproteus.'' The range of symptoms and effects of the parasite on its bird hosts is very wide, from asymptomatic cases to drastic population declines due to the disease, as is the case of the Hawaiian honeycreepers. The diversity of parasites is large, as it is estimated that there are approximately as many parasites as there are species of hosts. Co-speciation and host switching events have contributed to the broad range of hosts that these parasites can infect, causing avian malaria to be a widespread global disease, found everywhere except Antarctica. Cause Avian malaria is most notably caused by ''Plasmodium relictum'', a protist that infects birds i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hurricanes
A tropical cyclone is a rapidly rotating storm system characterized by a low-pressure center, a closed low-level atmospheric circulation, strong winds, and a spiral arrangement of thunderstorms that produce heavy rain and squalls. Depending on its location and strength, a tropical cyclone is referred to by different names, including hurricane (), typhoon (), tropical storm, cyclonic storm, tropical depression, or simply cyclone. A hurricane is a strong tropical cyclone that occurs in the Atlantic Ocean or northeastern Pacific Ocean, and a typhoon occurs in the northwestern Pacific Ocean. In the Indian Ocean, South Pacific, or (rarely) South Atlantic, comparable storms are referred to simply as "tropical cyclones", and such storms in the Indian Ocean can also be called "severe cyclonic storms". "Tropical" refers to the geographical origin of these systems, which form almost exclusively over tropical seas. "Cyclone" refers to their winds moving in a circle, whirling round ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Drought
A drought is defined as drier than normal conditions.Douville, H., K. Raghavan, J. Renwick, R.P. Allan, P.A. Arias, M. Barlow, R. Cerezo-Mota, A. Cherchi, T.Y. Gan, J. Gergis, D. Jiang, A. Khan, W. Pokam Mba, D. Rosenfeld, J. Tierney, and O. Zolina, 2021Water Cycle Changes In Climate Change 2021: The Physical Science Basis. Contribution of Working Group I to the Sixth Assessment Report of the Intergovernmental Panel on Climate Change [Masson-Delmotte, V., P. Zhai, A. Pirani, S.L. Connors, C. Péan, S. Berger, N. Caud, Y. Chen, L. Goldfarb, M.I. Gomis, M. Huang, K. Leitzell, E. Lonnoy, J.B.R. Matthews, T.K. Maycock, T. Waterfield, O. Yelekçi, R. Yu, and B. Zhou (eds.)]. Cambridge University Press, Cambridge, United Kingdom and New York, NY, USA, pp. 1055–1210, doi:10.1017/9781009157896.010. This means that a drought is "a moisture deficit relative to the average water availability at a given location and season". A drought can last for days, months or years. Drought ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fern
A fern (Polypodiopsida or Polypodiophyta ) is a member of a group of vascular plants (plants with xylem and phloem) that reproduce via spores and have neither seeds nor flowers. The polypodiophytes include all living pteridophytes except the lycopods, and differ from mosses and other bryophytes by being vascular, i.e., having specialized tissues that conduct water and nutrients and in having life cycles in which the branched sporophyte is the dominant phase. Ferns have complex leaves called megaphylls, that are more complex than the microphylls of clubmosses. Most ferns are leptosporangiate ferns. They produce coiled fiddleheads that uncoil and expand into fronds. The group includes about 10,560 known extant species. Ferns are defined here in the broad sense, being all of the Polypodiopsida, comprising both the leptosporangiate (Polypodiidae) and eusporangiate ferns, the latter group including horsetails, whisk ferns, marattioid ferns, and ophioglossoid ferns. Ferns first ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Moss
Mosses are small, non-vascular flowerless plants in the taxonomic division Bryophyta (, ) '' sensu stricto''. Bryophyta (''sensu lato'', Schimp. 1879) may also refer to the parent group bryophytes, which comprise liverworts, mosses, and hornworts. Mosses typically form dense green clumps or mats, often in damp or shady locations. The individual plants are usually composed of simple leaves that are generally only one cell thick, attached to a stem that may be branched or unbranched and has only a limited role in conducting water and nutrients. Although some species have conducting tissues, these are generally poorly developed and structurally different from similar tissue found in vascular plants. Mosses do not have seeds and after fertilisation develop sporophytes with unbranched stalks topped with single capsules containing spores. They are typically tall, though some species are much larger. ''Dawsonia'', the tallest moss in the world, can grow to in height. There are a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
