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Canavalia Molokaiensis
''Canavalia molokaiensis'', commonly known as the Molokai Jack-bean or puakauhi, is a rare species flowering plant in the legume family, Fabaceae, that is endemic to the island of Molokai in Hawaii. This and other Hawaiian ''Canavalia'' are known there as ''ʻāwikiwiki''. The plant is a vine with red-purple pealike flowers. It inhabits exposed, steep cliffs in dry and mesic forests that are dominated by ōhia lehua (''Metrosideros polymorpha'') and aalii ('' Dodonaea viscosa'') at elevations of . Associated plants include āhinahina ('' Artemisia'' spp.), akoko (''Euphorbia'' spp.), pilo ('' Coprosma'' spp.), pūkiawe (''Styphelia tameiameiae''), and ākia (''Wikstroemia'' spp.). This rare plant is threatened by habitat destruction Habitat destruction (also termed habitat loss and habitat reduction) is the process by which a natural habitat becomes incapable of supporting its native species. The organisms that previously inhabited the site are displaced or dead, thereby ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Plant
Plants are predominantly Photosynthesis, photosynthetic eukaryotes of the Kingdom (biology), kingdom Plantae. Historically, the plant kingdom encompassed all living things that were not animals, and included algae and fungi; however, all current definitions of Plantae exclude the fungi and some algae, as well as the prokaryotes (the archaea and bacteria). By one definition, plants form the clade Viridiplantae (Latin name for "green plants") which is sister of the Glaucophyte, Glaucophyta, and consists of the green algae and Embryophyte, Embryophyta (land plants). The latter includes the flowering plants, conifers and other gymnosperms, ferns and Fern ally, their allies, hornworts, liverworts, and mosses. Most plants are multicellular organisms. Green plants obtain most of their energy from sunlight via photosynthesis by primary chloroplasts that are derived from endosymbiosis with cyanobacteria. Their chloroplasts contain chlorophylls a and b, which gives them their green colo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hawaiian Tropical Rainforests
The Hawaiian tropical rainforests are a tropical moist broadleaf forest ecoregion in the Hawaiian Islands. They cover an area of in the windward lowlands and montane regions of the islands. Coastal mesic forests are found at elevations from sea level to . Mixed mesic forests occur at elevations of , while wet forests are found from . Moist bogs and shrublands exist on montane plateaus and depressions. For the 28 million years of existence of the Hawaiian Islands, they have been isolated from the rest of the world by vast stretches of the Pacific Ocean, and this isolation has resulted in the evolution of an incredible diversity of endemic species, including fungi, mosses, snails, birds, and other wildlife. In the lush, moist forests high in the mountains, trees are draped with vines, orchids, ferns, and mosses. This ecoregion includes one of the world's wettest places, the slopes of Mount Waialeale, which average of rainfall per year. Coastal mesic forests Coastal mesic for ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Endemic Flora Of Hawaii
Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found elsewhere. For example, the Cape sugarbird is found exclusively in southwestern South Africa and is therefore said to be ''endemic'' to that particular part of the world. An endemic species can be also be referred to as an ''endemism'' or in scientific literature as an ''endemite''. For example ''Cytisus aeolicus'' is an endemite of the Italian flora. ''Adzharia renschi'' was once believed to be an endemite of the Caucasus, but it was later discovered to be a non-indigenous species from South America belonging to a different genus. The extreme opposite of an endemic species is one with a cosmopolitan distribution, having a global or widespread range. A rare alternative term for a species that is endemic is "precinctive", which applies to s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Endangered Species
An endangered species is a species that is very likely to become extinct in the near future, either worldwide or in a particular political jurisdiction. Endangered species may be at risk due to factors such as habitat loss, poaching and invasive species. The International Union for Conservation of Nature (IUCN) Red List lists the global conservation status of many species, and various other agencies assess the status of species within particular areas. Many nations have laws that protect conservation-reliant species which, for example, forbid hunting, restrict land development, or create protected areas. Some endangered species are the target of extensive conservation efforts such as captive breeding and habitat restoration. Human activity is a significant cause in causing some species to become endangered. Conservation status The conservation status of a species indicates the likelihood that it will become extinct. Multiple factors are considered when assess ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Introduced Species
An introduced species, alien species, exotic species, adventive species, immigrant species, foreign species, non-indigenous species, or non-native species is a species living outside its native distributional range, but which has arrived there by human activity, directly or indirectly, and either deliberately or accidentally. Non-native species can have various effects on the local ecosystem. Introduced species that become established and spread beyond the place of introduction are considered naturalized. The process of human-caused introduction is distinguished from biological colonization, in which species spread to new areas through "natural" (non-human) means such as storms and rafting. The Latin expression neobiota captures the characteristic that these species are ''new'' biota to their environment in terms of established biological network (e.g. food web) relationships. Neobiota can further be divided into neozoa (also: neozoons, sing. neozoon, i.e. animals) and n ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Habitat Fragmentation
Habitat fragmentation describes the emergence of discontinuities (fragmentation) in an organism's preferred environment (habitat), causing population fragmentation and ecosystem decay. Causes of habitat fragmentation include geological processes that slowly alter the layout of the physical environment (suspected of being one of the major causes of speciation), and human activity such as land conversion, which can alter the environment much faster and causes the extinction of many species. More specifically, habitat fragmentation is a process by which large and contiguous habitats get divided into smaller, isolated patches of habitats. Definition The term habitat fragmentation includes five discrete phenomena: * Reduction in the total area of the habitat * Decrease of the interior: edge ratio * Isolation of one habitat fragment from other areas of habitat * Breaking up of one patch of habitat into several smaller patches * Decrease in the average size of each patch of hab ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Habitat Destruction
Habitat destruction (also termed habitat loss and habitat reduction) is the process by which a natural habitat becomes incapable of supporting its native species. The organisms that previously inhabited the site are displaced or dead, thereby reducing biodiversity and species abundance. Habitat destruction is the leading cause of biodiversity loss. Fragmentation and loss of habitat have become one of the most important topics of research in ecology as they are major threats to the survival of endangered species. Activities such as harvesting natural resources, industrial production and urbanization are human contributions to habitat destruction. Pressure from agriculture is the principal human cause. Some others include mining, logging, trawling, and urban sprawl. Habitat destruction is currently considered the primary cause of species extinction worldwide. Environmental factors can contribute to habitat destruction more indirectly. Geological processes, climate change, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wikstroemia
''Wikstroemia'' is a genus of 55-70 species of flowering shrubs and small trees in the mezereon family, Thymelaeaceae. Hawaiian species are known by the common name ‘ākia. Medicinal uses ''Wikstroemia indica'' () is one of the 50 fundamental herbs used in traditional Chinese medicine. Paper making The bark fibres of several species of ''Wikstroemia'' are used to make paper. Species *''Wikstroemia albiflora'' *''Wikstroemia alternifolia'' *'' Wikstroemia angustifolia'' *''Wikstroemia australis'' – Norfolk Island *''Wikstroemia balansae'' *''Wikstroemia bicornuta'' Hillebr. – alpine false ohelo ( Lānai and Maui, Hawaii) *''Wikstroemia chuii'' *''Wikstroemia coriacea'' Sol. ex Seem. *''Wikstroemia elliptica'' *''Wikstroemia forbesii'' Skottsb. – Molokai false ohelo (Molokai, Hawaii) *''Wikstroemia fruticosa'' *''Wikstroemia furcata'' (Hillebr.) Rock – forest false ohelo (Kauai, Hawaii) *'' Wikstroemia ganpi'' *''Wikstroemia gracilis'' *''Wikstroemia hainanensis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Styphelia Tameiameiae
''Leptecophylla tameiameiae'', known as or in the Hawaiian language, is a species of flowering plant that is native to the Hawaiian and Marquesas Islands. The specific epithet honors King Kamehameha I, who formed the Kingdom of Hawaii. It grows as a tree up to tall in forests and as a shrub in height elsewhere. Its small needle-like leaves are whitish underneath, dark green above. The round berries range in color from white through shades of pink to red. ''Pūkiawe'' is found in a variety of habitats in Hawaii at elevations of , including mixed mesic forests, wet forests, bogs, and alpine shrublands. Ecology is a hardy, adaptive, and morphologically variable plant that occupies a variety of ecosystems, from dry forest up to alpine bogs and shrublands. Despite being common, it is difficult to propagate, taking months to years for seeds to germinate and growing very slowly. The and other birds eat the berries of this shrub and thus distribute it. Human Uses Native ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Styphelia
''Styphelia'' is a genus of shrubs in the family Ericaceae, native from Indo-China through the Pacific to Australia. Most have minute or small leaves with a sharp tip, single, tube-shaped flowers arranged in leaf axils and with the ends of the petals rolled back with hairs in the inside of the tube. Description Plants in the genus ''Styphelia'' are usually erect or spreading shrubs that have egg-shaped, elliptical or oblong, more or less sessile leaves with many fine, almost parallel veins and a sharp point on the tip. The flowers are usually arranged singly in leaf axils with small bracts grading to larger bracteoles at the base and five, usually coloured sepals. The petals are fused to form a cylindrical tube with their tips rolled back. The inside of the petal tube is hairy and the five stamens and thread-like style extend beyond the end of the tube. The fruit is a drupe with a dry or slightly fleshy mesocarp and a hard endocarp. Taxonomy and naming The genus ''Styphel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coprosma
''Coprosma'' is a genus of flowering plants in the family Rubiaceae. It is found in New Zealand, Hawaiian Islands, Borneo, Java, New Guinea, islands of the Pacific Ocean to Australia and the Juan Fernández Islands. Description The name ''Coprosma'' means "smelling like dung" and refers to the smell (methanethiol) given out by the crushed leaves of a few species. Many species are small shrubs with tiny evergreen leaves, but a few are small trees and have much larger leaves. The flowers have insignificant petals and are wind-pollinated, with long anthers and stigmas. Most species are dioecious, but some (particularly those native to New Zealand) species can sometimes have individuals with perfect flowers. Natural hybrids are common. The fruit is a non-poisonous juicy berry, most often bright orange (but can be dark red or even light blue), containing two small seeds. The orange fruit of the larger species were eaten by Māori children, and are also popular with birds. It is sai ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Euphorbia
''Euphorbia'' is a very large and diverse genus of flowering plants, commonly called spurge, in the family Euphorbiaceae. "Euphorbia" is sometimes used in ordinary English to collectively refer to all members of Euphorbiaceae (in deference to the type genus), not just to members of the genus. Euphorbias range from tiny annual plants to large and long-lived trees. The genus has roughly 2,000 members, making it one of the largest genera of flowering plants. It also has one of the largest ranges of chromosome counts, along with ''Rumex'' and ''Senecio''. '' Euphorbia antiquorum'' is the type species for the genus ''Euphorbia''. It was first described by Carl Linnaeus in 1753 in ''Species Plantarum''. Some euphorbias are widely available commercially, such as poinsettias at Christmas. Some are commonly cultivated as ornamentals, or collected and highly valued for the aesthetic appearance of their unique floral structures, such as the crown of thorns plant ('' Euphorbia milii'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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