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Swynnertonia Swynnertoni
Swynnerton's robin (''Swynnertonia swynnertoni'') is a species of bird in the family Muscicapidae. It is monotypic within the genus ''Swynnertonia''. The common and Latin names commemorate the entomologist Charles Swynnerton. Range and habitat It is found in Tanzania, Mozambique, and Zimbabwe. Its natural habitats are subtropical or tropical moist lowland forests and subtropical or tropical moist montane forests. It is threatened by habitat loss. In Zimbabwe this species is found in relict montane forests in the Eastern Highlands. It is protected in the Bunga and Chirinda Forest Botanical Reserves (also possibly in the Chimanimani and Nyanga National Parks). Within the forests it occurs at high population densities and almost always nests in the small indigenous '' Dracaena'' plants. Description It is superficially similar to the larger White-starred robin, but has a white crescent on the upper breast, which is bordered below with a black line, and its grey tail lacks yellow wi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Austin Roberts (zoologist)
Austin Roberts (3 January 1883 – 5 May 1948) was a South African zoologist. He is best known for his ''Birds of South Africa'', first published in 1940. He also studied the mammalian fauna of the region: his work ''The mammals of South Africa'' was published posthumously in 1951. The 7th edition of ''Roberts' Birds of Southern Africa'' which appeared in 2005, is the standard work on the region's birds. Biography Roberts, son of Alfred Roberts (church minister) and Marianne Fannin (naturalist and flower artist), was born in Pretoria and grew up in Potchefstroom, South Africa. He gained much of his early knowledge of zoology from Thomas Ayres (1828–1913), one of South Africa's first amateur ornithologists. Ayres taught Roberts to skin birds and small mammals as well as the importance of keeping accurate records on every specimen. He also encouraged Roberts to study birds systematically. Roberts worked as a clerk in the Potchefstroom branch of Standard Bank from 1901 to 1903 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Forest
A forest is an area of land dominated by trees. Hundreds of definitions of forest are used throughout the world, incorporating factors such as tree density, tree height, land use, legal standing, and ecological function. The United Nations' Food and Agriculture Organization (FAO) defines a forest as, "Land spanning more than 0.5 hectares with trees higher than 5 meters and a canopy cover of more than 10 percent, or trees able to reach these thresholds ''in situ''. It does not include land that is predominantly under agricultural or urban use." Using this definition, '' Global Forest Resources Assessment 2020'' (FRA 2020) found that forests covered , or approximately 31 percent of the world's land area in 2020. Forests are the predominant terrestrial ecosystem of Earth, and are found around the globe. More than half of the world's forests are found in only five countries (Brazil, Canada, China, Russia, and the United States). The largest share of forests (45 percent) are in th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Birds Of Southern Africa
Birds are a group of warm-blooded vertebrates constituting the class Aves (), characterised by feathers, toothless beaked jaws, the laying of hard-shelled eggs, a high metabolic rate, a four-chambered heart, and a strong yet lightweight skeleton. Birds live worldwide and range in size from the bee hummingbird to the ostrich. There are about ten thousand living species, more than half of which are passerine, or "perching" birds. Birds have whose development varies according to species; the only known groups without wings are the extinct moa and elephant birds. Wings, which are modified forelimbs, gave birds the ability to fly, although further evolution has led to the loss of flight in some birds, including ratites, penguins, and diverse endemic island species. The digestive and respiratory systems of birds are also uniquely adapted for flight. Some bird species of aquatic environments, particularly seabirds and some waterbirds, have further evolved for swimming. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
White-starred Robin
The white-starred robin (''Pogonocichla stellata'') is a species of bird in the Old World flycatcher and chat family Muscicapidae. It is also sometimes more simply called the starred robin. It is monotypic within the genus ''Pogonocichla''. There are around twelve subspecies. The species is found in East and southern Africa. It is a forest species, occurring in montane forest in the north of its range but closer to sea level further south. This is a brightly coloured robin with a bright yellow breast and belly, a slate coloured head with spots on the eyes and throat and blueish wings. The white-starred robin gives a range of calls that vary geographically. The diet is dominated by insects, although some fruit is taken as well. It is a territorial and seasonal breeder that lays up to three eggs in a domed nest. The generic name ''Pogoncichla'' is derived from the Greek ''pogon'' for beard, a reference to the white spots on the throat and face, and ''kikhle'' for thrush. Similarly ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dracaena Fragrans
''Dracaena fragrans'' (cornstalk dracaena), is a flowering plant species that is native throughout tropical Africa, from Sudan south to Mozambique, west to Côte d'Ivoire and southwest to Angola, growing in upland regions at altitude.JSTOR Plant Science''Dracaena fragrans''/ref> It is also known as striped dracaena, compact dracaena, and corn plant. Description ''Dracaena fragrans'' is a slow growing shrub, usually multistemmed at the base, mature specimens reaching or more tall with a narrow crown of usually slender erect branches. Stems may reach up to diameter on old plants; in forest habitats they may become horizontal with erect side branches. Young plants have a single unbranched stem with a rosette of leaves until the growing tip flowers or is damaged, after which it branches, producing two or more new stems; thereafter, branching increases with subsequent flowering episodes.Huxley, A., ed. (1992). ''New RHS Dictionary of Gardening'' 2: 96. Macmillan . The leaves are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chirinda Forest Botanical Reserve
The Chirinda Forest Botanical Reserve is situated on the slopes of Mount Selinda, south of Chipinge, in the Chipinge Highlands of Manicaland, Zimbabwe, and is administered by the Forestry Commission. The reserve is situated at between in altitude, and receives some to of annual rainfall. of its higher levels, above , is covered by moist evergreen forest, specifically Zanzibar-Inhambane transitional rain forest, of which it represents the southernmost occurrence. The headwaters of three streams, namely the Zona, Chinyika and Musangazi, drain the two broad highlands which it encloses. The boundaries of the reserve are not strictly enforced, so that cattle grazing and plant harvesting are ongoing. The reserve is surrounded by communal settlements, commercial timber plantations (eucalypts and pines) and small-scale commercial farming units. The naturalist Charles Swynnerton was appointed manager of the nearby Gungunyana farm in 1900, and a number of plant, bird and insect names ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bunga Forest Botanical Reserve
The Bunga Forest Botanical Reserve conserves mist-forest along the southern slopes of the Bvumba Mountains in the Eastern Highlands, Zimbabwe. It is the largest conserved area in the Bvumba highlands, and can be accessed from various points along the circuitous Burma Valley Road. The forest was logged for timber up to the mid 20th century. Flora '' Syzygium guineense'' predominates the primary forest, and ''Dracaena fragrans'' is common in its shaded undershrub. Pioneer plants include '' Aphloia theiformis'', ''Macaranga mellifera'' and ''Maesa lanceolata''. ''Albizia gummifera'' and '' A. schimperiana'' dominate the lower slopes and western rain shadow. Bracken-briar on the forest verges is populated by ''Pteridium aquilinum'', ''Smilax anceps'', ''Buddleja salviifolia'', besides ''Vangueria'' and ''Vernonia'' species. Fauna Marshall's pygmy chameleon is present, as is several range-restricted birds, including Swynnerton's robin, Stripe-cheeked greenbul, Chirinda apalis and Whi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eastern Highlands
:''"Eastern Highlands" also refers to Eastern Highlands Province in Papua New Guinea, and part of the Great Dividing Range, Australia.'' The Eastern Highlands, also known as the Manica Highlands, is a mountain range on the border of Zimbabwe and Mozambique. The Eastern Highlands extend north and south for about through Zimbabwe's Manicaland Province and Mozambique's Manica Province. The Highlands are home to the Eastern Zimbabwe montane forest-grassland mosaic ecoregion. The ecoregion includes the portion of the highlands above 1000 meters elevation, including the Inyangani Mountains, Bvumba Mountains, Chimanimani Mountains, Chipinge Uplands, and the isolated Mount Gorongosa further east in Mozambique. The Southern miombo woodlands ecoregion lies at lower elevations east and west of the highlands. The highlands have a cooler, moister climate than the surrounding lowlands, which support distinct communities of plants and animals. The ecoregion is home to several plant commun ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Habitat Loss
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, introdu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Montane Forest
Montane ecosystems are found on the slopes of mountains. The alpine climate in these regions strongly affects the ecosystem because temperatures fall as elevation increases, causing the ecosystem to stratify. This stratification is a crucial factor in shaping plant community, biodiversity, metabolic processes and ecosystem dynamics for montane ecosystems. Dense montane forests are common at moderate elevations, due to moderate temperatures and high rainfall. At higher elevations, the climate is harsher, with lower temperatures and higher winds, preventing the growth of trees and causing the plant community to transition to montane grasslands, shrublands or alpine tundra. Due to the unique climate conditions of montane ecosystems, they contain increased numbers of endemic species. Montane ecosystems also exhibit variation in ecosystem services, which include carbon storage and water supply. Life zones As elevation increases, the climate becomes cooler, due to a decrease in a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Habitat
In ecology, the term habitat summarises the array of resources, physical and biotic factors that are present in an area, such as to support the survival and reproduction of a particular species. A species habitat can be seen as the physical manifestation of its ecological niche. Thus "habitat" is a species-specific term, fundamentally different from concepts such as environment or vegetation assemblages, for which the term "habitat-type" is more appropriate. The physical factors may include (for example): soil, moisture, range of temperature, and light intensity. Biotic factors will include the availability of food and the presence or absence of predators. Every species has particular habitat requirements, with habitat generalist species able to thrive in a wide array of environmental conditions while habitat specialist species requiring a very limited set of factors to survive. The habitat of a species is not necessarily found in a geographical area, it can be the interior ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
George Ernest Shelley
Captain George Ernest Shelley (15 May 1840 – 29 November 1910) was an English geologist and ornithologist. He was a nephew of the poet Percy Bysshe Shelley. Shelley was educated at the Lycée de Versailles and served a few years in the Grenadier Guards "Shamed be whoever thinks ill of it." , colors = , colors_label = , march = Slow: " Scipio" , mascot = , equipment = , equipment .... His books included ''A Monograph of the Cinnyridae, or Family of Sun Birds'' (1878), ''A Handbook to the Birds of Egypt'' (1872) and ''The Birds of Africa'' (5 volumes, 1896–1912) illustrated by J. G. Keulemans. (with bibliography of publications by G. E. Shelley) References External links * Illustrations appearing in Handbook to the Birds of Egypt 1840 births 1910 deaths English geologists English ornithologists Grenadier Guards officers Place of birth missing ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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