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Amietia Ruwenzorica
''Amietia ruwenzorica'' (Ruwenzori Range frog or Ruwenzori river frog) is a species of frog in the family Pyxicephalidae. It is found in the eastern Democratic Republic of the Congo and western Uganda, including the eponymous Rwenzori Mountains on the Uganda/DRC border as well as Kabobo Plateau and Itombwe Mountains in DRC. Description Adult males can grow to and adult females to in snout–vent length. The toes are partially webbed. Skin is smooth in females and spiny in males. The supratympanic fold is nearly straight. The dorsolateral ridges are narrow and distinct. The dorsum is pale tan with irregular small dark brown marks. The dorsolateral folds are marked by narrow longitudinal marks. The nostril is surrounded by a dark spot that extends as a thin line to the eye, encloses the dark tympanum, and finally tapers to the arm insertion. The limbs have narrow dark crossbars. The ventral surfaces are white to yellow; brown mottling is sometimes present. A tadpole in Gosner ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Raymond Laurent
Raymond Ferdinand Louis-Philippe Laurent (16 May 1917 – 3 February 2005) was a Belgian herpetologist, who specialized in African and South American amphibians and reptiles. He published more than 200 scientific articles and book chapters. Several species have been named after him, most recently ''Phymaturus, Phymaturus laurenti'' in 2010. Additional species of reptiles named in his honor include ''Chironius laurenti'', ''Liolaemus, Liolaemus laurenti'', and ''Mehelya, Mehelya laurenti''.Beolens, Bo; Watkins, Michael; Grayson, Michael (2011). ''The Eponym Dictionary of Reptiles''. Baltimore: Johns Hopkins University Press. xiii + 296 pp. . ("Laurent", p. 152). References Further reading * ''(First page freely available online, remainder available to subscribers only)''. 1917 births 2005 deaths Belgian herpetologists 20th-century Belgian zoologists {{zoologist-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Agricultural Expansion
Agricultural expansion describes the growth of agricultural land (arable land, pastures, etc.) especially in the 20th and 21st centuries. The agricultural expansion is often explained as a direct consequence of the global increase in food and energy requirements due to continuing population growth (both which in turn have been attributed to agricultural expansion itself), with an estimated expectation of 10 to 11 billion humans on Earth by end of this century. It is foreseen that most of the world's non-agrarian ecosystems (terrestrial and aquatic) will be affected adversely, from habitat loss, land degradation, overexploitation, and other problems. The intensified food (and biofuel) production will in particular affect the tropical regions. Most modern agriculture relies on intensive methods. Further expansion of the predominant farming types that rest on a small number of highly productive crops has led to a significant loss of biodiversity on a global scale already. More ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amphibians Described In 1972
Amphibians are four-limbed and ectothermic vertebrates of the class Amphibia. All living amphibians belong to the group Lissamphibia. They inhabit a wide variety of habitats, with most species living within terrestrial, fossorial, arboreal or freshwater aquatic ecosystems. Thus amphibians typically start out as larvae living in water, but some species have developed behavioural adaptations to bypass this. The young generally undergo metamorphosis from larva with gills to an adult air-breathing form with lungs. Amphibians use their skin as a secondary respiratory surface and some small terrestrial salamanders and frogs lack lungs and rely entirely on their skin. They are superficially similar to reptiles like lizards but, along with mammals and birds, reptiles are amniotes and do not require water bodies in which to breed. With their complex reproductive needs and permeable skins, amphibians are often ecological indicators; in recent decades there has been a dramatic decline ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amphibians Of Uganda
Amphibians are four-limbed and ectothermic vertebrates of the class Amphibia. All living amphibians belong to the group Lissamphibia. They inhabit a wide variety of habitats, with most species living within terrestrial, fossorial, arboreal or freshwater aquatic ecosystems. Thus amphibians typically start out as larvae living in water, but some species have developed behavioural adaptations to bypass this. The young generally undergo metamorphosis from larva with gills to an adult air-breathing form with lungs. Amphibians use their skin as a secondary respiratory surface and some small terrestrial salamanders and frogs lack lungs and rely entirely on their skin. They are superficially similar to reptiles like lizards but, along with mammals and birds, reptiles are amniotes and do not require water bodies in which to breed. With their complex reproductive needs and permeable skins, amphibians are often ecological indicators; in recent decades there has been a dramatic decline ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amphibians Of The Democratic Republic Of The Congo
Amphibians are four-limbed and ectothermic vertebrates of the class Amphibia. All living amphibians belong to the group Lissamphibia. They inhabit a wide variety of habitats, with most species living within terrestrial, fossorial, arboreal or freshwater aquatic ecosystems. Thus amphibians typically start out as larvae living in water, but some species have developed behavioural adaptations to bypass this. The young generally undergo metamorphosis from larva with gills to an adult air-breathing form with lungs. Amphibians use their skin as a secondary respiratory surface and some small terrestrial salamanders and frogs lack lungs and rely entirely on their skin. They are superficially similar to reptiles like lizards but, along with mammals and birds, reptiles are amniotes and do not require water bodies in which to breed. With their complex reproductive needs and permeable skins, amphibians are often ecological indicators; in recent decades there has been a dramatic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Frogs Of Africa
The fauna of Africa, in its broader sense, is all the animals living in Africa and its surrounding seas and islands. The more characteristic African fauna is found in the Afrotropical realm. Lying almost entirely within the tropics, and equally to north and south of the equator creates favourable conditions for rich wildlife. Africa is home to many of the world's most famous fauna in human culture such as lions‚ rhinos‚ cheetahs‚ giraffes‚ antelope, hippos, leopards, zebras‚ and African elephants among many others. Origins and history of African fauna Whereas the earliest traces of life in fossil record of Africa date back to the earliest times, the formation of African fauna as we know it today, began with the splitting up of the Gondwana supercontinent in the mid-Mesozoic era. After that, four to six faunal assemblages, the so-called African Faunal Strata (AFSs) can be distinguished. The isolation of Africa was broken intermittently by discontinuous "filter routes" tha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amietia
''Amietia'' is a genus of frogs, commonly known as large-mouthed frogs or river frogs, in the family Pyxicephalidae. They are endemic to central and southern Africa. Formerly, the genus was named ''Afrana'' and was placed in the family Ranidae. Etymology The generic name, ''Amietia'', is in honor of French herpetologist Jean-Louis Amiet. Species The following species are recognised in the genus ''Amietia'': * ''Amietia angolensis'' (Bocage, 1866), Angola river frog, common river frog * ''Amietia chapini'' (Noble, 1924) * ''Amietia delalandii'' (Duméril and Bibron, 1841) * ''Amietia desaegeri'' (Laurent, 1972) * ''Amietia fuscigula'' ( A.M.C. Duméril and Bibron, 1841), Cape river frog * '' Amietia hymenopus'' ( Boulenger, 1920) * ''Amietia inyangae'' (Poynton, 1966), Inyangani river frog * ''Amietia johnstoni'' ( Günther, 1894), Johnston's river frog * ''Amietia moyerorum'' (Channing, Dehling, Lötters, and Ernst, 2016) * ''Amietia nutti'' (Boulenger, 1896) * ''Amietia poyn ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rwenzori Mountains National Park
Rwenzori Mountains National Park is a Ugandan national park and UNESCO World Heritage Site located in the Rwenzori Mountains. Almost in size, the park has Africa's third highest mountain peak and many waterfalls, lakes, and glaciers. The park is known for its beautiful plant life. History Rwenzori Mountains National Park was established in 1991. It was designated a UNESCO World Heritage Site in 1994 because of its outstanding natural beauty. Rebel militias occupied the Rwenzori Mountains from 1997 to June 2001. The park was inscribed on UNESCO's List of World Heritage in Danger between 1999 and 2004 because of insecurity and a lack of resources in the park. Geography Rwenzori Mountains National Park is located in south-western Uganda on the east side of the western (Albertine) African rift valley. It lies along Uganda's border with the Democratic Republic of the Congo (DRC) and borders the DRC's Virunga National Park, also a UNESCO World Heritage Site, for . It is situated in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Itombwe Nature Reserve
The Itombwe Nature Reserve is a protected area in the Itombwe Mountains of the eastern Democratic Republic of the Congo. The reserve covers . It is part of a Lion Conservation Unit. The reserve is home to the critically endangered eastern lowland gorilla The eastern lowland gorilla (''Gorilla beringei graueri'') or Grauer's gorilla is a Critically Endangered subspecies of eastern gorilla endemic to the mountainous forests of eastern Democratic Republic of the Congo. Important populations of ... (''Gorilla beringei graueri''). The national government declared the reserve in 2006, but its boundaries and the uses permitted within the park were not defined in the declaration. After consultations with local people, the boundaries and use zones within the park were formalized in June 2016. The park is divided into three zones: a conservation zone for wildlife with no human use; a multiple-use zone which allows limited human use and sustainable resource extraction; and a develo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Virunga National Park
, iucn_category = II , iucn_ref = , location = Democratic Republic of the Congo , map = Democratic Republic of the Congo , relief = 1 , coordinates = , area = , established = , nearest_city = Goma , photo =Virunga National Park-107997.jpg , photo_caption = , governing_body = Institut Congolais pour la Conservation de la Nature , website = , administrator =Emmanuel de Merode , embedded1 = , embedded2 = , visitation_num = , visitation_year = Virunga National Park is a national park in the Albertine Rift Valley in the eastern part of the Democratic Republic of the Congo. It was created in 1925. In elevation, it ranges from in the Semliki River valley to in the Rwenzori Mountains. From north to south it extends approximately , largely along the international borders with Uganda and Rwanda in the east. It covers an area of . Two active volcanoes are located in the park, Mount Nyiragongo and Nyamuragira. They have significantly shaped the national park's dive ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Artisanal Mining
An artisanal miner or small-scale miner (ASM) is a subsistence miner who is not officially employed by a mining company, but works independently, mining minerals using their own resources, usually by hand. Small-scale mining includes enterprises or individuals that employ workers for mining, but generally still using manually-intensive methods, working with hand tools. Artisanal miners often undertake the activity of mining seasonally – for example crops are planted in the rainy season, and mining is pursued in the dry season. However, they also frequently travel to mining areas and work year-round. There are four broad types of ASM: permanent artisanal mining, seasonal (annually migrating during idle agriculture periods), rush-type (massive migration, pulled often by commodity price jumps), and shock-push (poverty-drive, following conflict or natural disasters). ASM is an important socio-economic sector for the rural poor in many developing nations, many of whom have few ot ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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