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Black Guineafowl
The black guinea fowl (''Agelastes niger'') is a terrestrial bird of the Numididae (guinea fowl) family found in humid forests in West-Central Africa. It is a medium-sized, black galliforme bird with a bare, orange-pink head and upper neck. As it inhabits dense, potentially inaccessible, regions of equatorial African jungle, little is known of black guinea fowl behaviour or habits. By all accounts, it is a more reclusive, secretive bird when compared to the other, more sociable guinea fowl species; i.e., researchers have been able to successfully observe and document far more information on the confident, gregarious and open grassland-dwelling helmeted guinea fowl (''Numidia meleagris''), or even the more exotic vulturine guinea fowl (''Acryllium vulturinum''). Compared to the black guinea fowl, the aforementioned species (and most guinea fowl) tend to be found in more exposed, dry savanna and arid open forest habitat, and congregate in larger communal flocks. Black guinea fowl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
John Cassin
John Cassin (September 6, 1813 – January 10, 1869) was an American ornithology, ornithologist from Pennsylvania. He worked as curator and vice president at the Philadelphia Academy of Natural Sciences and focused on the systemic classification of the academy's extensive collection of birds. He was one of the founders of the Delaware County Institute of Science and published several books describing 194 new species of birds. Five species of North American birds, a cicada, and a mineral are named in his honor. Early life and education Cassin was born in Upper Providence Township, Delaware County, Pennsylvania, Upper Providence Township, Pennsylvania on September 6, 1813. He was educated at the Westtown School in Westtown Township, Pennsylvania. His great Uncle, John Cassin (naval officer), John Cassin, was a commodore in the U.S. Navy and served in the War of 1812. He served in the Union Army during the American Civil War and was held prisoner in the infamous Confederate Libb ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shoot (botany)
In botany, a plant shoot consists of any plant stem together with its appendages like leaves, lateral buds, flowering stems, and flower buds. The new growth from seed germination that grows upward is a shoot where leaves will develop. In the spring, perennial plant shoots are the new growth that grows from the ground in herbaceous plants or the new stem or flower growth that grows on woody plants. In everyday speech, shoots are often synonymous with stems. Stems, which are an integral component of shoots, provide an axis for buds, fruits, and leaves. Young shoots are often eaten by animals because the natural fiber, fibers in the new growth have not yet completed secondary cell wall development, making the young shoots softer and easier to chew and digest. As shoots grow and age, the cells develop secondary cell walls that have a hard and tough structure. Some plants (e.g. bracken) produce toxins that make their shoots inedible or less palatable. File:Cucumber leaf.jpg, The sh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ehrlichia Ruminantium
Heartwater (also known as cowdriosis, nintas, and ehrlichiosis) is a tick-borne rickettsial disease. The name is derived from the fact that fluid can collect around the heart or in the lungs of infected animals. It is caused by ''Ehrlichia ruminantium'' (formerly ''Cowdria ruminantium'')—an intracellular Gram-negative coccal bacterium (also referred to as ''Rickettsia ruminantium''). The disease is spread by various '' Amblyomma'' ticks, and has a large economic impact on cattle production in affected areas. There are four documented manifestations of the disease, these are acute, peracute, subacute, and a mild form known as heartwater fever. There are reports of zoonotic infections of humans by ''E. ruminantium'', similar to other ''Ehrlichia'' species, such as those that cause human ehrlichiosis. History Heartwater disease was first described in 1838 within the personal journal of Louis Trichardt, a Voortrekker in South Africa. In Trichardt's notes he recorded that a maj ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tropical Rainforest
Tropical rainforests are dense and warm rainforests with high rainfall typically found between 10° north and south of the Equator. They are a subset of the tropical forest biome that occurs roughly within the 28° latitudes (in the torrid zone between the Tropic of Cancer and Tropic of Capricorn). Tropical rainforests are a type of tropical moist broadleaf forest, that includes the more extensive seasonal tropical forests. True rainforests usually occur in tropical rainforest climates where no dry season occurs; all months have an average precipitation of at least . Seasonal tropical forests with tropical monsoon climate, tropical monsoon or tropical savanna climate, savanna climates are sometimes included in the broader definition. Tropical rainforests ecosystems are distinguished by their consistent, high temperatures, exceeding monthly, and substantial annual rainfall. The abundant rainfall results in nutrient-poor, leached soils, which profoundly affect the flora and fau ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Secondary Forest
A secondary forest (or second-growth forest) is a forest or woodland area which has regenerated through largely natural processes after human-caused Disturbance (ecology), disturbances, such as Logging, timber harvest or agriculture clearing, or equivalently disruptive natural phenomena. It is distinguished from an old-growth forest (primary or primeval forest), which has not recently undergone such disruption, and complex early Seral community, seral forest, as well as third-growth forests that result from harvest in second growth forests. Secondary forest regrowing after timber harvest differs from forest Ecological succession, regrowing after natural Disturbance (ecology), disturbances such as Wildfire, fire, insect infestation, or windthrow because the dead trees remain to provide nutrients, structure, and water retention after natural disturbances. Secondary forests are notably different from primary forests in their composition and biodiversity; however, they may still be hel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Old-growth Forest
An old-growth forest or primary forest is a forest that has developed over a long period of time without disturbance. Due to this, old-growth forests exhibit unique ecological features. The Food and Agriculture Organization of the United Nations defines primary forests as naturally regenerated forests of native tree species where there are no clearly visible indications of human activity and the ecological processes are not significantly disturbed. One-third (34 percent) of the world's forests are primary forests. Old-growth features include diverse tree-related structures that provide diverse wildlife habitats that increases the biodiversity of the forested ecosystem. Virgin or first-growth forests are old-growth forests that have never been logged. The concept of diverse tree structure includes multi-layered canopies and canopy gaps, greatly varying tree heights and diameters, and diverse tree species and classes and sizes of woody debris., the world has of primary forest ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Forest Floor
The forest floor, also called detritus or wikt:duff#Noun 2, duff, is the part of a forest ecosystem that mediates between the living, aboveground portion of the forest and the mineral soil, principally composed of dead and decaying plant matter such as rotting wood and shed leaf, leaves. In some countries, like Canada, forest floor refers to L, F and H organic horizons. It hosts a wide variety of decomposers and predators, including invertebrates, fungi, algae, bacteria, and archaea. The forest floor serves as a bridge between the above ground living vegetation and the soil, and thus is a crucial component in nutrient transfer through the biogeochemical cycle. Leaf litter and other plant litter transmits nutrients from plants to the soil. The plant litter of the forest floor (or L horizon) prevents erosion, conserves moisture, and provides nutrients to the entire ecosystem. The F horizon consists of plant material in which decomposition is apparent, but the origins of plant res ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Democratic Republic Of The Congo
The Democratic Republic of the Congo (DRC), also known as the DR Congo, Congo-Kinshasa, or simply the Congo (the last ambiguously also referring to the neighbouring Republic of the Congo), is a country in Central Africa. By land area, it is the List of African countries by area, second-largest country in Africa and the List of countries and dependencies by area, 11th-largest in the world. With a population of around 112 million, the DR Congo is the most populous nominally List of countries and territories where French is an official language, Francophone country in the world. Belgian French, French is the official and most widely spoken language, though there are Languages of the Democratic Republic of the Congo, over 200 indigenous languages. The national capital and largest city is Kinshasa, which is also the economic center. The country is bordered by the Republic of the Congo, the Cabinda Province, Cabinda exclave of Angola, and the South Atlantic Ocean to the west; the Cen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Republic Of The Congo
The Republic of the Congo, also known as Congo-Brazzaville, the Congo Republic or simply the Congo (the last ambiguously also referring to the neighbouring Democratic Republic of the Congo), is a country located on the western coast of Central Africa to the west of the Congo River. It is bordered to the west by Gabon, to the northwest by Cameroon, to the northeast by the Central African Republic, to the southeast by the Democratic Republic of the Congo, to the south by the Angolan exclave of Cabinda Province, Cabinda, and to the southwest by the Atlantic Ocean. The region was dominated by Bantu peoples, Bantu-speaking tribes at least 3,000 years ago, who built trade links leading into the Congo River basin. From the 13th century, the present-day territory was dominated by a confederation led by Vungu which included Kakongo and Ngoyo. Kingdom of Loango, Loango emerged in the 16th century. In the late 19th century France colonised the region and incorporated it into French Equato ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Central African Republic
The Central African Republic (CAR) is a landlocked country in Central Africa. It is bordered by Chad to Central African Republic–Chad border, the north, Sudan to Central African Republic–Sudan border, the northeast, South Sudan to Central African Republic–South Sudan border, the east, the Democratic Republic of the Congo to Central African Republic–Democratic Republic of the Congo border, the south, the Republic of the Congo to Central African Republic–Republic of the Congo border, the southwest, and Cameroon to Cameroon–Central African Republic border, the west. Bangui is the country's capital and largest city, bordering the Democratic Republic of the Congo. The Central African Republic covers a land area of about . As of 2024, it has a population of 5,357,744, consisting of about 80 ethnic groups, and is in the scene of a Central African Republic Civil War, civil war, which has been ongoing since 2012. Having been a Ubangi-Shari, French colony under the name Ubangi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Angola
Angola, officially the Republic of Angola, is a country on the west-Central Africa, central coast of Southern Africa. It is the second-largest Portuguese-speaking world, Portuguese-speaking (Lusophone) country in both total area and List of countries and dependencies by population, population and is the List of African countries by area, seventh-largest country in Africa. It is bordered by Namibia to the south, the Democratic Republic of the Congo to the north, Zambia to the east, and the Atlantic Ocean to the west. Angola has an Enclave and exclave, exclave province, the province of Cabinda Province, Cabinda, that borders the Republic of the Congo and the Democratic Republic of the Congo. The capital and most populous city is Luanda. Angola has been inhabited since the Paleolithic, Paleolithic Age. After the Bantu expansion reached the region, states were formed by the 13th century and organised into confederations. The Kingdom of Kongo ascended to achieve hegemony among the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Equatorial Guinea
Equatorial Guinea, officially the Republic of Equatorial Guinea, is a country on the west coast of Central Africa. It has an area of . Formerly the colony of Spanish Guinea, its post-independence name refers to its location both near the Equator and in the Guinea (region), African region of Guinea. , the country had a population of 1,795,834, over 85% of whom are members of the Fang people, the country's dominant ethnic group. The Bubi people, indigenous to Bioko, are the second largest group at approximately 6.5% of the population. Equatorial Guinea consists of two parts. The mainland region, Río Muni, is bordered by Cameroon to the north and Gabon to the south and east. It has the majority of the population and is the location of Bata, Equatorial Guinea, Bata, Equatorial Guinea's largest city, and Ciudad de la Paz, the country's planned future capital. Río Muni's small offshore islands include Corisco, Elobey Grande, and Elobey Chico. The Islands of Equatorial Guinea, ins ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
