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Anelosimus Dude
''Anelosimus dude'' is a species of spider in the family Theridiidae. It is native to Tanzania, having only been found in the Udzungwa Scarp Forest ReserveIn the publication of the find, Agnarsson and Zhang (2006), this was described as "Uzungwa Scarp Forest Reserve" and Mazumbai Forest Reserve. It is closely related to '' Anelosimus biglebowski''. The name ''A. dude'' derives from "The Dude", a character in the 1998 film '' The Big Lebowski''. Biology ''Anelosimus dude'' ranges in size from 1.80mm to 2.10mm for male total length and from 1.85mm to 2.15mm for female total length. Coloration is generally grey, but varies greatly. ''A. dude'' may have a skewed sex ratio of approximately 2.6 females to 1 male. Ecology and habitat ''Anelosimus dude'' is found exclusively in mid-elevation rainforest Rainforests are characterized by a closed and continuous tree canopy, moisture-dependent vegetation, the presence of epiphytes and lianas and the absence of wildfire. Ra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Species
In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can produce fertile offspring, typically by sexual reproduction. Other ways of defining species include their karyotype, DNA sequence, morphology, behaviour or ecological niche. In addition, paleontologists use the concept of the chronospecies since fossil reproduction cannot be examined. The most recent rigorous estimate for the total number of species of eukaryotes is between 8 and 8.7 million. However, only about 14% of these had been described by 2011. All species (except viruses) are given a two-part name, a "binomial". The first part of a binomial is the genus to which the species belongs. The second part is called the specific name or the specific epithet (in botanical nomenclature, also sometimes i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spider
Spiders ( order Araneae) are air-breathing arthropods that have eight legs, chelicerae with fangs generally able to inject venom, and spinnerets that extrude silk. They are the largest order of arachnids and rank seventh in total species diversity among all orders of organisms. Spiders are found worldwide on every continent except for Antarctica, and have become established in nearly every land habitat. , 50,356 spider species in 132 families have been recorded by taxonomists. However, there has been debate among scientists about how families should be classified, with over 20 different classifications proposed since 1900. Anatomically, spiders (as with all arachnids) differ from other arthropods in that the usual body segments are fused into two tagmata, the cephalothorax or prosoma, and the opisthosoma, or abdomen, and joined by a small, cylindrical pedicel, however, as there is currently neither paleontological nor embryological evidence that spiders ever had ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Theridiidae
Theridiidae, also known as the tangle-web spiders, cobweb spiders and comb-footed spiders, is a large family of Araneomorphae, araneomorph spiders first described by Carl Jakob Sundevall in 1833. This diverse, globally distributed family includes over 3,000 species in 124 genus, genera, and is the most common arthropod found in human dwellings throughout the world. Theridiid spiders are both Entelegynae, entelegyne, meaning that the females have a genital plate, and Cribellum, ecribellate, meaning that they spin sticky capture silk instead of woolly silk. They have a comb of serrated bristles (setae) on the Arthropod leg, tarsus of the fourth leg. The family includes some model organisms for research, including the List of medically significant spider bites, medically important Latrodectus, widow spiders. They are important to studies characterizing their venom and its clinical manifestation, but widow spiders are also used in research on spider silk and sexual biology, including ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tanzania
Tanzania (; ), officially the United Republic of Tanzania ( sw, Jamhuri ya Muungano wa Tanzania), is a country in East Africa within the African Great Lakes region. It borders Uganda to the north; Kenya to the northeast; Comoro Islands and the Indian Ocean to the east; Mozambique and Malawi to the south; Zambia to the southwest; and Rwanda, Burundi, and the Democratic Republic of the Congo to the west. Mount Kilimanjaro, Africa's highest mountain, is in northeastern Tanzania. According to the United Nations, Tanzania has a population of million, making it the most populous country located entirely south of the equator. Many important hominid fossils have been found in Tanzania, such as 6-million-year-old Pliocene hominid fossils. The genus Australopithecus ranged across Africa between 4 and 2 million years ago, and the oldest remains of the genus ''Homo'' are found near Lake Olduvai. Following the rise of '' Homo erectus'' 1.8 million years ago, humanity spread ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Udzungwa Scarp Forest Reserve
The Udzungwa Mountains are a mountain range in south-central Tanzania. The mountains are mostly within Iringa Region, south of Tanzania's capital Dodoma. The Udzungwa Mountains are part of the Eastern Arc Mountains, and are home to a biodiverse community of flora and fauna with large numbers of endemic species. The mountains are home to the Hehe people, and the name Udzungwa comes from the Kihehe word “Wadzungwa", which means the people who live on mountainsides. Iringa is the largest settlement in the mountains, and the regional headquarters. Geography The Undzungwa Mountains cover an area of 16,131.40 km², the largest of the Eastern Arc ranges. The highest peak in the range is Luhombero at . The mountain range extends generally northeast-southwest. The Usangu Plain lies to the northwest, drained by the Great Ruaha River and its tributaries. The Great Ruaha River separates the Udzungwa Mountains from the Rubeho Mountains and Uvidunda Mountains to the northeast. The Kilom ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anelosimus Biglebowski
''Anelosimus biglebowski'' is a species of spider in the family Theridiidae. All specimens known have been found in the Udzungwa Scarp Forest Reserve,In the publication of the find, Agnarsson and Zhang (2006), this was described as "Uzungwa Scarp Forest Reserve" Mufindi District, Tanzania. It is named for the 1998 film '' The Big Lebowski''. Description ''Anelosimus biglebowski'' ranges in total length from 1.80–2.10mm in males and 1.85–2.15mm in females. Coloration of the abdomen is variable in both sexes. Habitat and natural history The only known specimens have been collected from mid-elevation rainforest in the Udzungwa Scarp Forest Reserve, most commonly from an elevation of 1650–1730m. There may be a sex ratio of 2.5 females to 1 male. Habitat range is similar to ''Anelosimus dude ''Anelosimus dude'' is a species of spider in the family Theridiidae. It is native to Tanzania, having only been found in the Udzungwa Scarp Forest ReserveIn the publication of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jeffrey "The Dude" Lebowski
''The Big Lebowski'' () is a 1998 crime comedy film written, produced, and directed by Joel and Ethan Coen Joel Daniel Coen (born November 29, 1954) and Ethan Jesse Coen (born September 21, 1957),State of Minnesota. ''Minnesota Birth Index, 1935–2002''. Minnesota Department of Health. collectively known as the Coen brothers (), are American film .... It stars Jeff Bridges as Jeffrey "The Dude" Lebowski, a Los Angeles slacker and avid Ten-pin bowling, bowler. He is assaulted as a result of mistaken identity, then learns that a millionaire also named Jeffrey Lebowski (David Huddleston) was the intended victim. The millionaire Lebowski's trophy wife is kidnapped, and millionaire Lebowski commissions The Dude to deliver the ransom to secure her release; the plan goes awry when the Dude's friend Walter Sobchak (John Goodman) schemes to keep the ransom money for themselves. Sam Elliott, Julianne Moore, Steve Buscemi, John Turturro, Philip Seymour Hoffman, Tara Reid, David The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Big Lebowski
''The Big Lebowski'' () is a 1998 crime comedy film written, produced, and directed by Joel and Ethan Coen. It stars Jeff Bridges as Jeffrey "The Dude" Lebowski, a Los Angeles slacker and avid bowler. He is assaulted as a result of mistaken identity, then learns that a millionaire also named Jeffrey Lebowski (David Huddleston) was the intended victim. The millionaire Lebowski's trophy wife is kidnapped, and millionaire Lebowski commissions The Dude to deliver the ransom to secure her release; the plan goes awry when the Dude's friend Walter Sobchak (John Goodman) schemes to keep the ransom money for themselves. Sam Elliott, Julianne Moore, Steve Buscemi, John Turturro, Philip Seymour Hoffman, Tara Reid, David Thewlis, Peter Stormare, Jon Polito, and Ben Gazzara also appear, in supporting roles. The film is loosely inspired by the work of Raymond Chandler. Joel Coen stated, "We wanted to do a Chandler kind of story – how it moves episodically, and deals with the characters ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sex Ratio
The sex ratio (or gender ratio) is usually defined as the ratio of males to females in a population. As explained by Fisher's principle, for evolutionary reasons this is typically about 1:1 in species which reproduce sexually. Many species deviate from an even sex ratio, either periodically or permanently. Examples include parthenogenic species, periodically mating organisms such as aphids, some eusocial wasps, bees, ants, and termites. The human sex ratio is of particular interest to anthropologists and demographers. In human societies, sex ratios at birth may be considerably skewed by factors such as the age of mother at birth and by sex-selective abortion and infanticide. Exposure to pesticides and other environmental contaminants may be a significant contributing factor as well. As of 2014, the global sex ratio at birth is estimated at 107 boys to 100 girls (1,000 boys per 934 girls).. Types In most species, the sex ratio varies according to the age profile of the populat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rainforest
Rainforests are characterized by a closed and continuous tree canopy, moisture-dependent vegetation, the presence of epiphytes and lianas and the absence of wildfire. Rainforest can be classified as tropical rainforest or temperate rainforest, but other types have been described. Estimates vary from 40% to 75% of all biotic species being indigenous to the rainforests. There may be many millions of species of plants, insects and microorganisms still undiscovered in tropical rainforests. Tropical rainforests have been called the "jewels of the Earth" and the " world's largest pharmacy", because over one quarter of natural medicines have been discovered there. Rainforests as well as endemic rainforest species are rapidly disappearing due to deforestation, the resulting habitat loss and pollution of the atmosphere. Definition Rainforest are characterized by a closed and continuous tree canopy, high humidity, the presence of moisture-dependent vegetation, a moist layer of lea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
