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Beetles are insects that form the order Coleoptera, in the superorder Endopterygota. Their front pair of wings are hardened into wing-cases, elytra, distinguishing them from most other insects. The Coleoptera, with about 400,000 described species, is the largest of all orders, constituting almost 40% of described insects and 25% of all known animal species; new species are discovered frequently, with estimates suggesting that there are between 0.9 and 2.1 million total species. Found in almost every habitat except the sea and the polar regions, they interact with their ecosystems in several ways: beetles often feed on plants and fungi, break down animal and plant debris, and eat other invertebrates. Some species are serious agricultural pests, such as the Colorado potato beetle, while others such as Coccinellidae eat aphids, scale insects, thrips, and other plant-sucking insects that damage crops.
The University of the Witwatersrand, Johannesburg, is a multi-campus South African public research university situated in the northern areas of central Johannesburg. It is more commonly known as Wits University or Wits. The university has its roots in the mining industry, as do Johannesburg and the Witwatersrand in general. Founded in 1896 as the South African School of Mines in Kimberley, it is the third oldest South African university in continuous operation.
The four-toothed whales or giant beaked whales are beaked whales in the genus Berardius. They include Arnoux's beaked whale in cold Southern Hemispheric waters, and Baird's beaked whale in the cold temperate waters of the North Pacific. A third species, Sato's beaked whale, was distinguished from B. bairdii in the 2010s.
Dung beetles are beetles that feed on feces. Some species of dung beetles can bury dung 250 times their own mass in one night.
Andrea Mia Ghez is an American astrophysicist and professor in the Department of Physics and Astronomy and the Lauren B. Leichtman & Arthur E. Levine chair in Astrophysics, at the University of California, Los Angeles. Her research focuses on the center of the Milky Way galaxy.
Glaresis is a genus of beetles, sometimes called "Enigmatic scarab beetles", in its own family, the Glaresidae. It is closely related to, and was formerly included in, the family Scarabaeidae. Although its members occur in arid and sandy areas worldwide, only the nocturnal adults have ever been collected, and both the larvae and biology of Glaresis are as yet unknown. Due to their narrow habitat associations, a great number of these species occur in extremely limited geographic areas, and are accordingly imperiled by habitat destruction.
The Milky Way is the galaxy that includes the Solar System, with the name describing the galaxy's appearance from Earth: a hazy band of light seen in the night sky formed from stars that cannot be individually distinguished by the naked eye. The term Milky Way is a translation of the Latin via lactea, from the Greek γαλακτικὸς κύκλος, meaning "milky circle". From Earth, the Milky Way appears as a band because its disk-shaped structure is viewed from within. Galileo Galilei first resolved the band of light into individual stars with his telescope in 1610. Until the early 1920s, most astronomers thought that the Milky Way contained all the stars in the Universe. Following the 1920 Great Debate between the astronomers Harlow Shapley and Heber Doust Curtis, observations by Edwin Hubble showed that the Milky Way is just one of many galaxies.
Ochodaeidae, also known as the sand-loving scarab beetles, is a small family of scarabaeiform beetles occurring in many parts of the world.
The scarab beetle subfamily Scarabaeinae consists of species collectively called true dung beetles. Most of the beetles of this subfamily feed exclusively on dung. However, some may feed on decomposing matter including carrion, decaying fruits and fungi. Dung beetles can be placed into three structural guilds based on their method of dung processing namely rollers, dwellers and tunnelers Dung removal and burial by dung beetles result in ecological benefits such as soil aeration and fertilization; improved nutrient cycling and uptake by plants, increase in Pasture quality, biological control of pest flies and intestinal parasites and secondary seed dispersal. Well-known members include the genera Scarabaeus and Sisyphus, and Phanaeus vindex.
Mysore Doreswamy Madhusudan, Ph. D., is an Indian wildlife biologist and ecologist. He is the Co-founder and Director of Nature Conservation Foundation, Mysore and a Visiting Research Fellow at the University of Leeds. He has worked on understanding and mitigating the effects of human-wildlife conflict in the Nilgiri Biosphere Reserve in South India. He has also worked in several other forests in the Himalayas and North-east India. In 2004, he was one among the team of wildlife biologists who described Arunachal macaque, a new species of macaque from Arunachal Pradesh, India.
Michael Francis Land FRS was a British neurobiologist. He was a professor of neurobiology in the vision laboratory at the Sussex Centre for Neuroscience, University of Sussex, England.
George Francis Bornemissza was a Hungarian-born entomologist and ecologist. He studied science at the University of Budapest before obtaining his Ph.D. in zoology at the University of Innsbruck in Austria in 1950. At the end of that year, he emigrated to Australia. There he first worked in the Department of Zoology at the University of Western Australia for 3 years, before pursuing a career with the Commonwealth Scientific and Industrial Research Organisation (CSIRO). Bornemissza was known for his work on the Australian Dung Beetle Project (1965–1985) while working at CSIRO's Division of Entomology. He wrote scientific papers and books based on his research and contributed a collection of mounted beetle specimens to the Australian National Insect Collection and the Tasmanian Museum and Art Gallery. In 2001 he was awarded the Medal of the Order of Australia for his services to Australian entomology.
Feces are the solid or semi-solid remains of food that was not digested in the small intestine, and has been broken down by bacteria in the large intestine. Feces contain a relatively small amount of metabolic waste products such as bacterially altered bilirubin, and dead epithelial cells from the lining of the gut.
The flightless dung beetle is a species of dung beetle endemic to a few areas of South Africa, including the Addo Elephant National Park, Amakhala Game Reserve and the Buffalo Valley Game Farm. It is the only species in the genus Circellium. The loss of flight allows the beetle to use the empty space below the elytra as a carbon dioxide storage tank, creating a unique breathing mechanism which conserves water, a valuable survival trait in the arid regions it lives in.
Animal navigation is the ability of many animals to find their way accurately without maps or instruments. Birds such as the Arctic tern, insects such as the monarch butterfly and fish such as the salmon regularly migrate thousands of miles to and from their breeding grounds, and many other species navigate effectively over shorter distances.
Scarabaeus satyrus is one of the Old World dung beetle species. These beetles roll a ball of dung for some distance from where it was deposited, and bury it, excavating an underground chamber to house it. An egg is then laid in the ball, the growing larva feeding on the dung, pupating, and eventually emerging as an adult.
Many animals are able to navigate using the Sun as a compass. Orientation cues from the position of the Sun in the sky are combined with an indication of time from the animal's internal clock.
Saphobius is a genus of dung beetles in the tribe Deltochilini of the subfamily Scarabaeinae. They are endemic to New Zealand, with Saphobius edwardsi being most widespread. They are small in size, flightless, forest dwelling and nocturnal, which is unusual for dung beetles.
Marie Ann-Charlotte Dacke is a professor in the Lund Vision Group at Lund University in Sweden. She received an Ig Nobel Prize in 2013 for her work on the navigation system of dung beetles. She is also a panel member on the Swedish TV show Studio Natur, and was named best science communicator in Sweden during the 2012 Forskar Grand Prix.
References
- ↑ Dacke, M.; Baird, E.; Byrne, M.; Scholtz, C. H.; Warrant, E. J. (2013). "Dung Beetles Use the Milky Way for Orientation". Current Biology. 23 (4): 298–300. doi: 10.1016/j.cub.2012.12.034 . PMID 23352694.
- ↑ Wits. "Marcus Byrne", University of Witwatersrand Johannesburg, Johannesburg, unknown date. Retrieved on 6 October 2014.
- ↑ Wits. "Marcus Byrne - entomologist", TED , USA, unknown date. Retrieved on 6 October 2014.