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Nicrophorus Defodiens
''Nicrophorus defodiens'' is a burying beetle described by Carl Gustaf Mannerheim (naturalist), Mannerheim in 1846. In 2012, ''N. defodiens'' was found to be one of at least two burying beetles which can breed in the forest Canopy (biology), canopy. Ecology When it comes to mating, the males of ''N. defodiens'' use a pheromonal signal to attract their mate. During the mating period females often bite males. When copulation (zoology), copulation is over, the males' pheromone emission is resumed, but the female attempts to obstruct the male from attracting any additional females, thus imposing monogamy on the male. Unlike ''Nicrophorus orbicollis, N. orbicollis'' this species produces twice as many eggs (roughly 23.9 in total). References * Silphidae Beetles of North America Beetles described in 1846 Taxa named by Carl Gustaf Mannerheim (naturalist) {{Silphidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carl Gustaf Mannerheim (naturalist)
Count Carl Gustaf Mannerheim (10 August 1797 – 9 October 1854) was a Finnish entomologist and governor of the Viipuri province in the Grand Duchy of Finland. Career From 1819 he served as the secretary to the Finnish Minister Secretary of State in Saint Petersburg. In 1833 he was appointed governor of the Vaasa Province and soon after of Viipuri and Savonlinna County. From 1839 until his death he served as the chief judge of the newly formed Imperial Court of Appeals (“Kayserlichen Hofgerichtes”, hovioikeus) in Vyborg. Scientific contributions Mannerheim devoted much of his time to natural sciences and acquired a significant scientific collection of Coleoptera. He published many papers concerning them and worked on the collections of the natural history museums of Dorpat, Saint-Petersburg and Moscow. He contributed greatly to the knowledge of the coleopteran fauna of western North America (then Russian America). Societies and organizations Mannerheim was a member of t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Burying Beetle
Burying beetles or sexton beetles, genus ''Nicrophorus'', are the best-known members of the family Silphidae ( carrion beetles). Most of these beetle 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 describ ...s are black with red markings on the Elytron, elytra (forewings). Burying beetles are true to their name—they bury the carcasses of small vertebrates such as birds and rodents as a Necrophagy, food source for their larvae. They are unusual among insects in that both the male and female parents take Bi-parental care, care of the brood. They are carnivores. The genus name is sometimes spelled ''Necrophorus'' in older texts: this was an unjustified Emendation (taxonomy), emendation by Carl Peter Thunberg (1789) of Fabricius's original name, and is not valid under the ICZN. The America ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Canopy (biology)
In biology, the canopy is the aboveground portion of a plant community, plant cropping or crop, formed by the collection of individual Crown (botany), plant crowns. In forest ecology, canopy also refers to the upper layer or habitat zone, formed by mature tree crowns and including other biological organisms (epiphytes, lianas, Arboreal, arboreal animals, etc.). The communities that inhabit the canopy layer are thought to be involved in maintaining forest diversity, resilience, and functioning. Sometimes the term canopy is used to refer to the extent of the outer layer of leaves of an individual tree or group of trees. Shade trees normally have a dense canopy that blocks light from lower growing plants. Observation Early observations of canopies were made from the ground using binoculars or by examining fallen material. Researchers would sometimes erroneously rely on extrapolation by using more reachable samples taken from the understory. In some cases, they would use unc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Psyche (consciousness Journal)
''Psyche'' was an online peer-reviewed academic journal covering studies on consciousness and its relation to the brain from perspectives provided by the disciplines of cognitive science, philosophy, psychology, physics, neuroscience, artificial intelligence, and anthropology. It was established in 1993 by Patrick Wilken and Kevin B Korb as one of the earliest attempts at an online academic journal. In 2008 it became the official journal of the Association for the Scientific Study of Consciousness. The editors-in-chief An editor-in-chief (EIC), also known as lead editor or chief editor, is a publication's editorial leader who has final responsibility for its operations and policies. The highest-ranking editor of a publication may also be titled editor, managing ... of the journal during this phase were Gabriel Kreiman and Robert van Gulick. As of 2011, ''Psyche'' is no longer accepting articles, but the archive remains accessible. External links ''Psyche'' website and archi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Copulation (zoology)
In zoology, copulation is animal sexual behavior in which a male introduces sperm into the female's body, especially directly into her reproductive tract. This is an aspect of mating. Many animals that live in water use external fertilization, whereas internal fertilization may have developed from a need to maintain gametes in a liquid medium in the Late Ordovician epoch. Internal fertilization with many vertebrates (such as all reptiles, some fish, and most birds) occurs via cloacal copulation, known as cloacal kiss (see also hemipenis), while mammals copulate vaginally, and many basal vertebrates reproduce sexually with external fertilization. In spiders and insects Spiders are often confused with insects, but they are not insects; instead, they are arachnids. Spiders have separate male and female sexes. Before mating and copulation, the male spider spins a small web and ejaculates on to it. He then stores the sperm in reservoirs on his large pedipalps, from which he ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pheromone
A pheromone () is a secreted or excreted chemical factor that triggers a social response in members of the same species. Pheromones are chemicals capable of acting like hormones outside the body of the secreting individual, to affect the behavior of the receiving individuals. There are '' alarm pheromones'', ''food trail pheromones'', '' sex pheromones'', and many others that affect behavior or physiology. Pheromones are used by many organisms, from basic unicellular prokaryotes to complex multicellular eukaryotes. Their use among insects has been particularly well documented. In addition, some vertebrates, plants and ciliates communicate by using pheromones. The ecological functions and evolution of pheromones are a major topic of research in the field of chemical ecology. Background The portmanteau word "pheromone" was coined by Peter Karlson and Martin Lüscher in 1959, based on the Greek φερω ''pheroo'' ('I carry') and ὁρμων ''hormon'' ('stimulating'). Pheromone ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Princeton University Press
Princeton University Press is an independent Academic publishing, publisher with close connections to Princeton University. Its mission is to disseminate scholarship within academia and society at large. The press was founded by Whitney Darrow, with the financial support of Charles Scribner II, Charles Scribner, as a printing press to serve the Princeton community in 1905. Its distinctive building was constructed in 1911 on William Street in Princeton. Its first book was a new 1912 edition of John Witherspoon's ''Lectures on Moral Philosophy.'' History Princeton University Press was founded in 1905 by a recent Princeton graduate, Whitney Darrow, with financial support from another Princetonian, Charles Scribner II. Darrow and Scribner purchased the equipment and assumed the operations of two already existing local publishers, that of the ''Princeton Alumni Weekly'' and the Princeton Press. The new press printed both local newspapers, university documents, ''The Daily Princetonian ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nicrophorus Orbicollis
''Nicrophorus orbicollis'' is a nearctic burying beetle first described by Thomas Say in 1825. It is a member of the genus ''Nicrophorus'' or sexton beetles, comprising the most common beetles in the family Silphidae. This species is a decomposer feeding on carcasses of small dead animals. ''N. orbicollis'' can be used for scientific research both medically and forensically (if the beetle is present in the area). Morphology/taxonomy Adult ''Nicrophorus orbicollis'' is immediately recognized by its colorful orange markings on its elytra. The dorsal surface of the elytra is covered in long, fine setae, especially laterally, giving it a hairy appearance. The pronotum is spherical with wide lateral and basal margins. Its most distinctive feature from other Silphidae is its clubbed antennae with three orange apical segments and a black base. The posterior lobe of the metepimeron has a few brown hairs and the hind tibia is straight. The adult form is moderately sized at ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Silphidae
Silphidae is a family of beetles that are known commonly as large carrion beetles, carrion beetles or burying beetles. There are two subfamilies: Silphinae and Nicrophorinae. Nicrophorines are sometimes known as sexton beetles. The number of species is relatively small at around two hundred. They are more diverse in the temperate region although a few tropical endemics are known. Both subfamilies feed on decaying organic matter such as dead animals. The subfamilies differ in which uses parental care and which types of carcasses they prefer. Silphidae are considered to be of importance to forensic entomologists because when they are found on a decaying body they are used to help estimate a post-mortem interval. Taxonomy, evolution, and etymology The family Silphidae belongs to the order Coleoptera. They are commonly referred to as carrion beetles or burying beetles and are usually associated with carrion, fungi, and dung. In the past, members of the family Agyrtidae were in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Beetles Of North America
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 life-forms; 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 (ladybirds or ladybugs) eat aphids, scale insects, thrips, and other plant-sucking insects that damage crops. Beetles typically have a particularly hard e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Beetles Described In 1846
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 life-forms; 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 (ladybirds or ladybugs) eat aphids, scale insects, thrips, and other plant-sucking insects that damage crops. Beetles typically have a particularly hard exoske ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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