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Mass Provisioning
Mass provisioning is a form of parental investment in which an adult insect, most commonly a hymenopteran such as a bee or wasp, stocks all the food for each of her offspring in a small chamber (a "cell") before she lays the egg. This behavior is common in both solitary and eusocial bees, though essentially absent in social wasp, eusocial wasps. Diversity In bees, stored provisions typically consist of masses of mixed pollen and nectar, though a few species store floral oils. In a few cases, such as stingless bees and some Halictidae, sweat bees, the number of cells in a single nest can number in the hundreds to thousands, but more typically a nest contains either a single cell, or a small number (fewer than 10). In predatory wasps, the food is typically in the form of paralyzed or dead prey items; after digging the nest they quickly catch one or a few prey animals, bring them to the nest and lay eggs on them, seal the nest and leave. Some wasp lineages (e.g. Crabronidae) show v ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sphecini
The Sphecinae is a subfamily of the digger wasp family Sphecidae The Sphecidae are a Cosmopolitan distribution, cosmopolitan family of wasps of the suborder Apocrita that includes Ammophilinae, sand wasps, mud daubers, and other thread-waisted wasps. The name Sphecidae was formerly given to a much larger g .... It contains the following genera: * '' Chilosphex'' Menke ''in'' R. Bohart and Menke, 1976 * '' Isodontia'' Patton, 1880 * '' Palmodes'' Kohl, 1890 * '' Prionyx'' Vander Linden, 1827 * '' Sphex'' Linnaeus, 1758 * '' Stangeella'' Menke, 1962 References Sphecidae Apocrita subfamilies {{Apoidea-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Honey Bee
A honey bee (also spelled honeybee) is a eusocial flying insect within the genus ''Apis'' of the bee clade, all native to mainland Afro-Eurasia. After bees spread naturally throughout Africa and Eurasia, humans became responsible for the current cosmopolitan distribution of honey bees, introducing multiple subspecies into South America (early 16th century), North America (early 17th century), and Australia (early 19th century). Honey bees are known for their construction of perennial colonial nests from wax, the large size of their colonies, and surplus production and storage of honey, distinguishing their hives as a prized foraging target of many animals, including honey badgers, bears and human hunter-gatherers. Only 8 surviving species of honey bees are recognized, with a total of 43 subspecies, though historically 7 to 11 species are recognized. Honey bees represent only a small fraction of the roughly 20,000 known species of bees. The best-known honey bee is t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dung Beetle
Dung beetles are beetles that feed on feces. All species of dung beetle belong to the superfamily Scarabaeoidea, most of them to the subfamilies Scarabaeinae and Aphodiinae of the family Scarabaeidae (scarab beetles). As most species of Scarabaeinae feed exclusively on feces, that subfamily is often dubbed ''true dung beetles''. There are dung-feeding beetles which belong to other families, such as the Geotrupidae (the ''earth-boring dung beetle''). The Scarabaeinae alone comprises more than 5,000 species. As they do not belong to a single group sharing a common ancestor, there is a diversity in the behavior of dung beetles, including the iconic dung-rolling behavior revered by Ancient Egyptians as Khepri rolling the sun across the sky. Taxonomy Dung beetles are not a single taxonomic group (they are not monophyletic); dung feeding is found in a number of families of beetles, so the behaviour cannot be assumed to have evolved only once. Below is the taxonomy of beetles, with ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brachygastra
Honey wasps are species in the genus ''Brachygastra'' of the family Vespidae. ''Brachygastra'' comprises 17 species of social paper wasps. The ancestral species are thought to have diverged about 32 million years ago within diverse Amazon rainforest. Subsequent speciation within the genus is thought to have mostly occurred between 23 Ma and 10 Ma, during the time of the Andean uplift when the landscape was significantly altered due to tectonic activity. The current cladistic organisation of the genus has been heavily reliant on morphological characteristics. ''Brachygastra'' species live in colonies and construct Arboreal locomotion, arboreal paper nests in humid forest environments, although several species occur in open vegetation. They are widely distributed in Central America, Central and South America, and also occur in southwest areas of North America. They have a broad diet (nutrition), diet consisting of floral nectar and insect protein. Several species are known to collec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vespid
The Vespidae are a large (nearly 5000 species), diverse, cosmopolitan family of wasps, including nearly all the known eusocial wasps (such as ''Polistes fuscatus'', ''Vespa orientalis'', and ''Vespula germanica'') and many solitary wasps. Each social wasp colony includes a queen and a number of female workers with varying degrees of sterility relative to the queen. In temperate social species, colonies usually last only one year, dying at the onset of winter. New queens and males (drones) are produced towards the end of the summer, and after mating, the queens hibernate over winter in cracks or other sheltered locations. The nests of most species are constructed out of mud, but polistines and vespines use plant fibers, chewed to form a sort of paper (also true of some stenogastrines). Many species are pollen vectors contributing to the pollination of several plants, being potential or even effective pollinators, while others are notable predators of pest insect species, and a few ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Prionyx Spinolae
''Prionyx'' is a genus of wasps in the family Sphecidae. They are known to hunt and feed on grasshoppers. Behavior Prior to laying their eggs the female ''Prionyx'' stings a grasshopper causing paralysis. She will then bury the grasshopper in a burrow she has excavated, lay an egg on the body, and then seal the burrow. When the egg develops it feeds on the grasshopper until it has matured, and then pupates. Etymology The name ''Prionyx'' comes from the Greek words "Prion" (Saw) and "Onyx/Onychus" (Claw), which refers to the saw-like endings on the creature's legs. Species These species belong to the genus ''Prionyx'': * '' Prionyx afghaniensis'' (de Beaumont, 1970) * '' Prionyx atratus'' (Lepeletier de Saint Fargeau, 1845) * '' Prionyx bifoveolatus'' (Taschenberg, 1869) * '' Prionyx binghami'' Jha and Farooqi, 1996 * '' Prionyx canadensis'' (Provancher, 1887) * '' Prionyx chobauti'' (Roth, 1925) * '' Prionyx crudelis'' (F. Smith, 1856) * '' Prionyx damascenus'' (de Beaumont ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Grasshopper
Grasshoppers are a group of insects belonging to the suborder Caelifera. They are amongst what are possibly the most ancient living groups of chewing herbivorous insects, dating back to the early Triassic around 250 million years ago. Grasshoppers are typically ground-dwelling insects with powerful hind legs which allow them to escape from threats by leaping vigorously. Their front legs are shorter and used for grasping food. As hemimetabolous insects, they do not undergo complete metamorphosis; they hatch from an egg into a Nymph (biology), nymph or "hopper" which undergoes five moults, becoming more similar to the adult insect at each developmental stage. The grasshopper hears through the tympanal organ which can be found in the first segment of the abdomen attached to the thorax; while its sense of vision is in the compound eyes, a change in light intensity is perceived in the simple eyes (ocelli). At high population densities and under certain environmental conditions, som ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Prionyx
''Prionyx'' is a genus of wasps in the family Sphecidae. They are known to hunt and feed on grasshoppers. Behavior Prior to laying their eggs the female ''Prionyx'' stings a grasshopper causing paralysis. She will then bury the grasshopper in a burrow she has excavated, lay an egg on the body, and then seal the burrow. When the egg develops it feeds on the grasshopper until it has matured, and then pupates. Etymology The name ''Prionyx'' comes from the Greek words "Prion" (Saw) and "Onyx/Onychus" (Claw), which refers to the saw-like endings on the creature's legs. Species These species belong to the genus ''Prionyx'': * '' Prionyx afghaniensis'' (de Beaumont, 1970) * '' Prionyx atratus'' (Lepeletier de Saint Fargeau, 1845) * '' Prionyx bifoveolatus'' (Taschenberg, 1869) * '' Prionyx binghami'' Jha and Farooqi, 1996 * '' Prionyx canadensis'' (Provancher, 1887) * '' Prionyx chobauti'' (Roth, 1925) * '' Prionyx crudelis'' (F. Smith, 1856) * '' Prionyx damascenus'' (de Beaumont ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Parental Care
Parental care is a behavioural and evolutionary strategy adopted by some animals, involving a parental investment being made to the evolutionary fitness of offspring. Patterns of parental care are widespread and highly diverse across the animal kingdom.Kokko, H. & Jennions, M.D. (2008) Parental investment, sexual selection and sex ratios. ''Journal of Evolutionary Biology,'' 21, pp.919–948. There is great variation in different animal groups in terms of how parents care for offspring, and the amount of resources invested by parents. For example, there may be considerable variation in the amount of care invested by each sex, where females may invest more in some species, males invest more in others, or investment may be shared equally. Numerous hypotheses have been proposed to describe this variation and patterns in parental care that exist between the sexes, as well as among species.Gonzalez-Voyer, A. and Kolm, N. (2010). Parental Care and Investment. ''Encyclopedia of Life Scie ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Parental Investment
Parental investment, in evolutionary biology and evolutionary psychology, is any parental expenditure (e.g. time, energy, resources) that benefits offspring.Clutton-Brock, T.H. 1991. ''The Evolution of Parental Care''. Princeton, NJ: Princeton U. Press. pg. 9Trivers, R.L. (1972). Parental investment and sexual selection. In B. Campbell (Ed.), ''Sexual selection and the descent of man'', 1871-1971 (pp. 136–179). Chicago, IL: Aldine. . Parental investment may be performed by both males and females (called ''biparental care''), females alone (''exclusive maternal care'') or males alone (''exclusive paternal care''). Care can be provided at any stage of the offspring's life, from pre-natal (e.g. egg guarding and Egg incubation, incubation in birds, and placental nourishment in mammals) to post-natal (e.g. food provisioning and protection of offspring). Parental investment theory, a term coined by Robert Trivers in 1972, predicts that the sex that invests more in its offsprin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Evolution
Evolution is the change in the heritable Phenotypic trait, characteristics of biological populations over successive generations. It occurs when evolutionary processes such as natural selection and genetic drift act on genetic variation, resulting in certain characteristics becoming more or less common within a population over successive generations. The process of evolution has given rise to biodiversity at every level of biological organisation. The scientific theory of evolution by natural selection was conceived independently by two British naturalists, Charles Darwin and Alfred Russel Wallace, in the mid-19th century as an explanation for why organisms are adapted to their physical and biological environments. The theory was first set out in detail in Darwin's book ''On the Origin of Species''. Evolution by natural selection is established by observable facts about living organisms: (1) more offspring are often produced than can possibly survive; (2) phenotypic variatio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
