Friday, March 20, 2020

Japan and England essays

Japan and England essays What factors were necessary for modernization to occur Japan was a country that was completely closed to contact with European countries up until 1853. At this time Japan did not have manufacturing industries, steam engines, railways, or telegraphic communication, and the traditional weapons of war of its samurai military were the sword, the bow, and muzzle-loading cannon. It was not up until 1854 that Japan began to modernize as compared to England which was far more modernized than Japan. There were many factors that contributed to such modernization to occur in Japan including the arrival of Commodre Perry, increase in trade and population, change in power and beliefs, and the change of the social structure. It was not until Commodore Perry arrived to Japan with a fleet of steam powered ships in 1853, that initiated the isolated country Japan to modernize. Perry had witnessed that Japan at his point, was rigidly conformist, technologically backward, and military-feudal country that had a large agricultural society and had been almost totally closed to the outside world since 1638. Unlike Japan, England had trade agreements with other countries, thus new ideas and technology were created as the power and the economy of the country increased. At this point England had better technology than Japan, they had trains, communication, roads and trade. It was not until 1854 when the treaty of Kankagawa was signed, that set Japan in a series of sets to modernize and gain new ideas and technologies of European countries such as England. Another factor for modernization, was the need for a non-rigid social structure. Since Japan had a strict social structure, they isolated themselves from the Western culture as the Shoguns saw no merit in their culture. The Shogun wanted social stability by keeping Japanese people based on a social order. At the top of the order was the Emperor, then the samurai whose leader was the Shogun, ...

Tuesday, March 3, 2020

Weevils and Snout Beetles, Superfamily Curculionoidea

Weevils and Snout Beetles, Superfamily Curculionoidea Weevils are odd-looking creatures, with their comically long snouts and seemingly misplaced antennae. But did you know theyre actually beetles, just like ladybugs and fireflies? Both weevils and snout beetles belong to the large beetle superfamily Curculionoidea, and share certain common habits and traits. Description: Its difficult to offer a general description for such a varied group of insects, but you can easily identify most weevils and snout beetles by an extended snout (actually called a rostrum or beak). A few groups within this superfamily, most notably the bark beetles, lack this feature, however. All but the primitive weevils have elbowed antennae, extending from the snout. Weevils and snout beetles have 5-segmented tarsi, but they appear 4-segmented because the fourth segment is quite small and obscured from view without careful inspection. Weevils and snout beetles, like all beetles, have chewing mouthparts. While it may appear by its shape that a weevils long snout is for piercing and sucking (like true bugs), it is not. The mouthparts are quite small and located at the end of the rostrum, but are designed for chewing. Most weevil and snout beetle larvae are white or cream in color, legless, cylindrical, and shaped like a C. They tend to burrow, whether in a host plant or other food source. Families in the Superfamily Curculionoidea: Classification within the superfamily Curculionoidea varies, with some entomologists dividing the group into just 7 families, and others using as many as 18 families. Ive followed the classification accepted by Triplehorn and Johnson (Borror and Delongs Introduction to the Study of Insects, 7th edition) here. Family Nemonychidae – pine flower snout beetlesFamily Anthribidae – fungus weevilsFamily Belidae – primitive or cycad weevilsFamily Attelabidae – leaf-rolling weevils, thief weevils, and tooth-nosed snouth beetlesFamily Brentidae – straight-snouted weevils, pear-shaped weevilsFamily Ithyceridae – Ithycerus noveboracensis Family Curculionidae – snout beetles, bark beetles, ambrosia beetles, and true weevils Classification: Kingdom – AnimaliaPhylum – ArthropodaClass – InsectaOrder – ColeopteraSuperfamily - Curculionoidea Diet: Nearly all adult weevils and snout beetles feed on plants, though they vary greatly in their preferences for eating stems, leaves, seeds, roots, flowers, or fruits. The primitive families of weevils (Belidae and Nemonychidae, primarily) are associated with gymnosperms, such as conifers. The larvae of weevils and snout beetles vary greatly in their feeding habits. Though many are plant feeders, they generally prefer dying or diseased plant hosts. Some weevil larvae are highly specialized feeders, with peculiar dietary habits. One genus (Tentegia, found in Australia) lives and feeds in marsupial dung. Some weevil larvae prey on other insects, like scale insects or the eggs of grasshoppers. Many weevils are serious pests of crops, ornamental plants, or forests, and have significant economic impact. On the other hand, because they feed on plants, some weevils can be used as biological control for invasive or noxious weeds. Life Cycle: Weevils and snout beetles undergo complete metamorphosis, like other beetles, with four life cycle stages: egg, larva, pupa, and adult. Special Behaviors and Defenses: Because this is such a large and diverse group of insects with a broad range of distribution, we find quite a few unique and interesting adaptations among its subgroups. The leaf-rolling weevils, for example, have an unusual way of ovipositing. The female leaf-rolling weevil carefully cuts slits into a leaf, lays an egg at the leaf tip, and then rolls the leaf up into a ball. The leaf drops to the ground, and the larva hatches and feeds on the plant tissue, safe inside. Acorn and nut weevils (genus Curculio) bore holes into acorns, and place their eggs inside. Their larvae feed and develop inside the acorn. Range and Distribution: Weevils and snout beetles number about 62,000 species worldwide, making the superfamily Curculionoidea one of the largest insect groups. Rolf G. Oberprieler, an expert in weevil systematics, estimates the true number of existing species may be closer to 220,000. There are currently about 3,500 species known to inhabit North America. Weevils are most abundant and diverse in the tropics, but have been found as far north as the Canadian Arctic and as far south as the tip of South America. Theyre also known to inhabit remote ocean islands. Sources: Borror and Delongs Introduction to the Study of Insects, 7th edition, by Charles A. Triplehorn and Norman F. Johnson.Encyclopedia of Entomology, 2nd edition, edited by John L. Capinera.Beetles of Eastern North America, by Arthur V. Evans.Morphology and Systematics: Phytophaga, edited by Richard A. B. Leachen and Rolf G. Beutel.A World Catalogue of Families and Genera of Curculionoidea (Insects: Coleoptera), by M. A. Alonso-Zarasaga and C. H. C. Lyal, Entomopraxis, 1999 (PDF). Accessed online November 23, 2015.