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Rodents

RODENT, house mouse TYPES / HOUSEHOLD BLACK RAT / ROOF / OF BOATS, NORWAY RAT / SEWER / SPRINGS.



Vectors of disease transmission: contaminated food and water with trichinosis, salmonellosis, infectious jaundice, leptospirosis, lymphocytic choriomeningitis and Weil's disease through their droppings, urine or simple body contact, infected through their bite and carry on your body, fleas and mites responsible for the plague, murine typhus, smallpox Rickettsial or dermatitis.

Ineffectiveness of "do it yourself": the high development of their senses, physical abilities and adaptability make your war against them may be lost before. Only a specialist knowing the biology, habits, who can distinguish their tracks and to determine your preferences in every situation, you can achieve successful and safe control of this pest.

The most common species found in Spain are the sewer rat (Rattus norvegicus) and the black rat (Rattus rattus).

 

 The sewer rat usually live in damp, being the one that has proliferated in the network of sewers, extraordinary swimmer and climber acceptable.

 

It is omnivorous, feeding on insects can equal, and their bodies, vegetables or different materials (paper, wood, rubber, lead, tin, plastic) and can ingest every day a third of its weight.

 

The building sewer rats burrow in holes under the ground or in the sewers and enter houses in search of food back to the den where they feed their young, although in the case of finding a suitable place may make the nest on or near the facilities built by humans.

 

The activity of these rats is mainly crepuscular and tours inside the buildings tend to follow the corners of the walls, where they feel safer by having a protected side. In wasteland prefer to follow the shortest path, even if it means crossing open spaces.

 

 The roof rat or black rat (Rattus rattus) is black or brown appearance, with a length of 20-25 cm long, flexible tail of high mobility, large eyes and ears. Its snout is pointed. Nests in buildings, or in piles of wood, is an excellent climber, and can be found in the upper parts of the structures.

 

At four months old is mature to breed, has four to six litters per year with 4-8 small rats per litter, and can live for over a year.

 

Rat is a high mobility, being able to pass through apertures of just one centimeter gap, and is a major carrier of diseases.

 

The black rat burrows made in dry and once you have chosen the place, has a hard time leaving this area. He does not like to travel long distances to feed but dodge uncovered areas, although this will entail a lot of laps.

 

It feeds on plant and animal products, is a good climber and can climb walls completely smooth at speed, commonly forming nests in the tops of the palm trees or in the attics of houses.

 

The two species of rats live communally so often send food explorers looking for new areas to go live.

 

When rats discover a new food all his behavior is extremely suspicious, we first try one of the components of the community and in the case of the death, is rejected by all members for the rest of his life.

 

Of note is the ease of immunization of rats against any poisonous matter, because your metabolism mechanisms that change the practice of cannibalism or allowing them to ingest small doses of poison to eliminate them, providing immunization.

 

The common rat or sewer, also known as the brown rat coloring your hair, it is an undesirable and annoying rodent, larger than its congener the black rat or country (Rattus rattus) from which it also differs by its greater weight, so that while this species can reach 600 grams, the country rat usually not exceed 250 grams. Another distinguishing fact is that media sewer rat occupies more urban and more humanized than his counterpart country or black rat, which also differs by the smaller size of their ears (largest country in the rat and shorter and thicker in the brown rat) and the queue length so that whilst in the rat setting, the length thereof exceeds the head noticeably over the body, the brown rat or sewage never reaches this length .

 

The sewer rat is native to China and eastern part of the former USSR, where it began to spread in relatively recent times, so that in the sixteenth and seventeenth occupied Central Europe and in the eighteenth century came to France. It is said that in the year 1750 came to Paris, and France went to Spain in the nineteenth century. It is also said, although it is a fact that has been contrasted scientifically, that came accompanying the army of Napoleon's invasion of Spain (WF Foster, 1972). Currently occupies virtually the entire planet and there is no place inhabited island that is free from the presence of this rat, served the men and boats to travel and spread through the world. Currently in Spain vole occupies the entire national territory, including the Balearic and Canary Islands, although not very high levels, and that from the 1,000 meters thins presence, even to disappear.

 

 The common rat or sewer is a good swimmer and diver, but climbs wrong, so in those buildings where both species coexist, the country rat usually occupies the upper parts of the building (lofts, sunrooms and lofts), while common occupies the lower parts (basements, sewers, culverts, drains, yards, etc..) even if it is normal that the common rat, by its larger size and aggressiveness, move to the country rat. So, being a species that is not native to our fauna, with little more than a century of presence in our country, is the most abundant rodent in the cities, where it is considered that some of them are more rats than human inhabitants.

 

 The sewer rat came to Europe for three centuries. Until a few centuries, the cities dominated field rat (Rattus rattus), but to get sewer rats, larger and more aggressive, engaged in a death struggle, expelling from urban to country and forcing the rat to acquire customs countryside, leaving the common rat as the owner of the marginal areas of cities.

 

 Footprints: Because of its light weight often remain marked, even in optimal ways. When it does is diffuse, tangled and unclear. After the footprint is greater than the previous, with the footprint posterior length from 2.5 to 3 cm long and 0.5 to 0.7 cm wide. It is very characteristic of the species leaving oily traces produced by your skin greasy, it leaves marked on the ground and places he usually spends his raids.

 

 Droppings: The shape is less elongated than the rat country, and as these slightly thicker in the middle, but having markedly distinctive characteristic of which one end is tapered, while the other is rounded . Normal length is 12-17 mm and the thickness of 6 mm.

 

 Damage appreciated in food, wood, paper or pipes are the best tracks. The body of the common rat, particularly hit by vehicles, we also can alert you to their presence.

 

 The male is slightly larger than the female. The female also has six pairs of breasts (five country rat), slightly noticeable in infancy.

 

 The polecat, genet and wild cat are the main enemies. The domestic cat (Felis catus) also dares with them, particularly the larger felines copies. He also fought with rodenticides. From owls owl (Bubo bubo) is the only one who dares to them.

 

 Ecological Trivia: The rat is spread with astonishing rapidity. Females give birth every six weeks and can start doing it with only 2 months, born in each birth an average of 12 offspring. In ideal circumstances (all live and reproduce copies) one partner can have 35,000 offspring individuals. Fortunately cannibalism is widespread among rodents and many copies-particularmentre youth-are devoured by their fellows.

 

Main problem: The damage food (human and animals) and crop fields are the main problems that are attributed to the rat, for their ability to damage food. Worldwide, it is estimated the losses caused by rats in 10% of production, not only for direct consumption but also by the destruction and pollution they cause. Some studies have shown that a rat can consume 20 kg of grain per year, 25,000 capsules expel stool (feces) and 6 liters of urine, besides losing thousands of hairs, so have been defined as "a perfect pollution machine "The possibility of transmitting disease control is also necessary.

 

 The common or brown rat is primarily associated with human presence, living mainly on their waste and garbage, but there are wild populations. In any case, water is central to its ecology, which ingested 17-38 ml. water daily (JC White, 1998), finding optimal between sewers, where it acquires one of its common names, as well as in damp and edges of waterways (banks) with dense vegetation.

 

 The common or brown rat, unlike the rat country, is good excavator and when building their habitats, conditions one or more entries 6-9 cm in diameter, usually on slopes locatable ground between the vegetation. They usually have lots of land mined in the mouth, with a system of long tunnels, multiple cameras conditioned bedroom where beds with hair, wool, paper and vegetable matter. These underground bunkers, tunnels include blind, whose purpose is to distract predators that visit.

 

 Territorially common rat is very aggressive and organized social grouping that country rat, and there is a very definite social hierarchy, although fluctuating, the adjusted by frequent infighting, in which dominated individuals are being forced to adapt their habits life to this situation, even having to go out and find food in broad daylight. Group members are identified and recognized by the body odor of the group, common to all of them, have a highly developed sense of smell, but also has very sensitive hearing, sight being its worst sense, not differentiating the colors, apparently. In these meetings in different individuals develop a series of postures of threat and / or submission, which show the externalization of hierarchical status within the group.

 

 Omnivorous and opportunistic presents a very varied diet, even in cities is usually fed garbage and waste, while most wild specimens prefer grains and fruits, although the meat is also part of their diet. Species have developed special caution and suspicion was new or unfamiliar foods, so poisons are not very effective in combating the common rat. It was found that before a new food colony dominated sends an individual to try the bait, death after eating it alerts the entire colony, which relates bait consumption with death and prevents the bait, so that treatments often lose effectiveness. Is considered to be successful acute poisons, it is necessary that the majority of the population rapidly ingest a lethal dose, for it is usually performed prior to placement of an appropriate priming poison the colony. In any case please note that dead rodents are a major health hazard, not only for man but for other examples of wildlife that consume them, so that bodies should be removed, advisably burned.

 

 From essentially crepuscular and nocturnal habits, can also be seen during the day, particularly when it is not disturbed, nor are there nearby cats that chase.

 

  Even though it has been found in modern times the population regression of the common rat or sewer, particularly by suppressing urban landfills, placing garbage in airtight containers, removing corrals and stables within populations and as human hygiene. Anyway still abundant and in some moments, it is favored by the presence of favorable circumstances such as inordinate urban waste, may be in an undesirable pest.

 

 Its half-life is around twelve months, in the wild, while in captivity can reach three years of life. The mortality of the young population is very high and can reach 90 and 95%.

 

The sewer rat is sexually active throughout the year. Typically have from 5 to 8 litters per year. Gestation lasts for 21-25 days.

 

 The female can give birth to 2-16 copies (exceptionally up to 22), but usually are about 12, which the female deposits inside the burrow or nest where a bed conditioner with traces of vegetable matter and hair, born naked , with closed eyes, no hair and no such hearing and weighing only 5-10 grams. The duration of breastfeeding is between 17 and 22 days.

 

They soon early, reach sexual maturity between 8 and 12 weeks.

 

 Their diet is omnivorous. In predominantly urban garbage and human waste; more wild specimens grain and seeds, including in your diet also meat, insects and a variety of materials such as paper, wood, rubber, lead, tin, plastic, frequently causing damage in water pipes and electricity. The common rat can eat every day a third of its weight.

 

 Domestic or laucha Mouse (Mus musculus)

 

The smallest of rodents, is between 7 and 10 cm long, with large ears and eyes and pointed snout. Coat light brown or light gray. Nests near the power source, usually within 3 to 10 meters of the nest is very restless, and are excellent climbers.

 

It is also omnivorous but prefer cereal grains.

 

They are very prolific breeders every two months, can produce litters every 40 to 50 days, with 4-5 small mice. Come 15-20 times a day, can pass through an opening of 0.6 cm and can live without water. Like all rodents transmit serious diseases.

 

 Our company MONTER SL HYGIENE CONTROL, PEST CONTROL technicians, has the best products and innovative mechanisms at European level in order to avoid such problems. You can find our products in our store http://www.controlhigienemonter.com/index.php/es/tienda ON-LINE and treatment information on our website www.controlhigienemonter.com. Do not hesitate to contact us as we will be happy to advise you.

 

Last pest control treatments performed by Monter against: termites, beetles, ants, cockroaches, flies, mosquitoes, rats, mice, scorpions, snakes, lice, moths, pine processionary disinfection plaster ceilings, air conditioning ducts and music in the province of Murcia, Cartagena, Aguilas, Sewer, Alhama de Murcia, Beniel, Blanca, Caravaca de la Cruz, Cehegín, Cieza, Fuente Alamo, The Aljorra, Jumilla, La Union, Librilla, Lorca, Los Alcazares, Mazarrón , La Marina, Molina de Segura Moratalla, Mula, Puerto Lumbreras, San Javier, La Manga del Mar Menor, La Manga Golf Club, San Pedro del Pinatar, Torre Pacheco, Cotillas Towers, Totana Yecla.

 

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