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SURVIVAL & BUSHCRAFT

Survival skills are techniques that a person may use in order to sustain life in any type of natural environment or built environment. These techniques are meant to provide basic necessities for human life which include water, food, and shelter. The skills are also to support proper knowledge and interactions with animals and plants to promote the sustaining of life over a period of time. Survival skills are often associated with the need to survive in a disaster, chosen or unpredicte  situation. Survival skills are often basic ideas and abilities that ancients invented and used themselves for thousands of years. Outdoor activities such as hiking, backpacking, horseback riding, fishing, and hunting all require basic wilderness survival skills, especially in handling emergency situations. Bushcraft and primitive living are most often self-implemented, but require many of the same skills.

Shelter

Many people who are forced into survival situations often have risk of danger because of direct exposure to the elements. Most people in survival situations die of hypo/hyperthermia, or animal attacks. A shelter can range from a natural shelter, such as a cave, overhanging rock outcrop, or fallen-down tree, to an intermediate form of man-made shelter such as a debris hut, tree pit shelter, or snow cave, to completely man-made structures such as a tarp, tent, or longhouse. It is noted that some common properties between these structures are:

  1. Location (away from hazards, such as cliffs; and nearby materials, like food sources)

  2. Insulation (from ground, rain, wind, air, or sun)

  3. Heat Source (either body heat or fire-heated)

  4. Personal or Group Shelter (having multiple individuals)

Water

A human being can survive an average of three to five days without the intake of water dependant on the . The issues presented by the need for water dictate that unnecessary water loss by perspiration be avoided in survival situations. The need for water increases with exercise. Since the human body is composed of up to 89% water, it should be no surprise that water is higher on the list than fire or food.[citation needed] Ideally, a person should drink about a gallon of water per day.[citation needed] Many lost persons perish due to dehydration, and/or the debilitating effects of water-born pathogens from untreated water.

A typical person will lose minimally two to maximally four litres of water per day under ordinary conditions, and more in hot, dry, or cold weather. Four to six litres of water or other liquids are generally required each day in the wilderness to avoid dehydration and to keep the body functioning properly. The U.S. Army survival manual does not recommend drinking water only when thirsty, as this leads to underhydrating. Instead, water should be drunk at regular intervals. Other groups recommend rationing water through "water discipline".

A lack of water causes dehydration, which may result in lethargy, headaches, dizziness, confusion, and eventually death. Even mild dehydration reduces endurance and impairs concentration, which is dangerous in a survival situation where clear thinking is essential. Dark yellow or brown urine is a diagnostic indicator of dehydration. To avoid dehydration, a high priority is typically assigned to locating a supply of drinking water and making provision to render that water as safe as possible.

Recent thinking is that boiling or commercial filters are significantly safer than use of chemicals, with the exception of chlorine dioxide.

FIRE

Fire is a combustion reaction between oxygen and fuel that typically produces heat, light and smoke. The resulting heat from the reaction can postpone or prevent the risk of hypothermia. Lighting a fire without a lighter or matches, e.g. by using natural flint and a rock or metal with tinder, is a frequent subject of both books on survival and in survival courses, often due to the lack of said materials if an individual was stranded. There is an emphasis placed on practicing fire-making skills before venturing into the wilderness. Producing fire under adverse conditions has been made much easier by the introduction of tools such as the solar spark lighter and the fire piston.

Fires are either started with a concentration of heat, as in the case of the solar spark lighter, or through a spark, as in the case of flint striking a rock or metal. Fires will often be put out if either there is excessive wind (such as either over fanning a fire, or strong winds), or if the fuel or environment is too wet to ignite.

Fire is presented as a tool meeting many survival needs. Along with the need that's mentioned above, it also disinfects water (through boiling and condensing), and can be used to cook and prevent illnesses in foods like animal meat. Another advantage that is presented through fire is an underlooked psychological boost through the sense of safety and protection it gives. In the wild, fire can provide a sensation of home, a focal point, in addition to being an essential energy source. Fire may deter wild animals from interfering with an individual, however wild animals may be attracted to the light and heat of a fire.

FOOD

Culinary root tubers, fruit, edible mushrooms, edible nuts, edible beans, edible cereals or edible leaves, edible moss, edible cacti and algae can be gathered and, if needed, prepared (mostly by boiling). With the exception of leaves, these foods are relatively high in calories, providing some energy to the body. Plants are some of the easiest food sources to find in the jungle, forest or desert because they are stationary and can thus be had without exerting much effort. Skills and equipment (such as bows, snares and nets) are necessary to gather animal food in the wild include animal trapping, hunting, and fishing.

Focusing on survival until rescued by presumed searchers, the Boy Scouts of America, or BSA, especially discourages foraging for wild foods on the grounds that the knowledge and skills needed are unlikely to be possessed by those finding themselves in a wilderness survival situation, making the risks (including use of energy) outweigh the benefits.

Navigation

Those going for trips and hikes are advised by Search and Rescue Services to notify a trusted contact of their planned return time, then notify them of your return. They can tell them to contact the police for search and rescue if you have not returned by a specific time frame (e.g. 12 hours of your scheduled return time).

Survival situations can often be resolved by finding a way to safety, or a more suitable location to wait for rescue. Types of navigation include:

  1. Celestial navigation, using the sun and the night sky to locate the cardinal directions and to maintain course of travel

  2. Using a map, compass or GPS receiver

  3. Dead reckoning

  4. Natural navigation, using the condition of surrounding natural objects (i.e. moss on a tree, snow on a hill, direction of running water, etc.)

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