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Homework - Grand Enchantment Trail Journal - 2017

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City: Portland
State: Oregon
Country: USA
Begins: Sep 13, 2017
Direction: Westbound

Daily Summary
Date: Mon, Aug 7th, 2017

Journal Stats
Entry Visits: 79
Journal Visits: 356
Guestbook Views: 10
Guestbook Entrys: 4

Grand Enchantment Trail Map

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Mansplaining the Invisible

Petrichor: The earthy scent produced when rain falls on dry soil, usually most noticeable in deserts. When a raindrop lands on a porous surface, air from the pores forms small bubbles, which float to the surface and release aerosols. Such aerosols carry the scent, as well as bacteria and viruses from the soil. Raindrops that move at a slower rate tend to produce more aerosols; this serves as an explanation for why the petrichor is more common after light rains.

Some scientists believe that humans appreciate the rain scent because ancestors may have relied on rainy weather for survival

Soughing: A moaning, whistling, or rushing sound as made by the wind in the trees or the sea.

Crepuscular: Animals that are active primarily during twilight (that is, the periods of dawn and dusk). This is distinguished from diurnal and nocturnal behavior, where an animal is active during the hours of daylight or the hours of darkness, respectively. Some crepuscular animals may also be active on a moonlit night or during an overcast day. The term matutinal is used for animals that are active only before sunrise, and vespertine for those active only after sunset.

The time of day an animal is active depends on a number of factors. Predators need to link their activities to times of day at which their prey is available, and prey try to avoid the times when their principal predators are at large. The temperature at midday may be too high or at night too low. Some creatures may adjust their activities depending on local competition. Therefore, for many varied reasons, crepuscular activity may best meet an animal's requirements by compromise.

Elk: The Shawnee Indians called the elk Wapiti, which means white rump. This is because their hind end tends to be white in color. An elk's coat color is any shade from tan to dark brown depending upon the season. This color is found all around their bodies, including the legs and back. Their necks are usually darker than the rest of their bodies. Bulls tend to be lighter colored than cows. Its color provides them with camouflage.

White-tailed rabbits and deer: Because their white tails are very noticeable, predators focus on the bright spots when chasing them but at the expense of focusing on the whole animal. When a rabbit or deer executes an evasive maneuver, like a sharp turn, the spot suddenly disappears, causing the predator to readjust its focus on the camouflaged coat. This will cost it some vital time, giving the prey animal those precious added seconds to escape.

Graupel: Soft hail or snow pellets. Precipitation that forms when supercooled droplets of water are collected and freeze on falling snowflakes, forming 25 mm balls of rime. The term graupel comes from the German language. Graupel is distinct from hail, small hail and ice pellets: the World Meteorological Organization defines small hail as snow pellets encapsulated by ice, a precipitation halfway between graupel and hail.

Virga: In meteorology, virga is an observable streak or shaft of precipitation falling from a cloud that evaporates or sublimates before reaching the ground. The word is derived from Latin virga meaning "twig" or "branch". At high altitudes the precipitation falls mainly as ice crystals before melting and finally evaporating; this is often due to compressional heating, because the air pressure increases closer to the ground. It is very common in the desert and in temperate climates. In some instances, these pockets of colder air can descend rapidly, creating a wet or dry microburst which can be extremely hazardous to aviation

Coyotes: Coyotes walk around 3.19.9 mi per day, often along trails such as logging roads and paths; they may use iced-over rivers as travel routes in winter. They are often crepuscular, being more active around evening and the beginning of the night than during the day. Like many canids, coyotes are competent swimmers, reported to be able to travel at least .50 mi across water. The GET is primarily dominated by Mearns Coyotes (They found in Nevada, Arizona, southern Utah, deserts of southeastern California, west of Rio Grande in New Mexico, and extreme southwestern Colorado). The Mearns coyote is a small subspecies, with medium-sized ears, a small skull, and small teeth. The fur is richly and brightly colored. The fulvous tints are exceedingly bright, covering the hind and forelegs.

Saguaro Cactus: Saguaros have a relatively long lifespan, often exceeding 150 years. They may grow their first side arm any time from 75100 years of age, but some never grow any arms. A saguaro without arms is called a spear. Arms are developed to increase the plant's reproductive capacity, as more apices lead to more flowers and fruit.

The growth rate of saguaros is strongly dependent on precipitation; saguaros in drier western Arizona grow only half as fast as those in and around Tucson. Saguaros grow slowly from seed, never from cuttings, and grow to be over 40 feet in height. The largest known living saguaro is the Champion Saguaro growing in Maricopa County, Arizona, measuring 45.3 feet high with a girth of 10 feet. The tallest saguaro ever measured was an armless specimen found near Cave Creek, Arizona. It was 78 feet in height before it was toppled in 1986 by a windstorm.

A saguaro is able to absorb and store considerable amounts of rainwater, visibly expanding in the process, while slowly using the stored water as needed. This characteristic enables the saguaro to survive during periods of drought.Native birds such as Gila woodpeckers, purple martins, house finches, and gilded flickers live inside holes in saguaros. Flickers excavate larger holes higher on the stem. The nest cavity is deep, and the parents and young are entirely hidden from view. The saguaro creates callus tissue on the wound. When the saguaro dies and its soft flesh rots, the callus remains as a so-called "saguaro boot", which was used by natives for storage.

Contrary to published statements, there is no law mandating prison sentences of 25 years for cutting a cactus down; however it is considered a class four felony.

With that, it's time for bed.

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