Habits and Traits of Jumping Spiders

Habits and Traits of Jumping Spiders When you look at a jumping spider, it will look right back at you with large, forward-facing eyes. They can be found throughout the world in the Americas, Europe, Asia, Africa, and Australia. Salticidae is the largest family of spiders, with over 5,000 species described worldwide. While more prevalent in the tropics, jumping spiders are abundant nearly everywhere in their range. Jumping Spider Traits Jumping spiders are small and scrappy carnivores. They are often fuzzy and measure less than a half inch in body length. Salticids can run, climb, and (as the common name suggests) jump. Prior to jumping, the spider attaches a silk thread to the surface beneath it, so it can climb quickly back to its perch if needed. Salticids, like most other spiders, have eight eyes. Their unique eye arrangement makes it easy to differentiate jumping spiders from other species. A jumping spider has four eyes on its face, with an enormous pair in the center, giving it an almost alien appearance. The remaining, smaller eyes are located on the dorsal surface of the cephalothorax (a structure combining the fused head and thorax). The Himalayan jumping spider (Euophrys omnisuperstes) lives at high elevations in the Himalayan mountains. They feed on insects that are  carried up the  mountain on the wind from lower elevations. The species name, omnisuperstes, means highest of all, so its not that surprising that specimens of this remarkable species have been found on Mount Everest at elevations of 22,000 feet. Fast facts: Jumping Spider Classification Kingdom: AnimaliaPhylum: ArthropodaClass: ArachnidaOrder: AraneaeFamily: Salticidae Diet and Life Cycle Jumping spiders hunt and feed on small insects. All are carnivorous, but a few species also eat pollen and nectar. Female jumping spiders build a silk case around their eggs and often stand guard over them until they hatch. (Youve probably seen these spiders with their eggs in corners of exterior windows or door frames.) Young jumping spiders emerge from the egg sac looking like miniature versions of their parents. They molt and grow into adulthood. Special Behaviors and Defenses As the common name suggests, a jumping spider can jump quite far, achieving distances more than 50 times its body length. If you examine their legs, however, youll notice that they are not strong or muscular in appearance. Rather than relying on muscle strength to leap, salticids are able to quickly increase the blood pressure in their legs, which causes the legs to extend and propel their bodies through the air. The size and shape of jumping spiders eyes give afford them excellent vision. Salticids use their enhanced sight to their advantage as hunters, employing their high-resolution vision to locate potential prey. Some jumping spiders mimic other insects such as ants. Others are able to camouflage themselves to blend into their surroundings, helping them sneak up on prey. Insects and spiders with heightened visual acuity often engage in elaborate courtship dances to attract mates, and jumping spiders are no exception to this rule. Sources Borror and DeLongs Introduction to the Study of Insects,  7th edition, by Charles A. Triplehorn and Norman F. Johnson.The Insects: An Outline of Entomology, 3rd edition, by  P. J. Gullan and P. S. Cranston.  Family Salticidae - Jumping Spiders, Bugguide.net. Accessed online February 29, 2016.Salticidae, Tree of Life Web Project, Wayne Maddison. Accessed online February 29, 2016.Tales of the Himalaya: Adventures of a Naturalist, by Lawrence W. Swan.

Texas AM University Commerce Admissions Data

Texas AM University Commerce Admissions Data Admissions Overview: Students interested in Texas AM - Commerce should note that, while the school admits under half of applicants each year, students with solid grades and test scores still have a good chance of being admitted. To apply, those interested will need to submit (along with an application) SAT or ACT scores and official high school transcripts. Admissions Data (2016): Texas A M University - Commerce Acceptance Rate: 46%Test Scores 25th / 75th PercentileSAT Critical Reading: 430 / 540SAT Math: 440 / 540SAT Writing: - / -What these SAT numbers meanACT Composite: 18  / 23ACT English: 18 / 25ACT Math: 17 / 24What these ACT numbers mean Texas AM University Commerce Description: Founded in 1889, Texas AM University-Commerce is a public, four-year university located in Commerce, Texas, about an hour northeast of Dallas. AM-Commerce offers more than 100 undergraduate and graduate degrees in a wide range of fields, and the university also has extensive online educational options. High achieving students should check out TAMUCs honors program which gives full-tuition scholarships to 50 Honors students every year. Academics at TAMUC are supported by an 18 to 1 student / faculty ratio. Texas AM-Commerce is home to some very interesting intramural sports including Trivia Bowl, a Madden Tournament, and something called Cornhole. The university also has over 120 student clubs and organizations, and an active system of fraternities and sororities. For intercollegiate athletics, AM-Commerce Lions compete in the NCAA Division II  Lone Star Conference  (LSC) with five mens and seven womens sports. The university also has a rodeo program and cheer and dance teams. Enrollment (2016): Total Enrollment: 13,514  (8,318 undergraduates)Gender Breakdown: 40% Male / 60% Female72% Full-time Costs (2016 - 17): Tuition and Fees: $7,750  (in-state); $19,990 (out-of-state)Books: $1,400 (why so much?)Room and Board: $8,270Other Expenses: $3,413Total Cost: $20,833  (in-state); $33,073 (out-of-state) Texas AM University Commerce Financial Aid (2015  - 16): Percentage of New Students Receiving Aid: 90%Percentage of New Students Receiving Types of AidGrants: 78%Loans: 60%Average Amount of AidGrants: $9,617Loans: $5,799 Academic Programs: Most Popular Majors:  Business Administration, Exercise Science, General Studies, Interdisciplinary Studies, Liberal Studies, Psychology, Social Work Transfer, Graduation and Retention Rates: First Year Student Retention (full-time students): 63%Transfer Out Rate: 30%4-Year Graduation Rate: 24%6-Year Graduation Rate: 43% Intercollegiate Athletic Programs: Mens Sports:  Football, Golf, Basketball, Track and Field, Cross CountryWomens Sports:  Golf, Soccer, Volleyball, Track and Field, Cross Country, Basketball Data Source: National Center for Educational Statistics Interested in Texas AM University Commerce? You May Also Like These Colleges: Texas Tech University: Profile | GPA-SAT-ACT GraphUniversity of Texas at Arlington:  ProfileUniversity of North Texas:  Profile  |  GPA-SAT-ACT GraphBaylor University:  Profile  |  GPA-SAT-ACT GraphWest Texas AM University: ProfileSam Houston State University:  ProfileTexas Christian University:  Profile  |  GPA-SAT-ACT GraphTexas AM University Main Campus:  Profile  |  GPA-SAT-ACT GraphStephen F. Austin State University:  ProfilePrarie View AM University:  ProfileTexas AM University-Corpus Christi:  ProfileUniversity of Houston:  Profile  |  GPA-SAT-ACT Graph Texas AM University Commerce Mission Statement: mission statement from  tamuc.edu/aboutUs/ourMission/default.aspx Texas AM University-Commerce provides a personal, accessible, and affordable educational experience for a diverse community of learners. We engage in creative discovery and dissemination of knowledge and ideas for service, leadership, and innovation in an interconnected and dynamic world.