Science and Medicine

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Entry Category: Science and Medicine

Invasive Animals

aka: Alien Animals
An “invasive species” is defined as a species that is non-native (or alien) to the ecosystem under consideration and whose introduction causes or is likely to cause economic or environmental problems or harm to human health. It typically matures and reproduces quickly and increases its geographic range rapidly, establishing populations and persisting over large areas. There are several reasons for this spread, including favorable environmental conditions and lack of natural predators, competitors, and diseases that normally regulate their populations, allowing invasive species to thrive. Invasive biota not only includes a variety of plants but also incorporates a wide variety of invertebrates and higher taxa from their native sites. As invasive species extend and dominate ecosystems, they invariably reduce native biodiversity …

Invasive Plants

aka: Exotic Plants
According to the U.S. Department of Agriculture (USDA) Forest Service, an invasive species is “a species that is non-native or alien to the ecosystem under consideration and whose introduction does or is likely to cause economic or environmental harm or harm to human health.” As such, there are a suite of negative effects from exotic plant species that include replacing rare and endangered species, hybridizing and competing with native species, killing trees and shrubs, altering hydrological patterns and stream function, preventing forest regeneration, possibly containing toxins that may be lethal to certain animals, changing fire patterns, and harboring pathogens. The cost to control invasive species and the damages they cause to property and natural resources in the United States is …

Irons Fork Experimental Forest

Shortly after experimental forests were authorized for the U.S. Forest Service (USFS)—an agency of the U.S. Department of Agriculture (USDA)—by the McSweeney-McNary Forest Research Act of 1928, the Ouachita National Forest (ONF) reached out to the USFS’s Southern Forest Experiment Station (SFES). The ONF staff members wanted the SFES to develop an experimental forest to help them learn about managing the shortleaf pine (Pinus echinata)–dominated forests of the Ouachita Mountains in Arkansas. In early 1931, the SFES dispatched a three-man crew to examine possible locations on the ONF, but they did not find any areas they thought were suitable for silvicultural research. The ONF and the USFS’s Washington DC office persisted, and a few years later the SFES suggested an experimental forest on a large tract of virgin and cutover timber along the Irons Fork …

Ish, George William Stanley

George William Stanley Ish was a prominent black physician in Little Rock (Pulaski County) who cared for citizens of the capital city and inspired members of both races. He graduated from Harvard Medical School and was instrumental in founding both United Friends Hospital and the J. E. Bush Memorial Hospital, primary centers for the medical care of black patients. He was also largely responsible for the inception of the McRae Memorial Tuberculosis Sanatorium in Alexander (Pulaski and Saline counties), the state’s separate black sanatorium. Physicians of both races held him in high regard, and he was a staff member at predominantly white hospitals in Little Rock. G. W. S. Ish was born in Little Rock on October 28, 1883, in …

Ivory-billed Woodpeckers

aka: Campephilus principalis
Long believed to be extinct, the ivory-billed woodpecker (Campephilus principalis) was apparently rediscovered in the Big Woods of east Arkansas in 2004. More than sixty years after the last confirmed sighting in the United States, a research team announced on April 28, 2005, that at least one male ivory-bill survived in the vast bottomland swamp forest. Published in the journal Science, the findings included multiple sightings of the elusive woodpecker and frame-by-frame analyses of brief video footage. The evidence was gathered during an intensive year-long search in the Cache River and White River National Wildlife Refuges in eastern Arkansas, involving more than fifty experts and field biologists working as part of the Big Woods Conservation Partnership, led by the Cornell …

Izard County Tornado of 1883

A tornado tore through north-central Arkansas on November 21, 1883, killing around eleven people, injuring dozens, and devastating Melbourne (Izard County) and LaCrosse (Izard County). The storm’s path started about a mile and a half southwest of Melbourne and moved to the northeast, the width of its devastation ranging from 200 yards to three-quarters of a mile wide. When it reached the Izard County seat of Melbourne at around 4:00 a.m., most people were in bed. A newspaper reported that “for five minutes nothing could be heard but the roar of the winds, the crash of falling buildings, drowning the shrieks of the terrified inhabitants.” The home of former sheriff and Melbourne merchant and cotton buyer John Hinkle, located two …

James, Douglas Arthur

Douglas Arthur James served as a professor of biological sciences at the University of Arkansas (UA) in Fayetteville (Washington County) from 1953 to 2016. He was considered the authority of the birds of Arkansas, co-authoring Arkansas Birds with Joseph C. Neal in 1986, and became one of the state’s leading conservationists in the second half of the last century, helping to start the Arkansas Audubon Society in 1955 and the Arkansas Audubon Society Trust in 1972. He arranged the first meeting of what would become the Ozark Society, which was responsible for saving the Buffalo River from damming. Starting with studies of scrubland birds in northwestern Arkansas, James expanded to studying scrubland birds in Africa, Nepal, and Belize. He was …

Jennings, Roscoe Greene

Roscoe Greene Jennings was one of the eight founders of the Arkansas Industrial University Medical Department, now the University of Arkansas for Medical Sciences (UAMS). Roscoe Jennings was born in Leeds, Maine, on June 11, 1833, the fourth son and fifth child of Perez Smith Jennings and Johanna (Lane) Jennings. His great grandfather, Samuel Jennings of Salem, Massachusetts, had held an important office under King George III of Great Britain but, after the Revolutionary War, had lost his property and moved to Maine to farm. Young Roscoe grew up working on a farm there in the summer and attended school during the winter. He later traveled and taught school to support himself and his continuing education. Jennings apprenticed in medicine …

Johnston, David Augustine Elihue

David Augustine Elihue Johnston, also known as D. A. E. Johnston or Elihue Johnston, was an inventor, a successful dentist and businessman, and a member of the National Negro Business Men’s League. He and his brothers were killed under mysterious circumstances during the time of the Elaine Massacre of 1919. D. A. E. Johnston was born in Pine Bluff (Jefferson County), although sources differ as to the year. Johnston’s official date of birth is listed as May 1, 1878, on his application for a draft exemption with the Phillips County Local Exemption Board on September 12, 1918. On the 1900 U.S. Census, he was listed as being born in May 1881, but on his January 1910 marriage license, his age …

Johnston, Lewis Harrison (L. H.)

Lewis Harrison Johnston was a physician, surgeon, and wealthy businessman. He was a member of the Negro Business League and the State Medical, Dental and Pharmaceutical Association of Oklahoma. He and his three brothers were killed by a posse in 1919 during the Elaine Massacre. Lewis Harrison Johnston, known as L. H., was born on July 4, probably in 1880, in either Arkansas or Ruston, Louisiana, to Lewis Johnston Jr. and Mercy Ann Taborn Johnston. In the 1880 census, Johnston was living in Vaugine Township in Jefferson County with his parents and siblings. His place of birth was listed as Arkansas, and his age was listed as one. In 1900, Johnston was listed as living in Ward 3 in Pine …

Jones, Edith Irby

Edith Irby Jones was the first African American to attend and to graduate from the University of Arkansas Medical School, now the University of Arkansas for Medical Sciences (UAMS), in Little Rock (Pulaski County). Not only was she a pioneer in the desegregation of higher education in Arkansas and the South, but she also served as a highly successful doctor, educator, and philanthropist in Arkansas, Texas, and overseas. Edith Irby was born on December 23, 1927, near Conway (Faulkner County) to Robert Irby, a sharecropper, and Mattie Buice Irby, a maid. Her father died when she was eight, and the family moved to Hot Springs (Garland County). Irby’s older sister died of typhoid fever at the age of twelve, largely …

Jones, Fred Thomas

Fred Thomas Jones Sr. was a physician and pioneer in providing insurance and medical care to African Americans in Arkansas and Louisiana. Fred T. Jones was born on September 8, 1877, in Homer, Louisiana, the oldest of eleven children born to Fred R. Jones, a farmer, and Harriett E. Jones, a housewife. In 1904, Jones married Hattie McGraw. The couple had a daughter but divorced soon after. Three years later, in 1907, he married Katie Chandler. They had seven children—five daughters and two sons. After attending Claiborne Parish School at Bishop College in Marshall, Texas, and the Tuskegee Institute in Alabama, Jones graduated from Arkansas Branch Normal College (now the University of Arkansas at Pine Bluff) between 1900 and 1904, …

Jordan, Lena Lowe

Lena Lowe Jordan was an African American registered nurse and hospital administrator who managed two institutions for African Americans—a hospital for the care of disabled children, which later became a general hospital. In addition, she began a unique training program for young black women who wanted to become practical nurses. Lena Lowe was born on April 6, 1884, in Georgia, to Hollin and Martha Lowe. She spent her childhood in Georgia and then trained as a nurse at the Charity Hospital of Savannah. She moved to Little Rock (Pulaski County) from Cordele, Georgia, in the 1920s and began her career as a registered nurse in Arkansas as head nurse at the Mosaic State Hospital in 1927. In 1920, she became …

Jordan, Wilbert Cornelius

Wilbert Cornelius Jordan started the Oasis Clinic in Los Angeles, California, in 1979. This clinic treated some of the first patients who suffered from human immunodeficiency virus (HIV) and acquired immune deficiency syndrome (AIDS), before the disease had even been clinically observed. Over the next two decades, Jordan treated more than 3,000 clinically diagnosed HIV/AIDS patients. He was inducted into the Arkansas Black Hall of Fame in 2000. A Los Angeles native, Wilbert C. Jordan was born on September 11, 1944, and grew up in Arkansas. He attended Marian Anderson High School in Brinkley (Monroe County) before entering Horace Mann High School in Little Rock (Pulaski County) for his final year, graduating in 1961. He graduated from Harvard University in …

Jumping Bristletails

aka: Archeognatha
aka: Microcoryphia
The Archaeognatha (formerly Microcoryphia) are an order of apterygotes belonging to the Superclass Hexapoda, Class Insecta, Subphylum Labiata, and Phylum Arthropoda. They are known by various common names, such as jumping bristletails. The order is cosmopolitan and includes about 500 species (thirty-three species within twelve genera are Nearctic) in two families (Machilidae and Meinertellidae). None are currently evaluated as being a conservation risk. Little is known about the archaeognaths of Arkansas, as only Machiloides banksi and Pedetontus gershneri have been reported from the state, both from Mount Magazine (Logan County). Among extant arthropod taxa, they are some of the most evolutionarily primitive insects. The fossil record of Archaeognatha is sparse and often represented by fragmentary material. They first appeared in …

Junction Bridge

The Junction Bridge is a lift-span bridge crossing the Arkansas River between downtown Little Rock (Pulaski County) and North Little Rock (Pulaski County). One of six bridges linking the two downtowns, the Junction Bridge was originally constructed as a railroad bridge in 1884; it was rebuilt in 1970, then converted to serve as a pedestrian bridge in 2008. Its southern end rests upon the geological feature that gave the city of Little Rock its name. The Little Rock, Mississippi River and Texas Railroad and the Little Rock and Fort Smith Railroad created a partnership in the early 1880s, envisioning a route that would stretch from the Gulf Coast to the Indian Territory (present-day Oklahoma). A new bridge across the Arkansas …