I’m always impressed by, and more than a little envious of, people who make genuine contributions to society. Most people, including me, and maybe you, are just taking up space. No offense intended; that’s just the way it is.
One such person who left his mark is the naturalist and zoologist C. Hart Merriam (1855-1942). Merriam was born wealthy and well-connected, and he could have settled back and lived a life of indolence and privilege. Instead, he built upon his status, applied himself, and made a difference.
Clinton Hart Merriam was born in New York City, the son of Clinton Levi Merriam, a member of Congress, and Carolyn Hart Merriam, the daughter of a judge. The younger Merriam chose to go by “C. Hart” because his father already had a claim on the name Clinton.
The Merriam family wintered in New York City, but otherwise lived at Locust Grove, an estate in rural Lewis County in upstate New York. Growing up there, young Merriam developed an interest in the natural world.
By the time he was 15, he had learned the basics of taxidermy and amassed a sizable collection of animal specimens. To encourage the boy, his father introduced him to Spencer Baird, a naturalist at the Smithsonian Institution. Impressed by young Merriam’s collection, Baird arranged for him to take professional lessons in taxidermy.
In 1871, when Merriam was 16, Baird appointed him to accompany the Hayden Geological Survey to Wyoming as a naturalist. The Hayden expedition explored the territory that later became Yellowstone National Park.
Merriam returned with hundreds of bird and nest specimens. His report on the trip was his first contribution to scientific literature.
In 1874, at Baird’s urging, Merriam enrolled at Yale University, where he studied anatomy and natural history. While at Yale, he published several scientific papers, including “A Review of the Birds of Connecticut” and, following a trip to Florida with his father, “Ornithological Notes From the South.”
Merriam’s interest in anatomy soon led him to leave Yale and enter medical school at Columbia University. He earned his M.D. degree in 1879 and returned to Locust Grove and Lewis County, where he established a successful medical practice.
Merriam stayed in touch with his naturalist friends and continued to add specimens to his collection. He also began studying mammals as well as birds.
Another interest that surfaced was the question of species distribution — understanding the factors that determine where living things make their homes. Preparing for future study, Merriam hired a clerk to research weather statistics and to document monthly temperatures at different locations and altitudes.
In 1883, a group of scientists created the American Ornithologists’ Union, patterned after a similar British organization. Merriam was elected secretary and treasurer as well as chairman of the committees on Bird Migration and Geographic Distribution.
Merriam’s grand plans for his committees far exceeded the organization’s resources. But Merriam had resources of his own: a father serving in the U.S. House of Representatives and friendships with John Muir, John Wesley Powell, and Theodore Roosevelt.
The elder Merriam arranged the creation of an ornithology section within the Department of Agriculture, plus $10,000 annually for a chief ornithologist. In 1886, the younger Merriam was chosen for the job. Through the magic of political connections, he thus transitioned from medical doctor to scientist.
In time, the ornithology section became the Bureau of Biological Survey, which Merriam headed for 25 years. In 1940, it evolved into the U.S. Fish and Wildlife Service.
In 1886, Merriam married his secretary, Virginia Gosnell. In 1888, he was among the 33 notable Americans who founded the National Geographic Society.
Then, in July 1889, he set forth on a scientific expedition in Northern Arizona that led to the insight for which he is best remembered.
Bankrolled by a $600 grant from his department, Merriam and a small team conducted a survey of plants and animals in the Flagstaff area. The survey extended from the San Francisco Peaks to the Painted Desert to the floor of Grand Canyon.
For several months, they worked from a series of remote base camps in the region. One, located about 20 miles north of Flagstaff, is today a National Historic Landmark.

Merriam (center), his wife Virginia, and staff members at the base camp near Flagstaff.
The team’s findings led Merriam to conclude that the changes occurring in flora and fauna as you gain altitude are the same as changes occurring as you travel north. Most naturalists at the time thought of “zones” in terms of eastern, central, and western.
Going further, Merriam identified seven “life zones” that support specific types of plant and animal life.
The zones, from highest to lowest in altitude:
1 – Alpine (arctic)
2 – Sub-Alpine (tundra)
3 – Hudsonian (spruce, fir)
4 – Canadian (mixed conifer)
5 – Transition (ponderosa pine)
6 – Upper Sonoran (grasslands)
7 – Lower Sonoran (desert)
Merriam said the zones are based on differences in temperature and humidity and are applicable everywhere.
In truth, it isn’t that simple. Other factors besides temperature and humidity affect the distribution of plants and animals. The direction in which a slope faces, for example, and the type of soil.
But Merriam’s general concept was quickly recognized as significant. Over time, a few tweaks were necessary, but his zone system remains in use today.
His work also tied in nicely with other thinking about species distribution that led to the new science of ecology.
During his research trips over the years, Merriam found that “the locals,” aka Native Americans, were valuable sources of information about the plants and animals he was studying. Eventually, he became interested in the tribes themselves, particularly those in California. He even picked up enough of several native languages to communicate with his contacts.
As the 20th Century arrived, the native populations were decreasing rapidly. Concerned that their knowledge, languages, and traditions were being lost, Merriam resolved to collect as much information as possible about the tribes before it was too late.
From about 1910 to 1939, leaving his previous scientific life behind, Merriam began collecting information about the tribes. Taking advantage of his notoriety, he also advocated for and assisted them.
Merriam collected vast amounts of data on 157 tribes and published much of it. Today, his field notes are housed in the Anthropology Museum at the University of California Berkeley.
He died in Berkeley in 1942, age 86.
Merriam was a dynamic, driven guy. He was, it seems, a bit flighty and erratic, but his curiosity always seemed to lead him down worthwhile paths.
He was a medical doctor, naturalist, zoologist, ornithologist, mammalogist, ethnographer, anthropologist, and more, always fully committed to the project of the moment.
A full and eclectic life that made a difference.
Impressive, indeed.
Leave a Reply