Polk County Highlands
Lake Wales Ridge, Lakeland Ridge, Winter Haven Ridge, Lake Henry Ridge, The Bombing Range Ridge
The Lake Wales Ridge, which stretches through Polk and two neighboring counties along the U.S. 27 corridor and contains prehistoric dunes that sometimes rise to more than 300 feet above sea level, is one of the most prominent geologic features of central Florida. It receives and deserves a lot of recognition because of its size and the large number of rare and endangered species found there.
However, Polk’s other, smaller ridges—the Bombing Range, Lake Henry, Lakeland and Winter Haven ridges–deserve notice and protection on their own.
The Lakeland Ridge, also known as the Lakeland Highlands, contains the characteristic rolling terrain found in the more scenic ridge areas in Florida with elevations ranging from 150 feet to 250 feet above sea level, similar to the elevation of many sections of the Lake Wales Ridge.
Very little of its original natural habitat remains having given way to citrus groves originally and later sprawling subdivisions. The only preserve here is Polk County’s Lakeland Highlands Scrub.
The Winter Haven Ridge, whose elevation is around 150 feet above sea level, has also been heavily developed and planted in citrus, but still contains some open spaces and publicly owned ecological features and at least one endangered species not found on the Lake Wales Ridge.
That is a rare, pink-flowered lupine that is called Scrub Lupine or McFarlin’s Lupine in honor of James Brigham McFarlin, a local botanist who collected plant specimens all over Polk in the 1920s and 1930s and was the first person known to have considered this lupine a unique species, though it was not formally described as a new species until 1982.
It is found at a state-managed site called Lake Blue Scrub near Auburndale and a federally managed site near Lake McLeod in Eagle Lake and may persist at an overgrown scrub site in southern Winter Haven owned by the City of Winter Haven.
In addition, a species of beetle previously unknown to science was discovered several years ago at the Lake Blue site and that appears to be the only place on the planet this species exists.
The Lake Henry Ridge (some references refer to the namesake lake as Lake Hendry) lies in the uplands surrounding Alturas between Fort Meade and Frostproof and contains elevations between 150 feet and 200 feet above sea level. It is occupied primarily by citrus groves and rural homesteads. Bowlegs Creek, a Peace River tributary, runs through a portion of this ridge. There are no publicly owned conservation lands here, but a small site owned by the Green Horizon Land Trust lies in the general area.
The Bombing Range Ridge lies in eastern Polk County near the Kissimmee River and Lake Kissimmee. Its elevation rises only up to around 120 feet above sea level. Some of it lies within the federally managed Avon Park Air Force Range, which is also a vast natural area. The rest is a mix of public land, existing conservation easements and some other private lands sought for preservation.
Plants of the Lake Wales Ridge
THE FLORIDA SCRUB JAY
The round-headed, blue and gray Florida Scrub-Jay is the only bird species that lives exclusively in Florida, where it occurs in patches of low-growing scrub oak in sandy soils. It perches tall with its long tail hanging down or boldly hops on the ground burying acorns. This social bird forms extended family groups: the young from previous years help their parents at subsequent nests until they can get a territory of their own. Extensive development and habitat fragmentation in Florida threaten this bird’s already small population, placing it on the federal endangered species list.
- The Florida Scrub-Jay is a cooperative breeder. When the offspring leave the nest, instead of going off to raise young on their own they stay with their parents and help them raise next year’s brood.
- Individual members of a Florida Scrub-Jay family take turns watching for hawks while the rest of the family looks for food. If a dangerous hawk is seen, the sentinel gives an alarm call and everyone dives for cover. A different call alerts the family to ground-level dangers such as snakes. The entire family will join in mobbing a predator.
- Florida Scrub-Jays are homebodies; they don’t migrate, rarely move more than a few miles from where they hatched, and they don’t like to move across areas that aren’t scrub oak. Increased fragmentation of their habitat means that Florida Scrub-Jay populations are now very isolated. Jays from the Atlantic Coast, central Florida, and southwestern Florida have different vocalizations despite being separated by less than 100 miles.
- Most of what we know about Florida Scrub-Jay behavior and habitat management is the result of more than half a century of research by teams of scientists at Archbold Biological Station in Lake Placid.
- The oldest recorded Florida Scrub-Jay was at least 15 years old when it was recaptured and rereleased during banding operations in Florida in 1990.