The Great Southeast Pollinator Census began in Georgia in 2019 with the goals of increased pollinator habitat, teaching the public the importance of insects, and providing useful data to researchers. 2024 is the first year for Florida to be included and we want to support this project with strong participation. View the webinar from the Northwest District Horticulture Team that teaches how to identify pollinators as well as how to collect and submit data for the 2024 Great Southeast Pollinator Census.
Goldenrod soldier beetles inadvertently transferring pollen while feeding on nectar and pollen grains. Photo by Grandbrothers, Adobe Stock.
Pollinators contribute to the reproduction of over 87 percent of the world’s flowering plants and are crucial for agriculture, with 75 percent of the different types of crops we grow for food relying on pollinators to some extent to achieve their yields. Perhaps most importantly, one-third of global food production is dependent on pollination.
While bees often take the spotlight in discussions about pollination, there’s a whole cast of lesser-known characters playing vital roles. From beetles, flies, ants, moths, and even birds and bats, a diverse array of creatures quietly ensures the fertility of our crops and the stability of our ecosystems.
Beetles as Pollinators
Beetles, often overlooked in the pollination process, play a crucial role as one of nature’s primary pollinators, especially for ancient flowering plants like magnolias and spicebush. These insects, which were among the first to visit flowers, are known as “mess and soil” pollinators due to their less-than-delicate approach. As they feast on petals and other floral parts, beetles inadvertently collect pollen on their bodies. They lack specialized structures for transporting pollen; instead, pollen grains adhere to their bodies as they move from flower to flower. The flowers that attract beetles tend to be large, bowl-shaped, and emit strong, fruity, or spicy scents to lure the beetles in. Despite their seemingly destructive behavior, beetles are essential for the reproduction of the plants they visit.
A fly lands on a saltbush, unintentionally aiding in pollination. Photo by Karan A. Rawlins, University of Georgia, Bugwood.org.
Flies as Pollinators
Flies, often dismissed as mere nuisances, are crucial pollinators. With their bustling activity around flowers, flies inadvertently transfer pollen from one flower to another as they search for nectar and other food sources.
Flies are particularly attracted to flowers with strong odors and dull colors, characteristics often overlooked by other pollinators. While they may not be as efficient or specialized as bees, flies make up for it in sheer numbers and ubiquity, contributing significantly to the pollination of a wide variety of plant species, including many crops essential for humans.
Moths as Pollinators
And then there are moths, the nocturnal counterparts of butterflies, silently pollinating flowers under the cover of darkness. Drawn to flowers with pale or white petals and strong fragrances, such as apple, pear, and cherry blossoms, moths play a role in pollinating various plant species, contributing to overall yield and quality of the harvest. Their long proboscis allows them to reach deep into flowers, accessing nectar sources that may be out of reach for other pollinators.
Ghost orchids (Dendrophylax lindenii) can provide shelter and nesting sites for arboreal ants, which in turn, may aid in pollination.
Ants as Pollinators
While ants are primarily known for their role as scavengers and defenders of their colonies, they also contribute supplementary to pollination of some plants in surprising ways.
In tropical forests, certain plants referred to as ant-plants or myrmecophytes, form close, sometimes obligatory partnerships with ants. These plants feature specialized hollow structures known as domatia, which serve as homes for ant colonies in exchange for protection and pollination services for the plant. Domatia vary by species, but can include stems, thorns, roots, stipules, petioles, or leaves. Some orchid species, such as the ghost orchid (Dendrophylax lindenii), which are native to Cuba and southwest Florida, provide shelter and nesting sites for an arboreal ant species called acrobat ants (Crematogaster ashmeadi). The ants, in turn, protect the orchids from herbivores and may aid in pollination.
Another strategy of some flowers is to develop nectaries on their exterior to entice ants, deterring other insects from stealing the nectar by accessing it from the side, thus compelling them to enter the flower in a manner more favorable for pollination. While ants can clearly contribute to pollination, researchers have also found that some ants secrete a natural antibiotic, which protects them from infections but harms pollen grains.
Birds as Pollinators
A juvenile male ruby-throated hummingbird serving as a pollinator as it flits from flower to flower, sipping nectar. Photo by Chase D’Animulls, Adobe Stock.
When we imagine pollinators, birds might not be the first creatures that come to mind. However, birds, comprising around 2,000 nectar-feeding species, play a significant role as pollinators among vertebrates.
Hummingbirds, with their tiny size and lightning-fast wings, are nature’s dynamos of pollination. Their slender bills and long tongues are perfectly adapted to extract the sugary nectar from flowers, inadvertently transferring pollen that adheres to their head and neck as they feed on other flowers. The ruby-throated hummingbird stands out as Florida’s prominent native bird engaged in plant pollination.
But it’s not just hummingbirds; other bird species, from sunbirds to honeyeaters, play their part in pollination too. Their behaviors, such as perching on flowers or probing deep into blossoms, can facilitate the transfer of pollen.
Bats as Pollinators
In the darkness of night, bats perform a vital ecological service: pollination. Particularly in tropical regions, bats have co-evolved with certain plant species, forming intricate mutualistic relationships. Surprisingly, over 500 plant species worldwide rely on bats for pollination, including important crops like agave, banana, cacao, guava, and mango.
Even insect-eating bats, such as this Brazilian free-tailed bat, can inadvertently contribute to pollination as it feeds on insects within flowers. Photo by Phil, Adobe Stock.
In Florida, all native bats are insectivores, primarily preying on insects such as mosquitoes, moths, and beetles. However, recent research suggests that insect-eating bats may even outperform their nectar-feeding counterparts in certain cases when it comes to pollination efficiency. As these bats feed on insects inhabiting flowers, they inadvertently spread pollen during the process, highlighting the diverse and sometimes unexpected roles bats play in ecosystems.
Recognizing and conserving all pollinator species, from birds and beetles to bats and ants, is crucial for maintaining ecosystem balance and ensuring food security. By promoting pollinator-friendly practices and habitat conservation, we can safeguard the intricate web of life that sustains us all.
Your UF IFAS Extension office in the Northwest District would like you to continue your break from mowing. We invite you to support the 2024 No Mow March campaign by pledging to let your wildflowers grow for pollinators. This can be throughout the yard or in one particular spot. During March our turfgrasses are still waking up and many of the flowering wildflowers that are growing offer food to active pollinators. We are seeing a wide variety of flowers including Toadflax, Common vetch, Lyre-leaved sage, White clover, Florida betony, and Blue violets to name a few. Take Our Pledge for pollinators.
Lyre-leaved sage, Florida betony, and White clover. Photo by Beth Bolles, UF IFAS Extension Escambia County.
If you are required to mow the lawn by a Homeowner’s Association, consider a different gardening activity to support pollinators. Container gardens are very attractive features in a landscape and you can select a wide variety of flowering perennials that pollinators enjoy. Many herbs like chamomile also grow well in containers and have flowers visited by native bees.
Your traditional landscape design with trees and shrubs can offer flowers for pollinators too. There are several native shrubs that bloom in March that would beautify any landscape. Consider native azaleas, Walter’s viburnum, Red buckeye, or Virginia sweetspire. If you need a low growing border perennial you might consider the native Woodland phlox or Blue eyed grass.
Native azaleas, Walter’s viburnum, and Red buckeye. Photos by Beth Bolles, UF IFAS Extension Escambia County.
Finally be aware that many native pollinators have nesting activity that is different from the more commonly known honeybee. During March, we see the small dirt piles with a center hole of the native mining bees. These are in lawns, mulch areas, and fields. These solitary bees make a small chamber to raise a few young bees that will emerge later in the year. They are not aggressive and activity is seen for a few weeks.
Whether you take a complete break from mowing or add some flowering plants to your March landscape, you can make a difference for pollinators. Learn more about the Now Mow March campaign by visiting https://go.ufl.edu/nomowmarch and even consider joining our INaturalist No Mow March site to upload your plant and pollinator sightings.
Plant names in today’s industry are not as simple as the established binomial (genus and specific) and a common name. Many of the plants that you get for your landscape are varieties, cultivars, and hybrids. To make matters more complicated, there are trade names that are given to plants to aid in marketing. We see the Endless Summer® hydrangea or Purple Pixie® Loropetalum. Throw into the mix the work of plant taxonomists who are always reclassifying plants and we can all be truly confused about a plant’s name.
Even as names change, it is still fun to learn plant names. Just recently, I sent plant pictures to the UF Herbarium to help get a clarification on the plant I was calling Georgia savory, Clinopodium sp. This is one of my favorite plants because it makes a spreading groundcover that grows about 1.5 feet tall and has tubular flowers in spring and fall. Many pollinators visit the flowers. It also grows well in sandy, well drained soil and thrives on occasional water. I have a single plant in my backyard that only gets water from rain and has grown to five feet wide over several years. It is definitely a low maintenance beauty.
My results back from the UF Herbarium did not completely clear up this plant’s name. There are reports that it is a hybrid of Clinopodium georgianum × Clinopodium ashei ‘Desi Arnaz’. Other information suggests that it is an intergeneric hybrid between Clinopodium and Conradina named x Clinadina ‘Desi Arnaz’.
The lesson from all this confusion is to just do your best. Realize that all of us can be mistaken on a plant’s name and even those that study plants in depth don’t always agree on a name. In the world of plant names, change can happen.
Centipedegrass is a low maintenance turfgrass for North Florida landscapes. Scientists from Georgia also found an added benefit when the grass is in flower. Learn about the specific insects found visiting the flowers of centipedegrass.
