Author Sheila Dunning removes tree from nursery pot and prepares for planting. Photo courtesy of UF/IFAS Okaloosa County Extension
The best time to plant a tree is twenty years ago. The second best time is Arbor Day 2014. Florida recognizes the event on the third Friday in January, so the next one is January 17, 2014.
Arbor Day is an annual observance that celebrates the role of trees in our lives and promotes tree planting and care. As a formal holiday, it was first observed on April 10, 1872 in the state of Nebraska. Today, every state and many countries join in the recognition of trees impact on people and the environment.
Trees are the longest living organisms on the planet and one of the earth’s greatest natural resources. They keep our air supply clean, reduce noise pollution, improve water quality, help prevent erosion, provide food and building materials, create shade, and help make our landscapes look beautiful. A single tree produces approximately 260 pounds of oxygen per year. That means two mature trees can supply enough oxygen annually to support a family of four.
The idea for Arbor Day in the U.S. began with Julius Sterling Morton. In 1854, he moved from Detroit to the area that is now the state of Nebraska. J. Sterling Morton was a journalist and nature lover who noticed that there were virtually no trees in Nebraska. He wrote and spoke about environmental stewardship and encouraged everyone to plant trees. Morton emphasized that trees were needed to act as windbreaks, to stabilize the soil, to provide shade, as well as, fuel and building materials for the early pioneers to prosper in the developing state.
Sheila works with homeowners to properly install trees. Proper size holes and correct height are important considerations. Click image to learn more. Photo courtesy of UF/IFAS Okaloosa County Extension.
In 1872, The State Board of Agriculture accepted a resolution by J. Sterling Morton “to set aside one day to plant trees, both forest and fruit.” On April 10, 1872 one million trees were planted in Nebraska in honor of the first Arbor Day. Shortly after the 1872 observance, several other states passed legislation to observe Arbor Day. By 1920, 45 states and territories celebrated Arbor Day. Richard Nixon proclaimed the last Friday in April as National Arbor Day during his presidency in 1970.
Today, all 50 states in the U.S. have official Arbor Day, usually at a time of year that has the correct climatological conditions for planting trees. For Florida, the ideal tree planting time is January, so Florida’s Arbor Day is celebrated on the third Friday of the month. Similar events are observed throughout the world. In Israel it is the Tu B Shevat (New Year for Trees) on January 16, 2014. Germany has Tag des Baumes on April 25. Japan and Korea celebrate an entire week in April. Even, Iceland, one of the most treeless countries, in the world observes Student’s Afforestation Day.
Trees planted on Arbor Day show a concern for future generations. The simple act of planting a tree represents a belief that the tree will grow and some day provide wood products, wildlife habitat erosion control, shelter from wind and sun, beauty, and inspiration for ourselves and our children.
Trees provide us with many benefits: Across multiple generations they provide beauty, stormwater and sound abatement, and of course fresh air and oxygen. Photo by Sheila Dunning.
“It is well that you should celebrate your Arbor Day thoughtfully, for within your lifetime the nation’s need of trees will become serious. We of an older generation can get along with what we have, though with growing hardship; but in your full manhood and womanhood you will want what nature once so bountifully supplied and man so thoughtlessly destroyed; and because of that want you will reproach us, not for what we have used, but for what we have wasted.”
Check into the lodge at Wakulla Springs State parkon a crisp cool evening and you are immediately greeted with the warmth of an open hearth fireplace and the security of stone walls radiating comfort and solace. These stately accommodations meet all your needs for refuge and rejuvenation with opportunities for an old fashion game of chess or checkers, great food, and time to reconnect with cherished friends and family.
Wakulla Springs Lodge offers guests warmth and rest from the winter’s cooler weather just like the springs offers manatees refuge on winter’s coldest days. (Photos by L. Scott Jackson)
Wakulla Springs hosts about 200,000 visitors each year and is one of North Florida’s most popular swimming spots with peak attendance between April and August. It’s a great place to beat the heat on a hot summer’s day. The same cool 250 million gallons of 69F degree water that provides welcome relief to visitors on hot summer’s day also provides an inviting warm refuge on winter’s coldest days to another type of park guest, manatees.
Wakulla Springs is the Gulf of Mexico’s northernmost geographic location where manatees congregate and consistently overwinter in large numbers. Last week, park guides estimated 30 individuals in the springs and river run.
Florida Fish and Wildlife Conservation and Commission / Florida Wildlife Research Institute’s winter synoptic aerial survey of Florida’s manatees in 2011 totaled 4,834 individuals. Improved survey techniques have resulted in increased estimates for Florida manatees in recent years, however, they still remain listed as endangered.
Daily river cruises on the Wakulla River are a great way to see manatees and other unique wildlife. (Photo by L. Scott Jackson)
Consistent water temperatures below 65F can result in stress, pneumonia, or colds in manatees. Other environmental conditions can also cause problems for manatees. This year, a large number of Florida manatee moralities have been reported as a result of a harmful algal bloom on the Atlantic Coast in the Indian River Lagoon. Florida manatees are also frequently struck by boat hulls and boat motor propellers; the signs of which are often seen in individuals with tell-tale propeller scars.
Education and stewardship are two of the best ways to help manatees. You can connect with these Florida ambassadors locally on a Wakulla Riverboat Tour at the State Parkor through outfitters that provide kayaks and local guiding knowledge. Simple changes in home practices that protect water quality also protect the water resources used by manatees and other wildlife. Observing manatee protection zones and reducing boat speedalso have been shown to reduce the impact of boating activities on manatees. To report sick or dead manatees, please call the FWC Wildlife Alert Hotline at 888-404-FWCC (3922).
Read more manatee facts in the following UF/IFAS publication: Life in the Sea.
This past October, the Florida Fish and Wildlife Conservation Commission held the first state lionfish summit in Cocoa Beach. Researchers, fishery managers, divers, fishermen, and the general public received research updates, discussed current issues, and provided input regarding future management needs. Here are a few of the interesting highlights from the summit.
Red Lionfish Photo: Florida Sea Grant
What are the potential problems?
Several theories on how lionfish were initial released into state waters have been suggested. However, research results now indicate a single introduction of lionfish in Florida initiated the invasion into the Western Atlantic presumably from just a few aquarium specimens.
Sixty-thousand lionfish continue to be imported into the state each year.
Compared to native Pacific population, Florida densities of lionfish are much higher; 400 fish/hectare in Florida compared to 80 fish/hectare in the Pacific. On average, invasive Atlantic Lionfish individuals are larger than the native populations in the Pacific basin.
Studies from Pensacola showed that lionfish population has doubled annually since 2010 and lionfish densities are highest on artificial reefs.
Invasive lionfish have no natural predators and may spawn 30,000 – 40,000 eggs every 2 to 4 days.
Another potential problem reported are records of lionfish entering the Loxahatchee and Indian Rivers; indicating that they are able to move into brackish water.
What are the negative impacts?
Young lionfish feed primarily on crustaceans and when they are older they prey on reef fish. Research and stomach analysis indicate 70 different reef fish species as potential prey. Lobster fishermen in the Keys found lionfish are the leading by-catch species and have reduced lobster harvest by as much as 50%. Another study indicates lionfish on natural reefs they prefer blennies. However, on artificial reefs they feed on small snappers, sea bass, and groupers. Finally, an interesting study compared primary reef predators. Reefs with only grouper there was a 36% decrease of juvenile fish while reefs with lionfish the decrease was 94%.
What can be done?
Several reports indicate that collecting tournaments are effective; Lad Akins of Reef Environmental Education Foundation (www.reef.org) reported a 69% reduction of lionfish from one event in Key Largo. Another study had similar results but indicated that some spear fishermen were more successful than others, suggesting training may be required to increase efficiency.
Other reports indicate that work where native fish were introduced and conditioned to consume lionfish have led these native predators to follow and even bite divers thinking that “free food” may be available; it was suggested that this idea not be pursued.
Locally, lionfish rodeos sponsored by Emerald Coast Reef Association occur frequently in Okaloosa County. Escambia County Marine Resources hosted a pilot event this summer. Escambia will begin a full lionfish control program in 2014. If you have questions or comments, please contact your local UF/IFAS natural resource or Sea Grant Extension Agent.
Please note: UF/IFAS and Florida Sea Grant does not organize volunteers to participate in local lionfish control events; this is done by independent community groups. UF/IFAS and Florida Sea Grant provides this information about food safety concerns associated with eating lionfish. Click here for more information.
“Imitation is the sincerest of flattery,” wrote Charles Caleb Colton. Colton was a sometimes cleric, essayist, wine merchant and gambler who bounced around Europe and North America during the early nineteenth century. It is likely many of his financial lenders hoped the public would not imitate his borrowing practices.
Aside from his few literary works and the catchy phrase above, he was most noted for running up debts then leaving for parts unknown.
Eye spots on a Luna Moths wings are meant to deceive potential predators into believing they are seeing another predator. Photo by Les Harrison.
Imitations are not looked upon kindly when lazy students, or journalists for that matter, complete an assignment by borrowing blocks of text. Plagiarism is a flunking and firing offense with career-ending potential.
The concepts of imitation and mimicry date back to the earliest written records of ancient Greece. The philosopher Plato used mimicry to define beauty and truth, and as a contrast to the negative aspects of life.
For the denizens of north Florida’s untamed regions, mimicry is a form of imitation which assures the survival of some. Survival always beats the alternative.
Insects are particularly effective at using several forms of mimicry to survive and reproduce in a very hostile environment where big hungry creatures always are on the prowl for their next meal. Eyes and disguise are the top tactics for continuation of the species. Multiple eyes on the bug’s face are common in the insect world. Large, eye-like spots on the rear of the bug are an effective form of defensive mimicry used by several local caterpillars species.
The saddleback caterpillar is a good example of how this deception is carried. There are two color-coordinated eye-like spots on the rump of this caterpillar. These spots are exponentially larger than the saddleback’s real eyes, which are barely visible without the aid of magnification. An approaching predator will quickly notice the blankly staring spots and likely recall the last encounter with this appropriately named creature.
Mature larvae of the saddleback caterpillar, Acharia stimulea (Clemens). Photo by Lyle J. Buss, University of Florida.
It is worth noting the saddleback caterpillar has more defensive weapons systems than an Ageis missile cruiser. The novice predator that attempts to dine on this colorful, plump morsel will always remember the experience.
In addition to insects and caterpillars, some spiders have eye-spots on their thorax. Depending on the circumstances, the hunter can easily become the hunted.
Juvenile water moccasins or cottonmouths are brightly patterned with a yellow tail tip that they wiggle mimic insects attracting small prey such as lizards, toads, and frogs. Photo courtesy of J. D. Wilson and the University of Georgia.
Another mimicry tactic is camouflage, the ability to blend into the background and avoid detection. Millions, if not billions, of dollars of hunting clothing is sold annually to provide deer and turkey hunters that perceived advantage over their potential trophy animal. Moths are quite adept at using this technique to hide in plain sight. In the wild they almost always rest or lay eggs on surfaces which closely resemble their color scheme.
The last form of mimicry occasionally seen is the lure. This method attracts the prey to its demise. A prime example is employed by young water moccasins which have a sulfur-yellow tipped tail. The tail is shaken to resemble a wounded insect as the snake hides in the leaf litter. The unwitting victim is surprised, no doubt, to discover its status as a menu item.
