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Golden Silk Orb Weaver

The Golden Silk Orb-Weaver (Trichonephila clavipes) is dreaded by hikers and bikers in the forest. Their sticky, golden webs, which can measure 6 1/2 feet in diameter, are spun in insect flight paths in open woods and at the edge of dense forests. You may run into them in your yard, where they are spun between trees and dense shrubs. The large webs catch flies, bees, wasps, moths, butterflies, male orb-weavers, and more. The prey is devoured by the spider, who is waiting patiently on the web.

Golden Silk Orb-Weavers are also known as Banana Spiders because of their yellow coloring. Their color variation, complete with furry-looking tufts on their legs, helps them blend into the forest. They are also known as Giant Wood Spiders because the females’ bodies are more than 1 1/2 inches and, including legs, can measure up to 5 inches in diameter. Males are significantly smaller, with bodies at about 1/4 of an inch.

The small males come out to mate between July and September. The females produce at least two egg sacs per year but have been known to produce up to nine. Each sac contains a few hundred eggs. The female often eats the male after mating.

Climate change has mildly affected these spiders’ behavior. Still, they have adapted by creating reflective carapaces and turning the cylindrical parts of their bodies towards the sun to reduce the heated body surface. They also reduce heat by holding a drop of water in their chelicerae (mouth-part) and allowing it to evaporate. This has allowed them to adapt very well to their environment.

The next time these little ones give you a scare, take a few minutes to appreciate their hard work. Golden Silk Orb-Weavers play an important role in our ecosystems. Orange and pecan farmers appreciate their cooperation in keeping pests away from harvests. These fascinating spiders provide insect control in our wild spaces and our yards.

Robin

Robins

* Robins prefer cooler temperatures, which is why they fly north to escape the southern heat.
* Robins will start to migrate back north when they feel a 37-degree average daily isotherm ( ground temperature above 37*).
* Male robins will arrive at their northern destinations about 2 weeks earlier than the females. This gives them time to claim their territory.
* Robins do not mate for life; however, the male will stay to help feed his chicks.
*Chicks leave the nest in August and live to be 5-6 years old.
* Robins begin to migrate south when the temperature causes the ground to become too hard to dig for earthworms, their main food source.
* Robins will resort to eating berries and insects until that food supply starts to dwindle.
* During migration, robins can fly up to 36 mph and cover 100-200 miles a day.
*Winter months are spent in Florida, southern Louisiana, southern Texas, southern Arizona, southern New Mexico, Southern California, and northern Mexico.
* Most robins migrate intermediate distances but some have migrated from Vancouver to as far south as Guatemala.

As the temperature warms in our neighboring states, robins will begin to make their way across Florida. Keep an eye on your birdbath. A flock of robins just might stop by for a quick dip and drink.

Coral Reef

—-Coral Reef—-

Florida is the only state in the continental United States with a shallow coral reef near its coast. Coral reefs create specialized habitats that provide shelter, food, and breeding sites for numerous plants and animals.

Florida Cracker Horse

The Florida Cracker Horse is a valuable and vital part of Florida’s heritage. While still rare, there are over 1,000 registered horses, which continues to grow yearly. The Florida Cracker Horse traces its ancestry to Spanish stock brought to Florida in the 1500s. They were given their name from the sound of the whips cracking as they worked cattle.

The Florida Cracker horse exhibits great endurance in an unfavorable environment. This horse exemplifies great patience and strength. The Cracker horse can work all day and night, traveling without additional care requirements. When the horses were left to roam freely, they evolved due to natural selection. They were tempered and molded by a challenging environment. In addition to playing an important role in the lives of Seminole Indians, they eventually helped Florida become a state of agriculture and ranching.

Through the efforts of several private families and the Florida government, the breed was saved from extinction, but there is still concern about its low numbers. The breed’s low numbers are considered to be at a critical point. The state has three small herds in Tallahassee, Withlacoochee State Forest, and Paynes Prairie State Preserve. The state maintains two lines for breeding and the line that roams the Paynes Prairie State Preserve for display purposes. By 1989, these three herds and around 100 other horses owned by private families were all that remained of the breed. The population is considered “critical,” meaning that there are between 100 and 300 active adult breeding mares in existence today.

Effective, July 1, 2008, the Florida House of Representatives declared the Florida Cracker Horse the official state horse.

Photo Credit: Kerry Waldo

Bald Eagle

The Bald Eagle, Haliaeetus leucocephalus, is more than the symbol of the United States. They are interesting enough to have an entire day dedicated to them. While Save the Eagles Day originated as a way to raise awareness about the then-endangered species, it now serves as a time to learn about the thriving animals. Here are five facts you may not know about eagles:

1. Females weigh more than their male counterparts. The males weigh between 7 and 10 pounds, and females can weigh up to 14 pounds.

2. Eagles can see as much as eight times further than humans, and their eyes are equipped with infection-fighting tears.

3. While the bald eagle population has steadily increased after a severe drop, most of the population’s fatalities remain human-related. Impacts with manmade structures, gunshots, and poisoning are the leading causes of death.

4. The Bald Eagle emits a surprisingly weak-sounding call. Usually, a series of high-pitched, whistling, or piping notes. The female may repeat a single, soft, high-pitched note that signals her readiness to copulate.

5. Eagles can dive up to 100 mph while hunting. When they’re flying casually, they go about 30 mph.

The bald eagle, the national bird of the United States, was once on the endangered species list, being on it from 1967 until 1995. It was then reclassified as being threatened. The Eagle was subsequently removed from that list in 2007 and is now listed in the least concern category.

The bald eagle is strongly associated with the United States, but eagles are on the coat of arms of Germany as well as on Egyptian and Albanian flags and coats of arms.

If you live near eagles, advocate protecting their habitat. The bald eagle is another example of a species brought to the brink of extinction that is now thriving.

Photo credit: David Gale and Aymee Laurain

Florida mouse

The Florida mouse (Podomys floridanus) is the State’s only endemic mammal. This mouse is a microhabitat specialist, centering its activities on gopher tortoise burrows in sand pine scrub or longleaf pine, turkey oak habitats. Florida mice construct their own burrows within the larger burrow of the gopher tortoise. Each adult female mouse uses about two tortoise burrows, alternating her residency with successive litters. Females begin to breed when they reach a weight of approximately 27 grams. Litter size is between 2-4 and the young mature very slowly. Occasionally two adult females will use the same tortoise burrow. Their diet consists of crickets, ticks, fruit, seeds, and berries. A baby of a Florida mouse is called a pinkie, kitten, or pup. The females are called does and the males are known as bucks. A Florida mouse group is called a nest, colony, harvest, horde, or mischief. They are listed as Vulnerable, considered to be facing a high risk of extinction in the wild. It is on the IUCN Red List of Threatened Species. They are not on the federally protected species list. They average between 5 to 8 inches long, and their tails are between 2 to 3.5 inches long, weighing between 1/2 ounce to 1 ounce. The Florida mouse has soft silky fur that is brown or brownish-orange in color. Its underparts are white. Their ears are large and furless. Their tails are long, and their back paws are large in size and have 5 pads. Their teeth are sharp, and they use them for gnawing. They are nocturnal, resting in their nest during the day and active at night searching for food. They communicate by emitting high-pitched squeals, and when they are excited, they thump the ground with their front paws producing a drumming sound. The Florida mouse also has a distinctive odor, almost like a skunk. They are also known to carry several diseases such as hantavirus pulmonary syndrome, salmonellosis, leptospirosis, and tularemia, which can be transmitted to humans.
If one should enter your house, be sure to use a live trap and release the Florida mouse outside where Nature intended.

Florida Worm Lizard

The Florida Worm Lizard (Rhineura floridana) is neither a worm nor a lizard. It is the only member of the genus Rhineura. This odd little creature has no eyes. It spends most of its time underground and does not need vision. In the event of heavy rain, you may see these odd fellows above ground. They feed on any invertebrate they can, including spiders, earthworms, maggots, and ants. To make them even weirder, they are sex-less in that they are neither male nor female. They reproduce by a process called parthenogenesis. This means that they basically make clones of themselves. A benefit of this method is that they do not need to find a mate which could be difficult when you spend your life in the dirt. Our most common ancestors are the Amniota. This section of our clade represents animals that develop from an egg, either internal or external. The Florida worm lizard may not be the cutest creatures, but we think there is something lovable about these unique little underdogs.

Florida Grasshopper Sparrow

The Florida Grasshopper Sparrow (Ammodramus savannarum A. s. floridanus) is one of the most endangered birds in Florida, with less than 50 breeding pairs left in the wild. A subspecies of the Grasshopper Sparrow, the Florida Grasshopper Sparrow, has darker and more gray tones in its plumage and is the only grasshopper sparrow that breeds in Florida. They weigh no more than one ounce as adults. Their coloration and habit of living and nesting in the grass make them almost invisible. The sparrow forages on the ground for small invertebrates, grasshoppers, and seeds. The Sparrow’s nest is concealed under vegetation. Still, they are extremely vulnerable to predation by snakes, birds of prey, crows, rodents, raccoons, skunks, armadillos, opossums, coyotes, fire ants, and box turtles. Females incubate three to five eggs for approximately 12 days. Chicks leave the nest at around eight days old but will stay in the area and be fed by the parents for a few weeks. The Florida Grasshopper Sparrow’s decline began in the 1970s when native prairie grasslands were converted to cattle grazing pastures, sod production, and other agricultural uses. The Florida Grasshopper Sparrow responds well to restoration efforts. Current conservation efforts in Florida to restore native grasslands and breeding programs may help this critically endangered bird recover.

Coyote

The coyote (Canis latrans) is a medium-sized omnivore. The average size of a coyote in Florida is about 28 lbs. Fossils of their remains have been found in Florida as far back as 2.6 million years ago. Due to the annihilation of the red wolves in Florida, coyotes are thriving. They are also stepping up to the plate to carry out the ecological task previously carried out by the red wolves. The role of a tertiary predator is important in maintaining balance and order in an ecosystem. They do this by regulating the trophic levels below them. If there are too many primary consumers, the vegetation can be depleted, causing soil and water problems. If there are too many secondary consumers, the primary consumer population can deplete, resulting in overgrowth. If prey isn’t available, coyotes adapt by eating vegetation.

February is part of the mating period. I suppose you could say Valentine’s Day is a romantic time for Coyotes as well as humans. After about a 63 day gestation period, the females will give birth. They will have to rely on the male to provide food for the mother and pups. The pups start weaning between April and May. This is done by eating the regurgitated food of their parents. By July, they are eating solid food. They begin hunting in August and will be ready to venture out on their own by December.

Coyotes are often called “song dogs” because of their variety of sounds. People frequently overestimate the number of coyotes in an area due to their singing. The phenomenon of hearing multiples is called the Beau Geste Effect. This term means “fine gesture” in French and comes from a book published in 1924. The story explains how a group of brothers used dead soldiers to give the illusion of several soldiers in an attempt to intimidate approaching forces.

Coyotes get a bad reputation, but with human behavior changes, we can learn to coexist with them. Don’t leave food out for other animals. Walk dogs on a short leash if you know coyotes are around. Secure trash. Keep your yard clear of any debris they could use as a den: secure livestock and their feed. If you see coyotes, make a loud noise to scare them away. As we learn to live with coyotes, we can learn to appreciate the role they play in keeping Florida’s ecosystems healthy.

Coyotes are a perfect example of an omnivore because they will eat almost anything. Their meals consist of plants, berries, dead things, insects (they love bugs), rodents, foxes, small animals of any kind including birds, small livestock, cats and small dogs, and of course, human and pet food!

Unlike wolves, coyotes do not hunt in packs. However, they will hunt with family members until their siblings go on their way.

Why are we seeing more coyotes in Florida? Humans have killed most of the wolves. Because wolves are now nearly extinct in Florida, coyotes have moved in and become king of the hill. They have no natural predators and will coexist in the wild with other animals, including panthers and bobcats. Coyotes love open grassy areas where rodents and other small animals live. Since man has cleared out many forests to make way for ranching and farming, the coyote has a free-range with plenty of food.

An adult coyote weighs 25 to 40 lbs. At times they may appear to be starving and seem very thin. This is their body build. Since they are extremely adaptable to almost any environmental condition and will eat almost anything, there is never any worry about coyotes finding enough food. When coyotes inhabit a new area, their population will grow quickly. Five to six pups may be born in a single litter. Once an area is established, the coyote population will level off.

Can we send them back to their original range? It has been tried in many states for hundreds of years, and the answer is no. Snare traps will most likely catch some other wild animal or someone’s pet before it captures a coyote. Two Florida black bears were found dead with coyote snares around their necks here in Central Florida. If we kill them, coyotes will just have more pups to repopulate the area quickly. Unless we reintroduce their natural predator, the red or grey wolf, and allow nature to take its course through Trophic Cascade, coyotes are here to stay.

What can you do to keep them wild and in the forests or uninhabited areas? We use the same techniques for coyotes as we do for our amazing Florida Black bears. Take in pet food and bird feeders, secure all attractants, scare that coyote if it is in your yard by yelling at it, making loud noises, etc. Never leave small pets outside unattended. Coyotes don’t know the difference between a small cat or dog and any other prey. It’s our responsibility as pet owners to keep pets safe.

Let’s learn to respect nature, and not fear it, to coexist and not destroy it.

Black Vulture

The Black Vulture, Coragyps atratus, is smaller than the Turkey Vulture, although it still is a large raptor. They have a dull black head and body with wrinkles covering their head and face. The tips of their bills are gray, and their legs are pale white. Black Vultures have a wingspan of 54 inches, and their wings have white tips on the underside. They weigh 3 to 5 pounds and stand 22 inches tall. While in flight, they will hold their wings flat and flap them more often than the Turkey Vulture.

Black Vultures are monogamous, often not straying far from their mate. Females will lay 1 to 4 egg clutches between February and June in caves, hollow logs, or thickets. Although they do not build nests, they will dig a hollow and put vegetation around to secure. The nesting period can be up to 100 days, with the eggs hatching within 40 days. Together, they will feed their young for up to 8 months. This dependence helps establish the strong social bonds these birds exhibit.

As carrion eaters, they are often found in landfills or along roadways where they feed on roadkill. They will usually return to known food sources instead of actively hunting. Black Vultures do not have the keen sense of smell that other vultures have and must find their food by sight. You will find them roosting in tall trees or on electrical pylons where they can easily spot food in open areas.

The Black Vulture is protected under Federal Law and can not be killed without a permit from the US Fish and Wildlife Service.

Photo Credit: Dan Kon

Cooper’s Hawk

The Cooper’s hawk (Accipiter cooperii) is widely known and dispersed throughout the U.S., lower Canada, and Mexico. Look for this raptor with its steel-gray back and reddish barred chest in wooded areas and in neighborhoods. This stealth hunter can be seen flying through thick canopies of trees or gliding low to the ground to grab its prey in a split second. Medium-sized birds such as robins and jays make up most of their diet, They will also dine on rats, mice, squirrels, bats, and an occasional lizard or snake.

Male Cooper’s hawks build the nest in a tall tree. Brood size is 2 – 6 eggs. Males provide food for the female and chicks for more than 3 months until the young fledge. Cooper’s Hawk eggs and hatchlings are susceptible to being food for other animals like raccoons and raptors. When there is a threat near their nest, you will hear them ka-ka-ka-ka.

The Cooper’s Hawk was declining in population throughout the U.S. due to hunting and pesticide use. Since DDT has been banned and hunting has been curbed, populations have become stable.

Cooper’s Hawks will often take up residence in a neighborhood where birdfeeders are present. If a Cooper’s Hawk is finding easy prey with the birds at your feeder, remove the feeder until the hawk has moved on.

Photo Credit: Dan Kon

Gulf Fritillary Butterfly

The Gulf Fritillary Butterfly (Agraulis vanillae) can be seen playfully frolicking throughout Florida from forest floors to urban landscapes. The life of a Gulf Fritillary usually starts as the tiny larvae emerge from their eggs, which the mother usually lays on a passionflower vine. This little red caterpillar with black spikes quickly begins munching on the passionflower leaves. In about 20 days, the caterpillar goes into its chrysalis to pupate. You can see in this first picture the Chrysalis is forming by breaking the skin. The exoskeleton of the caterpillar will form the chrysalis, which looks like a dried leaf. This camouflage helps protect the caterpillar during this vulnerable stage. In about 5 days, the butterfly will emerge with its beautiful red, black, and white wings. When the butterfly is ready, it will search for a mate who will help bring about the next generation of Gulf Fritillaries. These butterflies can mate while in flight, and it can be fascinating to watch their graceful dance.

Black Soldier Fly

Many confuse the black soldier fly (Hermetia illucens) with wasps. However, like many other flies, this species only has two wings, while wasps have four wings and do not have a stinger. The black soldier fly produces a loud buzzing sound when flying, which may concern people, but they are not dangerous. Black soldier flies usually gather around decaying organic matter such as animal waste or plant material. Eggs are laid in decay matter since it is a food source for the larvae. Black soldier fly larvae have been used to reduce animal manure in agricultural facilities. Even though they are not considered a disease vector, adult soldier flies are potential mechanical vectors of many pathogens.

The black soldier fly is abundant in the southeastern United States during late spring and early fall. The natural breeding sites for black soldier flies are carrion; they lay their eggs in moist organic waste. In urbanization areas, they will lay eggs in dumpsters or compost, providing similar orders and nutritional needs to naturally occurring organic matter.

Adults come in a variety of colors, from yellow, green, black, or blue; some can have a metallic appearance. Adults can measure from 15 to 20 mm in length. The antennae are long with three segments, and the legs have white coloration near the end of each leg. Mating starts two days after they emerge from the pupal case. Males will gather in areas where females will be abundant, known as lekking sites. The sites are defended against other males. Females lay up to 500 eggs! These eggs will be laid in cracks and crevices near or on decaying matter. Eggs will hatch in about four days.

The larvae are a dull, whitish color with a small, projecting head containing chewing mouthparts. There are six instars, and it takes up to 14 days for complete development. During their development, like many other larvae species, the black soldier fly larvae are insatiable feeders. When adults, they do not feed and rely on fats stored from their larval stage.

Before pupation, the fifth instar larvae will leave its feeding site to dryer areas, then pupation will start, the exoskeleton darkens, and a pupa develops. Pupation lasts for two weeks.

Cool Fact! Black soldier fly larvae generate good sources of protein and oil for animal feed; they also have the potential to improve organic waste into rich fertilizer.

Photo Credit: Dan Kon

Author: Destiny Alvarez – Fisheries and Wildlife Sciences, University of Oregon

American Alligator

American Alligators (Alligator mississippiensis) are found across Florida. These large, water-dwelling reptiles have a powerful bite and should be treated with extreme respect. They will generally seek to swim away if approached. However, if they think their young are in danger or if they feel threatened, they will strike out at the perceived danger. Alligators have round snouts, range between 9.5 to 15 feet, weigh as much as 1000 lbs. and have a maximum speed of 20 mph in the water. The alligator is a rare success story of an endangered species not only saved from extinction but that is now thriving. State and federal protections, habitat preservation efforts, and reduced demand for alligator products have improved the species’ wild population to more than one million today. They live nearly exclusively in freshwater rivers, lakes, swamps, and marshes. The hatchlings are usually 6 to 8 inches long with yellow and black stripes. Juveniles fall prey to dozens of predators, including birds, raccoons, bobcats, and other alligators, so they will stay with their mothers for about two years. They are opportunists and will eat just about anything, carrion, pets, and, in rare instances, humans. They feed mainly on fish, turtles, snakes, and small mammals. Adult alligators are apex predators critical to the biodiversity of their habitat.

Alligators get a bad reputation, but as long as we respect them from a distance, we have no reason to fear them. Alligators have ears directly behind their eyes. Do you see that part that looks like this alligator’s eyes are smiling? That’s its ear. The structure of the ear is designed to pinpoint sound rather than hear a vast amount of sound.

Female alligators lay between 32-50 eggs. If these eggs are hatched in the wild and not a hatchery, there is a chance that only a few eggs will survive. Predators such as birds, snakes, raccoons, otters, bobcats, bass, and other alligators can eat their eggs. According to FWC, an average of 25 eggs will hatch, but only about 10 alligators will survive their first year. These eggs and small gators become food so that other species can survive. In turn, large alligators may eat these same animals to ensure their survival. It’s all about balancing out populations.

If you see an alligator, don’t touch it. Take a few pictures and observe from a distance. In most cases, if you get too close, an alligator maybe become afraid and swim away. Alligators wait patiently for animals to come near and then use all their energy at once to take down their prey. This is one way they conserve energy.

Check out this awesome video about alligators that is written and produced by IOF volunteers and Valencia students Samantha Householder and Sydney Householder. https://www.youtube.com/watch?v=mKS-8XOAzdQ

Osprey

The Osprey (Pandion haliaetus) is a medium-sized bird of prey that is commonly seen along with coastal habitats within Florida. These birds, also called the Fish Hawks, have a brown upper body, white underside, and a black line across their eyes. They can reach 2 feet in length and have a 6-foot wingspan. These raptors hunt for food by using their keen senses, especially their vision, and kill prey with their talons. This is the only raptor with a reversible toe that can grasp prey with two toes in front and two toes in the back. They will soar high above their prey and dive feet first often submerging themselves to catch their prey. Their feet are barbed to be able to hold on to slippery fish. Osprey nests are large platforms built mainly of large sticks, sod, and grasses high above the ground although they will use any high man-made structure. A female Osprey will be attracted to the male that can provide the best nest. Osprey mate for life and will have between 2 to 4, creamy white blotched brown eggs a year. The eggs do not hatch all at once but will hatch 3 to 5 days apart. They fledge at 8 weeks and reach sexual maturity at 3 years of age. Because of its highly visible nest, the Osprey is a prime indicator species that can be used to monitor habitat conditions, fish populations, and overall environmental health.

Fun Fact: An extinct species of osprey, the Pandion lovensis, was discovered through fossils here in Florida. The fossils dated back to the Tortonian stage of the late Miocene sub-Epoch of the Clarendonian age. That’s about 9 million years ago. At that time Florida was an island that spanned from the eastern Panhandle and curved down a narrow stretch of the gulf coast to central Florida. During this time temperatures were dropping and the Earth was entering the ice age known as the Quaternary glaciation. This process took approximately 3 million years in which average global temperatures dropped to between 4-7 degrees Celsius. Not all areas had ice. Florida was much cooler but was not part of the freeze. Despite the lack of a freeze, colder conditions may have prevented the ability of Pandion lovensis to survive.