by Rick O'Connor | Jul 2, 2020
Cooters are one of the more commonly seen turtles when visiting a freshwater system. They are relatively large for a freshwater turtle (with a carapace about 13 inches long) and are often seen basking on logs, rocks, aerator pumps, you name it – and often in high numbers while doing so. They spook easy and usually leap into the water long before you reach them. But because of their beautiful smooth shells and large size, they can be seen from a distance – looking like wet rocks on a tree limb.
A “River Cooter” seen basking on a log in Blackwater River.
Photo: Molly O’Connor
They are in the genus Pseudemys (same as the Florida red-bellied turtles) and this genus is found throughout the southeastern United States. However, from there the breakdown of species becomes a bit challenging. There has been much debate how many species there really area, and how many are subspecies of those species. There are two distinct species for sure – the “River Cooter” (Pseudemys concinna) and the “Pond Cooter” (Pseudemys floridana). From here is gets a bit weird.
The “River Cooters” are just that – friends of rivers. They like those with a bit of a current, sand/gravel bottoms, basking spots, and grasses to eat. They have been found in estuaries, even with barnacles growing on them, so they have some tolerance for saltwater. River cooters can be distinguished from their “Pond Cooter” cousins in having a more aerodynamic shell (presumably for their habit of living in faster flowing rivers) with yellow-orange markings that form concentric rings on each scute (scale) of the carapace. Some of these seem to form a backwards “C”. Their plastron is yellow-orange but will have black markings along the margins of each scute.
This river cooter is basking on a log on the heads waters of the Choctawhatchee River in Alabama.
Photo: Molly O’Connor
The “Suwannee Cooter” is believed to be a subspecies (Pseudemys concinna suwanniensis) found in tannic rivers from the Ochlockonee just west of Tallahassee south to the Tampa Bay region. It has only been found in rivers that flow into the Gulf of Mexico. A couple of records have been found in rivers flowing towards the Atlantic, but it is believed these were relocated by humans.
The “Eastern River Cooter” is found from the Ochlockonee River west to Mobile Bay – possibly as far as Louisiana. There has been a suggestion that the one west of Mobile Bay is the “Mobile Cooter” (Pseudemys concinna mobilensis) but the naming of this group, again, has been a bit crazy.
As mentioned, “Pond Cooters” are fans of slow-moving waters with muddy bottoms. Unlike river cooters, pond cooters will travel over land other than to lay eggs. Many of their “pond” selections dry up and they must find new habitat. Like river cooters, pond cooters feed on vegetation so aquatic plants are must and they also like to bask in the sun on logs with many cooters basking at once.
A pond cooter in a canal within the Gulf Islands National Seashore.
Photo: Molly O’Connor
Physically they differ from river cooters in having a slightly domed shell near the head end. The yellow markings are not concentric, but rather are in straight lines and their plastrons are an immaculate beautiful yellow – with no markings on the margins. They do however have black circles on the bottom margins of their carapace. These are usually round with a small yellow spot in the center – resembling an “o”.
There is believed to be two subspecies of this group. Pseudemys floridana floridiana (the “Florida Cooter”) and Pseudemys floridana peninuslaris (the “Peninsula Cooter”). Told you it was all weird. The Florida cooter is found in the Florida panhandle and the Peninsula Cooter has been found all the way to the Florida Keys – though it does not seem to be common in the Everglades.
Add to the quagmire of species identification – there is hybridization between not only the types of pond and river cooters – but BETWEEN the pond and river cooters. So, if you live in the eastern panhandle where all of these seem to converge – just call them “cooters”!
They have an interesting nesting habit. When the females approach an open sunny sandy spot, she will dig a hole to lay about 20 eggs, but she will also dig two “satellite” nests on either side – and maybe place an egg or two in there. It is quite understood why they do this, but they do. They also may come to the beach up to five times in one year to lay eggs.
A pond cooter digging a nest on someone’s property.
Photo: Deb Mozert
Because of their high numbers and large size, this has been a favorite food item for humans for quite some time. Due to this, and the practice of shooting them off their basking spots, and alterations of river systems lower the habitat quality for the river cooters, their numbers have declined. The Suwannee Cooter in particular has been hard hit and is a species of concern. Due to this it no longer allowed to harvest them (or their eggs) from the wild. Because it is so hard to tell the Suwannee from other species/subspecies of cooters – ALL cooters are now protected by the Florida Fish and Wildlife Conservation Commission.
Another note – they do not eat fish. The young will eat worms and insects, but the adults are strictly herbivores. Many pond owners want to shoot them thinking they are eating the stocked fish by the landowner. They will not eat the fish – you are fine.
I think these are amazingly beautiful animals to see glimmering in the sunny on their basking logs as you explore our local rivers and wetlands. I hope you find them just as cool and appreciate them.
Resources:
Buhlman, K., T. Tuberville, W. Gibbons. 2008. Turtles of the Southeast. University of Georgia Press, Athens GA. 252 pp.
Florida Fish and Wildlife Conservation Commission. Freshwater Turtles https://myfwc.com/wildlifehabitats/wildlife/freshwater-turtles/.
Meylan, P.A. (Ed.). 2006. Biology and Conservation of Florida Turtles. Chelonian Research Monographs No.3, 376 pp.
by Erik Lovestrand | Jun 4, 2020
WOW… is all I can say, when I step outside at night of late and become immersed in the spectacular chorus of calls from breeding frogs and toads near my Wakulla County residence. The sound reverberates to the level where it sometimes feels like it is echoing inside one’s head. Recent heavy rains have awakened local species to the notion that there is no time like the present for pro-creation; given the fact that many of the shallow, depressional wetlands in our region will only contain water for a short window of time.
This may seem like a drawback to the life style of frogs and toads that depend on these wetlands but nature has a way of surprising us with incredible adaptations for survival. For instance, the eastern spadefoot toad (Scaphiopus holbrookii) can actually survive through several years with no water available for raising their young. They do this by remaining buried in the ground, only emerging after heavy rains that collect in depressions. Tadpoles metamorphose into small toads within 28 days so by the time the pool goes dry they are likely long-gone. Female spadefoots will lay over 2,000 eggs at a time so the number of progeny that can emerge from a small depressional wetland is phenomenal. I recall seeing black stains across roadways all over the County about a month after one of our tropical storms. Baby spadefoot toads were dispersing by the millions from hundreds of shallow pools across the region and local roadways were one of the hazards they faced on their journey.
Another advantage to amphibians breeding in ephemeral (temporary) wetlands has to do with the fact that there are no fish to prey on the tadpoles. This is not a requirement for all species, as some have chemical defenses (bad taste) that limit predation, but others could not successfully breed in permanent bodies of water.
Some of the species I have heard calling lately include squirrel treefrogs, green treefrogs, Cope’s gray treefrogs, southern toads, cricket frogs, and a few others I have not identified yet. If you have never made an effort to identify the night calls of frogs and toads, you don’t know what you are missing in your local environment. Some are quite difficult to separate but many of very distinct and once you put the call with a name you won’t ever forget it. Take a moment to listen to one of my favorites, the southern toad; the origin of a beautiful, high-pitched trill that you most likely have never paid much attention to. This website (The Frog Blog) is a great resource to learn more calls. Be sure to listen also to the southern cricket frog call that sounds like two marbles clacked together, and Copes’ gray treefrog, which many might mistake for a bird as they call from high in the tree canopy.
Cricket frogs are one of the smallest vertebrates on the planet.
The cacophony of sounds on a warm summer’s night can seem chaotic and random but if you spend a little time sorting out the musicians, you are sure to develop a deeper appreciation of the symphony, along with a better understanding of the well-orchestrated cycles of nature in your Panhandle backyard.
by Rick O'Connor | Jun 2, 2020
They call it a slider…
Maybe because they slide off a tree trunks into the water? Honestly, I really don’t know – but sliders it is.
They are very common pond turtles all across the eastern and mid-west portions of the United States reaching as far west as New Mexico. Within this range there are two subspecies: The Yellow-bellied Slider (Trachemys scripta scripta) and the Red-Eared Slider (Trachemys scripta elegans). In Florida, only the yellow-bellied is native and it is only found in northern Florida. The red-eared slider is found throughout our state but is non-native and considered by some to be invasive.
The distinct yellow patch on the cheek helps identify the yellow-bellied slider.
Photo: Molly O’Connor
Sliders are mid-sized emydid turtles and found in almost any type of water body. They prefer water bodies with slow currents, lots of sun, and plants – but have been found in retention ponds, rivers, golf courses, you name it. The shell (carapace) is rounder than the other common pond turtle called the cooter. Their shells are usually between 3 – 11 inches long, with females being larger. They have a slight keel running down the middle of their shell and the back margin is slightly “toothed” or serrated. The “belly” shell (or plastron) is usually yellow (source of their common name) as juveniles and forms dark blotches with age. The body is a dark green or black color with fine yellow stripes. The yellow-bellied slider will have a large yellow patch in the cheek area, which is easy to see from a distance. The red-eared has a small red patch behind and above the ear area. The carapace will be green as a juvenile and become darker as an adult. There will be beautiful patterns of yellow in the shell that fade with time. Older sliders will have faded shells all together and the yellow markings on the head and body will fade as well. They call this a melanistic phase.
Sliders are most active during daylight hours and are known to spend some time on land. They can be seen frequently basking on tree stumps and logs and can be aggressive towards each other. Red-eared sliders are known to be aggressive in aquaria.
They are omnivores. Young sliders are carnivorous feeding on small worms and insects. The adults switch to plant diet. Many sliders are shot, or destroyed in other ways, by locals thinking they will eat all the fish in their ponds – they will not.
Males are usually smaller, typically not having carapace lengths greater than 10 inches. Mature males will have extended “fingernails” or claws on their forelimbs. Mating takes place in the water and females have been known to travel up to 1500 feet from the water seeking good nesting habitat. Once found, they may dig a couple of “trial” nests before laying 5-20 eggs in a real one. They lay up to 3 active nests/nesting female/year.
Numerous animals will consume the turtle eggs and hatchlings. Adults have been consumed by alligators, minks, raccoons, otters, and gars.
Within their range, they are considered common but are still protected by Florida law. You may not have more than one slider/person/day from the wild and cannot use for commercial purposes. The red-eared slider is considered non-native and it is illegal to release non-natives into the local environment.
These are beautiful turtles and we hope that if you have not already seen one, you will get to soon.
by Laura Tiu | May 22, 2020
Have you ever been on a walk, passed a beautiful flowering bush, and wondered what it was? Well, wonder no more! You can become an expert naturalist by using an easy smartphone app, iNaturalist. With one easy download, you can connect with others to identify species and document their occurrence.
iNaturalist is a community of naturalists, citizen scientists and biologists working together to share observations of biodiversity and map the occurrence. Parents need to know that iNaturalist is an online community that allows users age 13 and older to share pictures and locations of the living things they see around them. While considered very safe, like any online network, teens should be cautious with sharing.
Getting started is easy. All you need to do is create an account at iNaturalist.org and download their free iNaturalist app to your smartphone (Android or iOS). You can then start making your own nature observations, upload them to iNaturalist where you can share your discoveries with others, and also let other iNaturalist users help identify what you have seen.
iNaturalist is a great way to connect with nature and generate scientifically valuable biodiversity data. You can use it for your own personal fulfillment, or as part of a group. You can even use the project feature which allows you to have a central page that displays all the observations made within a location, or all observations made by a group. Why not organize your neighbors, club, or friends and challenge them to post their observations?
Mystery blob in the garden. Can you figure out what it is? Photo: Laura Tiu
I recently used iNaturalist to identify a bright yellow blob that sprung up in my garden overnight. I won’t spoil the surprise by telling you what it is. Why don’t you head on over to iNaturalist.org and see if you can figure it out? It will be your first step to becoming an expert naturalist.
by Chris Verlinde | May 1, 2020
Black Skimmers foraging for fish. Photo Credit: Jan Trzepacz, Pelican Lane Arts.
Black Skimmers and Least Terns, state listed species of seabirds, have returned along the coastal areas of the northern Gulf of Mexico! These colorful, dynamic birds are fun to watch, which can be done without disturbing the them.
Shorebirds foraging. Photo Credit: Jan Trzepacz, Pelican Lane Arts.
Black Skimmer with a fish. Photo Credit: Jan Trzepacz, Pelican Lane Arts.
What is the difference between a seabird and shorebird?
Among other behaviors, their foraging habits are the easiest way to distinguish between the two. The seabirds depend on the open water to forage on fish and small invertebrates. The shorebirds are the camouflaged birds that can found along the shore, using their specialized beaks to poke in the sandy areas to forage for invertebrates.
Both seabirds and shorebirds nest on our local beaches, spoil islands, and artificial habitats such as gravel rooftops. Many of these birds are listed as endangered or threatened species by state and federal agencies.
Juvenile Black Skimmer learning to forage. Photo Credit: Jan Trzepacz, Pelican Lane Arts.
Adult black skimmers are easily identified by their long, black and orange bills, black upper body and white underside. They are most active in the early morning and evening while feeding. You can watch them swoop and skim along the water at many locations along the Gulf Coast. Watch for their tell-tale skimming as they skim the surface of the water with their beaks open, foraging for small fish and invertebrates. The lower mandible (beak) is longer than the upper mandible, this adaptation allows these birds to be efficient at catching their prey.
Least Tern “dive bombing” a Black Skimmer that is too close to the Least Tern nest. Photo Credit: Jan Trzepacz, Pelican Lane Arts.
Adult breeding least terns are much smaller birds with a white underside and a grey-upper body. Their bill is yellow, they have a white forehead and a black stripe across their eyes. Just above the tail feathers, there are two dark primary feathers that appear to look like a black tip at the back end of the bird. Terns feed by diving down to the water to grab their prey. They also use this “dive-bombing” technique to ward off predators, pets and humans from their nests, eggs and chicks.
Least Tern with chicks. Photo Credit: Jan Trzepacz, Pelican Lane Arts.
Both Black Skimmers and Least Terns nest in colonies, which means they nest with many other birds. Black skimmers and Least Terns nest in sandy areas along the beach. They create a “scrape” in the sand. The birds lay their eggs in the shallow depression, the eggs blend into the beach sand and are very hard to see by humans and predators. In order to avoid disturbing the birds when they are sitting on their nests, known nesting areas are temporarily roped off by Audubon and/or Florida Fish and Wildlife Conservation Commission (FWC) representatives. This is done to protect the birds while they are nesting, caring for the babies and as the babies begin to learn to fly and forage for themselves.
Threats to these beautiful acrobats include loss of habitat, which means less space for the birds to rest, nest and forage. Disturbances from human caused activities such as:
- walking through nesting grounds
- allowing pets to run off-leash in nesting areas
- feral cats and other predators
- litter
- driving on the beach
- fireworks and other loud noises
Audubon and FWC rope-off nesting areas to protect the birds, their eggs and chicks. These nesting areas have signage asking visitors to stay out of nesting zones, so the chicks have a better chance of surviving. When a bird is disturbed off their nest, there is increased vulnerability to predators, heat and the parents may not return to the nest.
Black Skimmer feeding a chick. Photo Credit: Jan Trzepacz, Pelican Lane Arts.
To observe these birds, stay a safe distance away, zoom in with a telescope, phone, camera or binoculars, you may see a fluffy little chick! Let’s all work to give the birds some space.
Special thanks to Jan Trzepacz of Pelican Lane Arts for the use of these beautiful photos.
To learn about the Audubon Shorebird program on Navarre Beach, FL check out the Relax on Navarre Beach Facebook webinar presentation by Caroline Stahala, Audubon Western Florida Panhandle Shorebird Program Coordinator:
In some areas these birds nest close to the road. These areas have temporarily reduced speed limits, please drive the speed limit to avoid hitting a chick. If you are interested in receiving a “chick magnet” for your car, 
to show you support bird conservation, please send an email to: chrismv@ufl.edu, Please put “chick magnet” in the subject line. Please allow 2 weeks to receive your magnet in the mail. Limited quantities available.
by Carrie Stevenson | Apr 30, 2020
White-topped pitcher plants in bloom at Tarkiln State Preserve. Photo credit: Carrie Stevenson, UF IFAS Extension
If you live in northwest Florida or southeast Alabama and have never laid eyes on our wild native carnivorous plants, it is about time! April and early May are the best time to see them in bloom. We have six species of pitcher plants (Sarracenia), the most common being the white-topped (Sarracenia leucophylla). However, they come in multiple colors, from yellow and red to a deep purple, and in different sizes.
Pitcher plants and their pinwheel-shaped flowers at Splinter Hill Bog. Photo credit: Carrie Stevenson, UF IFAS Extension
One thing they have in common, though—they eat meat. Carnivorous plants all over the world have evolved in places that left them few other options for survival. These plants are typically found in extremely wet, acidic, mucky soils with very low nutrient levels. Normally, plants uptake nutrients like nitrogen and phosphorus from the soil around them. Not being available in these particular environments, carnivorous plants (or more specifically, insectivorous) developed a way to extract nutrients from insects.
Small parrot pitcher plants lie on the ground instead of standing upright at Blackwater State Forest. Photo credit: Carrie Stevenson, UF IFAS Extension
So how does it work? Pitcher plants have a modified leaf, which instead of lying out flat like most plants, is rolled up into a tube, or “pitcher” shape. The inside of the pitcher has a sweet sap, and the walls of the tube are lined with tiny, downward-pointing hairs. Separate from the leaf, the plant has an elaborate flower structure, which attracts insects for pollination. While nearby, these insects are also attracted to the colorful leaf and the sweet sap in its pitcher. The insect will land on the lip of the leaf, then crawl down.
Those sticky, downward facing hairs are a trap, preventing insects from leaving the pitcher. Enzymes—a cocktail of proteins naturally found in many other plants but used creatively here—in the sap break down the bug bodies and convert them to nutrients for the plant. In fact, if you slice a cross-section into a pitcher wall or break open a dried one, you will see countless dried exoskeletons at the bottom of the tube. Several other enterprising species have taken advantage of the pitcher plant’s creative structure. More than once, I have seen tiny spiders spin webs across the mouth of the tube, or small lizards and frogs at the bottom, waiting patiently for prey.
Some of the best places to see pitcher plants in the area—they also bloom in October—are Tarkiln Bayou State Preserve, Weeks Bay National Estuarine Research Reserve, Splinter Hill Bog Preserve, and Blackwater State Forest.
