Helping Turtles Cross Our Highways… Safely

Helping Turtles Cross Our Highways… Safely

When doing programs about snakes I find plenty of people who hate them… but I have never found anyone who hated turtles. I mean what is there to hate?  They are slower, none of them are venomous, they have shoulders… people just like them.  And to that point, when people see them crossing the road almost everyone wants to help.  But that can be dangerous – for you and for the turtle.  Here are couple of safety tips you should know before helping a turtle cross the road.

This small turtle can be held safely by grabbing it near the bridge area on each side. Photo: Molly O'Connor

This small turtle can be held safely by grabbing it near the bridge area on each side.
Photo: Molly O’Connor

Your Safety

 

You would be surprised by the number of people, particularly children, that are hit by cars while trying to help turtles cross the road. One story I heard involved nine-year-old girl who was riding in the backseat with her grandmother.  They both saw the turtle trying to cross a busy highway and wanted to help.  The grandmother pulled over to the side but before she could even get the car in park the little girl opened the door and ran into the highway only to be struck by an oncoming car.  We all like turtles, and do not want to see them hit by cars, but as sad as it is to see a turtle hit – it is horrific to see the same happen to a child.  No matter what your age – please watch for traffic before attempting to help a turtle.

 

Turtles Bite

Yep… unlike their reptilian cousins the snakes, lizards, and alligator, turtles do not have teeth… but they do have a beak. The beak is made of a hard bony like material that is blade sharp in carnivorous turtles, and serrated like a saw in herbivorous ones – both can do serious damage.  Some species of turtles feed on a variety of shellfish, and if they can crush shell they can certainly do a number on your hand – so you have to be careful.  First thing you should do is determine whether the turtle needs to be handled.  If traffic is not too bad, or the road not too wide, you may be able to just manage traffic so the turtle can cross on its own.  If you feel that you must handle the turtle, there are safe ways to hold them.  Smaller turtles can be held safely from the sides by grabbing the bridge area – the portion of the shell connecting the top (carapace) to the bottom (plastron).  Many turtles will begin to kick their feet when you do this and their claws may scratch – be prepared for this.  There are two groups of turtles that have extended necks and your hands, grasped near the bridge of their shell, are still within range of their mouths – these are the snapping and softshell turtles.  Both are notorious for their bites.  So how do you handle those?  Below is a short video put together by the Toronto Zoo that gives you some ideas on how to handle those situations.

https://m.youtube.com/watch?v=Lgd_B6iKPxU

 

Turtle Direction

Turtles cross highways for a variety of reasons – females looking for high dry ground to nest, individuals looking for more productive ponds, males looking for females – whatever the reason they are heading that way and will continue to do so. Placing them on the side of the highway where they came from will only initiate another attempt to cross.  Move them to the side of the road they were heading.

 

The majority of turtle crossings occur during spring and summer. Untold numbers are killed each year on our highways – many gravid females carrying the next generation of the species.  Though we encourage turtle conservation in Florida you do have to be smart about it.  If you have any questions about Panhandle turtles in Florida contact your local extension office.

Searching for Diamondback Terrapins in Alabama

Searching for Diamondback Terrapins in Alabama

Many folks are putting together a “bucket list” of things they would like to do or see before they can no longer do them. For many interested in natural resources there are certain national parks and scenic places they would like to visit.  Other natural resource fans have a list of wildlife species they would like to see.

Terrapins inhabit creeks, such as this one, within the expanse of the salt marsh. Here you can see their heads pop up above the water and you may get lucky enough to find one basking. Photo: Rick O'Connor

Terrapins inhabit creeks, such as this one, within the expanse of the salt marsh. Here you can see their heads pop up above the water and you may get lucky enough to find one basking.
Photo: Rick O’Connor

Recently I hooked with famed Alabama outdoorsman Jimbo Meador to search for locations to find Alabama turtles.  Jimbo has been fishing, hunting, and enjoying the Mobile Bay area all of his life and he now using that knowledge as a guide in a nature-based tourism project.  He recently received a call from a group of gentleman from another part of the country who had on their bucket list viewing 1000 reptilian species in their native habitat.  In Alabama they were interested in the Black-knobbed Map Turtle, the Alabama Red Belly, and the Diamondback Terrapin.  Jimbo has just begun the first module of the Florida Master Naturalist Program and reached out to us for advice on where to find these guys.  Luckily, after working with scientists from the University of Alabama at Birmingham, I knew where to find diamondback terrapins – and have a pretty good idea on the others.

 

These “diamonds of the marsh” – as they are sometimes called – are very elusive creatures. They inhabit muddy bottom creeks within extensive salt marsh habitat all along the Gulf and East coast of the United States.  I spent two years searching the Florida panhandle before I found my first live animal.  It was one of the odd things though – once you have seen one, you now know what you are looking for and begin to find more.

 

I took Jimbo to a location near Dauphin Island where about 150 terrapins are believed to exist. Terrapins spend most of their day within creeks that meander through acres of salt marsh.  The odd thing is there may be hundreds of creeks within these marshes and the terrapins – for some reason – will select their favorites and hang there.  You can spend all day paddling through perfect looking creeks not seeing a head at all… then all of sudden… you enter one creek… not really any different than the others… and there they are.

Veteran waterman and outdoor guide, Jimbo Meador, explores the marshes near Dauphin Island for the elusive diamondback terrapin. Photo: Rick O'Connor

Veteran waterman and outdoor guide, Jimbo Meador, explores the marshes near Dauphin Island for the elusive diamondback terrapin.
Photo: Rick O’Connor

Within these creeks they feed on a variety of shellfish but particularly like the marsh periwinkles. These small snails are the ones that climb the cordgrass and needlerush plants during high tide to avoid their nemesis the blue crab and the diamondback terrapin.  Terrapins do crawl out of the water to bask in the sun and have been known to bury in the loose fine mud.  Females must find high dry ground to lay her eggs.  She may swim as far as 5 miles from her home creek to find a suitable beach.  They do like sandy beaches that are open and free of most plants.  They emerge onto these beaches during May and June to lay about 7-10 eggs.  Most females will lay more than one clutch each season emerging once every 16 days or so.  Different from sea turtles – terrapins nest during the daylight hours.  Actually the sunnier – the better.  Raccoons are a big problem… find and consuming the eggs; on some beaches researchers have reported 90% or more of the nest have been raided by the furry guys.  Crows, snakes, and possibly armadillos will take nests as well.  If the developing young survive the 60+ days of incubation, they will emerge and head for the grass areas of the marsh… not the water.  Here they will spend the first year of their life living more like a land turtle before they make their way to the brackish waters of the salt marsh.

Open sandy beaches, such as the one in this photograph, are the spots females terrapins seek when they are ready to dig a nest. Photo: Rick O'Connor

Open sandy beaches, such as the one in this photograph, are the spots females terrapins seek when they are ready to dig a nest.
Photo: Rick O’Connor

These are fascinating creatures and should be on everyone’s natural resource bucket list. The hard effort of finding them really makes doing so very rewarding.  On this day Jimbo saw only one head – I did not see any.  I have found in my study site that I see more heads in the afternoon (we were out in the morning).  I do not know if this is the case at all terrapin nesting sites, but something to consider when looking.  Though we did not find many that day he now knows what to look for when searching for them.  Next we will have to hunt the Alabama Red Belly Turtle.  That is another story for another day.

 

We will continue this series with other interesting wildlife creatures to “hunt” in the Florida panhandle.

Celebrate Gopher Tortoise Day – April 10

Celebrate Gopher Tortoise Day – April 10

This gopher tortoise was found in the dune fields on a barrier island - an area where they were once found. Photo: DJ Zemenick

This gopher tortoise was found in the dune fields on a barrier island – an area where they were once found.
Photo: DJ Zemenick

The state of Florida has designated Sunday April 10 as “Gopher Tortoise Day”.  The objective is to bring awareness to this declining species and, hopefully, an interest in protecting it.

 

During his travels across the southeast in the late 18th century, William Bartram mentioned this creature several times.  As he walked through miles of open longleaf pine he would climb sand hills where he often encountered the tortoise.  These turtles do like high dry sandy habitats.  Here they dig their famous burrows into the earth.

 

These burrows can extend almost 10 feet vertically below the surface but, being excavated at an angle, can extend 20 feet in length. There is only one entrance and the tortoise works hard to maintain it.  Field biologists have been able to identify over 370 species of upland creatures that utilize these burrows as refuge either for short or long periods of time. These include the declining diamondback rattlesnakes, gopher frogs, and the endangered indigo snakes, but most are insects and small mammals.  Because of the importance of the burrows to these species, gopher tortoises are listed as keystone species – meaning their decline will trigger the decline of the others and can upset the balance of the ecosystem. Gopher burrows can be distinguished from mammal burrows in that they are domed across the top but flat along the bottom, as opposed to being oval.  The width of the burrow is close to the length of the tortoise. When danger is encountered the tortoise will turn sideways – effectively blocking the entire entrance.  Though there are cases of multiple tortoises in one, the general rule is one tortoise per burrow.

 

Tortoises are herbivores, feeding on a variety of young herbaceous shoots, and fruit when they can get find them. Fire is important to the longleaf system and it is important to the gophers as well.  Fires encourage new young shoots to sprout.  If an area does not receive sufficient fire, and the ground vegetation allowed grow larger with tougher leaves, the tortoise will abandon their burrow and seek more suitable habitat – which, especially in Florida – is becoming harder and harder to find.  They typically breed in the fall and will lay their 5-10 eggs in the loose sand near the entrance of the burrow in spring.  In August the hatchlings emerge and may hide beneath leaf litter, but will quickly begin their own burrows.

 

This tortoise is only found in the southeast of the United States and it is in decline across the region. They are currently listed as threatened in Florida but are federally protected in Louisiana, Mississippi, and western Alabama.  They are found across our state as far south as the Everglades.  There are several reasons why their numbers have declined.  Human consumption was common in the early parts of the 20th century, and still is in some locations – though illegal.  Some would, at times, pour gasoline down the burrow to capture rattlesnakes – this of course did not fare well for the tortoise.  A big problem is the loss of suitable habitat.  Much of upland systems require periodic fires to maintain the reproductive cycle of community members.  The suppression of fire has caused the decline of many species in our state including gopher tortoises.  These under maintained forest have forced tortoises to roadsides, power line fields, airports, and pastures.  In each case they have encountered humans with cars, lawn mowers, and heavy equipment.  Keep in mind also that our growing population is forcing us to clear much of these upland habitats for developments where clearing has caused the burial (entombment) of many burrows.

 

This is a unique turtle to our region and honestly, is a pleasure to see. We hope you will take the time to learn more about them by visiting FWC’s Gopher Tortoise Day website, enjoy watching them if they live near you, and help us conserve this species for future generations.

Nature Tourism in the Panhandle – Intracoastal Waterway – Navarre

Nature Tourism in the Panhandle – Intracoastal Waterway – Navarre

All Photos:  Molly O’Connor

 

In this monthly series of highlighting outdoor adventures in the Florida Panhandle, we are visiting locations along the Intracoastal Waterway; from the Alabama State line to the Aucilla River.  In January we wrote about Perdido Key, last month we visited Pensacola Beach, this month we move east along Santa Rosa Island to the beach community of Navarre.

 

Navarre Beach is a relatively quiet community on Santa Rosa Island between Pensacola and Ft. Walton Beach.  There are some good places to eat, a new RV campground, and plenty of water/outdoor activities.  Navarre Beach became famous in the 1970’s as the location for the film Jaws II.  I personally witnessed much of the shooting of the film and it was amazing to see how it all actually all works.  The hotel that was used in the film is no longer there but the stories are!

 

On the Island

There are some great kayak and paddle locations on Navarre Beach. Paddling over the grassbeds and to the east of the Navarre Marine Park you can see a lot of coastal wildlife and great sunsets.  You can of course paddle the Gulf as well and maybe take a shot at kayak fishing.  You will find local kayak rentals and guides by visiting Naturally EscaRosa website.

Paddling in a kayak or on a paddleboard is a great way to view wildlife and natural scenes while visiting Navarre Beach.

Paddling in a kayak or on a paddleboard is a great way to view wildlife and natural scenes while visiting Navarre Beach.

The Navarre Fishing Pier extends over 1500 feet. Not only a great place to fish but a great place to view marine life.

The Navarre Fishing Pier extends over 1500 feet. Not only a great place to fish but a great place to view marine life.

 

 

 

 

 

 

 

 

 

 

 

Speaking of fishing, there is the Navarre Beach Fishing Pier which extends 1500 feet out over the Gulf.  The pier provides of variety of price options for fishermen of all ages and for $1 you can just walk and enjoy the view.  Sharks and sea turtles are often seen from here – and don’t forget the sunsets.

 

There are two educational interpretive centers on Navarre Beach. The Navarre Beach Marine Science Station is part of the Santa Rosa County School District.  They provide programs for elementary, secondary, and dual-enrolled high school-college students.  The Station also provides numerous youth camps during the school year and during the summer, as well as providing activities at local community events.  To see if they have something going for your young one while you are here visit their website.

The Navarre Beach Marine Science Station provides education for young and old.

The Navarre Beach Marine Science Station provides education for young and old.

Navarre beach marine science station sign

 

 

 

 

 

 

 

 

 

 

 

 

 

The Navarre Beach Sea Turtle Conservation Center is an educational center that focuses on imperiled marine wildlife but the sea turtle is the star of the show.  The center will eventually house an injured sea turtle that can no longer be released but until one arrives, there is plenty to see and learn.  Learn more about the center at their website.

The Navarre Beach Sea Turtle Conservation Center.

The Navarre Beach Sea Turtle Conservation Center.

Santa Rosa County also provides a couple of nearshore snorkel reefs for the public. You can find them on both the Gulf and Sound sides.

Santa Rosa County also provides a couple of nearshore snorkel reefs for the public. You can find them on both the Gulf and Sound sides.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

These day markers are marking two nearshore snorkel reefs on the Sound side of Navarre Beach. They can be accessed from the Navarre Marine Park.

These day markers are marking two nearshore snorkel reefs on the Sound side of Navarre Beach. They can be accessed from the Navarre Marine Park.

A barge travels beneath the Navarre Beach Bridge as it heads east along the ICW.

A barge travels beneath the Navarre Beach Bridge as it heads east along the ICW.

 

 

 

 

 

 

 

 

 

 

 

 

Off the island

Actually, you have to leave Santa Rosa at this point. The island between Navarre Beach and Ft. Walton Beach is the property of the United States Air Force.

As you leave Navarre Beach to travel the ICW from the north side, you see the Panhandle Butterfly House on your left at the Highway 98 traffic light.  This is a great stop.  Viewing live butterflies feeding on native plants in all stages of their lives is a cool sight.  There are plenty of volunteers to educate you about native butterflies and there is a pond out back with a lot of turtles and birds to view.  It’s a neat and relaxing place.

The Panhandle Butterfly House is located just to the west of the traffic light on Highway 98 as you leave Navarre Beach.

The Panhandle Butterfly House is located just to the west of the traffic light on Highway 98 as you leave Navarre Beach.

Butterfly house NER

 

 

 

 

 

 

 

 

 

 

 

 

 

Numerous turtles can be found swimming and basking in the pond behind the butterfly house.

Numerous turtles can be found swimming and basking in the pond behind the butterfly house.

A snowy egret hunts for a meal in the turtle pond behind the butterfly house.

A snowy egret hunts for a meal in the turtle pond behind the butterfly house.

 

 

 

 

 

 

 

 

 

 

 

Nature Notes:   Sea Turtles

Who doesn’t love sea turtles! These silent, charismatic creatures have been navigating Gulf waters, and nesting on our beaches for centuries.  Certainly the largest species of turtle humans will encounter, weighing in between 200-300 pounds – with some reaching 1000 pounds, they are an awesome thing to see.  There are five species found in the northern Gulf of Mexico and there are records of four them nesting here.  Those species are the Loggerhead, Green, Kemp’s Ridley, Hawksbill, and the giant of them all the Leatherback.

 

Sea turtles begin their lives within the egg buried on a beach. The sex of the embryo is determined by the temperature of the sand they are incubating in – cold ones become males and 29°C appears to be the cutoff.  After 60-70 days incubating the young hatchlings emerge at night and orient towards shortwave light (moon or stars off the water).  However, in recent years much of the light we provide in our homes as directed them in the wrong direction (disorientation).  There are “turtle friendly lights” that use longwave colors and significantly reduce the disorientation problem.  All coastal counties along the panhandle require these lights for island structures.  Many of the hatchlings are lost as they wonder to the Gulf.  Ghost crabs, fox, coyotes, and now feral cats capture and consume many.

 

Those lucky enough to reach the water now have to deal with fish and bird predators. These young head offshore seeking the Sargassum mats where they will spend their growing years feeding and hiding.

As immature adults most species will return to the coastal areas to feed on seagrasses or invertebrates. As they become sexually mature they, once again, head to sea.  Though they travel far and wide they are known to return to their place of birth for breeding and egg laying.  Breeding takes place just offshore and females may come ashore more than once to deposit their clutch of 100+ eggs.

 

In addition to light pollution, marine debris, boat strikes, commercial fishing nets, and even holes and chairs left on the beach overnight have caused their numbers to decline. You should be aware that most coastal counties have a “leave no trace” ordinance asking you to remove your chairs, tents, and other items at the end of the day – and please fill in any holes you may have dug.  All species of marine turtles are currently listed and protected by the U.S. Fish and Wildlife Service.  In Florida, the USFWS has yield management of these species to the Florida Fish and Wildlife Conservation Commission.  They are truly a magnificent creature and we hope all get to see one while exploring our beaches.

 

Now it is time to move to Okaloosa County – the April issue will look at Ft. Walton and Destin. Let’s head there and see what cool outdoor adventures await us.

 

You can find information on ecotourism providers in Escambia and Santa Rosa counties by visiting Naturally EsacRosa.

From Fear to Fascination: White Sharks in the Panhandle

From Fear to Fascination: White Sharks in the Panhandle

White Shark (Carcharhinus carcharias). Credit: Florida Sea Grant Stock Photo

White Shark (Carcharhinus carcharias). Credit: Florida Sea Grant Stock Photo

From Fear to Fascination: White Sharks in the Florida Panhandle

UF/IFAS Extension – Florida Sea Grant

 By Rick O’Connor (Escambia County) and L. Scott Jackson (Bay County)

Recently, I was walking on our local Gulf fishing pier checking fishing line recycle bins. You can’t walk on a Gulf pier without looking over to possibly catch a glimpse of a sea turtle or a shark, and I was not disappointed. It was hard to tell which species of shark but it was about 6 feet in length. It swam south along the edge of the pier and then east to make a large arching circle through the emerald water, past bathers at the surf break, and back to the pier only to swim the pattern again. Onlookers from out-of-town were giggling with delight to see the animal while a couple of local fishermen tried tossing bait at it, but most ignored it and went on with their fishing.

Bob Shipp’s book, Fishes of the Gulf of Mexico, lists 29 species of shark found locally. Most are members of the requiem shark family, such as blacktips and bulls, and hammerheads. Though these sharks are certainly capable of attacking humans, their presence usually does not interrupt water activities. Divers who encounter sharks may be startled at first but rarely do they end their dive or have problems with them. Even in 2005, remembered as the “summer of the shark attack”, few people stopped diving or surfing. Individuals have become educated regarding shark behavior and are not as startled when they see one. However, in 2015 there were several encounters with White Sharks.

Sightings in the Gulf of Mexico are rare but usually occur in the cooler months. Is the increased interaction with White Sharks unusual or something to worry about?

 

To answer this question I turned to George Burgess, a shark expert who manages the International Shark Attack File housed at the UF Florida Museum of Natural History.

Is this unusual?

Burgess assured me that White Sharks do occur in the Gulf of Mexico usually during cooler months and are transients, as opposed to residents. Their movement in and out of the Gulf is temperature driven. As late spring Gulf waters continue to warm into early summer, sighting a White Shark is less likely to occur. According to Burgess, White Sharks use deep water when traveling but prefer shallow water when hunting fish, turtles, and marine mammals. So, inshore encounters especially in cooler months would not be unusual.

Why is there a sudden increase in the numbers of encounters?

One part of the answer lies with the increased number of White Sharks. Conservation of sharks has been effective. Additionally, with the passing of the Marine Mammal Protection Act, there are more marine mammals, thus an increase in their predators, White Sharks. The other part is the number of humans visiting the northern Gulf has increased. There are more more visitors to marine waters, especially since the Deepwater Horizon oil spill. Everyone has a camera. Beachgoers, Swimmers, Divers, and Anglers all have improved technology to record their adventures.

Is Northwest Florida a “hot spot” for White Sharks? Burgess indicated that the northern Gulf of Mexico is more productive than the peninsular Florida due to the number of nutrient rich rivers in the region. Seeing more White Sharks here would not be any more unusual than finding more snapper, lionfish, or other species of shark. As far as worrying, there have been no records of White Shark attacks in the northern Gulf of Mexico since they began keeping records in 1872.

Finally, what does one do if they encounter a White Shark?

The quick answer is nothing different than with any other shark. It is true that most White Shark attacks occur at the surface but there are no records of any attacks in Florida. Burgess indicated that the Bull Shark is probably a bigger threat than the White Shark. For more information about Bull Sharks and general tips to avoid a negative shark encounter read this article https://nwdistrict.ifas.ufl.edu/nat/sharktips

 

In a recent video, recorded near Apalachicola, a diver was on an anchor line on a decompression stop when he saw a White Shark approaching from depth. What should a diver do in this situation? Should they swim for the surface and risk decompression sickness, remain still, or return to the bottom?

The answer has a lot to do with what the shark is actually doing. Is the shark interested in the diver or acting aggressively? Burgess suggests, you assess the situation and the shark’s behavior. All options are on the table and have to be weighed against the consequences given in this scenario. As a last resort, a diver may need to make a quick but graceful exit out of the water, past the shark, and depend on their diving partners to render aid as needed. The lesson is for divers to be prepared for a variety of potential issues on every dive.

For more information on sharks and shark attacks in Florida visit the International Shark Attack File at http://www.flmnh.ufl.edu/fish/Sharks/ISAF/ISAF.htm

Note:  White Sharks are a protected and prohibited species. It’s illegal to beach or land them. See guidance on shark fishing regulations, gear requirements, Including catch and release methods from the Florida Fish and Wildlife Conservation Commission at http://myfwc.com/fishing/saltwater/recreational/sharks

Those Terrific Terrapins

Those Terrific Terrapins

They are marvelous creatures and there are very few panhandle residents who know what they are. My wife and I were introduced to Diamondback Terrapins by George Heinrich in 2005. George was the president of a nonprofit, Florida Turtle Conservation Trust, and a member of the Diamondback Terrapin Working Group, a national group of terrapin researchers and educators. He, and these organizations, were very interested in the status of terrapins in the Florida panhandle… so Molly and I took that job on.

 

Diamondback terrapins (Malaclemmys terrapin) are the only true brackish water resident turtle in the United States. They range from Cape Cod MA down the entire eastern seaboard, across the Gulf of Mexico to Brownsville TX. Within that range there are 7 described subspecies, 5 of those found in Florida, 2 found in the Florida panhandle. These estuarine turtles prefer salt marsh and mangrove habitat. They are very reclusive and difficult to find – hence why most locals have never seen nor heard of them. When I talk about them to the public I get responses such as… “do you mean tarpon?” “I find those in my yard all of the time” (probably a different species), “aren’t those from up north?” and “never heard of them”… they are not fish so they could be found in your yard if you live along the fringes of a salt marsh, they are up north – but they are here also.

Diamondback terrapin found in Wakulla County.  Photo: Molly O'Connor

Diamondback terrapin found in Wakulla County.
Photo: Molly O’Connor

 

In 2005 Molly and I were asked to survey the panhandle and determine if terrapin populations still exist. We decided to take that job on and then expand to determine their population size and whether those populations are increasing or decreasing. The coastal panhandle extends from Escambia County (on the Alabama state line) to Jefferson County (Aucilla River), but due to existing funding we could only survey to the Apalachicola River. This would include six counties: Escambia, Santa Rosa, Okaloosa, Walton, Bay, and Gulf. We verified at least one record of a terrapin in each county. We discovered the larger the expanse of salt marsh – the higher probability of terrapins; thus those counties with relatively little salt marsh (such as Okaloosa) would have fewer/smaller terrapin populations.

 

But marsh alone is not enough. Terrapins need high ground in which to lay their eggs. High ground within a marsh is not a common thing. Research shows that terrapins will travel up to 5 miles in search of suitable nesting; which means a terrapin could be found in your neighborhood even if no marsh is visible. Unlike sea turtles they are “home-bodies” rarely leaving the marsh where they were born. They spend time forging for shellfish (particularly the snail called marsh periwinkle – Littorina irorata) and basking on and in the mud. They can be seen at the surface with their heads peering at you – they seem to be very curious.

 

Marsh periwinkles will climb cordgrass to avoid predation by blue crabs and terrapins.  Photo: Molly O'Connor

Marsh periwinkles will climb cordgrass to avoid predation by blue crabs and terrapins.
Photo: Molly O’Connor

 

Once we confirmed that terrapins were still in the panhandle we then began work on how many. To do this we needed to find their nesting beaches. Terrapin nesting season is about the same as that of sea turtles (May 1 – Aug 1); some nesting may occur after that but few. Unlike sea turtles they nest during daylight hours and prefer sunny days over cloudy/raining ones. They like to nest at high tide – thus finding a suitable location that is out of the way of potential flooding by the rising bay – however this does not account for severe storms. They typically lay about 10 eggs in their nest, cover and disguise, and then leave it to its fate. Unfortunately in many nesting areas, its fate is to be uncovered and consumed by predators – particularly raccoons. Molly and I would kayak salt marshes searching for suitable nesting beach. Once found, we would walk the beach looking for sign of nesting. If nesting was found this would be recorded and we would then begin 16-day monitoring trips. It is assumed that each sexually mature female within the population will nest once every 16 days; and they will nest more than once each year. Signs of nesting include tracks (which are counted), and egg shells from a nest that was raided by a raccoon (which were logged and removed). Occasionally we would come across a nesting female. We would allow her to complete the nesting activity and then capture her for measurements and photographs. We would mark her with a notch on the margin of the carapace (top shell) and release her (we did not have the funding for PIT tags). We would also set modified crab traps to capture them. Terrapins have a habitat of entering crab traps (probably more for the bait than the crabs) and becoming entrapped. Unless found within 15-30 minutes, they will drown. Our modified crab traps were tall enough that terrapins could reach the surface (even at the highest tide) and get a breath of air. We would set traps for 5 day periods and (if we caught any at all) would only capture during the first day or two. Terrapins are smart and we found that after day 2 most would approach our traps, observe our handy work, and swim away. With the data from these two activities we could get a rough idea of how many terrapins were in this population and how they changed over time.

 

The marshy habitat terrapins love.   Photo: Molly O'Connor

The marshy habitat terrapins love.
Photo: Molly O’Connor

 

We focused our population surveys to our home counties of Santa Rosa and Escambia counties. We were able to identify 1 nesting beach in Escambia and 2 in Santa Rosa (we have since found a 3rd). We never caught a terrapin in Escambia but had good success at one of the two beaches in Santa Rosa. That population had approximately 50 individuals living within it. From 2007 to 2012 the population remained relatively stable. In 2012 I changed jobs and have not had a chance to re-survey. I plan to do this in 2016.

 

This year we trained 24 volunteers to assist us in locating and monitoring nesting beaches. They did find a new nesting beach in Santa Rosa and will begin monitoring nesting activity and trapping next year.

 

These are fascinating creatures and one of the most beautiful turtles you will ever see. Some have asked me about state protection for them. They are listed as a freshwater turtle with FWC thus you cannot possess more than two, cannot have any eggs, and cannot sell them.

 

If you have questions about diamondback terrapins, are interested in participating in terrapin surveys in Escambia and Santa Rosa counties, or would like to begin your own surveys in your county. Contact me (Rick O’Connor) at roc1@ufl.edu or (850) 475-5230.