Posts Tagged ‘diamondback terrapins’

Red Fox: Wildlife on the Edge

Monday, October 20th, 2008

As humans expand development and invade the few remaining slices of natural habitat in coastal New England, wild creatures are increasingly forced to survive on the edge of civilization, spilling over into once wild, now “domesticated” lands.  For smaller, secretive and non-aggressive animals such as turtles and rabbits and squirrels and chipmunks, we tolerate their presence so long as they don’t get in the way of our cars or lawn movers, or dare to scavenge in our gardens and garbage.  For the larger, more predatory critters, their very existence in our midst poses a threat to our manicured and domesticated lives.  “Coyotes and foxes and snakes, oh my.  Hide your pets, guard your children; the wilderness is coming to a backyard near you!”

Red Fox (Vulpes vulpes) on West Island Sun Deck

We must admit that Turtle Journal loves foxes like prodigal children.  Back fifteen years or so, a wily female fox “learned” how to hunt diamondback terrapins in Wellfleet Bay and developed quite a taste for them.  She killed over a hundred of these threatened turtles and fed them to her kits.  We worried that she might pass along this skill to her offspring, but luckily, the skill passed with her.  So, now we can love foxes without reservation.

As the Turtle Journal team drove to West Island on Saturday, hugging the shoreline along Balsam Street heading for the south point, we spotted a beautiful red fox lazing on the side of the road, relaxing like a puppy dog and savoring the long rays of late afternoon sunshine.  We slowed to a crawl to get cameras ready, but impatient weekenders in the car behind us seemed oblivious to the fox, swerved around us and tore down the street to get to the beach for sightseeing.  Go figure. 

Greater New Bedford Area with West Island on the Lower Right

West Island lies on the western coast of Buzzards Bay in Fairhaven and within the Great New Bedford area.  The middle of the island is largely pristine woodlands with dense cottage development along the western shore.  The north, south and east coasts of West Island are covered with sometimes sandy, often rocky beaches with a scattering of salt marshes throughout.  Terrapins were documented on West Island a couple of decades ago, but no sign of their presence has been observed for the last five years of intense search.

The fox bolted across the street toward cottages along the beach.  Sue jumped out with the camera, while Don ran interference with an upset resident.  “You’re not going to do anything to it, are you?  That’s MY fox; I’m taking care of it.  You’re not going to take it, are you?  It lives in my yard and I’m taking care of it.”  While Sue shot footage, Don spoke to the woman about the dangers to the animal and to her family, too, of trying to domesticate a wild fox in such a highly trafficked and developed location. 

Red Fox Relaxing on Sun Deck of Closed Summer Cottage

Sue noted that the fox approached her repeatedly as she photographed it.  At first she thought it might be rabid, but on reflection, it may simply have lost its instinctive fear of humans from being “cared for.”  Not a useful survival trait for a wild fox.  You can see how the animal has made itself at home on the sun-drenched decking of a seaside cottage closed for the season.

Red Fox Returning to Her Litter with a Mouthful (Two Chipmunks)

We had a similar experience in South Wellfleet this spring.  A couple of female foxes raised their kits on the decks of closed cottages abutting the salt marsh of Lieutenant Island.  Not always looking in the best of condition, one of the females learned the skill of hunting chipmunks, an extremely plentiful food supply among the cottages of the Outer Cape.  Once summer residents return in June, though, life becomes more problematic for these wild foxes reared so close to human development.

Sippican Harbor Red Fox Foraging in Salt Marsh at Sunset

In 2005 we observed red fox in Marion Village along Sippican Harbor.  The one pictured above was hunting at twilight along the salt marsh surrounding Tabor Academy’s marine science center.  We spotted fox that summer and early fall romping through the Tabor campus, but haven’t seen any since then.

Fox Island Marsh Conservation Area Welcomes Endangered Babies

Sunday, September 14th, 2008

The Fox Island Marsh Conservation Area lies in South Wellfleet and, along with its neighbor the Pilgrim Spring Woodlands Conservation Area, comprises 68 acres of woods and 100 acres of salt marsh.  An exquisite parcel of these conservation lands is the Whale Bone Point Trail (see Google image below) described as the jewel in the crown for its unmatched overlook views of the Fox Island Marsh and Blackfish Creek.  These lands are owned by the Town of Wellfleet and the Wellfleet Conservation Trust.

Whale Bone Point

This last week the Fox Island Conservation Area witnessed the arrival of babies from two Massachusetts protected species: diamondback terrapins (threatened) and Eastern box turtles (species of special concern).  While the Whale Bone Point area had been assessed as box turtle habitat and the point has been documented as a terrapin nesting site, these are the very first babies of both species that have actually been discovered on the land as they were being born.   The conservationists, environmentalists and naturalists who worked to protect this precious habitat deserve two thumbs up, one for each of these listed species.

One of Four Eastern Box Turtle Hatchlings

Last week a resident abutting the Whale Bone Point area discovered four Eastern box turtle hatchlings in a nest in her mulched landscaping.  That story was reported below under Eastern Box Turtle Hatchlings.  These adorable babies were a bit disoriented, one might even say “grumpy,” at being so uncerimoniously disturbed from their post-natal snooze, and they were a little dehydrated, too.  So, after a few days of turtle R&R, the foursome was released into the protected woodlands of Whale Bone Point near their nest site.

Release of Eastern Box Turtle Hatchlings

After releasing these box turtle hatchlings on Friday, we trekked down to the tip of Whale Bone Point where we had documented diamondback terrapin nesting since 2000 based on depredated nests and discarded egg shells.  We discovered three emergence holes within about 12 inches of each other that contained the remnants of escaped hatchlings, undeveloped eggs and some eggs that had been destroyed by root and insect predation.  In the middle nest, tucked under the lip and cradled in roots that had drained moisture from the nest and had contorted the embryos inside their egg shells within their nose-like grip, three pipped and cracked eggs remained.  One had not survived the attack, but two others were alive, albeit distorted, severely dehydrated and frozen in a trance-like stupor.  The clip below documents our removal of one of these hatchlings from its egg cocoon; the babies were so weak that they couldn’t free themselves from the dried egg shell and dig themselves out of the nest.

Rescue of Terrapin Hatchling Trapped by Roots and Dehydration

You can see from the clip above how undersized these hatchlings are.  The image below gives you a good sense of their actual size.

Undersized Terrapin Hatchlings

The good news:  Terrapins (and most turtles, actually) are Timex critters.  “They take a licking and keep on ticking.”  Turtles are extremely resilient.  Given a little TLC, even the most hapless turtle can be given a head-start toward survival.  These two babies just need a few days of care before they, too, will join their siblings in the nursery salt marsh abutting the Fox Island Marsh Conservation Area.  And in about eight years … Mark your calendar for June 15th, 2016 … they may be returning to Whale Bone Point to deposit their own nest of hatchlings.  And so the cycle goes on.  Save one turtle and your action ripples through the ages.  Precisely like the “Time Machine” that Nature truly is.

Two Terrapin Hatchlings Released at Whale Bone Point

Two-Ton Vehicle Versus Quarter Ounce Hatchling

Sunday, September 7th, 2008

Due to human development and associated pressures, some of the best remaining nesting sites for diamondback terrapins on the Outer Cape are one-lane dirt roads that abut salt marsh nursery ecosystems for hatchlings. Obviously, roadways are extremely dangerous for the female as she spends more than 30 minutes digging her nest, depositing her eggs and covering it once again.  Because these compacted roadways are so hard, and her nest sculpting creates a natural arch to spread the load of vehicular traffic, the eggs appear to do fine through June, July and August as they incubate under the summer sun.

Female Terrapin Nesting in Middle of Dirt Road

But when hatchlings begin to pip and squirm about in the nest, and when one or more begins to tunnel to the surface leaving an emergence hole in the road, then the architectural integrity that served so well during incubation is compromised.  Weight no longer is evenly distributed, and the egg chamber compresses and begins to collapse under the stress. 

Emergence Hole in Middle of Marsh Road on Lieutenant Island

I discovered this little (3 gram) hatchling wedged under the lip of the nest that had been collapsing under the day’s traffic.  Two of its siblings had already been crushed in the center of the egg chamber.

Premie Hatchling Distorted by Road Traffic

In addition to problems with its distorted shape, its eggshell had been invaded by fly maggots that were trying to find a vulnerable orifice to invade.  I had to hand-pick these nasty predators from the tiny hatchling.  Based on experience, I know that this critter will now do quite well.  With a little time, some warm hydration and a bit of TLC, its shell will resume a normal shape and it should be ready to be released into the wild within a few days to a week.

Emerged Terrapin Hatchling Run Over on Marsh Road

I wish the same could be said for another sibling (above) that I found a foot outside the nest and squished in the south tire track of the dirt road.  It’s a dangerous world for a turtle hatchling.  Few survive to tell the tale of their harrowing youth.  But with a little luck and a guardian angel or two, one turtle at a time can be saved and the whole world along with it.

Close-Up of Rescued Distorted Hatchling