Conserve Wildlife Blog

Archive for the ‘Reptiles’ Category

What did you do this summer?

Thursday, September 13th, 2012
Experience gained; many terrapins saved!

by Kristin Ryerson, CWF Terrapin Project Intern

Kristin prepares to release the injured terrapin her Dad found on Rt. 72. Photo courtesy Kristin Ryerson

“What did you do this summer?” was a question I was frequently asked by family, friends and classmates when I recently returned to college this fall. Well, where to begin! Ben Wurst, CWF’s Habitat Program Manager, set a goal this summer to lower the number of road killed Northern Diamondback Terrapins on Great Bay Boulevard in Tuckerton, NJ. In previous studies, 50 terrapins could be killed in one nesting season—the main cause? People. Careless drivers who are either speeding or simply oblivious to the many yellow signs warning them of crossing nesting terrapins and the fact that they are in the middle of an extremely vital wildlife refuge. So, this summer, I had the privilege of being the Great Bay Terrapin Project’s Intern, and my job was to help save nesting terrapins crossing the road and to take valuable data on those I saw. Ben gave me some equipment and the knowledge I would need when working on the road. Through road patrols, educating the public, maintaining the previously installed barrier fencing, painting road signs and data collection, I learned more than I had imagined and had an amazing experience.

(more…)

7 years of survival (and counting)

Monday, August 13th, 2012

A glimpse into the life of one adult female terrapin

By Stephanie Egger, Wildlife Biologist

Stephanie Egger prepares to insert a PIT tag into a terrapin in 2004.

Over the summers of 2004 and 2005, as part of my graduate research for Saint Joseph’s University and in partnership with Rutgers University Marine Field Station, I tagged 300 adult female northern diamondback terrapins to gain a better understanding of their nesting movements, nesting events, and road mortality on Great Bay Boulevard in Tuckerton, New Jersey.  These terrapins were tagged with PIT tags (Passive Integrated Transponder tags) which are the size of a grain of rice and inserted directly under the skin.  The PIT tags are individually numbered and can be read with a hand-held scanner in the field for essentially the life of the terrapin.  Some terrapins were nesting more than once per season and generally within 50 meters from their original tagged location, but a few were found great distances (1000 meters) from their initial location (See Szerlag-Egger and McRobert 2007).

Ben Wurst, our Habitat Program Manager, and Kristin Ryerson, a CWFNJ intern, were able to scan some terrapins this summer as part of the Great Bay Terrapin Project and came across one of the terrapins I tagged in 2005!  She has survived 7 years (and counting) on Great Bay Boulevard from becoming road kill on a road where 50 terrapins can be killed in a nesting season (See Szerlag and McRobert 2006).  The distance between her location in 2005 and 2012 was 826 meters!  It appears that she may have emerged from the creek and decided to travel north to nest instead of south (see Google Earth image below).  I am hopeful we can continue to monitor the terrapins on Great Bay Boulevard and collect further information on tagged terrapins as it may have management implications for the future.

An adult female terrapin who was PIT tagged in 2005 on Great Bay Boulevard and later recaptured in 2012.

Photo from the Field

Monday, May 14th, 2012
Volunteers help install innovative new barrier to reduce terrapin road kills

by Ben Wurst, Habitat Program Manager

Last week volunteers from CWF and Exelon-Oyster Creek Generating Station helped to install 1,000 feet of barrier “fencing” along the first stretch of Great Bay Blvd inside Great Bay Blvd Wildlife Management Area. The new barrier is a new design and concept for reptile conservation here in NJ and possibly the rest of N. America. While many other types of barriers have been used by other organizations this type has not. It is a corrugated rigid plastic drainage pipe that was cut in half. It was made in NJ by ADS (Advanced Drainage Solutions) and was purchased through Caterina Supply, a local supplier of the pipe. Funding was provided through a Partners Agreement between Little Egg Harbor Twp. and the U.S. Fish & Wildlife Service (who purchased the pipe). The pipe came pre-cut from ADS and was transported by Eric Schrading with USFWS. To install the pipe we trenched a ditch and then hand dug it to the width of the 10″ pipe. It was then backfilled and screwed together where two pieces met. The main reason from switching from a traditional fence type barrier to this was to reduce future maintenance. Fences are easily damaged by motor vehicles and posts have been stolen or ripped out of the ground, so they take more time to repair throughout the year. This pipe should be maintenance free and hopefully if a car drives over it only minor damage will occur…we hope!!

Volunteers and employees from Exelon-Oyster Creek helped us to install 1,000 linear feet of barrier "fencing" to help reduce road kills of northern diamondback terrapins along Great Bay Blvd. © Ben Wurst

If you’re interested in using this in your own reptile/amphibian conservation project email me and I’d be happy to help in any way possible!

Thank you to all the volunteers, vendors, and partners who help make this project a success!! To name a few: Home Depot of Manahawkin for donating the trencher for an afternoon, USFWS & Eric Schrading for purchasing and transporting the pipe, and Little Egg Harbor Twp. for their continued support of this project.

New Children’s Book Focused on Turtles

Monday, April 30th, 2012

Written by Donna M. Zappala

What Kind of Turtle Am I?  is written by Donna M. Zappala.  She is a native of New Jersey.  Donna spent many years  teaching preschool and kindergarten.   While teaching students in the early grades, Donna would begin planning her lessons with a trip to the library to find children’s books that would enhance the topic she planned to teach. Often times, she became frustrated, not finding the best book to suit her lesson. So, now she is creating those stories she knows teachers will find useful, informative and enjoyable for themselves as well as their students.

What Kind of Turtle Am I? is Donna’s second children’s book and discusses the differences between turtles, tortoises and terrapins.  It is the story of a turtle named Izzy who goes on a search to figure out what kind of turtle she is.  She stops and asks many animals along the way and discovers, little by little, some amazing facts about herself.  In the end, Izzy realizes that she is a diamondback terrapin and her search is over as she finds other diamondback terrapins to spend time with basking in the sun.

Donna enjoys visiting schools and reading to children.   Please visit her website for more information, to purchase her books, upcoming events, and news.

Observations of Rare Species Wanted!

Thursday, April 19th, 2012
NATURE WATCHING ISN’T JUST FUN, IT CAN BE USEFUL TOO

By Michael Davenport, Marine Species & GIS Programs Manager

Like many birdwatchers, although I still enjoy seeing the neighborhood cardinal in my yard, it’s the sightings of rarely encountered species, especially those classified as endangered, threatened, or special concern, which really keep my eyes scanning around during a hike.

Observations of Special Concern species, such as this Eastern Box Turtle, may be reported to the NJ Endangered Species Program. Photo by Mike Davenport.

Many birdwatchers, or nature enthusiasts of other species groups such as reptiles or butterflies, share their encounters with rare species on websites or bulletin boards.  In addition, several organizations, such as the Cornell Lab of Ornithology or NJ Audubon, recruit “citizen scientists” who collect species observation data and submit that data electronically via websites such as eBird.  That data is important for those organizations’ scientific research and assists scientists in analyzing population trends over years.  However, more often than not, it never finds its way to New Jersey’s state biologists nor the state regulators whose task it is to protect rare species habitat in the state.

The New Jersey Endangered and Nongame Species Program (ENSP) collects data for, not just rare birds, but all of the state’s endangered, threatened, and special concern species.  A Rare Wildlife Sighting Report Form is available on ENSP’s website for download as well as instructions for completing the form.  A complete list of all of the species tracked by the state can be downloaded here.

A map of the location of your observation, such as this one, should be sent with your Rare Wildlife Sighting Report Form.

Rare species data within the state’s database plays a critical role in wildlife and habitat conservation. It is the foundation of the NJ DEP’s Landscape Project, a GIS product that maps critical areas for imperiled species based upon species locations and land-use classifications. The resulting maps allow state, county, municipal, and private agencies to identify important wildlife habitats and protect them in a variety of ways. This information is used to regulate land-use within the state and assists in preserving endangered and threatened species habitat remaining in New Jersey.

Reporting your rare wildlife observation is easy.  Simply complete the form, attach a map of where the animal was observed, as well as any photographs taken, and then mail or e-mail the form and map to ENSP at the address provided on the form.  For more details about the state’s rare species mapping, please visit our webpage.