Posts

Wildlife Fellow, Jonathan Dubon Embarks on 2nd Year

Jonathan Dubon is the second Wildlife Fellow to take part in the BFREE Fellowship Program. Jonathan began working with BFREE in June 2020, immediately after the shelter-in-place order was lifted in Belize. He assists Tom Pop at the Hicatee Conservation and Research Center (HCRC), and although his program began during the COVID pandemic, his first year has been a productive one.

Under the mentorship of Tom Pop, Jonathan has learned how to feed and care for all turtles at the HCRC. He has learned to look for signs of stress and illness and to collect morphometric data during the bi-annual health assessments. He has worked closely with Tom on several projects to upgrade the facility; the most notable have been improvements to the nesting areas and the water movement.

Additionally, Jonathan has been responsible for updating and managing an ongoing census of the captive population of Hicatee turtles in residence at the HCRC. With hundreds of turtles hatching each year and with the recent turtle releases, this is no easy task. The information is constantly changing, so he has to review the data regularly to ensure accuracy. He has taken on the essential responsibilities of creating quarterly reports of activities affiliated with the HCRC, water quality testing at the HCRC, and managing the weather data for the entire field station.

Working with radio-tracking devices to better understand what happens to hicatee in the wild.

Over the past year, Jonathan has both led and co-presented on several virtual presentations. On August 27th at 12:15 EDT, he will present virtually at the 19th Annual Symposium on the Conservation of Tortoises and Freshwater Turtles. His talk is “Environmental Education and Re-wilding of the Critically Endangered Central American River Turtle (Dermatemys mawii) During the 2020 Pandemic.” He will discuss his role in the newly formed Hicatee Awareness Month planning committee and will highlight last October’s awareness campaign. He will also describe the release of the HCRC’s first re-wilded Hicatee turtles and one of the associated community outreach events. To learn more about attending the conference or to see Jonathan’s presentation visit our partner’s website and register for free here:

https://turtlesurvival.org/2021-symposium/

Jonathan has spent the last month in the field monitoring the movements of 25 recently re-wilded turtles from the 2021 hatchling cohort. He and our partners from Belize Turtle Ecology Lab are radio-tracking turtles to begin to understand how far they travel from their release point, what their habitat preferences are, and how they fare after being released.

In addition to turtles, Jonathan has an interest in snakes and large cats. In his final year as Wildlife Fellow, he hopes to work more directly with the large mammal camera trapping project. With new Panthera cameras stationed throughout the property, his involvement will likely become a reality in the very near future.

TSA-NAFTRG Turtle Survey at BFREE

Last month, the BFREE reserve became the focus of a mark-recapture survey by the Turtle Survival Alliance’s – North American Freshwater Turtle Research Group (TSA-NAFTRG).  After a year’s delay due to the COVID pandemic, the team was thrilled to get approval from Belize Fisheries Department to implement their research.

The TSA-NAFTRG team’s goals included establishing safe protocols for surveying freshwater turtles on the property, training BFREE staff on those methods, locating appropriate long-term survey sites and completing an initial assessment. Their timing couldn’t have been better: with the onset of rainy season, creeks were flowing, puddles formed regularly and turtles were everywhere.

The TSA-NAFTRG team of Eric Munscher, Arron Tuggle, Andy Weber, Collin McAvinchey, and J. Brian Hauge  were joined by BFREE staff, Tom Pop, and Jonathan Dubon as well as BFREE Fellowship Program Alum, Jaren Serano, who helped with the survey just prior to returning to the U.S. for grad school. TSA COO, Andrew Walde, and TSA Board Member/ WCS Coordinator for Turtle Conservation, Brian Horne, were also present and able to spend time in the field during the survey.

This initial assessment was deemed an incredible success with 227 turtles captured, marked, measured and safely released. Turtles found included Meso-American Slider, White-lipped Mud Turtle, Tabasco Mud Turtle, Scorpion Mud Turtle, Mexican Giant Musk Turtle, Central American Snapping Turtle, and the Furrowed Wood Turtle – representing seven of Belize’s nine freshwater turtles. (Fun fact: the Central American River turtle/ Hicatee is the only Belizean freshwater turtle that does not naturally occur on the BFREE reserve!)

We are grateful to the TSA-NAFTRG team for supplying us with the expertise and field equipment needed to ensure this survey continues and we look forward to their return trip next July!

Hicatee Health Check

Hicatee Health Checks 2016

Dr. Shane Boylan (left) performs ultrasounds on the female turtles to determine if there were eggs or follicles present. He is assisted by Dr. Thomas Rainwater while Tom Pop and Dr. Isabelle Paquet-Durand of Belize Wildlife and Referral Clinic look on.

Between September 17 and 19, the Turtle Survival Alliance (TSA) team joined BFREE staff in Belize during mid-September to perform annual health checks on all of the turtles at the Hicatee Conservation and Research Center (HCRC). The team consisted of Dr. Shane Boylan and Dr. Thomas Rainwater who were joined by Dr. Isabel Paquet, a veterinarian based out of the Belize’s Cayo District, Felicia Cruz and Gilberto Young of Belize Fisheries Department, Robert Mendyk of the Jacksonville Zoo, Dr. Ben Atkinson of Flagler College, Jacob Marlin and Tom Pop of BFREE, as well as Richard and Carol Foster, who were there to continue gathering footage for their documentary film.

Currently, there are 54 Hicatee at the center, including: 20 adult reproductive females, 16 confirmed males, many of which are either reproductive or just becoming reproductive, 6 sub-adults whose sex is yet to be determined, seven juveniles hatched in 2015 and five hatchlings from 2016.

Examinations revealed that 13 individuals previously thought to be female due to coloration have now been proven to be males because they have developed the distinct yellow head associated with adult male hicatee and are showing other signs of male sexual maturity.

ea602bb3-c36b-4da2-9c13-2ea04ac7b39b

Ms. Felicia Cruz, Belize Fisheries Officer and Dr. Ben Atkinson, Flagler College hold new recruits at the HCRC.

Ultrasounds performed by Shane Boylan, DVM from South Carolina Aquarium showed reproductive activity (eggs and follicles were present) in 20 of the females.  Based on these tests, we are hopeful that December will bring between 60-100 eggs. Additionally, the seven juveniles and the five recent hatchlings are all in good health and are continuing to grow.

In coming months, we will deploy a remote video camera powered by a solar system well as battery-operated camera traps in an attempt to document the females nesting. No nesting footage has ever been recorded on the Hicatee. In fact, this is the first time a captive population of Hicatee has been studied with such detail which will allow us to expand the existing knowledge on the species.

The captive breeding program continues to exceed our expectations and we anticipate it will continue growing exponentially. Current infrastructure is needed and will require immediate and extensive expansion. If you are interested in supporting our efforts to conserve this critically endangered river turtle as a donor, partner or volunteer, please contact Heather Barrett at hbarrett@bfreebz.org.

Hicatee Health Checks 2016

Robert Mendyk of the Jacksonville Zoo assists with measuring an adult male Hicatee.

Currently, Dermatemys mawii is classified as Critically Endangered (facing an extremely high risk of extinction in the near future) by the International Union for Nature and Natural Resources (IUCN), listed as endangered under the provisions of the U.S. Endangered Species Act (U.S. Fish and Wildlife Service), and listed on Appendix II of the Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES).