[Dtwg] protection measures for diamondback terrapins during construction

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Hi Georgina,

My first recommendation would be that if terrapins were hibernating in the creeks than there should be no winter activity in those creeks. History of their presence here during hibernation should be the guide in determining if they use the creek. They may be difficult to detect in hibernation and would require an experienced terrapin "proguer" to find them.

Attempting to remove the terrapins would be very unlikely to remove all of them resulting in mortality from the dredging. Any terrapins that were caught and recovered would not need to be reburied, but simply released, they will rebury on their own. However, they might home back to the creek where you removed them. They can still be active at these very low temperatures; they are just very slow. Check Haramis et al about collecting terrapins in the winter and post release survival.

Let me know if you have additional questions.

Best,
Willem
Willem M Roosenburg

Director, Center for Ecology and Evolutionary Studies
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> On Behalf Of Cullman, Georgina (Parks)
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Subject: [Dtwg] protection measures for diamondback terrapins during construction

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Hi all,

I'm trying to draft a protocol to protect terrapins during a saltmarsh restoration with US Army Corps of Engineers in NYC. One question that came up was about construction in creek beds during the winter when terrapins are in torpor.

One measure we are drafting relates to dredging work in creek beds. If this must happen in the winter (between Nov and April), we are directing that the area be surveyed prior to commencement of work with heavy equipment in order to make sure that there are no terrapins buried under the mud of a creek bed (we would poke under the surface to find individuals, as described in Brennessel).

If terrapins are found, would it be ok to rebury them nearby in a similar environment to where they were found, or would it be better to take them to a wildlife rehab place until it is warmer and they can be rereleased to the same site?

I would also welcome seeing any similar protocols that any of you may have drafted in the past.

Thanks in advance for your guidance! Once I'm finished drafting the protocol, I would be happy to share it with you all.

Best,
-Georgina


---
Georgina Cullman, PhD (she/her)
Ecologist | Forestry, Horticulture, and Natural Resources

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