Showing posts with label Turtle. Show all posts
Showing posts with label Turtle. Show all posts

Friday, July 7, 2017

Turtle Eggs and Sand Piles

When the Traver Creek Project was started, one of the most interesting parts was the turtle stipulation. In order to begin the creek renovation, a permit was submitted to the Michigan Department of Environmental Quality (MDEQ.) To satisfy the MDEQ permit of the project, turtles and other herptofauna were relocated from the two inline detention basins (AKA ponds on holes #12 and #17) on Traver Creek to the pond on #8. There are at least four large snapping turtles (Chelydra serpentina) and numerous painted turtles(Chrysemys picta) in Traver Creek and there was concern over what would happen to these turtles during and after the project was completed. To help them after the project, four sand piles were created for the turtles to use as nesting areas. 

Last month, a painted turtle nest was discovered at Argo Canoe Livery. The nest was located in a high traffic area and the probability of successful hatching was low, so Natural Area Preservation (NAP) was called in to move the nest to a better location.


Argo and NAP staff locate the eggs.




The eggs after excavation. It is very important to have the eggs remain in the same orientation for proper development.



The eggs were moved to one of the sand piles at Leslie Park and covered with a predator exclusion screen. This makes it difficult for raccoons and other animals to dig up and eat the eggs.



While NAP was working, they discovered a snapping turtle nest in the same pile. The covered that nest with a predator exclusion screen, as well.


NAP also puts signs out so that people know what the screens are for and to leave them where they are.




Monday, December 5, 2016

Turtle Basking Structures

As part of the Traver Creek Restoration Project through the City of Ann Arbor owned Leslie Park Golf Course in 2013, a permit was submitted to the Michigan Department of Environmental Quality (MDEQ.) To satisfy the MDEQ permit of the project, turtles were relocated to avoid  the construction. You can read more about the turtle project HERE and HERE

After the project was complete, turtle habitat was supposed to be improved. One way to do that is to install basking structures. This is a place where the turtle can lay in the sun to warm up, while also having the ability to drop quickly back into the water to escape a predator. If you ever go canoeing along the Huron River, you will see lots of turtles on fallen trees along the river banks. We are trying to replicate this type of basking area in the ponds on #8, #12 and #17.

The first step was to find some suitable branches. An opportunity came in the form of some tree trimming we were planning on doing along #11 tee. In order to frame the shot from the Championship tees, we needed to trim back some Siberian Elm (Ulmus pumila) trees. These trees are non-native and are considered a semi-invasive species.

Once we had the correct size branches, Natural Area Preservation staff started to install the structures.

Positioning the branch in the pond.


Installing lag bolts to hold the anchors.


The "Duckbill" anchor is driven into the ground.


When the drive rod is pulled out, the anchor rotates to lock into the surrounding earth.



Waders were a necessity to place the structure properly on this cold December day.


You can see one of the structures in the pond on #8.


Another basking site near Traver Road on #12.