Conservation // 4 min Read

From Dusk to Dawn: Fall Update From the Field

Written by Palmetto Bluff

Nov 15, 2021

The Palmetto Bluff Conservancy began studying bats in 2015 and has established Palmetto Bluff as a long-term bat research and monitoring site. We attempt to net bats year-round and divide our netting effort into seasonal netting “sessions,” with each session having specific objectives. The fall 2021 session ended in late October and, while it was less successful than usual, we had a few exciting captures.

We had two major goals for netting this fall. This first was to continue monitoring bat abundance and diversity throughout the year. The second was to target male Seminole bats so we could track them to their roosts. Last month, you read about the research Sam Holst, Conservancy research fellow, is conducting on the roosting habits of Seminole bats in the summer. We are directing a similar study on the differences in the roosting habits of male Seminole bats between summer and autumn. This study began in the fall of 2020 and this is the final year of the project.

Seminole bats roost in the foliage of trees, often hanging on to leaves, pine needles, or pine cones with one foot. They wrap their furred tail around them like a blanket and tuck their head between their forearms.
Seminole bats roost in the foliage of trees, often hanging on to leaves, pine needles, or pine cones with one foot. They wrap their furred tail around them like a blanket and tuck their head between their forearms.

With autumn comes earlier sunsets and lower temperatures. We usually see a more rapid decrease in temperature throughout the night during fall and spring versus summer and winter. This more rapid temperature change can affect when bats are foraging. Throughout the fall netting session, we open our nets earlier on each subsequent night, following the shift in sunset and the resulting earlier emergence of bats from their roosts.

Our fall 2021 session was not as productive as spring and summer of this year. That was to be expected, as we typically have a lower capture success rate in the fall than spring and summer. Even so, this year we caught fewer bats during the fall session than in previous years. Our fall 2021 netting effort consisted of 12 nights from September 23 – October 25. Of those 12 nights, we had five where we did not catch any bats. This is a higher number of nights with no captures than usual, but we were netting sites that we do not normally net in an attempt to survey a larger area of Palmetto Bluff.

We captured 12 bats of three different species, including six Seminole, five tri-colored, and one northern yellow. We averaged capturing one bat per night in the fall, compared to 9 bats per night in the summer, and 4.5 bats per night in the spring. This was the first session of the year where we did not recapture bats from previous years.

We captured and tracked three adult male Seminole bats this fall, which, when added to the five we caught last fall, brings the total for our study to eight. We were hoping to catch five more adult males this year, but the bats did not comply. Once we caught the Seminoles, we secured a transmitter to their back, released them, and then tracked them to their roost for up to seven consecutive days. We are trying to determine if there are differences in the kinds of trees used by adult male Seminoles between the summer and the fall. This is the project’s final year, and we would like to catch four more adult males during summer 2022. Hopefully, our bats will cooperate!

The northern yellow bat we captured this fall marks the third for the year and the second female in 2021! This is particularly exciting because, prior to this year, we had not caught a female northern yellow since 2015. During 2018 and 2019, years when Clemson graduate student Kyle Shute was specifically targeting northern yellows, we only caught males (you can read his recently published study here). The second female yellow was the last bat of the year, so at least we ended the season on an exciting note!

While the fall 2021 session was somewhat disappointing, we were still able to add bats to our dataset. As the temperatures continue to drop, bat activity dwindles. We attempt to net bats year-round at Palmetto Bluff, but there are cold winter nights when our bats are not out foraging. What are our coastal bats doing during the winter? Why don’t they forage on cold nights? You’ll have to wait until next month’s post to find out!

Want to learn more about Sam and Lydia’s important work studying bats at Palmetto Bluff? Explore the Dusk to Dawn series, covering everything from common myths and urban legends to threats facing our winged friends. Learn more.

Waterways / Slow Boat to Beaufort

Photography by Gately Williams Cruise Control Palmetto Bluff lies at the heart of the vast network of rivers and creeks that connect the South Carolina Lowcountry’s barrier islands. A stone’s throw from the notable cultural and historic hubs of Savannah, Bea...

Jun 2024
palmetto bluff real estate

Real Estate / Behind the Bluff: A Journey with Palmetto Bluff Real Estate Sales Executive Tracy Schyberg

Tracy’s Journey to Palmetto Bluff Real Estate Situated in the heart of Bluffton, South Carolina, Palmetto Bluff is more than just a community—it's a place of magic and wonder. For Tracy Schyberg, a dedicated sales executive with the Palmetto Bluff Real Estate...

Jun 2024
lowcountry landscaping

Architecture & Design / Your Complete Guide to Lowcountry Landscaping

Enhancing Coastal Living With Lowcountry Landscaping Trends The Lowcountry lies along the southeastern coast of the United States, a region known for its breathtaking landscapes, rich history, and unique culture. From the charming streets of Charleston to the...

Jun 2024
moreland forest at palmetto bluff

Real Estate / Neighborhood Spotlight: Moreland Forest

Palmetto Bluff Real Estate Available in Moreland Forest Situated in the heart of the Lowcountry, Moreland Forest is a charming neighborhood known for its beautiful natural surroundings, Lowcountry architecture, and luxurious amenities. Within the lush forests...

Jun 2024
palmetto bluff real estate

Real Estate / Real Estate Sales Report: Palmetto Bluff’s First Quarter Update

Real Estate in Bluffton SC: Trends, Updates, and Insights Positioned amidst the serene Lowcountry landscape of South Carolina, Palmetto Bluff stands as a beacon of luxury and natural beauty, attracting discerning homebuyers seeking an unparalleled lifestyle. ...

May 2024

Sporting Life / 7 Underrated Fly Fishing Spots in South Carolina

With its abundance of rivers, waterways, and streams, South Carolina is one of the best destinations for fly fishing in the Southeast. Not to mention, its mild weather throughout the year makes it a great place to fish all year round. Whether you are an experi...

May 2024

Real Estate / Real Estate Spotlight: 119 Hunting Lodge Rd, 151 Squash Blossom Ln, and 127 Hunting Lodge Rd

Discover These Cozy Coastal Cottages at Palmetto Bluff The Lowcountry is a place to retreat from reality and fully immerse in the serene atmosphere, which is why so many people are drawn to making it their home. There are a plethora of luxury homes in South C...

May 2024

Artist in Residence / Birds of a Feather

Photographs by Cacky Rivers and Cameron Wilder It is a sunny, cold December morning when we meet in the Conservancy classroom in Moreland Village. Everyone is well-equipped with binoculars and all manner of cameras and giant lenses. Cacky arrives last, in a r...

May 2024

Culture / Striking Gold

Photographs and Story by Joel Caldwell Marion “Rollen” Chalmers has been garnering a lot of well-deserved attention of late. Garden & Gun, the Blue Zones project, and even the TODAY show have made the trip to Rollen’s native Hardeeville, South Carolina, t...

May 2024

Culture / Local Character: Marie McConnell

Marie McConnell Director of Member relations, Palmetto Bluff Club Where are you from and how did you get here? I am from Buffalo, New York—born and raised. Go Bills! My husband and I got married at Sea Pines in Hilton Head in 2012 and fell in love with the ...

Apr 2024
LIVE
Community Villages
Experience
Palmetto Bluff Club
On The Water
The Arts Initiative
Events
Conserve
About Us