Partnership for Bat Conservation and Management Training

9/19/18
By Merlin Tuttle

John Chenger and Julie Zeyzus interviewing Merlin for training video on bat cave management.

In early August, we accepted a partnership invitation to develop a series of bat conservation and management training videos. Though growing numbers of biologists are studying bats, few have the breadth of experience essential to meet their widely varying conservation needs. Each species has unique requirements. In order to better share my nearly 60 years of personal experience, John Chenger founder of Bat Conservation and Management, and Janet Tyburec founder of Bat Survey Solutions, invited me to collaborate. They are providing video shooting and editing, featuring my narration and illustrations.

Teresa Nichta (left) and Julie Zeyzus shooting slow motion video of Brazilian free-tailed bat (Tadarida brasiliensis) emergence.

 

 

 

Four programs are now being edited. The first, tentatively titled “Win Friends, not Battles,” explains key approaches that have most effectively won long-term cooperation. The second features the worldwide importance of bats. The third addresses greatly exaggerated disease claims, and the fourth deals with assessing cave suitability for bats and special long-term management needs.

Bad gate that caused abandonment by a large colony of cave myotis (Myotis velifer). New owners removed the gate, and the bats are now gradually returning.

Under John’s guidance, we began field shooting on August 15, greatly aided by Teresa Nichta and John’s associate, Julie Zeyzus. For the next 10 days there was little time for sleep or even eating. On my birthday, we spent seven hours filming underground, a great antidote for thinking of getting old!

Measuring roost stains left by a formerly large colony of cave myotis in a Texas cave. Stains can last for centuries, providing an invaluable estimate of past colony size.

 

Illustrating the need for such education, one of the caves we visited in a protected nature reserve, had lost its entire colony of tens of thousands of cave myotis when fire protection permitted entrance blockage by vegetation. Another cave, also well protected by its owner, had overgrowth of an invasive, introduced plant that could have prevented restoration of a formerly large colony. It only took minutes to eliminate the threat.

 

 

 

 

Videoing Brazilian free-tailed bats close-up in crevices between box beams.
Explaining how bat-friendly bridge designs have aided Texas farmers.
Sunset emergence of free-tailed bats.

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Our Premiere Member Cruise

At Merlin Tuttle’s Bat Conservation we’re overjoyed to finally launch our membership campaign. Members at the Leadership level or above were given priority invitations to view the famous Congress Avenue Bridge bat emergence with Merlin aboard a chartered Capital Cruises boat. We all gathered at the Hyatt Hotel’s lounge for drinks (and queso) and to meet and get acquainted. The first member to sign up for the cruise was Janell Cannon, the author of the classic children’s book Stellaluna.  Janell graciously signed copies of her book, which is celebrating its 25th anniversary!

Janell Cannon signed Stellaluna for members on the bat cruise. Ingrid Dehn, retired school teacher, had loved reading Stellaluna countless times to her students. The book is celebrating its 25th anniversary!
Bat Slide Scan Project team interns Renee Cornue and Max Gorman with supervisor Teresa Nichta (middle) enjoyed meeting participants on the cruise.

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Nature Nights: BATS! at the Wildflower Center

Nature Nights at the Lady Bird Johnson Wildflower Center is a free family-fun event held each summer. Merlin Tuttle and Lucas Miller were the main entertainment for Nature Nights: BATS! on June 21st. Merlin’s bat photographs captivated the children and their parents alike. Afterwards, Lucas Miller, “The Singing Zoologist,” performed for the crowd with his “silly songs about serious science.”

Live bats, courtesy of Dianne Odegard and Lee McKenzie from Austin Bat Refuge, were a big hit.

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Success in Panama!

During both weeks of our workshops, we encountered periodic rain showers, keeping the normally hot, dry-season temperatures far more comfortable than anticipated. The downside was that we had poor netting results on three nights during the second week. We shared the forest with some interesting characters, such as a black jaguar, which fortunately left us alone, though it likely observed our activities. This one was photographed on a trail camera near one of our netting sites.

 

We set up a triple-high mist net almost every night, both weeks.

Departing to net bats over the nearby river. Daniel Hargreaves is carrying the triple-high net rig in the red bag. His team of skilled instructors from the U.K., Steve and Fiona Parker and Daniel Whitby, were superb.

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More Bats from Cocobolo

During our two-week stay in Panama’s Cocobolo Nature Reserve, we recorded more than 600 bats of 53 species, more than half the total number known for the entire country. Additional species were netted nearly every night, including two on our final evening. Over our two-weeks of workshops, common vampire bats (Desmodus rotundus) and greater fishing bats (Noctilio leporinus) were participant favorites, though an incredible variety of fruit-, nectar-, and insect-eating species were seen. The hardiest of our group members often worked till dawn, bringing in a steady stream of species for portrait photos, especially during the first week. By the second week much more time was devoted to training bats to come on call, especially to locations where Merlin could photograph natural behavior, such as catching katydids.

Merlin Tuttle training a hairy big-eared bat (Micronycteris hirsuta) to come on call to a leaf to catch katydids (its natural prey) in front of bright video lights needed for high speed video shooting.

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Some non-bat Cocobolo critters

We found dozens of creatures while out netting for bats, and even at base camp. We don’t have species names for all of them but here’s a small collection of some of Cocobolo’s non-bat critters…

 

Jen Shallman with a Mussurana snake (Clelia clelia) Photo: Los Naturalistas
Gladiator tree frogs (Hypsiboas rosenbergiPhoto: Los Naturalistas
Eyelash viper (Bothriechis schlegeliiPhoto: Los Naturalistas
Brown blunt-headed vine snake (Imantodes cenchoaPhoto: Los Naturalistas
Photo by Daniel Whitby
Photo by Daniel Whitby
Photo by Daniel Whitby
Photo by Daniel Whitby
Photo by Daniel Whitby
Photo by Daniel Whitby
Bullet ants Photo by Daniel Whitby
Kind toad Photo by Daniel Whitby
Photo by Daniel Whitby
Photo by Daniel Whitby
Photo by Daniel Whitby
Photo by Daniel Whitby
Photo by Daniel Whitby
Whip scorpion Photo by Daniel Whitby
Photo by Daniel Whitby
Coral snake (Mircrurus clarkii), this was the first one of this species ever seen on Cocobolo Nature Reserve! So many discoveries to be made here.

 

 

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MTBC’s Bat Adventures continue: Panama – Week 2!

The new group arrived successfully and with bells on for Week 2.

We have three bats in training. Merlin trained a hairy big-eared bat (Micronycteris hirsuta) for photography. Within 15 minutes it was flying to his hand on call, rewarded with meal worms. Janell Cannon, the famous author of  Stella Luna, trained a white-throated round-eared bat (Lophostoma silvicolum) to eat from her hand. Her bat has a very calm temperament. Alexis and Amy trained a Niceforo’s big-eared bat (Trinycteris nicefori) for photography, a very sweet and eager gal.

Merlin guiding Janell in training the (Lophostoma silvicoluma) in a small tent provided for this purpose.
Merlin guiding Janell’s bat training.
Merlin guiding Alexis in training a (Trinycteris nicefori).

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Bats from Cocobolo

We’re just finishing up an incredible first week at Cocobolo and already caught 44 species of bats, everything from fishing bats to vampires, not to mention a wide variety of fruit, nectar, and insect eaters. Merlin added 10 additional species to his collection! Pygmy fruit-eating bats were found roosting in leaves they had cut to form “tents”.

Pygmy fruit-eating bat (Artibeus phaeotis)

Chestnut short-tailed bats were all around camp, feeding on piper fruit.

Chestnut short-tailed bat (Carollia castanea)

We caught more than 20 Common vampire bats. Frontier campesinos keep a few livestock not too far away, explaining the presence of so many vampires. Most of these seem to have lots of personality, enabling Merlin to get this cool photo. The trip participants had loads of fun shooting videos of the vampires running around on the ground on all fours.

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Hike to the Continental Divide and back!

MTBC’s Bat Adventures in Panama Week 1 group started out from our base camp for an energetic hike to the top of the mountain ridge. Some did it in 3.5 hours, some 6.5 hours, and everything in between. My GPS said I hiked 19,190 steps (about 10 miles!) and burned 2,701 calories. Some will go back at night to net for bats in this cloud forest where they hope to find different species than the ones found at the Cocobolo Nature Reserve banana plants, and along the lower river forest.

Merlin in the lead for our hike from camp straight up the vertical climb to the ridge top of the Continental Divide, about halfway between the Pacific and Caribbean.

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Off to a great start!

34 species, over a third of Panama’s 100+ bat species have been captured by our intrepid bat enthusiasts in just three nights!

Rebecca Edwards and Melissa Donnelly are raising the triple-high, while Fiona Parker looks on. This is a special rig to catch the freetail bats (high flyers) coming in to drink.

 

Fieldwork is teamwork! Melissa Donnelly and Daniel Hargreaves upright the triple-high net pole, while Fiona Parker and Baptiste Chadeyron open a mist net.

 

 

 

Processing team trio: Mary Smith weighs the bats, Karen Slote measures the bats’ forearm, and Mindy Vescovo enters all the data.

 

 

 

Melissa Donnelly has lots of experience catching bats and processing them. Here she trains Gretchen VanCleave, Maria Serrano, and Mindy Vescovo how to process the bats caught.

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