Bat Conservation International Bats Magazine

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Communities
that Care
Local efforts empower community members to protect bats
Bat Conservation International logo
Volume 42 • Issue 1
Issue 1 • 2023

Inside this Issue

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08
Photo: Rita Retes

Features

8Communities that care

Local efforts empower community members to protect bats

14quenching bats’ thirst

Water restoration projects are replenishing vegetation for bats

Departments

2Off the Bat

Bat Conservation International’s Executive Director Mike Daulton on protecting Endangered species

6Species Study

Hildegarde’s Tomb Bat

24Bat Chat

Dr. Veronica Zamora-Gutierrez researches ecosystem services of bats in Mexico

25Bat Squad

Student Jasalyn Franco shares her Austin Youth River Watch experience
Notes iconRead past issues of Bats Magazine at batcon.org/batsmag

news & updates

Photo: Derek Hargis
18

3Bat Signals

Conservation news and updates
  • Northern long-eared bats reclassified
  • See Bracken Cave’s Batnado this summer
  • Coming together to save Mexico’s bats
  • Recognizing pollinators

18Field Notes

Research news from around the globe
  • Gains for bats in Trinidad
  • Environmental DNA clues
  • Restoring New Mexico’s Black Canyon following a devastating wildfire
Bats Magazine Volume 42, Issue 1 cover
ON THE COVER: Jackson Bain, assistant team lead for bci’s subterranean team, emerges from Mexico’s Cueva de Oztuyehualco after conducting a LiDAR scan of the cave.
Image: Dr. Jon Flanders
Off the Bat title typography
A few words of introduction from your friends at Bat Conservation International

BCI’s Resolve to Save Endangered Species

by Mike Daulton
L

ast year was a good year for bat conservation. Among several notable accomplishments, Bat Conservation International (BCI) worked with Jamaican authorities to complete the purchase of Stony Hill Cave and the surrounding land to provide long-term protection for the last known maternity roost of Critically Endangered Jamaican flower bats (Phyllonycteris aphylla), or the “marshmallow bats” according to my youngest daughter.

We discovered the first-ever maternity roost for the Critically Endangered Hill’s horseshoe bat (Rhinolophus hilli), building on our earlier rediscovery of the bat in 2019. It had been presumed extinct for nearly 40 years before BCI and our partners found the bat in Rwanda’s Nyungwe National Park in 2019. We announced the species’ rediscovery in 2022, published the findings in Biodiversity Data Journal, and then discovered the maternity roost tree all in one year. This sets the stage for future conservation now that we understand more about the bat’s habitat needs.

Masthead

Bat Conservation International logo
Bat Conservation International (BCI) is a 501(c)(3) organization dedicated to protecting bats and their essential habitats around the world. A copy of our current financial statement and registration filed by the organization may be obtained by contacting our office in Austin, Texas, below, or by visiting batcon.org.

Main Office

500 North Capital of Texas Highway, Building 1
Austin, TX 78746
512.327.9721

Managing Editor

Kristen Pope

Chief Editor

Javier Folgar

Contributors

Michelle Donahue / Proofreader

Publication Management GLC, part of SPM Group

Bats Magazine welcomes queries from writers. Send your article proposal in a brief outline form and a description of any photos, charts, or other graphics to the Editor at pubs@batcon.org.

Members: We welcome your feedback. Please send letters to the Editor to pubs@batcon.org. Changes of address may be sent to members@batcon.org or to BCI at our Austin, Texas, address above. Please allow four weeks for the change of address to take effect.

Board of Directors
Dr. Charles C. Chester,
Chair
Dr. Andrew Sansom,
Vice Chair
Don Kendall, Treasurer
Eileen Arbues, Secretary
Dr. Gerald Carter
Gary Dreyzin
Dr. Brock Fenton
Ann George
Timo Hixon
Maria Mathis
Dr. Shahroukh Mistry
Sandy Read
Dr. Nancy Simmons
Jenn Stephens
Roger Still
Science Advisory Committee
Dr. Luis Aguirre
Dr. Enrico Bernard
Dr. Sara Bumrungsri
Dr. Gerald Carter
Dr. Liliana Dávalos
Dr. Brock Fenton
Dr. Tigga Kingston
Dr. Gary McCracken
Dr. Stuart Parsons
Dr. Paul Racey
Dr. Danilo Russo
Dr. Nancy Simmons
Dr. Paul Webala
Senior Staff

Mike Daulton, Executive Director
Mylea Bayless, Chief of Strategic Partnerships
Dr. Winifred Frick, Chief Scientist
Michael Nakamoto, Chief Operations Officer
Kevin Pierson, Chief of Conservation and Global Strategy

BCI updates and conservation news
Bat Signals title typography
federal listing

Northern Long-eared Bats Reclassified as Endangered

Endangered reclassification also proposed for tricolored bats

In November 2022, the U.S. Fish and Wildlife Service reclassified northern long-eared bats (Myotis septentrionalis) as Endangered. First listed as Threatened under the Endangered Species Act in 2015, the species has been decimated by White-nose Syndrome (WNS) across its range—which includes 37 states—and it now faces extinction.

WNS affects hibernating bats, causing them to rouse from hibernation and expend the energy they need to survive the winter, often resulting in starvation before spring. Populations of northern long-eared bats that have been impacted by WNS have declined 97–100%, and scientists expect that WNS (which currently is found in 80% of the species’ range) will affect its entire range by 2030.

In September 2022, the U.S. Fish and Wildlife Service also proposed listing the tricolored bat (Perimyotis subflavus) as Endangered due to the impact of WNS. A decision is expected this year.

A northern long-eared bat (Myotis septentrionalis) is perched on a rock.
Photo: J. Scott Altenbach
northern long-eared bat

batsignals

Bracken Cave
Mexican free-tailed bats at Bracken Cave
Mexican free-tailed bats (Tadarida brasiliensis) at Bracken Cave
Photo: Jonathan Alonzo

See Bracken Cave’s Batnado This Summer

Schedule for member events now available
Located near San Antonio, Texas, Bracken Cave is home to 20 million Mexican free-tailed bats (Tadarida brasiliensis) each summer, and Bat Conservation International (BCI) members can see millions of these bats emerge at special members-only events. Each evening, the bats emerge from the cave to forage, swirling in a “batnado,” and BCI hosts summer events where members can witness this incredible spectacle first-hand.
mexico agave
Collaborators looking over a large map
Collaborators come together to plan future agave work in Monterrey, Mexico.
Photo: Dr. Kristen Lear

Coming Together to Save Mexico’s Bats

Collaborators meet to plan future steps for agave work
During the first week of November 2022, a group of collaborators from Mexico and the U.S. came together in Monterrey, Mexico, to focus on saving Mexico’s migratory nectar-feeding bats, which rely on agave. The group first met in 2019, when it mainly consisted of nonprofit organizations and researchers, and the team worked to define priority conservation goals, build strategy, and initiate key collaborations. The 2022 group represented a significant advancement of BCI’s community engagement efforts, including numerous members of ejidos—rural agrarian communities—actively working on the conservation of these bats, as well as a variety of other landowners, state and federal authorities, researchers, and conservation groups.

Organizers initially thought around 30 people would attend the 2022 meeting, and they were thrilled when the turnout far exceeded their expectations, with 67 people attending from 22 organizations and communities. Over two and a half days, participants attended workshops and working groups, sharing experiences, challenges, and their hopes for future work.

Species study department heading
There are 1,400+ species of bats in the world. This is one of them.
Hildegarde’s tomb bat (Taphozous hildegardeae)

Hildegarde’s Tomb Bat

Endangered African bat species in decline
by Annika S. Hipple
bat stats
Bat icon

Binomial

Taphozous hildegardeae
Bats icon

Family

Emballonuridae
Bat Globe icon

Colony size

a few hundred to thousands
Scale icon

Weight

24-36 g
Spider icon

Diet

Insectivorous
Exclamation Point icon

Status

Endangered
Region

Coastal Kenya and Tanzania
Map of Southeast Africa showing habitat locations of Hildegarde's Tomb bat
Hildegarde’s tomb bat (Taphozous hildegardeae)
Photo: Dr. Paul Webala
A

long the coast of Kenya and Tanzania lies a narrow strip of land riddled with caves that provide essential habitat for a species found nowhere else: the Hildegarde’s tomb bat (Taphozous hildegardeae). This high-flying, sheath-tailed bat roosts in the caves and forages in dry coastal forests and scrublands, from Malindi in the north to Dar es Salaam in the south, as well as the islands of Pemba and Zanzibar. The species is increasingly threatened due to habitat destruction and other activities in and around the caves.

In 2020, the International Union for the Conservation of Nature (IUCN) officially listed the Hildegarde’s tomb bat as Endangered due to its limited range, fragmented colonies, and habitat decline. According to Dr. Paul Webala, senior lecturer in wildlife biology at Maasai Mara University in Narok, Kenya, who is co-author of the IUCN report, the population of Hildegarde’s tomb bats in Kenya may number fewer than 10,000—possibly no more than 5,000—bats. The numbers in Tanzania are unknown.

hat iconFeature: Communities

Communities that Care

Communities
that Care
Local efforts empower community members to protect bats
By Kristen Pope
Ejido members from Mojonera and Cañón de Santa Elena and CONANP staff pose at the entrance of Cañón de Santa Elena during a visit to the protected area.
Photo: Dr. Ana Ibarra
Local efforts empower community members to protect bats
By Kristen Pope
Sierra La Mojonera, Mexico
O

ver seven days in October 2022, a group of eight farmers and ranchers from Sierra La Mojonera, a protected natural area in northern Mexico, joined Bat Conservation International (BCI) Strategic Advisor for Endangered Species Dr. Ana Ibarra and staff from Mexico’s National Commission of Protected Areas (CONANP) to travel 2,216 miles throughout northern Mexico. This “Exchange of Experiences” trip focused on protecting land for bats and other species. It also introduced the eight ejido members—rural producers who live on and use communal land for agriculture and ranching—to producers from protected areas in other parts of the country to learn about sustainable land management that will simultaneously support the producers’ livelihoods and bat conservation.

Leaf iconFeature: Restoration

Springs, waterholes, and vegetation are key to restoration work

By Lynn Davis

Quenching Bats’ Thirst in the Parched Southwest

Quenching Bats' Thirst in the Parched Southwest typography
BCI Restoration Crew Member Montana Horchler records a location at Mud Spring, a BLM-BCI restoration site.
Photo: BCI
Springs, waterholes, and vegetation are key to restoration work
By Lynn Davis
W

ater is the new gold in the southwestern United States. High temperatures, increased evaporation of surface water, and reduced snowfall have resulted in unprecedented water shortages in western reservoirs, according to a report from the Climate Office of the National Oceanic and Atmospheric Administration (NOAA). The report projects broad threats to drinking, agricultural, and tribal water supplies, noting that hydropower generation, fishing, and recreational activities are also at risk. These shortages also impact wildlife, including bats.

BCI Water for Wildlife Field Lead, Ethan Sandoval, speaks with boots-on-the-ground knowledge of the impact of diminishing water resources on North American bats.

Field notes Research news from around the globe
Macconnell’s Bats (Mesophylla macconnelli)
Photo: Derek Hargis

The Bat Island of the Caribbean

A local conservation organization makes huge gains for bats in Trinidad
by Annika S. Hipple
WHEN IT COMES TO BATS, Trinidad far outranks any other Caribbean island, with 70 known species. The newest species, a type of Gardnerycteris, or hairy-nosed bat (known as Mimon in Trinidad), was discovered in early 2022 and is still being studied.

“It’s one of those extravagantly decorated bats with echolocation,” Trinidadian naturalist Geoffrey Gomes says. “It has the big ears, big noseleaf. It is quite stunning in its sort of bizarre look.”

The only endemic mammal known to exist on Trinidad and Tobago is Sir David Attenborough’s myotis (Myotis attenboroughi), which has only been found on Tobago, and was identified fairly recently.

fieldnotes

A Tool to Solve Migration Mysteries

Studying environmental DNA provides clues to bat behavior
by Shaena Montanari
When nectar-feeding bats stop at a flower for a snack, they leave small clues behind—specifically saliva, which contains their DNA. Dr. Kristen Lear, BCI’s Agave Restoration Program Manager, and colleagues are developing a way to use the traces of bat DNA for conservation.

For the past few years, Dr. Lear’s team has been examining whether they could use environmental DNA, or eDNA, to detect the presence of nectar-feeding Mexican long-nosed bats (Leptonycteris nivalis) on agave flowers, which grow throughout Texas, New Mexico, Arizona, and Mexico.

Recently, Dr. Lear and colleagues published a paper that shows sampling for eDNA on the blossoms works and can detect the presence of Mexican long-nosed bats.

A portrait photograph of a long skinny green/yellow agave flower tree situated in a residential neighborhood area nearby a street and house on a bright sunny day
Photo: Dr. Kristen Lear
fieldnotes

After the Fire

Restoring New Mexico’s Black Canyon for bats following a devastating wildfire
by Lynn Davis
A portrait photograph of a terrain area from The Gila National Forest during the bright sunny day with a few horses scattered around and two individuals caring for/overlooking the horses surrounded by numerous trees (The Black Fire took place here in May 2022)
The Black Fire took place in the Gila National Forest in May 2022.
Photo: Dan Taylor
May 13, 2022. A fire starts 31 miles northwest of Truth or Consequences, New Mexico, in the Gila (pronounced hee-luh) National Forest. The raging fire, called the Black Fire, will eventually burn approximately 400,000 acres of rugged, forested terrain to become the second-largest fire in New Mexico’s history. Local and national media sources begin reporting on the dramatic fire.

July 2, 2022. The U.S. Forest Service incident commander announces that the fire has been contained, but some areas of the forest, including a thick stand of dead trees on a steep slope, continue to burn. The commander reports that 319 personnel have been deployed to achieve this level of containment.

fieldnotes

Images

Illustrating Bats

A BCI intern creates beautiful depictions of bats and their habitat
Kristen Burroughs headshot
TO COMPLETE her scientific illustration certificate from California State University of Monterey Bay, Kristen Burroughs spent the summer of 2022 interning for Bat Conservation International. She spent 40 hours a week examining bats—usually from photos or videos—sketching them and creating stunning illustrations depicting them.
binoculars Learn more about Kristen’s work at KristenBurroughsIllustration.com.
Bat Chat A Conversation with a noted expert
Dr. Veronica Zamora-Gutierrez sees working with more cave-dwelling bats in the future.

Dr. Veronica Zamora-Gutierrez sees working with more cave-dwelling bats in the future.

Photo: Aldo Guevara

Staying Connected with Pitaya

Researching the ecosystem services of bats in Mexico
by Shaena Montanari
D

r. Veronica Zamora-Gutierrez wants people in Mexico to know that bats provide value to ecosystems. A researcher at Centro Interdisciplinario de Investigación para el Desarrollo Integral Regional (CONACYT-CIIDIR IPN) in Durango, Mexico, she is a former BCI Student Scholar interested in studying ecosystem services that show how bats fit into the landscape and benefit people.

What is the current focus of your research?

I’m studying the ecosystem services of pollinating bats. We study a crop in Mexico called pitaya, which is very culturally and economically important in some areas. Pitaya is a fruit that grows on certain species of columnar cactus, generally from the genus Stenocereus. In collaboration with colleagues from the University of Southampton, UK, we were able to place an economic value on bat pollination of pitaya. It was not just a mathematical extrapolation—we worked with the community and estimated the dependence of the crop on bats. This study gave us a deep understanding of how important bats are for the community that relies on harvesting pitaya.

Bat Squad For the young conservartionist
Jasalyn Franco
Jasalyn Franco joined Austin Youth River Watch just like her father did in 2000.
Jasalyn Franco joined Austin Youth River Watch just like her father did in 2000.
Photo: Jasalyn Franco

Getting Up Close and Personal with Texas Bats

Student Jasalyn Franco shares her experiences
by Shaena Montanari
J

ust like her dad did in 2000, Austin, Texas, high school senior Jasalyn Franco joined Austin Youth River Watch. The group provides hands-on environmental education for high school students. Last summer, Bat Conservation International helped the group put on a “bat week” program that Franco and other students participated in to learn more about bats.

What kinds of bat-related activities did you take part in?

We were able to see bats in person at the Austin Youth River Watch office. I thought they were kind of cute! I had never seen one up close. We also go on camping trips with River Watch, so we took one to Bracken Cave in San Antonio. They have the largest bat colony in the world. We had another opportunity to go to the Congress Avenue Bridge and take a boat under the bridge to see the bats come out.
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