Lesser Long-nosed Bats: Why Do
They Migrate?
Make and Analyze a Range Map
Contributed by Dr. Ginny Dalton, Bat Biologist
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Lepto Range Map
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For years, bats' mysterious lives have presented challenges to scientists
and others trying to learn about them. The details of their lives are
hidden under the cover of darkness and facts about them are not easy
to discover. People studying the life cycle of the lesser long-nosed
bat in the desert Southwest were puzzled by many things. Among the questions
they asked were these:
- Why aren't these bats found in Arizona and New Mexico during the
winter months?
- Where do they go---and why?
- Why do they return?
These facts may (or may not!) serve as clues to help you figure out
the answers to the questions above.
Why do YOU think lesser long-nosed bats migrate? After making your own
range map and thinking about the facts on the Bat Chat page, you'll be
able to answer that question like a scientist! In this activity, you'll
make a Lepto range map, which is a map that shows the boundaries
within which a species can be found. However, your range map does not
tell you WHEN the bats were seen at each place. Therefore, we've provided
a blooming calendar that
shows some of the most important nectar sources available to bats at
different locations.
Directions for Making a Range Map
of Lesser Long-Nosed Bats
- Find a good map of Mexico. Locate the places listed below on your
map. The places are based on bat sightings at various locations in
Mexico and the U.S.
- Next, use an atlas to learn about the physical parameters of the
bats' range. Find answers to questions like these: What is the rainfall?
What is the climate of the region and how does it change with the seasons?
What landforms, vegetation and general elevations exist in this area?
- Write a paragraph telling why you think lesser long-nosed bats migrate.
Locations of Lesser Long-Nosed Bats (Use these
places to make your range map.)
Note: The localities marked with * are
as stated in the literature. The rest represent our best guess as to
the location of the closest town.
UNITED STATES:
Ajo, Arizona
Casa Grande, Arizona
Portal, Arizona
Sierra Vista, Arizona
Tucson Arizona
Animas New Mexico
MEXICO:
Buena Vista Baja *
Mulege Baja *
Candelaria Baja
Santa Rosa Baja
La Paz Baja
Puerto Escondido Baja
Ligui Baja
Tuxtla Gutierrez Chiapas *
Cintalapa Chiapas
San Cristobal de las Casas Chiapas
Tonala Chiapas
Uruachic Chihuahua
Batopilas Chihuahua
La Ciudad Durango
Mezquital Durango
Zihuatanejo Guerrero
Petatlan Guerrero
Tenexpa Guerrero
San Jeronimo Guerrero
Acapulco Guerrero
Chilpanango Guerrero
Balsas Guerrero
Apaxtla Guerrero
Chanela Jalisco *
Bolanos Ja;isco *
Lake Chapala Jalisco *
San Martin Hidalgo Jalisco *
El Tuito Jalisco
Autlan Jalisco
Tuxpan Jalisco
Valle de Bravo Mexico
Tejupilco Mexico
Tenancingo Mexico
Pomaro Michoacan
Playa Azul Michoacan
Infiernillo Michoacan
Nuevo Churumuco Michoacan
Zacapa Michoacan
Indaparapeo Michoacan
Acuitzio Michoacan
Acaponeta Nayarit *
Tepic Nayarit
Composleta Nayarit
Nayar Nayarit
Los Herreras Nuevo Leon
Mitla Oaxaca *
Teotepec Oaxaca
Napala Oaxaca
Oaxaca Oaxaca
Etla Oaxaca
Tehuantepec Oaxaca
Juchitan Oaxaca
Techuacan Puebla
Atlixco Puebla
Matehuala San Luis Potosi
Arista San Luis Potosi
Pozas de Santa Ana San Luis Potosi
Rioverde San Luis Potosi
Rayon San Luis Potosi
San Miguel Zapotitian Sinaloa *
Eldorado Sinaloa *
El Fuerte Sinaloa
Toro Sinaloa
Badiraguato Sinaloa
Pericos Sinaloa
Quelite Sinaloa
Concordia Sinaloa
Sonoita Sonora *
Carbo Sonora *
Bahia Kino Sonora *
Alamos Sonora *
Tajito Sonora *
Escuinapa Sinaloa *
Hermosillo Sonora *
Mayatan Sonora
Guaymas Sonora
San Pedro Sonora
Bacabachi Sonora
Alamos Sonora
Tapizuelas Sonora
Llera Tamanlipas
Santander Jimenez Tamanlipas
Veracruz Veracruz
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