This PowerPoint is meant to accompany the teacher’s activity guide and student activity book “Bats in Our Backyard: Meeting Minnesota’s Marvelous Mini Mammals”, distributed by the Lake Superior Zoo. Books, print-outs, and supplemental information are available on: www.nrri.umn.edu/bats Slideshow Development: Victoria Chraïbi, Fulbright Canada-RBC Eco-Leader 2011-2012 Sarah Wilcox, Lake Superior Zoo, Department of Education, ADDITIONAL INFORMATION Visit our bat website: www.nrri.umn.edu/bats Lake Superior Zoo Education Office: LSZoo.org, edu@lszoo.org Bat Conservation International: batcon.org Minnesota Department of Natural Resources: dnr.state.mn.us Bats in Our Backyard!

What is a bat? Mammal Only flying mammal Small Nocturnal Live in caves Eat insects and fruit wildirdarden.inc http://www.flowstonenews.com

Myths and Rumors Blind Vampires Fly into hair Dirty Carry rabies Mice

© Merlin D. Tuttle, Bat Conservation International, www.batcon.org Meet the Stars! Big Brown © Merlin D. Tuttle, Bat Conservation International, www.batcon.org

© Merlin D. Tuttle, Bat Conservation International, www.batcon.org Meet the Stars! Little Brown © Merlin D. Tuttle, Bat Conservation International, www.batcon.org

© Merlin D. Tuttle, Bat Conservation International, www.batcon.org Meet the Stars! Hoary © Merlin D. Tuttle, Bat Conservation International, www.batcon.org

© Merlin D. Tuttle, Bat Conservation International, www.batcon.org Meet the Stars! Northern Myotis © Merlin D. Tuttle, Bat Conservation International, www.batcon.org

© Merlin D. Tuttle, Bat Conservation International, www.batcon.org Meet the Stars! Tri-colored © Merlin D. Tuttle, Bat Conservation International, www.batcon.org

© Merlin D. Tuttle, Bat Conservation International, www.batcon.org Meet the Stars! Eastern Red © Merlin D. Tuttle, Bat Conservation International, www.batcon.org

© Merlin D. Tuttle, Bat Conservation International, www.batcon.org Meet the Stars! Silver-Haired © Merlin D. Tuttle, Bat Conservation International, www.batcon.org

Differences between Species Tri-colored Little brown Northern myotis Eastern red Big brown Hoary Silver-haired © Merlin D. Tuttle, Bat Conservation International, www.batcon.org

Bat body

Bat Skeleton

Bat Skeleton Ear

Bat Skeleton Eye Ear

Bat Skeleton Eye Nose Ear

Bat Skeleton Eye Nose Teeth Ear

Bat Skeleton Eye Nose Teeth Ear Fingers

Bat Skeleton Eye Nose Teeth Ear Fingers Tail

Bat Skeleton Eye Nose Teeth Ear Fingers Tail Foot

Bat Skeleton Eye Nose Teeth Ear Ribs Fingers Tail Foot

Bat Skeleton Eye Nose Teeth Ear Thumb Ribs Fingers Tail Foot

Bat Skeleton Eye Nose Wrist Teeth Ear Thumb Ribs Fingers Tail Foot

Echolocation Echolocation video by Jump Start available at http://www.youtube.com/watch?v=Hr-Y2Tt8gFE http://commons.wikimedia.org

20 bats x 1200 mosquitoes x 2 hours = Bat Math 1.) Twenty little brown bats live in a bat house colony. If one bat can catch 600 mosquitoes in one hour, how many mosquitoes can the entire colony catch in two hours? 20 bats x 1200 mosquitoes x 2 hours = 48,000 mosquitoes

Bat Math 2.) To drink water, bats skim the surface of a stream and drink water drop-by-drop or lick the water off their fur. A big brown bat flies a maximum of 30 miles a night. How close would the big brown bat want its home to be to water? 30 miles total = 15 miles there and 15 miles back = 15 miles

Bat Math 3.) Bats eat insects like moths. Bats can eat half their weight in one night. If a Northern myotis weighs 12 grams and a moth weighs 0.3 grams, how many moths can the bat eat before it feels full? 12 grams bat weight/2 = 6, so a bat can eat 6 grams 6 gram appetite/0.3 grams moth weight = 20 moths

You could eat 35 pounds of food! Bat Math 4.) A Minnesota bat can eat half its weight in insects in one night. How much food could you eat in one night if you were a bat? Depends on weight of student Example: 70 pounds/2 = 35 You could eat 35 pounds of food!

Bat Math 5.) Bats have one or two babies (pups) every year. If a tri-colored bat has pups every year for 16 years, having one pup half the time and two the other half, how many pups would she have? 8 years x 1 pup every year = 8 pups 8 years x 2 pups every year = 16 pups 8 pups + 16 pups = 24 pups total 24 pups

Human baby would weigh 45 pounds Bat Math 6.) A bat pup weighs 30% of its mother’s body weight. If a mother red bat weighs 14 grams, how much will her baby weigh? If humans were the same way, and a mother weighed 150 pounds, how much would her baby weigh? 14 grams mom weight x 0.30 = 4.2 Bat pup weighs 4.2 grams 150 pounds x 0.30 = 45 Human baby would weigh 45 pounds

Bat Math http://www.flowstonenews.com 7.) A bat colony can have over one million (1,000,000) bats living in one cave. Duluth has 86,000 people. How many times would the population of Duluth fit into a bat cave colony? 1,000,000 / 86,000 = 11.6 ~12 times

Bat Math 8.) White Nose Syndrome, a dangerous disease, can kill 90% of a bat colony. If a colony of 10,000 bats becomes sick with WNS, how many bats would survive? 10,000 x .90 = 9,000 10,000 = 9,000 = 1,000 Or… 10,000 x 0.10 = 1,000 9,000 die; 1,000 survive

Bat Math 9.) Baby bats are born in spring. They grow quickly, gaining 18% of their birth weight each day. If a pup weighs 3 grams at birth, how much would it weigh by the end of one week? 3 grams x 0.18 = 0.54 gram weight gain 0.54 gram x 7 days = 3.78 grams 3 grams birth weight + 3.78 gram weight gain = 6.78 grams

Bat Math 10.) In summer, bats that will hibernate eat a lot to store energy for winter. They hunt after dusk and before dawn. A little brown bat catches 600 mosquitoes in one hour. How many mosquitoes can a little brown bat catch in 4 hours? 600 mosquitoes x 4 hours = 2,400 mosquitoes

Bat Math 11.) In fall, a hoary bat migrates south to spend the winter. A hoary bat travels 1,400 miles from Duluth to Texas. If a hoary bat flies 20 miles per night, how many nights would it take the hoary bat to reach Texas? 1400 miles / 20 miles per night = 70 nights

Bat Math 12.) In winter, some kinds of bats hibernate. They have to wake up to drink water and urinate. If a silver-haired bat wakes up every 19 days during hibernation, and winter in Minnesota lasts six months, how many times does a silver-haired bat wake up? 6 months x ~30 days in a month = 180 days 180 days/ 19 days = ~ 10 times

Bat Benefits Pollination Pest Control Seed Dispersal http://heylittlebat.blogspot.com http://charles-harvey.co.uk Seed Dispersal Bat Cave Ecosystems http://ngm.nationalgeographic.com http://www.brac360.ky

Bat Benefits Word Search

Situation: You find bats living in your attic. Are You a Good Neighbor? Situation: You find bats living in your attic. What Should You Do? (A.) Seal the entrance the bats use. Leave them and their babies inside to die. (B.) Build a bat house somewhere else on your property. Bats will move there instead. (C.) Put speakers playing static in the attic. The bats will not like the noise and move out. (D.) Hire a professional to humanely remove the bats alive.

Situation: You find bats living in your attic. Are You a Good Neighbor? Situation: You find bats living in your attic. What Should You Do? (A.) Seal the entrance the bats use. Leave them and their babies inside to die. (B.) Build a bat house somewhere else on your property. Bats will move there instead. (C.) Put speakers playing static in the attic. The bats will not like the noise and move out. (D.) Hire a professional to humanely remove the bats .

Situation: You find a sick, injured or dead bat. Are You a Good Neighbor? Situation: You find a sick, injured or dead bat. What Should You Do? (A.) Touch it, pick it up and take it home with you. (B.) Do not touch it. Let an adult know you found it so it can be removed safely by a professional.

Situation: You find a sick, injured or dead bat. Are You a Good Neighbor? Situation: You find a sick, injured or dead bat. What Should You Do? (A.) Touch it, pick it up and take it home with you. (B.) Do not touch it. Let an adult know you found it so it can be removed safely by a professional.

Are You a Good Neighbor? Situation: You have lots of mosquitoes and annoying insects in your yard. What Should You Do? (A.) Do not use pesticides. The chemicals could make bats or other animals sick. Let the bats eat the insects; they may be gross to us, but they are yummy to bats. (B.) Use lots of pesticides to get rid of the nasty bugs.

Are You a Good Neighbor? Situation: You have lots of mosquitoes and annoying insects in your yard. What Should You Do? (A.) Do not use pesticides. The chemicals could make bats sick or other animals sick. Let the bats eat the insects; they may be gross to us, but they are yummy to bats. (B.) Use lots of pesticides to get rid of the nasty bugs.

Are You a Good Neighbor? Situation: You and your friends are walking around in winter and find a cave. What Should You Do? (A.) Go in and look around! The bats will not mind if you wake them up. (B.) Waking bats up from hibernation uses energy reserves, so they might not survive winter. Do not enter the cave.

Are You a Good Neighbor? Situation: You and your friends are walking around in winter and find a cave. What Should You Do? (A.) Go in and look around! The bats will not mind if you wake them up. (B.) Waking bats up from hibernation uses energy reserves, so they might not survive winter. Do not enter the cave.

White Nose Syndrome WNS is a deadly bat disease 1.) Identify - white, fuzzy nose or body 2.) Report - DNR 888-345-1730 3.) Prevent - Don’t enter bat caves - Clean shoes and cave gear Healthy Sick

Help Bat Conservation! Build a bat house so bats have nice places to live. Volunteer to clean up trash from forests, streams or lakes. A clean habitat makes a happy bat. Tell your political representatives that you want them to help protect bats with laws and research funding. Use the postcard below! Learn more at www.batcon.org, www.nrri.umn.edu/bats Plan a conservation project with your class or school.