Mammal Only flying mammal Small Nocturnal Live in caves Eat insects and fruit Live in caves wildirdardeninc httpwwwflowstonenewscom Myths and Rumors Blind Vampires Fly into hair Dirty ID: 678578
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Slide1
Bats in Our Backyard!Slide2
What is a bat?
Mammal
Only flying mammal
SmallNocturnalLive in cavesEat insects and fruitLive in caves
wildirdarden.inc
http://www.flowstonenews.comSlide3
Myths and Rumors
Blind
Vampires
Fly into hairDirtyCarry rabiesMiceSlide4
Meet the Stars!
Big Brown
© Merlin D. Tuttle, Bat Conservation International, www.batcon.orgSlide5
Meet the Stars!
Little Brown
© Merlin D. Tuttle, Bat Conservation International, www.batcon.orgSlide6
Meet the Stars!
Hoary
© Merlin D. Tuttle, Bat Conservation International, www.batcon.orgSlide7
Meet the Stars!
Northern
Myotis
© Merlin D. Tuttle, Bat Conservation International, www.batcon.orgSlide8
Meet the Stars!
Tri-colored
© Merlin D. Tuttle, Bat Conservation International, www.batcon.orgSlide9
Meet the Stars!
Eastern Red
© Merlin D. Tuttle, Bat Conservation International, www.batcon.orgSlide10
Meet the Stars!
Silver-Haired
© Merlin D. Tuttle, Bat Conservation International, www.batcon.orgSlide11
Differences between Species
© Merlin D. Tuttle, Bat Conservation International, www.batcon.org
Eastern red
Northern
myotis
Silver-haired
Hoary
Big brown
Tri-colored
Little brownSlide12
Bat bodySlide13
Bat SkeletonSlide14
Bat Skeleton
EarSlide15
Bat Skeleton
Ear
EyeSlide16
Bat Skeleton
Ear
Eye
NoseSlide17
Bat Skeleton
Ear
Eye
Nose
TeethSlide18
Bat Skeleton
Ear
Eye
Nose
Teeth
FingersSlide19
Bat Skeleton
Ear
Eye
Nose
Teeth
Fingers
TailSlide20
Bat Skeleton
Ear
Eye
Nose
Teeth
Fingers
Tail
FootSlide21
Bat Skeleton
Ear
Eye
Nose
Teeth
Fingers
Tail
Foot
RibsSlide22
Bat Skeleton
Ear
Eye
Nose
Teeth
Fingers
Tail
Foot
Ribs
ThumbSlide23
Bat Skeleton
Ear
Eye
Nose
Teeth
Fingers
Tail
Foot
Ribs
Thumb
WristSlide24
Echolocation
http://commons.wikimedia.orgSlide25
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 mosquitoesSlide26
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 milesSlide27
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 mothsSlide28
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 studentExample: 70 pounds/2 = 35You could eat 35 pounds of food!Slide29
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 pups8 years x 2 pups every year = 16 pups8 pups + 16 pups = 24 pups total
24 pupsSlide30
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 = 4.2Bat pup weighs 4.2 grams
150 pounds x 0.30 = 45Human baby would weigh 45 poundsSlide31
Bat Math
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
http://www.flowstonenews.comSlide32
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 = 9,00010,000 = 9,000 = 1,000Or… 10,000 x 0.10 = 1,000
9,000 die; 1,000 surviveSlide33
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 gain0.54 gram x 7 days = 3.78 grams3 grams birth weight + 3.78 gram weight gain =
6.78 gramsSlide34
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 mosquitoesSlide35
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 nightsSlide36
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 days180 days/ 19 days =
~ 10 timesSlide37
Bat Benefits
http://heylittlebat.blogspot.com
http://charles-harvey.co.uk
http://ngm.nationalgeographic.com
http://www.brac360.ky
Pollination
Pest Control
Seed Dispersal
Bat Cave EcosystemsSlide38
Bat Benefits Word SearchSlide39
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.Slide40
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 .Slide41
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.Slide42
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.Slide43
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.Slide44
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.Slide45
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.Slide46
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.Slide47
White Nose Syndrome
WNS is a deadly bat disease
1.)
Identify - white, fuzzy nose or body2.) Report
- DNR 888-345-1730 3.) Prevent - Don’t enter bat caves
- Clean shoes and cave gear
Healthy
SickSlide48
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/batsPlan a conservation project with your class or school.