Shared Flashcard Set

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2013 Envirothon
Bats
44
Environmental Studies
6th Grade
12/06/2012

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Cards

Term
What is the name of the bat's order?
Definition
chiroptera
Term
How long is hoary bat?
Definition
5.1 to 5.9 inches
Term
How many inches is the wingspan of the hoary bat?
Definition
14.6 to 16.4
Term
How much does the hoary bat weigh?
Definition
0.88 oz to 1.58 oz
Term
How big is the pygmy bat?
Definition
2.9 - 3.5 inches
Term
What is the wingspan of the pygmy bat?
Definition
8.1 to 10.1 inches
Term
What is the weight of the pygmy bat?
Definition
0.14 to 0.25 oz
Term
How many species of bats are in PA?
(all the time)
Definition
9 live in PA all the time
Term
How many visitors from the south?
Definition
2
Term
What family do PA bats belong to?
Definition
Vespertililnidae
Term
What is another name for PA bats?
Definition
Evening Bat and Common Bat
Term
What do bats eat and how?
Definition
insects; take prey on the wing; in mid air and over water
Term
How much do bats consume?
Definition
up to 25% of its weight in a single feeding
Term
What is small on bats?
Definition
eyes
Term
On bat is, what is large and well developed?
Definition
ears
Term
Can bats see well?
Definition
yes
Term
What helps bats catch prey in the dark?
Definition
adaptations
Term
Describe bat sonar
Definition
Bats utter high-pitch sounds that humans can't hear; these sounds bounce off any object and bounce back to the bat's ears.
Term
How long is a bat's sound pulse?
Definition
2.5 milliseconds
Term
How do bats eat large insects?
Definition
they are disabled with a bite, put in a basket made of the bat's wings and carried to a perch for eating
Term
What happens if an insect tries to dodge the bat?
Definition
the bat flicks out a wing, nabs the prey and draws it to its mouth
Term
Describe bat teeth
Definition
Bat's have sharp teeth to chew their food into small pieces
Term
When do bats mate?
Definition
most in late summer or early fall, but some in winter
Term
Describe baby bats
Definition
born in summer; naked, blind and helpless; nursed by the mother
Term
Describe a six week old bat
Definition
almost full sized and self-sufficient; able to be on their own
Term
How many bats does one mother bat have in a year?
Definition
one to four young; one littler per year
Term
When do PA bats fly in search of food?
Definition
late afternoon, evening and early morning
Term
Do bats ever fly in the day?
Definition
yes; roost disturbance and heat stress may cause them to fly in the daytime
Term
Where are bats during the day?
Definition
Roosting alone, in pairs or small groups; in a dark space like a cave, rock crevice or hollow tree; an old building, barn, church steeple, attics
Term
How do bats sleep?
Definition
hanging upside down by their feet
Term
What do bats do in fall, winter and early spring when there are no insects?
Definition
Three species migrate south; six hibernate underground in caves
Term
Describe bat hibernation
Definition
Bats eat nothing in the winter, surviving by slowly burning fat they accumulated; temperature drops to air temperature; respiration and heart slow; blood changes
Term
Are bats hard to rouse from hibernating?
Definition
no; they are flying within about 15 minutes
Term
Describe hibernation caves
Definition
several species may hibernate together; bats may move around a cave to find better temperatures
Term
What are some myths about bats?
Definition
~prone to rabies
~guano causes tuberculosis
~aggressive and attack people
~dirty and have lice
Term
Should people handle bats? If you must clean up guano, what should you wear?
Definition
no; a mask (respirator)
Term
Why are bats so clean?
Definition
they must be clean to fly
Term
Where do colonial bats often roost?
Definition
buildings
Term
Are colonial bats harmful? Why are they a nuisance?
Definition
No; droppings, odors, noise
Term
How long does it take to remove bats? Why?
Definition
2 years
Year One: watch to see where bats are exiting; count; make bat box before August; seal entrances in the fall
Year Two: bats move into the bat box
Term
Why should people NOT seal their house in June and July?
Definition
it will trap flightless bats inside
Term
What is the problem with poisoning bats?
Definition
poisons are harmful to humans; may cause bats to scatter and fall and are more likely to contact humans and pets
Term
Are there bat pesticides?
Definition
No
Term
How do exterminators get rid of bats?
Definition
Exclusionary techniques
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