Bees - PowerPoint PPT Presentation

1 / 14
About This Presentation
Title:

Bees

Description:

Round Dance is used when food is near. Bee dances in circles, with food sample, ... Bee indicates distance to food by time spent doing one dance circuit. ... – PowerPoint PPT presentation

Number of Views:63
Avg rating:3.0/5.0
Slides: 15
Provided by: wcP2
Category:
Tags: bees | dances

less

Transcript and Presenter's Notes

Title: Bees


1
Bees
  • Dancing
  • Defending

2
Honey bees dance to tell their hive-mates where
food is located
  • Round Dance is used when food is near. Bee dances
    in circles, with food sample, letting other bees
    know what the source is and that the source is
    close.
  • Waggle Dance is used when food is far. More on
    next page...

See video of waggle dance
3
Waggle Dance is used when food is far
  • Bee indicates distance to food by time spent
    doing one dance circuit.
  • Bee indicates direction to food by direction it
    waggles (1 5 below) relative to straight up
    (straight up represents toward sun).

Drawn like this
4
Waggle Dance
A
go away from sun
go left of sun
B
F
C
5
Wheres the Flower? 1
Your hive-mate has found food!!! Where is
it? Location A, B, C, or F? Note that sun is now
to east of hive.
Waggle dance
6
Wheres the Flower? 2
Your hive-mate has found food!!! Where is
it? Location A, B, C, or F?
Waggle dance
7
Wheres the Flower? 3
Your hive-mate has found food!!! Where is
it? Location A, B, C, or F?
Waggle dance
A
B
F
C
8
Waggle Dance 1
  • Now you found food!!
  • Which way do you dance?
  • Left?
  • Right?
  • Up?
  • Down?

9
Waggle Dance 2
  • Now you found food!!
  • Which way do you dance?
  • Left?
  • Right?
  • Up?
  • Down?

10
Waggle Dance 3
  • Now you found food!!
  • Which way do you dance?
  • Left?
  • Right?
  • Up?
  • Down?

11
Waggle Dance 4
  • Now you found food!!
  • Which way do you dance?
  • Left?
  • Right?
  • Up?
  • Down?

12
AFRICANIZED HONEY BEES
  • Hybrid between African (tough) and European (lots
    of honey) honey bee.
  • Accidentally escaped in Brazil.
  • Look like European bees, but behave differently

13
Why Africanized Beesare more Dangerous
  • Defend hive from farther away
  • Get mad faster
  • More attack at once
  • Stay mad longer
  • RESULT MORE STINGS!!

14
What made Africanized Bees more aggressive in
first place?
  • A Bird
  • The Honeyguide bird
  • Directs people to hives
  • Mutualism
  • Thus the best defense is a good offense
  • In Europe, there is no such bird and the best
    defense is to stay quiet
Write a Comment
User Comments (0)
About PowerShow.com