Pheromones

1

• Pheromones
• Pheromones are chemicals produced by animals and
  released into the external environment where they
  effect the physiology and/or behaviour of members
  of the same species
• This is unlike hormones, which are released into
  the internal environment of an organism and have
  an effect upon that organism
• Ethylene, a hormone released as a gas by plants,
  is one of the rare exceptions
• Often pheromones are used for intraspecies
  communication and may provide information on
• Food / Resource location
• Sexual availability
• Geographical location
• Territorial boundaries
• Threats to species/colony

2

• Pheromones
• Pheromones are chemicals produced by animals and
  released into the external environment where they
  effect the physiology and/or behaviour of members
  of the same species
• This is unlike hormones, which are released into
  the internal environment of an organism and have
  an effect upon that organism
• Ethylene, a hormone released as a gas by plants,
  is one of the rare exceptions
• Often pheromones are used for intraspecies
  communication and may provide information on
• Food / Resource location
• Sexual availability
• Geographical location
• Territorial boundaries
• Threats to species/colony

3

• Pheromones
• Pheromones are chemicals produced by animals and
  released into the external environment where they
  effect the physiology and/or behaviour of members
  of the same species
• This is unlike hormones, which are released into
  the internal environment of an organism and have
  an effect upon that organism
• Ethylene, a hormone released as a gas by plants,
  is one of the rare exceptions
• Often pheromones are used for intraspecies
  communication and may provide information on
• Food / Resource location
• Sexual availability
• Geographical location
• Territorial boundaries
• Threats to species/colony

4

• Pheromones
• Pheromones are chemicals produced by animals and
  released into the external environment where they
  effect the physiology and/or behaviour of members
  of the same species
• This is unlike hormones, which are released into
  the internal environment of an organism and have
  an effect upon that organism
• Ethylene, a hormone released as a gas by plants,
  is one of the rare exceptions
• Often pheromones are used for intraspecies
  communication and may provide information on
• Food / Resource location
• Sexual availability
• Geographical location
• Territorial boundaries
• Threats to species/colony

5

• Pheromones
• Pheromones are chemicals produced by animals and
  released into the external environment where they
  effect the physiology and/or behaviour of members
  of the same species
• This is unlike hormones, which are released into
  the internal environment of an organism and have
  an effect upon that organism
• Ethylene, a hormone released as a gas by plants,
  is one of the rare exceptions
• Often pheromones are used for intraspecies
  communication and may provide information on
• Food / Resource location
• Sexual availability
• Geographical location
• Territorial boundaries
• Threats to species/colony

6

• Pheromones
• Pheromones are chemicals produced by animals and
  released into the external environment where they
  effect the physiology and/or behaviour of members
  of the same species
• This is unlike hormones, which are released into
  the internal environment of an organism and have
  an effect upon that organism
• Ethylene, a hormone released as a gas by plants,
  is one of the rare exceptions
• Often pheromones are used for intraspecies
  communication and may provide information on
• Food / Resource location
• Sexual availability
• Geographical location
• Territorial boundaries
• Threats to species/colony

7

• Pheromones
• Pheromones are chemicals produced by animals and
  released into the external environment where they
  effect the physiology and/or behaviour of members
  of the same species
• This is unlike hormones, which are released into
  the internal environment of an organism and have
  an effect upon that organism
• Ethylene, a hormone released as a gas by plants,
  is one of the rare exceptions
• Often pheromones are used for intraspecies
  communication and may provide information on
• Food / Resource location
• Sexual availability
• Geographical location
• Territorial boundaries
• Threats to species/colony

8

• Pheromones
• Pheromones are chemicals produced by animals and
  released into the external environment where they
  effect the physiology and/or behaviour of members
  of the same species
• This is unlike hormones, which are released into
  the internal environment of an organism and have
  an effect upon that organism
• Ethylene, a hormone released as a gas by plants,
  is one of the rare exceptions
• Often pheromones are used for intraspecies
  communication and may provide information on
• Food / Resource location
• Sexual availability
• Geographical location
• Territorial boundaries
• Threats to species/colony

9

• Pheromones
• Pheromones are chemicals produced by animals and
  released into the external environment where they
  effect the physiology and/or behaviour of members
  of the same species
• This is unlike hormones, which are released into
  the internal environment of an organism and have
  an effect upon that organism
• Ethylene, a hormone released as a gas by plants,
  is one of the rare exceptions
• Often pheromones are used for intraspecies
  communication and may provide information on
• Food / Resource location
• Sexual availability
• Geographical location
• Territorial boundaries
• Threats to species/colony

10

• Pheromones
• Pheromones are chemicals produced by animals and
  released into the external environment where they
  effect the physiology and/or behaviour of members
  of the same species
• This is unlike hormones, which are released into
  the internal environment of an organism and have
  an effect upon that organism
• Ethylene, a hormone released as a gas by plants,
  is one of the rare exceptions
• Often pheromones are used for intraspecies
  communication and may provide information on
• Food / Resource location
• Sexual availability
• Geographical location
• Territorial boundaries
• Threats to individuals /colony

11
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12
Pheromones are manufactured and stored in
glandular tissues