PHEROMONES
,DEFINITION OF PHEROMONES
Pheromones are types of chemicals that are released by
organisms as a means of communication with organisms
of the same species.
Pheromones are species specific & produced by exocrine
glands.
Some animals release it through their urine, their skin or
even in their feces, and it is detected using smell.
Pheromones can be released for a variety of reasons
including readiness to mate, an alert to danger, showing a
certain territory or even when an animal is ovulating.
, HISTORY
• Hediger (1944) first reported the significance
of odour in communication,this specialized
communication includes smell or scent &
pheromones.
• Earlier these chemicals were referred to as
ectohormones but in 1959 Karlson & Luscher coined
the term “pheromone” for it.
• Allochemics is the term given to those chemical
signals that convey information between members of
two different species.
,DEFINITION OF PHEROMONES
Pheromones are types of chemicals that are released by
organisms as a means of communication with organisms
of the same species.
Pheromones are species specific & produced by exocrine
glands.
Some animals release it through their urine, their skin or
even in their feces, and it is detected using smell.
Pheromones can be released for a variety of reasons
including readiness to mate, an alert to danger, showing a
certain territory or even when an animal is ovulating.
, HISTORY
• Hediger (1944) first reported the significance
of odour in communication,this specialized
communication includes smell or scent &
pheromones.
• Earlier these chemicals were referred to as
ectohormones but in 1959 Karlson & Luscher coined
the term “pheromone” for it.
• Allochemics is the term given to those chemical
signals that convey information between members of
two different species.
