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Allomones
Chemicals used for signaling between different species. Compare pheromones
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Batesian mimicry
In this type of mimicry a harmless signaler imitates a dangerous one. Compare with Mullerian mimicry.
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Contact reception
Reception that requires the receiver to be in contact with the signal chemical. Compare with olfactory reception.
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Exocrine
Exocrine glands have ducts to release substances outside of the body rather than internally.
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Hormones
Chemicals produced by endocrine glands for release into the body which function in feedback and control of behavior.
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Intention movements
Incomplete behavior patterns that provide information about the activity a particular animal is about to perform and act as a signal to others.
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Mullerian mimicry
In this type of mimicry two dangerous species evolve the same signaling trait to the mutual benefit of both. Compare with Batesian mimicry.
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Olfactory reception
Reception of odors (smell). Waterborne or airborne chemicals can be detected at a distance from the source by olfactory reception. Compare with Contact reception.
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Pheromones
Chemicals used for signaling between members of the same species. Compare allomones.
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Plastic song
An intermediate stage of birdsong in which there are components of adult song patterns but the overall song is still highly variable.
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Representational information
Information about the environment external to the signaler.
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Ritualized
A behavior that once served its own purpose but has come to act as a signal about that purpose is said to have become ritualized.
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Sterotypy
Frequent repetition of a signal behavior.
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Subsong
An early stage of birdsong in which the song has little or no structure.
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Zahavi's handicap principle
This principle states that in order to be honest, a signal must be costly to the signaler.