UNFORTUNATELY, THERE WAS SOME PROBLEM WITH THE RECORDING SETUP IN THE ROOM. IRONICALLY, THE AUDIO DOES NOT SEEM TO BE WORKABLE IN THIS VIDEO ABOUT ACOUSTIC COMMUNICATION.
In this lecture, we discuss the major modes of communication and spend some time discussing how animals use these different modalities to signal each other. This lecture focuses on a variety of communication mechanisms across the modalities and how they might have been co-opted from existing mechanisms that were adapted for other functions. After discussing tactile, chemical, acoustic, visual, and electric communication, we close with a brief discussion of multi-modal signals.
Topic highlights:
- the four major communication modalities (plus electricity)
- exploration of tandem running as a behavior employing simultaneous bi-directional communication between ants
- both tactile and olfactory communication
- examples of olfactory/chemical communication
- discussion of the origins of the "tandem calling" signal as co-option of the poison/venom gland in the sting
- definition of the semiochemicals: pheromones, allomones, kairomones, and synonomes
- categories of different pheromones: volatile and headspace, non-volatile and contact
- cuticular hydrocarbons (CHC's) on insects and their evolution for desiccation mitigation and then communication
- primer and releaser signals
- examples of acoustic communication
- amplitude, frequency, and the perception of different frequencies at different amplitudes by a receiver
- stridulation (and scrapers and files)
- tymbal
- semantic communication in monkey alarm calls
- danger of noise corruption in acoustic signals
- examples of visual communication
- use of color, countershading, bioluminescence, counter-illumination
- examples of electric communication in weakly electric fish
- electrolocation and communication
- comparison to evolution of the poison gland for communication
- multi-modal communication (and redundant signals as a subset of multi-modal communication)
Important terms: communication mode/modality, antennae, semiochemical, pheromone, allomone, kairomone, synomone, volatile pheromones, headspace, contact/non-volatile pheromones, cuticular hydrocarbon (CHC), primer, releaser, stridulation, frequency, complex sound waves are viewed as sums of many different frequencies of simple oscillating sound waves, amplitude, tymbal, multi-modal communication
No comments:
Post a Comment