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Notes from Underground: vocal communication in a eusocial rodent
Naked mole-rats are exceptionally long-lived (reported lifespans > 30 years), highly resistant to cancer and low oxygen conditions and live in colonies organized to support a single breeding female, queen. This type of social behavior is rare among mammals, although commonly found in the social insects: bees, wasps, and ants. Yet how naked mole-rats organize and maintain their elaborate social groups is largely unknown. Recent work from our group identified a critical role for vocal communication in naked mole-rats societies. Using machine learning techniques, we developed methods to automatically classify and analyze features of one vocalization type, the soft chirp, a greeting call used by naked mole-rats when they encounter one another in their subterranean habitat. We demonstrated that soft chirps encode information about individual and colony identity, suggesting the possibility of colony specific dialects. In a series of behavioral tests, we found that vocal responses were enhanced to home colony vs. foreign colony audio playbacks and to artificially generated colony-specific dialects. We further demonstrated that these dialects can be learned, as pups that were cross-fostered early in life acquired the dialect of their adoptive colonies. Colony specificity of vocal dialects is controlled in part by the presence of the queen: when the queen was lost the vocal cohesiveness of the colony dialect disintegrated. In this lecture I will highlight some of the remarkable lessons we can learn from the naked mole-rat including how vocal communication emerges as an evolutionary mechanism for enhanced cooperation.
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TQM unit is pleased to invite you to the seminar!
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CFF unit is pleased to invite you to the seminar!
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Seminar hosted by QG Unit.
Speaker: Dr. Andrea Campoleoni, Universite de Mons
Title: Carrollian and Galilean conformal higher-spin algebras in any dimensions
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Non-linear effects in Hybrid Quantum Systems--Prof. Bill Munro from NTT
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Speaker: Professor Mario Bonk, UCLA
Title: Fractals and the dynamics of Thurston maps
Abstract:
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Speaker: Dr. Florian Kogelbauer, National Institute of Advanced Industrial Science and Technology, Sendai, Japan
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Mr. Julian Weigt, Aalto University
Title: Higher dimensional techniques for the regularity of maximal functions
Abstract:
It has been an open question if maximal operators M satisfy the endpoint regularity bound \(mathop{\mathrm{var}}(Mf) \leq C \mathop{\mathrm{var}}(f)\). So far the majority of the known results has been in one dimension. I give an overview of the progress on this question with a focus on the techniques. Next I present the techniques used in the recent proofs of \(mathop{\mathrm{var}}(Mf) \leq C \mathop{\mathrm{var}}(f)\) for several maximal operators in higher dimensions. They are mostly geometric measure theoretic in the spirit of the relative isoperimetric inequality and involve a stopping time and various covering arguments.
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Mr. Julian Weigt, Aalto University
Title: Higher dimensional techniques for the regularity of maximal functions
Abstract:
It has been an open question if maximal operators M satisfy the endpoint regularity bound \(mathop{\mathrm{var}}(Mf) \leq C \mathop{\mathrm{var}}(f)\). So far the majority of the known results has been in one dimension. I give an overview of the progress on this question with a focus on the techniques. Next I present the techniques used in the recent proofs of \(mathop{\mathrm{var}}(Mf) \leq C \mathop{\mathrm{var}}(f)\) for several maximal operators in higher dimensions. They are mostly geometric measure theoretic in the spirit of the relative isoperimetric inequality and involve a stopping time and various covering arguments.
Please click here to register
*After registering, you will receive a confirmation email containing information about joining the meeting.
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Language: English