8 research outputs found
Evolution of communication signals and information during species radiation
Communicating species identity is a key component of many animal signals. However, whether selection for species recognition systematically increases signal diversity during clade radiation remains debated. Here we show that in woodpecker drumming, a rhythmic signal used during mating and territorial defense, the amount of species identity information encoded remained stable during woodpeckers’ radiation. Acoustic analyses and evolutionary reconstructions show interchange among six main drumming types despite strong phylogenetic contingencies, suggesting evolutionary tinkering of drumming structure within a constrained acoustic space. Playback experiments and quantification of species discriminability demonstrate sufficient signal differentiation to support species recognition in local communities. Finally, we only find character displacement in the rare cases where sympatric species are also closely related. Overall, our results illustrate how historical contingencies and ecological interactions can promote conservatism in signals during a clade radiation without impairing the effectiveness of information transfer relevant to inter-specific discrimination
ESD protection using BIMOS transistor in 100 GHz RF application for advanced CMOS technology ICICDT-2013, May 29th-31st, 2013, Pavia, Italy
International audienc
Symmetrical ESD protection for advanced CMOS technology dedicated to 100GHz RF application
International audienc
ESD robustness of FDSOI gated diode for ESD network design: thin or thick BOX?
International audienc
Improved ESD Protection in Advanced FDSOI by SON/Bulk Co-integration - EOS/ESD symposium 2010, september, Anaheim, CA USA
International audienc
Hybrid Localized SOI/Bulk technology for Low Power System-on-Chip.
International audienc