Spatial memory-based behaviors for locating sources of odor plumes

Table 2 Summary of the primary rescaled (i.e., non-dimensional) variables in our analyses and their interpretations

Symbol	Interpretation
x,y	Down- and cross-stream positions, respectively
t	Time
x _source	Upwind position of source
Q	Emission rate of detectable puffs
\(\bar {U}\equiv 1\)	Constant component of wind speed
K≡1	Eddy diffusivity
σ ²≡x	Plume width parameter
U _gust	Magnitude parameter for gusts
r _gust	Mean rate of changes in gust direction
V	Moth flight speed
ρ _puff	Mean number of puffs detected per transit
r _puff	Detection radius for puffs
r _source	Detection radius for source

Symbols used in only one section of the analysis are defined in that section and omitted from this table. Scaling is with respect to the length scale, \(L = {K^{*} \over \bar {U^{*}}}\) and the time scale \(T = {K^{*} \over \bar {U^{*}}^{2}}\). See Section “Simulated plume geometry” for additional details.

ISSN: 2051-3933