@article{3669,
  abstract     = {The dispersal rate of the grasshopper Podisma pedestris has been measured, with the aim of interpreting the width of a chromosomal cline. 171 adults were marked individually, and released within the cline. 169 movements were seen over three subsequent scorings; the distribution of distances, after correction for the loss of long distance dispersants, was close to a normal curve, but there was an initial shift of ten metres, perhaps towards a better habitat. The linear variance increased at about 214 m2 day- 1, which corresponds to a standard deviation of 207 m gen- 1/2 over a 20 day life span. Statistical uncertainty in this estimate can be expressed using a distribution-free maximum likelihood method, which gives support limits of 186- 270 m gen- 1/2. However, the main errors come from extrapolating from this experiment to the cline as a whole.},
  author       = {Barton, Nicholas H and Hewitt, Godfrey},
  issn         = {1365-2540},
  journal      = {Heredity},
  number       = {2},
  pages        = {237 -- 249},
  publisher    = {Springer Nature},
  title        = {{A measurement of dispersal in the grasshopper Podisma pedestris (Orthoptera: Acrididae)}},
  doi          = {10.1038/hdy.1982.29},
  volume       = {48},
  year         = {1982},
}