The dispersal rate of the grasshopper Podisma pedestris has been measured,
with the aim of interpreting the width of a chromosomal dine. 171 adults were
marked individually, and released within the dine. 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 day1, which corresponds to a standard
deviation of 207 m gen112 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 gen112. However, the main
errors come from extrapolating from this experiment to the dine as a whole.
%0 Journal Article
%1 barton1982measurement
%A Barton, NH
%A Hewitt, GM
%D 1982
%I The Genetical Society of Great Britain
%J Heredity
%K chromosome_rearrangements clines dispersal_estimation grasshopper hybrid_zone
%N 2
%P 237--249
%T A measurement of dispersal in the grasshopper Podisma pedestris (Orthoptera: acrididae)
%U http://dx.doi.org/10.1038/hdy.1982.29
%V 48
%X The dispersal rate of the grasshopper Podisma pedestris has been measured,
with the aim of interpreting the width of a chromosomal dine. 171 adults were
marked individually, and released within the dine. 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 day1, which corresponds to a standard
deviation of 207 m gen112 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 gen112. However, the main
errors come from extrapolating from this experiment to the dine as a whole.
@article{barton1982measurement,
abstract = {The dispersal rate of the grasshopper Podisma pedestris has been measured,
with the aim of interpreting the width of a chromosomal dine. 171 adults were
marked individually, and released within the dine. 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 day1, which corresponds to a standard
deviation of 207 m gen112 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 gen112. However, the main
errors come from extrapolating from this experiment to the dine as a whole.},
added-at = {2015-09-02T23:23:48.000+0200},
author = {Barton, NH and Hewitt, GM},
biburl = {https://www.bibsonomy.org/bibtex/21d276e10b40165d6d2d05b8062930595/peter.ralph},
interhash = {e90aaa632f5d57f864b6cd34c93cc13d},
intrahash = {1d276e10b40165d6d2d05b8062930595},
issn = {0018067X},
journal = {Heredity},
keywords = {chromosome_rearrangements clines dispersal_estimation grasshopper hybrid_zone},
month = apr,
number = 2,
pages = {237--249},
publisher = {The Genetical Society of Great Britain},
timestamp = {2015-09-02T23:23:48.000+0200},
title = {A measurement of dispersal in the grasshopper {Podisma} pedestris ({Orthoptera}: acrididae)},
url = {http://dx.doi.org/10.1038/hdy.1982.29},
volume = 48,
year = 1982
}