Invasion speed is affected by geographical variation in the strength of Allee effects.

@article{Tobin2007InvasionSI,
  title={Invasion speed is affected by geographical variation in the strength of Allee effects.},
  author={Patrick C. Tobin and Stefanie L. Whitmire and Derek M. Johnson and Ottar N. Bj\ornstad and Andrew M Liebhold},
  journal={Ecology letters},
  year={2007},
  volume={10 1},
  pages={36-43}
}
Allee effects can play a critical role in slowing or preventing the establishment of low density founder populations of non-indigenous species. Similarly, the spread of established invaders into new habitats can be influenced by the degree to which small founder populations ahead of the invasion front are suppressed through Allee effects. We develop an approach to use empirical data on the gypsy moth, a non-indigenous invader in North America, to quantify the Allee threshold across geographical… CONTINUE READING

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