The Population Dynamics of Columnar and Other Cacti: A Review

@article{Drezner2008ThePD,
  title={The Population Dynamics of Columnar and Other Cacti: A Review},
  author={Taly Dawn Drezner and Barbi Lynn Lazarus},
  journal={Geography Compass},
  year={2008},
  volume={2},
  pages={1-29}
}
In this article, we review the population cycles of cacti, with an emphasis on the large, often keystone columnar cacti of the North American deserts. These and many other cacti often experience dramatic increases and declines in their numbers. Seeds that germinate in years that provide favourable conditions for regeneration and subsequently survive establish a cohort. We first review the limitations to estimating the age of any given individual; without this information, we cannot reconstruct… 

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