Contribution to the knowledge of threatened Mexican cacti

Mexico is the most important center of concentration of genera and species of cacti, most of which are endemic (73 and 78% respectively). Most of the species occur in the arid or semiarid regions of the country, especially in the southeastern portion of the Chihuahuan Desert, including the Queretaro...

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Bibliográfalaš dieđut
Váldodahkkit: Hernandez, Hector M., Godinez A., Hector
Materiálatiipa: Online
Giella:spa
Almmustuhtton: Instituto de Ecología, A.C. 1994
Liŋkkat:https://abm.ojs.inecol.mx/index.php/abm/article/view/690
Govvádus
Čoahkkáigeassu:Mexico is the most important center of concentration of genera and species of cacti, most of which are endemic (73 and 78% respectively). Most of the species occur in the arid or semiarid regions of the country, especially in the southeastern portion of the Chihuahuan Desert, including the Queretaro-Hidalgo Arid Zone.  Many of the species are under collecting pressures and their habitats are being destroyed. In addition, these have a limited ability to reestablish demographically after a disturbance event.  Consequently, a significant number of mexican cacti are listed as endangered.