Variación estructural en poblaciones de Denmoza rhodacantha (Cactaceae) sobre laderas de montañas en Mendoza, Argentina.
Denmoza rhodacantha (Salm-Dyck) Britton & Rose, an endemic cactus of Argentina, have greater numbers and population densities on eroded mountain slopes than on uneroded slopes. To verify this, bouth sort of sities were compared: the number of individuals was approximately 2.7 times higher...
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| Publicado en: | Revista de la Facultad de Ciencias Agrarias |
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| Acceso en línea: | https://bdigital.uncu.edu.ar/fichas.php?idobjeto=1622 |
| Sumario: | Denmoza rhodacantha (Salm-Dyck)
Britton & Rose, an endemic cactus of Argentina,
have greater numbers and population
densities on eroded mountain slopes than on
uneroded slopes. To verify this, bouth sort of
sities were compared: the number of individuals
was approximately 2.7 times higher on
eroded sites. This was particularly due to a
greater number of juvenile cactus plants on
eroded sites versus uneroded sites, where
juvenile plants were almost absent. In contrast,
a higher number of adult plants was recorded
on uneroded sites. This may be attributed to
abiotic factors such as soil removal, the
physico-chemical characteristics of the soil,
particularly the high calcium content, and the
mechanical abrasion of seed coats by the rock
particles on the eroded sites. The results of
this study could be useful for the management
and conservation of this cactus.
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