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dc.contributor.author
Gurvich, Diego Ezequiel
dc.date.available
2020-08-06T19:04:29Z
dc.date.issued
2020-02
dc.identifier.citation
Gurvich, Diego Ezequiel; The use of herbicides in South American dry forests to control shrub encroachment: A new threat to cactus species? A first assessment; Cactus and Succulent Society of America; Haseltonia; 2019; 26; 2-2020
dc.identifier.issn
1070-0048
dc.identifier.uri
http://hdl.handle.net/11336/111086
dc.description.abstract
Dry forests are home to an important diversity of cactus species. In the Americas, these forests are under an increasing pressure due to a growing demand for land to produce pastures for cattle; in addition, the use of herbicides to control shrub encroachment is increasing. As a scientific collaborator of the Environmental Police of Córdoba province, Argentina, I had the opportunity to visit five cattle ranches where herbicides were illegally applied. The product used is Pastar, produced by Dow Agrochemical, and is composed of two hormonal herbicides, aminopyralid and fluroxypyr. Since all ranch owners are in legal dispute with the government, it was not possible to conduct a quantitative research. Therefore, I recorded all cactus species present and their sanitary conditions. A total of nine cactus species were recorded. In general, all species presented low abundance in comparison to the preserved forest, indicating that mechanical control of shrubs (using tractors) had already had a negative effect on species. Moreover, some common species in these forests, such as Gymnocalycium schickendantzii and Echinopsis leucantha, were not recorded. For most cactus species, the herbicide would have minimal or no effect, since individuals were found alive and in good sanitary conditions. In a few individuals of Cereus forbesii and C. aethiops, the end of the stems was damaged. Some individuals of Stetsonia coryne and Cereus forbesii were found dead, but it is not clear whether the herbicide was the cause. Since pressure for more pastures for cattle is increasing worldwide, more studies on the effect of land use changes and the use of chemical products on cactus species in dry forests of the Americas are needed.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Cactus and Succulent Society of America
dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Cactus
dc.subject
Desmontes
dc.subject
Córdoba
dc.subject
Conservación
dc.subject.classification
Ecología
dc.subject.classification
Ciencias Biológicas
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
dc.title
The use of herbicides in South American dry forests to control shrub encroachment: A new threat to cactus species? A first assessment
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2020-07-20T15:51:24Z
dc.journal.volume
2019
dc.journal.number
26
dc.journal.pais
Estados Unidos
dc.journal.ciudad
Berkeley
dc.description.fil
Fil: Gurvich, Diego Ezequiel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto Multidisciplinario de Biología Vegetal. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto Multidisciplinario de Biología Vegetal; Argentina
dc.journal.title
Haseltonia
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://bioone.org/journals/haseltonia/volume-2019/issue-26/026.026.0106/The-Use-of-Herbicides-in-South-American-Dry-Forests-to/10.2985/026.026.0106.short
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/https://doi.org/10.2985/026.026.0106
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