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dc.contributor.author
Gurvich, Diego Ezequiel
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dc.contributor.author
Demaio, Pablo Horacio
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dc.contributor.author
Cingolani, Ana María
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dc.contributor.author
Giorgis, Melisa Adriana
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dc.date.available
2022-06-28T16:23:39Z
dc.date.issued
2022-02
dc.identifier.citation
Gurvich, Diego Ezequiel; Demaio, Pablo Horacio; Cingolani, Ana María; Giorgis, Melisa Adriana; Does microhabitat segregation explain coexistence of globose cactus species?; Cactus and Succulent Society of America; Haseltonia; 28; 1; 2-2022; 42-47
dc.identifier.issn
1070-0048
dc.identifier.uri
http://hdl.handle.net/11336/160661
dc.description.abstract
The factors determining cactus species richness and distribution at broad scales are well understood; however, the mechanisms explaining these parameters at local scales are poorly known, particularly in mesic regions. The aim of this study was to analyze if globose cactus species are segregated in terms of the microhabitats they occupy in Córdoba Mountains, central Argentina. In an area of about 40 ha, 19 rocky outcrops including all cactus species (a total of seven species) and covering the main vegetation and topographical conditions were selected. In each of the outcrops, 10 1x1 m randomly selected plots were established. The following variables were measured in each plot: cactus species presence; cover of graminoids, forbs, bare soil, and rock (%); rock size (small, medium and large); slope inclination (°) and aspect; soil depth (cm); and vegetation height (cm). A principal component analysis was performed with environmental variables. Then, segregation of the different cactus species along the three first axes of the PCA, which accounted for most of the environmental heterogeneity, was analyzed. Echinopsis aurea and Gymnocalycium mostii occurred at sites dominated by rock with low vegetation cover. Gymnocalycium bruchii, G. capillense and Parodia submammulosa were present at sites with low rock cover, deep soils and high vegetation cover. Out of the seven cactus species, Parodia submammulossa, Gymnocalycium bruchii and G. capillense did not differ significantly in microhabitat characteristics. Thus, these three species occupied sites with similar microenvironmental conditions, whereas the remaining species occupied sites with particular environmental characteristics. Four of the seven species inhabit unique environments (they do not overlap with the other species in the multivariate space). Moreover, these three species not only are present in similar environments, but also co-occur (they were found together in the same plots). Our results indicate that at the local scale, segregation in space is an important mechanism explaining plant coexistence and local species richness.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Cactus and Succulent Society of America
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dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
CÓRDOBA MOUNTAINS
dc.subject
ECHINOPSIS
dc.subject
ENVIRONMENTAL HETEROGENEITY
dc.subject
GYMNOCALYCIUM
dc.subject
LOCAL RICHNESS
dc.subject
PARODIA
dc.subject.classification
Ecología
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dc.subject.classification
Ciencias Biológicas
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
Does microhabitat segregation explain coexistence of globose cactus species?
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2022-06-22T20:13:22Z
dc.journal.volume
28
dc.journal.number
1
dc.journal.pagination
42-47
dc.journal.pais
Estados Unidos
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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.description.fil
Fil: Demaio, Pablo Horacio. Universidad Nacional de Catamarca; Argentina
dc.description.fil
Fil: Cingolani, Ana María. 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.description.fil
Fil: Giorgis, Melisa Adriana. 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
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/pmid/https://bioone.org/journals/haseltonia/volume-28/issue-1/026.028.0105
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.2985/026.028.0105
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