Latitudinal patterns in Pteridophyte distribution of Continental Chile
Chilean vegetation has been described based on dominant trees and shrubs, giving little attention to less conspicuous plants such as pteridophytes sensu lato (ferns and lycophytes). These plants have different ecological demands and reproductive strategies than woody plants and are excellent tools t...
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| Lenguaje: | English |
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Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción
2015
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oai:scielo:S0717-664320150001000082015-08-19Latitudinal patterns in Pteridophyte distribution of Continental ChilePARRA,MARÍA JOSÉRODRÍGUEZ,ROBERTOCAVIERES,LOHENGRINMUÑOZ-TAPIA,LAUREANAATALA,CRISTIAN Chilean vegetation has been described based on dominant trees and shrubs, giving little attention to less conspicuous plants such as pteridophytes sensu lato (ferns and lycophytes). These plants have different ecological demands and reproductive strategies than woody plants and are excellent tools to recognize vegetation zones. In the present study we analyze the distributional patterns of the 124 pteridophyte taxa occurring in continental Chile, regarding species richness and habitat preferences distribution. Using Jaccard’s similarity index and grouping analysis, we obtained 5 pteridophyte zones that are significantly different from each other. Species richness distribution showed unimodal pattern with latitude, increasing from 17º S toward south up to a maximal value at 40º S and abruptly decreasing southward. These patterns are coincident with the habitat preference where the xerophytic species tend to decrease with latitude. In contrast, epiphytic pteridophytes increased with latitude, as temperate forests appear. Terrestrial hygrophytic species were present in all areas, but showed a southward increase. These distributions suggest an important role of the precipitation patterns, which is considered a limiting resource for pteridophytes’ life cycle.info:eu-repo/semantics/openAccessFacultad de Ciencias Naturales y Oceanográficas, Universidad de ConcepciónGayana. Botánica v.72 n.1 20152015-06-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-66432015000100008en10.4067/S0717-66432015000100008 |
| institution |
Scielo Chile |
| collection |
Scielo Chile |
| language |
English |
| description |
Chilean vegetation has been described based on dominant trees and shrubs, giving little attention to less conspicuous plants such as pteridophytes sensu lato (ferns and lycophytes). These plants have different ecological demands and reproductive strategies than woody plants and are excellent tools to recognize vegetation zones. In the present study we analyze the distributional patterns of the 124 pteridophyte taxa occurring in continental Chile, regarding species richness and habitat preferences distribution. Using Jaccard’s similarity index and grouping analysis, we obtained 5 pteridophyte zones that are significantly different from each other. Species richness distribution showed unimodal pattern with latitude, increasing from 17º S toward south up to a maximal value at 40º S and abruptly decreasing southward. These patterns are coincident with the habitat preference where the xerophytic species tend to decrease with latitude. In contrast, epiphytic pteridophytes increased with latitude, as temperate forests appear. Terrestrial hygrophytic species were present in all areas, but showed a southward increase. These distributions suggest an important role of the precipitation patterns, which is considered a limiting resource for pteridophytes’ life cycle. |
| author |
PARRA,MARÍA JOSÉ RODRÍGUEZ,ROBERTO CAVIERES,LOHENGRIN MUÑOZ-TAPIA,LAUREANA ATALA,CRISTIAN |
| spellingShingle |
PARRA,MARÍA JOSÉ RODRÍGUEZ,ROBERTO CAVIERES,LOHENGRIN MUÑOZ-TAPIA,LAUREANA ATALA,CRISTIAN Latitudinal patterns in Pteridophyte distribution of Continental Chile |
| author_facet |
PARRA,MARÍA JOSÉ RODRÍGUEZ,ROBERTO CAVIERES,LOHENGRIN MUÑOZ-TAPIA,LAUREANA ATALA,CRISTIAN |
| author_sort |
PARRA,MARÍA JOSÉ |
| title |
Latitudinal patterns in Pteridophyte distribution of Continental Chile |
| title_short |
Latitudinal patterns in Pteridophyte distribution of Continental Chile |
| title_full |
Latitudinal patterns in Pteridophyte distribution of Continental Chile |
| title_fullStr |
Latitudinal patterns in Pteridophyte distribution of Continental Chile |
| title_full_unstemmed |
Latitudinal patterns in Pteridophyte distribution of Continental Chile |
| title_sort |
latitudinal patterns in pteridophyte distribution of continental chile |
| publisher |
Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción |
| publishDate |
2015 |
| url |
http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-66432015000100008 |
| work_keys_str_mv |
AT parramariajose latitudinalpatternsinpteridophytedistributionofcontinentalchile AT rodriguezroberto latitudinalpatternsinpteridophytedistributionofcontinentalchile AT caviereslohengrin latitudinalpatternsinpteridophytedistributionofcontinentalchile AT munoztapialaureana latitudinalpatternsinpteridophytedistributionofcontinentalchile AT atalacristian latitudinalpatternsinpteridophytedistributionofcontinentalchile |
| _version_ |
1718442305941143552 |