O conceito de plantas raras na ecologia e conservação e um estudo de caso com duas espécies de bromélias do gênero Pitcairnia
Rare plants are those that have few records of occurrences and, in general, restricted geographic distribution in response to the characteristics of the species added to those of the habitats to where they have adapted, creating obstacles for their conservation and improving the understanding of the...
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| Formato: | bachelorThesis |
| Idioma: | pt_BR |
| Publicado em: |
Universidade Federal do Rio Grande do Norte
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| Endereço do item: | https://repositorio.ufrn.br/handle/123456789/54088 |
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| Resumo: | Rare plants are those that have few records of occurrences and, in general, restricted geographic distribution in response to the characteristics of the species added to those of the habitats to where they have adapted, creating obstacles for their conservation and improving the understanding of their ecology. Although rare species demand more scientific investigation for their knowledge and conservation, little is known if research on rare plants has progressed. Pitcairnia billbergioides L.B. Sm. and Pitcairnia decurvata L.B. Sm. are both rare and endemic plants of the Andes Mountains that, despite having their first occurrences recorded decades ago, are still little known from a taxonomic and conservation point of view. The present work aimed to review the literature on rare plants in ecology and consequently in conservation, analyzing bibliographic data in scientific publications in addition to redescribing Pitcairnia billbergioides and P. decurvata, complementing their information and descriptions based on specimens, field work and photographs of living specimens. The results showed an increase in research related to rare plants from the 1960s onwards due to several historical factors, in addition to a greater frequency of publications in specific places such as the Neartic and Palearctic ecoregions. In relation to the descriptions of Pitcairnia billbergioides and P. decurvata, new data about their taxonomy was found, confirming the tendency of rare plants to be less known, and enabling us to provide an amended description. |
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