Lichen community response to different management situations in a protected forest of Córdoba, Argentina
; Estrabou, Cecilia ; Rodriguez, Juan Manuel 
Otros responsables
Fecha
12/2008
Editorial
Universidad Complutense de Madrid
Revista
Lazaroa
Título del libro
Nombre del evento
Fecha del evento
Institución organizadora
ISSN
0210-9778
eISSN
1988-3307
ISBN
Idioma
Inglés
Tipo del evento
Clasificación temática
Palabras clave
Resumen
La conservación de los bosques nativos es un componente esencial para el mantenimiento de la biodiversidad que sustentan, entre ellos,los líquenes que son buenos indicadores de cambios en el bosque. Éstos son sensibles a los cambios de luz, humedad, temperatura y disponi-bilidad de nutrientes producidos por la deforestación y otros procesos de cambio en el bosque.A fin de conocer la respuesta de las comunidades liquénicas a la fragmentación de bosque se realizó un inventario de la comunidad endos unidades boscosas con dos distintas situaciones de manejo. Se realizó un cuadro fitosociológico de la comunidad liquénica, se evaluaronl as estrategias reproductivas presentes en cada área y se realizó unACP. Los muestreos fueron al azar con un total de sesenta forófitos, en los cuales se midió la cobertura total por especie sobre una malla de 30x30 cm.Se determinaron veinte géneros, con 36 especies en total a excepción de los líquenes crustáceos que no se determinaron a nivel específico y fueron considerados como un grupo. Se determinaron dos comunidades liquénicas diferentes, una comunidad A dominada por Canoparmelia crozalsiana de la zona boscosa con poco disturbio y otra B de la zona boscosa con mayor degradación, dominada por Parmotrema reticulatum. Los análisis de estrategias reproductivas mostraron una mayor presencia de especies con reproducción asexual en el área boscosa menos degradada.
The conservation of native forests is an essential component for the maintenance of the biodiversity that they sustain, including lichens,which are good indicators of changes in the forest. These are sensitive to the changes of light, humidity, temperature and availability of nutrients produced by the deforestation and other processes of change in the forest.In order to know the response of the lichen communities to forest disturbance, we did an analysis of the community in two forest units with different management situations.We made a phytosociological table of the lichen community and a PCA analysis, and then evaluated the reproductive strategies of the species in each area.We selected the samples at random with a total of sixty phorophyte, in which the total cove-rage of the species was accounted on a 30x30 cm grid. We determined 36 species within twenty genera, with the exception of crustose lichens that we did not determine at specific level and considered as a group. Two different lichen communities are found, an “A” community dominated by Canoparmelia crozalsiana, of the forest with low disturbance and another one “B” dominated by Parmotrema reticulatum of the more disturbed forest zone. The analyses of reproductive strategies shows a greater presence of species with asexual reproduction in the less disturbed area.
The conservation of native forests is an essential component for the maintenance of the biodiversity that they sustain, including lichens,which are good indicators of changes in the forest. These are sensitive to the changes of light, humidity, temperature and availability of nutrients produced by the deforestation and other processes of change in the forest.In order to know the response of the lichen communities to forest disturbance, we did an analysis of the community in two forest units with different management situations.We made a phytosociological table of the lichen community and a PCA analysis, and then evaluated the reproductive strategies of the species in each area.We selected the samples at random with a total of sixty phorophyte, in which the total cove-rage of the species was accounted on a 30x30 cm grid. We determined 36 species within twenty genera, with the exception of crustose lichens that we did not determine at specific level and considered as a group. Two different lichen communities are found, an “A” community dominated by Canoparmelia crozalsiana, of the forest with low disturbance and another one “B” dominated by Parmotrema reticulatum of the more disturbed forest zone. The analyses of reproductive strategies shows a greater presence of species with asexual reproduction in the less disturbed area.
Colecciones
Aprobación
Revisión
Complementado por
Referenciado por
Licencia Creative Commons
Excepto donde se indique lo contrario, la licencia de este ítem se describe como by
