| Titre : |
Ecologia comparada de les plantes al·lòctones de la Coma de Burg (Farrera, Pirineus centrals catalans) |
| Type de document : |
Extrait d'ouvrage |
| Auteurs : |
Àngel Maria Romo i Díez (1955-) |
| Année de publication : |
2020 |
| Importance : |
169-178 |
| Langues : |
Catalan (cat) |
| Catégories : |
[CBNPMP-Thématique] Plantes subspontanées, naturalisées, envahissantes
[CBNPMP-Géographique] Pyrénées catalanes
|
| Résumé : |
Comparative Plant Ecology of allochthonous plants from “la Coma de Burg” (Central Catalan Pyrenees) The anthropized areas from “la Coma de Burg” have been thoroughly explored. On this site 232 different vascular plants were found in the ruderal and arvense environments, 175 of them are native (76%) and 57 are allochthonous plants (24%). The latter group is made up of 36 archeophytes and 21 neophytes. These results confirm that areas such as this one, with a low population density, situated in the central Pyrenees (whit one of the lowest densities of the population of Catalonia, 1.97 hab / km2, is found) and separated from the place of passage of the main communication channels of motorized transport, are not exempt from biological invasions. In order to get to know the ecology of the allochthonous plants found in La Coma, the following functional attributes have been studied: forms of growth, mechanisms of vegetative dispersion; clonal growth organs; type of pollination; the dispersal mechanisms of diaspores; longevity of grains; human influence tolerance; cutting and grazing tolerance. The basic strategies of plants have also been calculated in accordance with John Philip Grime’s school guidelines at the “Unit of Comparative Plant Ecology (UCPE), Sheffield”. Among the results obtained are, for example, the low presence of clonal growth organs and the large number of taxa without vegetative reproduction among the studied plants. In pollination systems, the presence of anemogamous, melittophilous and myophyllilous plants is present, followed by autogamous, canttarophilous and psychophilous species. Among the mechanisms of dispersal of diaspores (seeds) anthropochory and anemochory, followed by autochory stood out. The greater knowledge of the ecology of allochthonous plants allows us to outline their future expansion and how to approach their control more effectively |
| Permalink : |
https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=146981 |
Romo i Díez, Àngel Maria (1955-)
2020
Ecologia comparada de les plantes al·lòctones de la Coma de Burg (Farrera, Pirineus centrals catalans).
In: Actes del XII Col·loqui Internacional de Botànica Pirenaica ‑ Cantàbrica. : 169-178.
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Ecologia comparada de les plantes al·lòctones de la Coma de Burg (Farrera, Pirineus centrals catalans) (2020)
