![]() ![]() Grazing can favour the occurrence of Isoetes spp. Both flooding period and land use were found to determine the occurrence of each of these communities. Ten groups corresponding to the following associations were recognized: Callitricho brutiae-Ranunculetum peltati, Bolboschoenetum maritimi, Glycerio declinatae-Eleocharitetum palustris, Eryngio corniculati-Preslietum cervinae, Peplido erectae-Agrostietum salmanticae, Isoeto velatae-Juncetum pygmaei, Pulicario uliginosae-Agrostietum salmanticae, Periballio laevis-Illecebretum verticillati, Loto subbiflori-Chaetopogonetum fasciculati and Trifolio resupinati-Caricetum chaetophyllae. A classification with the TWINSPAN program (Hill 1979) was also made. The relationships between species and environmental variables were studied through a canonical correlation analysis (CCA) applied to these relevés using the CANOCO program. A total of 104 relevés were undertaken according to the method of Braun-Blanquet (1979). The aim of this work is to study the relationship between land use and different seasonal pond communities, as well as their spatial and temporal distribution in the Guadiana Valley Natural Park (Mediterranean Iberian Peninsula). ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |