RT Journal Article
T1 Seed bank dynamics of Mediterranean pastures subjected to mechanical disturbance
A1 Levassor, Catherine
A1 Ortega Quero, Marta
A1 Peco, Begoña
AB Vegetation and buried germinable seeds were examined in Mediterranean pastures differing both in time elapsed since last ploughing and in intensity of disturbance. Densities of buried germinable seeds in the greenhouse were determined from 10 × 10 × 3 cm soil cores taken during the autumn prior to the time of germination. Abundance of pasture species was recorded on the same sites during the following spring. The species composition of the seed bank was very similar to that of the vegetation: 80.9 % similarity (Sorensen's index). The number of species and density of buried seeds ready to germinate increased with suc‐cessional age from 0 to 4 yr and decreased later to a constant level after 9 yr. Regarding disturbance intensity, the highest species numbers are found at intermediate intensities while there is a drastic decrease at high disturbance intensity. The floristic composition of the seedbankwas analyzed through Correspondence Analysis (CA) and Binary Discriminant Analysis (BDA). Seed bank composition reflected both successional stage and intensity of disturbance. Characteristic species of both gradients were identified.
PB Wiley
SN 1100-9233
YR 1990
FD 1990
LK https://hdl.handle.net/20.500.14352/97705
UL https://hdl.handle.net/20.500.14352/97705
LA eng
NO Levassor, C., et al. «Seed Bank Dynamics of Mediterranean Pastures Subjected to Mechanical Disturbance». Journal of Vegetation Science, vol. 1, n.o 3, junio de 1990, pp. 339-44. https://doi.org/10.2307/3235709.
DS Docta Complutense
RD 5 abr 2025