Species richness and bird densities were significantly related to field margin aggregations and arranged along a decreasing gradient of landscape heterogeneity: shrubby mosaic, open mosaic, open plain plots.
We covered 10-km-survey transects by car to census medium- and large-sized farmland birds through a decreasing gradient of agricultural intensification ranging from irrigated to dry cereal farming systems in North-western Spain. North-western Spain
Indeed, we observed that although MOH patients overall had notoriously larger SSEP 1st block amplitude than controls, and deficient habituation, GRIA3 rSNP61555 SNP influenced the amplitude of blocks, according to a decreasing gradient from T/T to C/C subjects.
The estimated unconstrained effect of age on the original parameter A of model h1 is increasing with a decreasing gradient for almost the whole data range (Fig. 1 a).
The corresponding constrained effect of temp.veg of model h3 (Fig. 2 d) is monotone increasing with a weak effect below temp.veg=1400, a stronger effect above 1500 and with a slight tendency of a decreasing gradient.
We ran models varying the correlation in a correlated random walk and explored four patterns of mortality risk: uniform mortality, higher mortality in the edge at the habitat boundary, a decreasing gradient and an increasing gradient of mortality risk as individuals move away from the boundary.
