"42" . "Differences in the nestling diets of sympatric Redstarts Phoenicurus phoenicurus and Black Redstarts P-ochruros: Species-specific preferences or responses to food supply?" . "Sedl\u00E1\u010Dek, Ond\u0159ej" . . . "1" . "We have investigated whether differences in nestling diet found between locally sympatric Redstarts and Black Redstarts are caused by species-specific preferences or by a different food supply in their territories. The diet of nestlings in a mosaic-like urban environment was studied using the neck-collar method. We found no significant difference in the length of Redstart and Black Redstart prey items. However, the two species did bring to their nestlings invertebrates of different taxa. We used the variance partitioning method based on multivariate Redundancy Analysis to test the influence of habitat, timing of breeding, and the species of red,start itself on nestling-diet composition. Most of the variance in the nestling diet (all the canonical axes explained 70.6% of the variance) could be attributed to habitat variables (34%) and the timing of breeding (8.9%), but only 8.1% to the species of redstart."@en . "Differences in the nestling diets of sympatric Redstarts Phoenicurus phoenicurus and Black Redstarts P-ochruros: Species-specific preferences or responses to food supply?"@en . "variance partitioning; Redundancy Analysis; seasonal variation; urban environment; local sympatry; interspecific competition; diet selection"@en . . "Exnerov\u00E1, Alice" . . "RIV/60076658:12310/07:43881803!RIV12-MSM-12310___" . . . . . "12310" . . . "We have investigated whether differences in nestling diet found between locally sympatric Redstarts and Black Redstarts are caused by species-specific preferences or by a different food supply in their territories. The diet of nestlings in a mosaic-like urban environment was studied using the neck-collar method. We found no significant difference in the length of Redstart and Black Redstart prey items. However, the two species did bring to their nestlings invertebrates of different taxa. We used the variance partitioning method based on multivariate Redundancy Analysis to test the influence of habitat, timing of breeding, and the species of red,start itself on nestling-diet composition. Most of the variance in the nestling diet (all the canonical axes explained 70.6% of the variance) could be attributed to habitat variables (34%) and the timing of breeding (8.9%), but only 8.1% to the species of redstart." . "Differences in the nestling diets of sympatric Redstarts Phoenicurus phoenicurus and Black Redstarts P-ochruros: Species-specific preferences or responses to food supply?"@en . "P(LC06073), Z(MSM0021620828), Z(MSM6007665801)" . . "RIV/60076658:12310/07:43881803" . . . "417258" . . "000248553200012" . "Fuchs, Roman" . . . . . "1"^^ . "3"^^ . "Acta Ornithologica" . "PL - Polsk\u00E1 republika" . . "Differences in the nestling diets of sympatric Redstarts Phoenicurus phoenicurus and Black Redstarts P-ochruros: Species-specific preferences or responses to food supply?" . "8"^^ . . "[EAC49FE6E8EC]" . . . "0001-6454" .