Szukana fraza: [Abstract = "Several groups of insects constituted a high amount of nestling food, e.g.60% of all \"Orthoptera\" occurring in the meadows next to the breeding colony.In that area the total dry body mass of phytophagous invertebrates amounted to 1.4\-2.0 g per m2, of which 0.3 g were fed to the nestlings. The percentage of zoophagous invertebrates deliv\?ered to the offspring was high with about 30\-35%. From an economical point of view, Jackdaws during the breeding season are advantageous in an agricultural landscape because they reduce pest insects significantly while consuming only an insignificant amount of all seeds applied."]

Wyników: 1