title: [Recent fauna of ground-nesting birds in Transvolga steppes and its dynamics in the 20th century].
abstract: It is shown that the structure of the ground-nesting bird fauna in Transvolga steppes has changed during the 20th century. The complex of lark species characteristic of true and dry steppe has disappeared because of climate change and impact of economic activity (the establishment of windbreak and roadside forest strips), which has provided for a sharp increase in the abundance of corvid birds.
authors.forename: M L
authors.initials: ML
authors.lastname: Oparin
mesh_terms: D025041:Animal Migration / Q000502:physiology*; D000818:Animals; D001717:Birds; D003247:Conservation of Natural Resources; D017753:Ecosystem; D016468:Forestry; D009425:Nesting Behavior / Q000502:physiology*; D011157:Population Dynamics