Abstract
The paper deals with the study of burdock blossoms (Asteraceae: Arctium) in the Yelabuga District of the Republic of Tatarstan where they are one of the most common species among the Compositae plants. They are mostly ruderal weeds, growing usually in waste places (abandoned orchards, wastelands, ravines, roadsides, river banks, dumps, walls of houses and fences, etc.). Some representatives of this genus are also found in the floodplain forests, sparse deciduous forests, clearings, forest edges. The paper presents some results of study of species composition and population structure of phytophagous insects, developing in inflorescences of four species of burdock (Arctium tomentozum, Arctium minus, Arctium lappa, Arctium nemorosum) on the territory of Yelabuga District of the Republic of Tatarstan. Seven experimental sites were examined, their total area is 1,0 hectares. The basic research was conducted during the spring-summer period in 20152017 at the time of active flowering plants. There were three kinds of flies-petrotrak (Diptera: Tephritidae), one kind of flies-Midge (in Russian spp.), one kind of beetle-weevil (Curculionidae) and one species of moth (Gelechiidae).
Highlights
At the second stage, four floral groups are analyzed, which are geographically isolated at the first step
We publish the results of a three-stage study of the floristic heterogeneity of the Melekess-Stavropol physiographic region located on the territory of the Samara and Ulyanovsk Regions
The area belongs to the foreststeppe zone of the Trans Volga Lowland and occupies the area of 7,7 thousand km2
Summary
Four floral groups (floristic samples) are analyzed, which are geographically isolated at the first step. Сенатор С.А., Саксонов С.В., Раков Н.С., Васюков В.М., Иванова А.В., Сидякина Л.В. В работе представлены некоторые результаты исследования видового состава и структуры популяции насекомых-фитофагов, развивающихся в соцветиях четырех видов лопухов (Arctium tomentozum, Arctium minus, Arctium lappa, Arctium nemorosum) на территории Елабужского района Республики Татарстан. Объектом исследования являлись сборы насекомых-фитофагов, обитающих в соцветиях лопухов на разных стадиях их развития в условиях Елабужского района РТ.
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