Izvestiya of Saratov University.
ISSN 1816-9775 (Print)
ISSN 2541-8971 (Online)


Саратовская область

Видовой состав макрозообентоса водоемов национального парка «Хвалынский» (Саратовская область, Россия)

В составе макрозообентоса водоёмов охраняемой и рекреационной зон Национального парка «Хвалынский» был отмечен 77 таксонов гидробионтов: олигохет – 3, пиявок – 3, двустворчатых моллюсков – 2, брюхоногих моллюсков – 7, ракообразных – 2, водяных клещей – 1, личинок веснянок – 1, личинок поденок – 4, личинки стрекоз – 7, личинок жесткокрылых – 4, личинок полужесткокрылых – 2, личинок чешуекрылых – 1, личинок горбаток – 1, личинок большекрылых – 1, личинок комаров-звонцов – 29, личинки перистоусых комаров – 1, личинок болотниц – 1, личинок львинок – 1, личинок бабочниц – 1,

On the distribution of Allium caeruleum and A. regelianum (Alliaceae Borkh.) in the territory of the Saratov region

Concerning the distribution of Allium caeruleum Pall. and A. regelianum A. K. Becker, recent literary sources provide confl icting information. Based on the data from the doctoral dissertation of A. O. Tarasov, the results of expeditionary research and our own herbarium collections, it is stated that Allium caeruleum is distributed in the Ozinsky (at least in the vicinity of the village of Nepryakin) and in the Aleksandrovo-Gaisky (at least in the vicinity of the village of Kamyshki) districts of the Saratov region. The presence of A.

Фауна и биотопическое распределение гамазовых клещей (Acari: Mesostigmata), из гнезд береговой ласточки (Riparia riparia (Linnaeus, 1758)) на территории Саратовской области

В результате проведённых исследований фауны гамазовых клещей в гнёздах береговой ласточки (Riparia riparia (Linnaeus, 1758)) территории Саратовской области был выявлен 21 вид гамазид из 10 семейств. Наибольшей численностью и видовым разнообразием характеризуются колонии, расположенные в чернозёме остаточно-карбонатном на известняке, наименьшее в колонии расположенной в темно-каштановой на песке. Доминантную группировку составляют 3 вида: Androlaelaps casalis (Berlese, 1887), Stratiolaelaps miles (Berlese, 1892) и Hypoaspisella lubrica (Oudemans & Voigts, 1904).

A new subspecies of gelechiid moths from the genus Neofriseria (Lepidoptera, Gelechiidae) from the Lower Volga Region (Russia)

The article provides a brief analysis on the species composition of microlepidopteran genus Neofriseria Sattler, 1960 (Gelechiidae) of the fauna of Russia and some neighboring countries. A list of six species of this genus known for the territory of Russia at present is given. One species of the genus, previously described only relating to males from Greece, is recorded for Russia (Saratov region) firstly as a new subspecies with a description and illustrations of the genital structures of both sexes.

Ecological Aspects of the Distribution and Abundance Dynamics of Woodpecker (Dendro­ copos) in the Northern Lower-Volga Region

On the basis of our 1996-2009 field surveys in the Saratov region and adjacent territories, and our analysis of the literature data, the distribution and abundance dynamics of Dendrocopos major, D. syriacus, D. medius, D. leucotos, and D. minor is considered. The present habitation of D. leucotos in the Saratov region has been established to be associated with ripe deciduous woods in the Saratov Right-Volga-bank region; the bird penetrates for nesting up to 51°40* lati­ tude North along the Khopyor and Medveditsa river valleys. D.

Новый подвид выемчатокрылых молей рода Neofriseria (Lepidoptera, Gelechiidae) с Нижнего Поволжья (Россия)

В статье кратко проанализирован видовой состав микрочешуекрылых рода Neofriseria Sattler, 1960 (Gelechiidae) фауны России и отдельных сопредельных государств. Приводится список из шести видов данного рода, известных для территории России в настоящее время. Один вид рода, описанный только по самцам из Греции, впервые указывается для России (Саратовская область) как новый подвид с описанием и изображением генитальных структур обоих полов. Отличия в строении гениталий самцов между номинативным подвидом и N. b. volgensis Piskunov et Anikin, ssp. n. обсуждаются.

REGIONAL INTEGRATION DATA BASE AS A FOUNDATION OF MONITORING AND RESERVATION RARE PLANT SPECIES IN SARATOV PROVINCE

The data base of condition rare plants species in Saratov province has been composed for the first time for region. The structure of base and patterns of presenting data in various levels are considered. Keywords: DATA BASE, RARE SPECIES OF PLANTS, MONITORING, SARATOV PROVINCE

Flora of water bodies and streams in Saratov region: The history of research and the current status

. Water plants and coastal riparian plants are an integral part of the habitat forming component of water ecosystems in Saratov region. This article gives a review of long-term research of fl ora in many water reservoirs and water streams of the Saratov region. The analysis of literature in its historical aspect showed that the degree of scientifi c knowledge about water fl ora in the Saratov region is still insuffi cient despite multiple research projects conducted at the end of the 20th and beginning of the 21st centuries.

Analysis of the distribution and populations structure of Hedysarum grandifl orum Pall. (Fabaceae) in the southern part of the Volga Upland

For the fi rst time in the southern part of the Volga Upland, a detailed study of the population distribution and structure of rare and protected species Hedysarum grandifl orum Pall., listed in the Red Books of the Russian Federation (2008) and the Saratov Region (2021), was carried out. The study was conducted in 2007–2021. To identify the distribution, data from routine observations and information from herbarium specimens, literary data and oral reports were used.

Gamasid mites (Mesostigmata: Gamasina) sampled in uninhabited nests of the common vole Microtus arvalis s. l. (Rodentia: Cricetidae) on the territory of the Dukhovnitsky district of the Saratov region

The results of a parasitological study of uninhabited nests of the common vole Microtus arvalis s.l., collected on territory of the Dukhovnitsky district of the Saratov Region in April 2019 are presented. We identifi ed nine species of gamasid mites associated with nests of the common vole. For the fi rst time, Laelaps algericus Hirst., 1925, was recorded for the fauna of the Dukhovnitsky district of the Saratov Region. We found two new to Saratov region genera of free-living mites (without species identifi cation): Laelaspis A.

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