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Muldagalieva N. S. Изменение пищевого спектра муравьев рода Formica s. str. (Hymenoptera, Formicidae) на территориях Саратовской области с антропогенной нагрузкой. Izvestiya of Saratov University. New series. Series: Chemistry. Biology. Ecology, 2019, vol. 19, iss. 3, pp. 364-368. DOI: https://doi.org/10.18500/1816-9775-2019-19-3-364-368


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595.796
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Russian

Изменение пищевого спектра муравьев рода Formica s. str. (Hymenoptera, Formicidae) на территориях Саратовской области с антропогенной нагрузкой

Abstract

Ants are essential component of ecosystems. They participate in soil formation, regulate the number of insects and spread the seeds of plants. The species of the genus Formica are most noticeable in the forests of the middle zone of Russia. The number and diversity of the prey of ants decreases in the areas experiencing a recreational load. The study was conducted on the territory of the natural park “Kumysnaya Polyana” (Saratov). The forest park is experiencing an anthropogenic load because it is located on the territory of a large industrial center – the city of Saratov. To study the Н. С. Мулдагалиева. Изменение пищевого спектра муравьев рода Formica s.str. feeding characteristics of ants food objects brought in the anthill were seized. Ants inhabiting a specially protected natural area - the national park “Khvalynsky” were used for comparison. Invertebrates from 12 taxonomic groups were recorded in the prey. Most of the food spectrum consists of insects of two orders: Hymenoptera (21,6%) and Coleoptera (21,6%). There were no significant differences in the feeding of ants in different years. The decrease in the number of prey has been established in comparison with families living in protected natural areas. This fact may indicate a decrease in the number and degradation of ant families in the areas with a high anthropogenic load.

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