Abstract
During the autumn-winter-spring season of 2016-2017, the Center for Breeding Steppe Animals (Orenburg region) conducted coprological surveys of herbivores. Identified contamination strongylata have yaks and camels at a low infestation intensity. These animals were not dehelmintizated in the autumn period. By spring, the strongylate infestation intensity in camels increased. The kiangs and Przewalski’s horses kept here were subjected to autumn dehelmintization. In these animals, helminths were not detected during the entire study period. It is recommended to carry out planned dehelmintization of animals kept in small protected areas.
Highlights
The development of the steppe zone of Russia in the late XIX-XX centuries led to a significant transformation and fragmentation of natural geosystems, a decrease in indicators of biological diversity and environmental sustainability
Feces were collected in plastic bags and delivered to the parasitological laboratory of the Orel State Agrarian University (OSAU)
Nematodes of the suborder Strongylata of the genera Haemonchus, Nematodirus, and Chabertia were detected with a low infestation intensity
Summary
The development of the steppe zone of Russia in the late XIX-XX centuries led to a significant transformation and fragmentation of natural geosystems, a decrease in indicators of biological diversity and environmental sustainability. A characteristic feature of defaunization is the reduction in the number or destruction of populations of top predators and herbivores in the ecosystem, and, as a result, the degradation of natural plant communities. The latter process is especially relevant for steppe specially protected natural areas created on the basis of incomplete ecosystems devoid of megafauna.
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