379 results match your criteria: "Institute of Systematics and Ecology of Animals[Affiliation]"

The spongy moth Lymantria dispar L. is a major forest pest causing substantial economic damage in Holarctic region. Lymantria dispar multiple nucleopolyhedrovirus isolates (LdMNPVs) have demonstrated significant potential as biological control agents against this pest.

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Potato virus S (PVS) is a widely distributed potato pathogen that typically causes mild or asymptomatic infections. Still, certain genotypes can cause up to 20% yield losses, especially when co-infected with other viruses. Aphids are the only currently recognized insect vectors of PVS; however, the mechanical transmission through plant contact is also known.

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is a globally acknowledged larval ectoparasitoid that is widely used to control lepidopteran pests. is a natural endosymbiont that regulates various aspects of the insect host biology. The ability of to paralyze and develop on lepidopteran larvae from five families was tested under laboratory conditions.

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The spectrum of ixodid ticks that bite humans in Western Siberia has significantly changed over the past two decades. In this study, we determined tick species attacking people in the vicinity of Novosibirsk and the range of bacterial agents they were infected with. This study included 301 ticks taken from people and 46% were , followed by (19.

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This paper focuses on insect remains found at the Kebezen site (51.93600° N, 87.09665° E) on the Turachak stream, Altai Republic, Russia, in layers ranging in age from 20.

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Recently obtained cypovirus strain DsCPV-1 shows potential as a biological insecticide, with its alternative host Manduca sexta (L.) being a promising producer. We confirmed DsCPV-1 replication in M.

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Clinotettix Bey-Bienko, 1933 is the small genus similar to Tetrix Latreille, 1802 but easy recognizable from the latter in the shape of a head. Two species of Clinotettex are distributed in the Russian Far East, North-East China, and Korean Peninsula. The type species of this genus is Clinotettix ussuriensis Bey-Bienko, 1933, not Acrydium sibiricum ussurianum Bey-Bienko, 1929 as erroneously considered by some researches.

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Introduction: The Phasianidae family belongs to Galliformes, which is basal to other Neognathae. Despite the availability of chromosome-level genome assemblies for many Phasianidae species, the karyotypes for some species remain poorly investigated.

Methods: In this study, we described karyotypes using classical, differential, and molecular cytogenetic (BAC-FISH) methods.

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Human liver flukes of the family Opisthorchiidae, particularly Opisthorchis viverrini and Opisthorchis felineus, are major foodborne trematode parasites endemic to the Lower Mekong River Basin (Southeast Asia) and the Ob-Irtysh Basins (southern Western Siberia, Russian Federation), respectively. Together, these parasites infect over 14 million people, with an estimated 300 million at risk. Their transmission cycles involve Bithynia snails and Cyprinidae fish as first and second intermediate hosts, respectively, with humans and other fish-eating mammals serving as definitive hosts.

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Grasshoppers (Acridoidea) are one of the most essential components of grassland ecosystems. They are mainly primary consumers and some of them, e.g.

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A critical step toward uncovering generalizable patterns of phenotype-niche relationships is understanding how functional traits have evolved as species occupy new habitats. Ecomorphological traits impact how organisms function in their environment and are predictive of habitat use and niche. Studying ecomorphological variation in the context of strong environmental filtering can provide opportunities to understand the role of convergent evolution in forming trait-habitat use patterns.

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The effect of on the viability and antimicrobial activity of the ectoparasitoid was evaluated in laboratory experiments. Two lines of the parasitoid, -infected (W+) and -free (W-), were used. Parasitoid larvae were fed with a host orally infected with a sublethal dose of (Bt) and on the host uninfected with Bt.

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The effect of different feeding habits on gut morphology and digestive function has been intensively studied during the last decades but sympatric closely related fishes are relatively rare objects of such studies. In the present study, we have identified both morphological and physiological changes in the digestive system of a sympatric pair of whitefish represented by "normal" Coregonus lavaretus pidschian (benthivorous) and "dwarf" C. l.

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First record of the genus Tshernyshev, 2009 (Coleoptera, Malachiidae) from China.

Biodivers Data J

December 2024

The Key Laboratory of Zoological Systematics and Application, School of Life Science, Institute of Life Science and Green Development, Hebei University, 071002, Baoding, China The Key Laboratory of Zoological Systematics and Application, School of Life Science, Institute of Life Science and Green De

Background: Tshernyshev, 2009 is a small genus belonging to the tribe Malachiini in the family Malachiidae of the order Coleoptera, with six currently known species: (Erichson, 1840) from Central, Eastern and Southern Europe and North Africa; (Abeille de Perrin, 1885) from Central Europe to Central Asia; Ezzatpanah, 2011 from Iran; (Tshernyshev, 2000) from Uzbekistan and Kyrgyzstan; (Medvedev, 1964) from Kazakstan, Russia and Mongolia; (Medvedev, 1964) from Kazakhstan and Turkey.

New Information: In this study, Tshernyshev, 2009 is newly recorded from China upon the discovery of (Medvedev, 1964) from Xinjiang Autonomous Region. The adult morphological characters are re-described in detail with illustrations of external appearance and relevant characters.

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Galliformes and Anseriformes are two branches of the Galloanserae group, basal to other Neognathae. In contrast to Galliformes, Anseriformes have not been thoroughly researched by cytogenetic methods. This report is focused on representatives of Anseriformes and the evolution of their chromosome sets.

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A new soil-dwelling mite species, Zerconopsis sibiricus sp. nov., is described from Russia based on the females, males, and nymphs.

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Article Synopsis
  • Sibling species within bloodsucking black flies complicate the assessment of biodiversity and the species' roles in spreading pathogens, prompting research on molecular genetic structures of Simulium reptans in Russia and Northern Kazakhstan.
  • Genetic analysis revealed distinct mitochondrial DNA variants, identifying two forms: S. reptans A in Northern Europe and S. reptans B in Siberia and Northern Kazakhstan, along with three branches of S. reptans B based on geographic distribution.
  • The study suggests the need for further research in mountainous regions of Eurasia to better understand the ecological adaptations and distribution of these black fly forms.
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For the first time under laboratory conditions, the virulence of a unique cypovirus strain, DsCPV-1, which has broad host specificity, was tested on nontarget aquatic organisms (natural species: Gammarus lacustris, Anopheles messeae, Coenagrion lunulatum, Cloeon robusta, Chironomus sp., Ilyocoris cimicoides, and Plea minutissima; laboratory species: Aedes aegypti and Daphnia magna), a terrestrial pollinator species (Apis mellifera), and an entomophage (Podisus maculiventris). The probability of this virus's accumulation in the bodies of invertebrates and of its transmission along a trophic chain was evaluated by two approaches: bioassays and a molecular diagnostic analysis.

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The taxonomic position of the hymenolepidid cestode genera Paraoligorchis Wason et Johnson, 1977 and Sudarikovina Spassky, 1951 from gerbils and ground squirrels from Africa, Southwest Asia and South Asia is clarified based on re-examination of type and voucher materials. The generic diagnosis of Sudarikovina is amended. The main corrections for diagnostic characters at the generic level include: irregularly-spaced transverse anastomoses of ventral osmoregulatory canals; presence of both specimens with dextral genital pores and specimens with sinistral genital pores; vagina clearly covered externally by a dense layer of intensely-stained cells; young uterus reticulate and fully-developed uterus with a labyrinthine structure.

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Background: Invasion of microorganisms into the gut of insects triggers a cascade of immune reactions accompanied by increased synthesis of effectors (such as antimicrobial peptides, cytokines, and amino acids), leading to changes in the physiological state of the host. We hypothesized that even an inactivated bacterium can induce an immune response in an insect. The aim of this study was to compare the roles of reactive oxygen species (ROS) formation and of the response of detoxification and antioxidant systems in a Colorado potato beetle (CPB) larval model in the first hours after invasion by either an inactivated or live bacterium.

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Previously, we described the mechanisms of development of autoimmune encephalomyelitis (EAE) in 3-month-old C57BL/6, Th, and 2D2 mice. The faster and more profound spontaneous development of EAE with the achievement of deeper pathology occurs in hybrid 2D2/Th mice. Here, the cellular and immunological analysis of EAE development in 2D2/Th mice was carried out.

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in rodents and shrews in Armenia, Transcaucasia.

Int J Parasitol Parasites Wildl

December 2024

Laboratory of Molecular Parasitology, Scientific Center of Zoology and Hydroecology, NAS RA, 7 P. Sevak st., Yerevan, 0014, Armenia.

Article Synopsis
  • Infections in small mammals are significant as they can transmit pathogens to felids, which release tough oocysts into the environment via their feces.
  • The authors investigated shrews and rodents in Armenia, marking the first attempt to find such infections in these species there.
  • They successfully detected DNA in 10.9% of trapped small mammals, with 15 out of 137 samples showing evidence of infection from six different locations.
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