scholarly journals HELMINTHS OF WOLF IN THE VORONEZH RESERVE AND ADJACENT TERRITORIES

2019 ◽  
pp. 499-504
Author(s):  
Romashov ◽  
Breslavtsev ◽  
Romashova
Keyword(s):  
Nematode Species ◽  
Toxocara Canis ◽  
Black Soil ◽  
Trophic Relationships ◽  
Taenia Hydatigena ◽  
Black Soil Region ◽  
Calodium Hepaticum ◽  
Taxonomic Groups ◽  
Trichinella Nativa

The wolf is the largest predatory mammal in the Central Black Soil region of Russia. The close trophic relationships of the wolf with wild ungulates and other animals play an important role in the formation of the modern predator helminth fauna. Helminthological materials from the wolf have been collected in the Voronezh Reserve and in adjacent natural areas for a long-term period (1981–2018). The modern fauna of the helminths of the wolf of the Voronezh Reserve contains 16 species. The main taxonomic groups of helminths (trematodes, cestodes, and nematodes) in the wolf are represented unevenly. The maximum number of helminth species is registered among nematodes – 12 species (Aonchothe caputorii, Eucoleus aerophilus, E. boehmi, Pearsonema plica, Calodium hepaticum, Trichinella nativa, Toxocara canis, Toxaskaris leonina, Uncinaria stenocephala, Crenosoma vulpis, Molineus patens, Dirofilaria repens). We have identified three species of cestodes (Dypilidium caninum, Taenia hydatigena, T. krabbei) and one species of trematodes (Alaria alata). The highest infection rates were registered for A. alata: the extensiveness of invasion (EI) is 92.3%, the intensity of invasion is 149.7 specimens, an abundance index is 138.2 specimens. High rates of wolf invasion by certain nematode species were revealed: E. boehmi (69.2%); P. plica (46.2%); E. aerophilus (38.5%); C. hepaticum (15.4%) and nematode T. nativa (27.9%). More than ten species of helminths of the wolf are of significant epidemiological and epizootological importance for this area.

scholarly journals CANIDAE CESTODES IN THE NATURAL TERRITORIES OF THE CENTRAL BLACK SOIL

2020 ◽  
pp. 333-336
Author(s):  
B. Romashov ◽  
P. Nikulin ◽  
N. Romashova
Keyword(s):  
Black Soil ◽  
Domestic Dog ◽  
Raccoon Dog ◽  
Cestode Species ◽  
Natural Conditions ◽  
Taenia Hydatigena ◽  
Leading Role ◽  
Black Soil Region ◽  
Domestic Carnivores ◽  
Index Of Abundance

Predators (Carnivora) have a large and diverse fauna of helminths, including higher cestodes (Cyclophyllidea). Among predators, the most representative group are canids (Canidae), which are of great importance in the circulation of these cestodes. Under the natural conditions of the Central Black Soil Region (Voronezh Reserve and adjacent territories), studies have been carried out to study the fauna and ecology of canine cestodes. According to the results of these studies, 10 species of higher cestodes were recorded in wild and domestic carnivores: Taenia hydatigena, T. pisiformis, T. crassiceps, T. krabbei, Hydatigera taeniaformis, Tetratirotaenia polyacantha, Mesocestoides lineatus, Dypilidium caninum, Echinococcus granulosus, E. multilocularis. The maximum number of cestode species was found in the fox – 9 species. Significantly less in other species of predators: in the wolf – 3 species, in the raccoon dog – 2 species, domestic dog – 2 species. The fox plays a leading role in the formation of the fauna of canine cestodes. Taenia (T. hydatigena and T. crassiceps) dominate in the composition of the cestodes fauna, they have the prevalence of infection and index of abundance, as well as M. lineatus. The fox has an actual zoonotic species E. multilocularis.

scholarly journals Long-Term Analysis of the Variability of Agronomic Characters in the VIR Oat Germplasm Collection in Central Black Soil Region of Russia

Agronomy ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 423
Author(s):  
Igor G. Loskutov ◽  
Liubov Yu. Novikova ◽  
Galina V. Belskaya ◽  
Elena V. Blinova
Keyword(s):  
Crop Production ◽  
Plant Genetic Resources ◽  
Germplasm Collection ◽  
Growing Season ◽  
Black Soil ◽  
Adaptation Measures ◽  
Mean Values ◽  
Yield Increase ◽  
Black Soil Region

Climate change has become a significant factor in crop production in the 21st century for many countries. To turn losses into profit, adaptation measures are needed, which are based on the analysis and forecast of economically valuable characteristics of crops. The field trial data were analyzed for 764 oat accessions from the global germplasm collection by the N.I. Vavilov All-Russian Institute of Plant Genetic Resources (VIR) in 2001–2019 and the cultivar ‘Gorizont’ in 1990–2019 in Yekaterinino Experiment Station of VIR (Tambov Province, Russia, 52°59′ N, 40°50′ E). A progressive shortening of the growing season and a yield increase were observed during the study both in the mean values for the tested accessions and in the cv. ‘Gorizont’. Grain yield variability of cv. ‘Gorizont’ across the years was also associated with 1000 grain weight variations. The models predict a further reduction in the growing season by 2.4 days/10 years, mainly caused by an increase in temperatures above 15 °C, and an increase in yield by 47.6 g/m2/10 years, mainly caused by an increase in the temperature in May. ANOVA demonstrated that the highest yields in Tambov Province were produced by accessions from Ulyanovsk Province, Ukraine, Moscow Province, Norway, Germany, and Poland.

Response of soil nematode community structure and diversity to long-term land use in the black soil region in China

2012 ◽  
Vol 27 (4) ◽  
pp. 701-714 ◽  
Author(s):  
Feng-Juan Pan ◽  
Yan-Li Xu ◽  
Neil B. McLaughlin ◽  
Allen G. Xue ◽  
Qing Yu ◽  
...  
Keyword(s):  
Land Use ◽  
Community Structure ◽  
Black Soil ◽  
Nematode Community ◽  
Soil Nematode ◽  
Black Soil Region ◽  
Soil Nematode Community

Intestinal helminth infections in the golden jackal (Canis aureus L.) from Vojvodina: Hotspot area of multilocular echinococcosis in Serbia

2021 ◽  
Author(s):  
Milan Miljević ◽  
Dušan Lalošević ◽  
Verica Simin ◽  
Jelena Blagojević ◽  
Borislav Čabrilo ◽  
...  
Keyword(s):  
Echinococcus Multilocularis ◽  
Nematode Species ◽  
Toxocara Canis ◽  
Intestinal Helminth ◽  
Golden Jackal ◽  
Intestinal Helminths ◽  
Risk Area ◽  
Taenia Hydatigena ◽  
High Risk Area ◽  
Total Prevalence

Abstract In the present study, 64 golden jackals were examined for intestinal helminths in three regions of Vojvodina, Serbia. Among the examined jackals 57.8% were infected with at least one parasite species. Using the intestinal scraping technique (SCT), eight species of intestinal helminths were found: Alaria alata (7.8%), Toxascaris leonina (9.4%), Toxocara canis (4.7%), Uncinaria stenocephala (20.3%), Echinococcus multilocularis (14.1%), Mesocestoides sp. (42.2%), Taenia pisiformis, and Taenia hydatigena (the overall prevalence of Taenia infection was 6.3%). To the best of our knowledge, this is the first report of T. leonina in jackals from Serbia. In comparison with the SCT results, coprological tests were less sensitive and specific for parasite identification, as only two nematode species (T. leonina and T. canis) as well as ancylostomatid and taeniid eggs were identified. The total prevalence of intestinal helminths was higher in males (71.9% males, 45% females), but the difference was not statistically significant (χ 2 = 3.76; P = 0.052). Co-infection with two species of intestinal helminths was found in 35% of the examined golden jackal individuals, three-species co-infection was demonstrated in 21.6%, whereas four-species co-infection was detected in 2.7% of the golden jackals examined. Echinococcus multilocularis has previously been recorded in jackals and foxes in Serbia, but only in Vojvodina. Our results corroborate the findings of previous studies, and indicate that the Vojvodina Province, more specifically the Srem region, is probably a high-risk area for E. multilocularis transmission to humans.

Effects of soil erosion on long-term soil productivity in the black soil region of northeastern China

CATENA ◽  
2011 ◽  
Vol 87 (2) ◽  
pp. 268-275 ◽  
Author(s):  
Xingwu Duan ◽  
Yun Xie ◽  
Tinghai Ou ◽  
Hongmei Lu
Keyword(s):  
Soil Erosion ◽  
Black Soil ◽  
Northeastern China ◽  
Soil Productivity ◽  
Black Soil Region

Characteristic of the zimoseptoria tritici population by virulence in the of the Central Black Soil region of Russia

2020 ◽  
Author(s):  
J.V. Zeleneva J.V. ◽  
◽  
V.P. Sudnikova V.P.
Keyword(s):  
Black Soil ◽  
Black Soil Region ◽  
Intraspecific Structure ◽  
Wheat Lines ◽  
Significant Polymorphism

Based on the analysis of the intraspecific structure of the fungus Zimoseptoria. tritici, it was found that this species has significant polymorphism. Using monogenic wheat lines (Oasis (Stb1), Veranopolis (Stb2), Israel (Stb3), Tadinia (Stb4), CS / Synthetic (Stb5), Estanzuela Federal (Stb7)), the population of Z. tritici in the Central Black Earth region was tested. High heterogeneity of monosporous isolates of Z. tritici by virulence was revealed.

scholarly journals Long-Term Monitoring Reveals Differential Responses of Mussel and Host Fish Communities in a Biodiversity Hotspot

Diversity ◽  
2021 ◽  
Vol 13 (3) ◽  
pp. 122
Author(s):  
Irene Sanchez Gonzalez ◽  
Garrett W. Hopper ◽  
Jamie Bucholz ◽  
Carla L. Atkinson
Keyword(s):  
Invasive Species ◽  
Life History ◽  
Biodiversity Hotspot ◽  
Biodiversity Hotspots ◽  
Host Fish ◽  
Long Term Monitoring ◽  
Differential Responses ◽  
Taxonomic Groups ◽  
Term Monitoring

Biodiversity hotspots can serve as protected areas that aid in species conservation. Long-term monitoring of multiple taxonomic groups within biodiversity hotspots can offer insight into factors influencing their dynamics. Mussels (Bivalvia: Unionidae) and fish are highly diverse and imperiled groups of organisms with contrasting life histories that should influence their response to ecological factors associated with local and global change. Here we use historical and contemporary fish and mussel survey data to assess fish and mussel community changes over a 33 year period (1986–2019) and relationships between mussel abundance and their host fish abundance in Bogue Chitto Creek, a tributary of the Alabama River and a biodiversity hotspot. Mussel abundance declined by ~80% and community composition shifted, with eight species previously recorded not found in 2019, and a single individual of the endangered Pleurobema decisum. Fish abundances increased and life history strategies in the community appeared stable and there was no apparent relationship between mussel declines and abundance of host fish. Temporal variation in the proportion of life history traits composing mussel assemblages was also indicative of the disturbances specifically affecting the mussel community. However, changes and declines in mussel assemblages in Bogue Chitto Creek cannot be firmly attributed to any specific factor or events because of gaps in historical environmental and biological data. We believe that mobility differences contributed to differential responses of fish and mussel communities to stressors including habitat degradation, recent droughts and invasive species. Overall, our work indicates that monitoring biodiversity hotspots using hydrological measurements, standardized survey methods and monitoring invasive species abundance would better identify the effects of multiple and interactive stressors that impact disparate taxonomic groups in freshwater ecosystems.

Responses of soil aggregation and aggregate-associated carbon and nitrogen in black soil to different long-term fertilization regimes

2021 ◽  
Vol 213 ◽  
pp. 105157
Author(s):  
Jie Zhang ◽  
Dan Wei ◽  
Baoku Zhou ◽  
Lijuan Zhang ◽  
Xiaoyu Hao ◽  
...  
Keyword(s):  
Black Soil ◽  
Soil Aggregation ◽  
Carbon And Nitrogen
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