Analysis of the spatial distribution of the ecological niche of the land snail Brephulopsis cylindrica (Stylommatophora, Enidae) in technosols

Жуков, О. В.; Kovalenko, D. V.; Крамаренко, С. С.; Крамаренко, А. С.

doi:10.15421/011910

Cited by 12 publications

(15 citation statements)

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“…The spatial structure of xerophilous nonindigenous gastropods is similar to that observed in other parts of their ranges [Kramarenko et al, 2014;Zhukov et al, 2019]. Aggregated spatial distribution is one of the adaptations to the habitat of steppe biotopes under arid conditions.…”

Section: Discussionmentioning

confidence: 55%

“…There are several reasons for this type of spatial distribution. In populations of B. cylindrica and Vallonia pulchella (Müller, 1774), the heterogeneity in the composition of both soils and vegetation affect greatly the spatial structure of gastropod population [Kunakh et al, 2018;Zhukov et al, 2019]. The authors hypothesize that such site selectivity by snails may also reflect adaptation to arid climate.…”

Section: Spatial Population Structurementioning

confidence: 99%

“…Alien populations of B. cylindrica, inhabiting the Dnieper Upland, are characterized by the same features of demographic and spatial structure comparing to those in native range [Kramarenko et al, 2014]. In addition, the spatial organization of this subpopulation of B. cylindrica depends greatly on the composition and properties of soil [Zhukov et al, 2019]. Populations of X. derbentina are numerous outside the natural range and are characterized by a plasticity of the life cycle [Kiss et al, 2005].…”

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confidence: 99%

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Demographic and spatial structure at the stage of expansion in thepopulations of some alien land snails in Belgorod city (CentralRussian Upland)

2022

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Studying of the demographic characteristics of populations of alien species at the stage of expansion makes it possible to assess their invasive potential. Field studies of alien terrestrial gastropods Xeropicta derbentina (Gastropoda,Stylommatophora, Hygromiidae), Brephulopsis cylindrica (Gastropoda, Stylommatophora, Enidae) and Harmozica ravergiensis (Gastropoda, Stylommatophora, Hygromiidae) have been carried out in Belgorod city, the southern part of the Central Russian Upland (Russia). All studied species are native to the Black Sea region and the Caucasus; in the southern part of the Central Russian Upland, they have been registered over the past ten years. The population density, demographic structure, and spatial structure have been analyzed for three years of observations (2017, 2019, 2020). During this period, the changes in the population density have been noted for all studied species. The most pronounced changes have been observed in X. derbentina, whose population density has significantly decreased, and the spatial structure has changed from clustered type to random distribution. In addition, the age structure of X. derbentina population had a pronounced change at the beginning of the snail activity season of 2020. The expansion of the other two invaders, B. cylindrica and H. ravergiensis, is proved as more successful. At the same time, H. ravergiensis is distributed throughout the city. This species has stable population density and random type of spatial population structure on most sites. B. cylindrica has the highest population density: in 2020, it has reached 406 ind./m2 on average, with the maximum of 1215 ind./m2.Meantime, the species keeps the clustered spatial structure, which is explained by both high population density and adaptation to the arid conditions of its natural range.

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Section: Discussionmentioning

confidence: 55%

Section: Spatial Population Structurementioning

confidence: 99%

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confidence: 99%

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Demographic and spatial structure at the stage of expansion in thepopulations of some alien land snails in Belgorod city (CentralRussian Upland)

2022

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“…The functional significance of the variability found in the shell shape variation in the Nassariid Buccinanops globulosus (Kiener, 1834) (Gastropoda) has been discussed in terms of the flexibility of developmental programmes for morphology as well as the evolution of phenotypic plasticity (Avaca et al, 2013). Land snails are an ideal model object for studying the processes of genetic intrapopulation fine-scale spatial differentiation and subdivision (Zhukov et al, 2019). Their population size are always large, but in space individuals are often distributed overcrowded, the migratory/invasive capacity is low, but passive dispersal (incl.…”

Section: Introductionmentioning

confidence: 99%

Intrapopulation variation in shell morphological traits and banding polymorphism of the land snail Cepaea vindobonensis (Gastropoda; Pulmonata; Helicidae)

Крамаренко¹,

Ignatenko²,

Yulevich³

2020

Ukr J Ecol

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The main goal of this paper was to analyze intrapopulation variation of both morphological traits and shell banding polymorphism using the example of a continuous population (a metapopulation) of the land snail Cepaea vindobonensis (Férussac, 1821). A total of 14 samples of the land snail C. vindobonensis from a population located in the “Dubki” Park (Ukraine, Mykolayiv) were collected in May-July 2007. The land snail collection sites are divided into three areas by buildings and asphalt roads, indicated by the Latin letters A, B and C. The major diameter of shell (MJD), the minor diameter of shell (MID) and the shell height (SH) were measured with a digital calliper to the nearest 0.05 mm. Two shell shape indices (SF1 and SF2) were also computed. A high level of the intrapopulation variation of the land snail C. vindobonensis was found in our study. Significant differences between sample means were found for all shell traits and indices used (except for SF1), however, maximum difference was noted for SH and SF2 (in both cases: P ≤ 0.001). About 80% of the total variation of the variance-covariance matrix was explained by the 1st and 2nd Principal Components (PC1 and PC2). The PC1 was characterized by high positive factor loadings of MJD, MID and SH and thus can be interpreted as “shell size dimension” and the PC2 had a high correlation with SF2 and thus it can be interpreted as “shell globularity”. The PC1 and PC2 determined a high level of spatial differentiation of intrapopulation morphological variation of the land snail C. vindobonensis. Samples with small (area A) and large (areas B and C) shells were separated from each other according to the PC1. Areas B and C were characterized by individuals with flatness and globularity shells, respectively. The areas A, B and C differed significantly in the total number of morphs, average number of morphs and frequency of rare morphs (Kruskal-Wallis H-test; in all cases P ≤ 0.010). At the same time, the highest value of phenetic diversity was noted for samples collected within A and C areas. In general all phenetic diversity estimators showed a positive correlation with sample size (Spearman's correlation coefficient; in all cases P ≤ 0.05). It was found that the type of biotope did not likely affect the frequency of individual morphs with respect to the shell banding polymorphism pattern. With regard to the most common morphs two patterns of the spatial arrangement of the intrapopulation variation were found – clinal pattern was for the frequency of pallescens morph and chaotic pattern was for frequency of “12345” morph.

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“…Reclamation enhances soil quality by improving physical and chemical properties, which helps in restoration of mine soils (Shrestha & Lal, 2008;Zhukov et al, 2016c). The considerable changes of the soil bulk density, soil porosity, and soil mass water content were revealed to be changed after a long time of vegetation restoration (Cao et al, 2015;Maltsev et al, 2017;Zhukov et al, 2019). After rehabilitation period the content of water available for plants was found to be favourable in reclaimed soils but less beneficial conditions of the soil were associated with air and water permeability (Kofodziej et al, 2016;Shcherbyna et al, 2017;Zhukov & Maslikova, 2018).…”

Section: Introductionmentioning

confidence: 99%

Albedo of the soil cover as a factor of the temporal dynamics of readily available soil moisture in the technosols of the Nikopol manganese ore basin

Gritsan

Kunah

Fedushko

et al. 2019

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The simulation of moisture content in Nikopol manganese ore basin technosols was performed using the Penman-Monteith approach and evaluate the role of the dependence of soils surface albedo from the humidity in the intensity of evapotranspiration. The sod lithogenic soils on loess-like loam and pedozem were chosen as the objects of the investigation. The research was conducted during 2012-2014 years at the investigation station of the remediation within Nikopol manganese ore basin (city Pokrov, Ukraine). The evapotranspiration from the soil surface was calculated by means of Penman-Monteith equation. Root zone moisture depletion is evaluated as the difference between soil water content at field capacity (pF = 2.3) and actual soil water content. The Ks value which is a water stress factor equals 1.0 as long as soil water content is higher than readily available water. If soil water content is lower than readily available water, Ks decreases linearly from one to zero according to total available soil water consumed. The soil water balance is performed in ISAREG with a daily time. The evaluation of readily available water content was carried out based on Penman-Monteith model taking into account meteorological data, technosols water-physical properties and the dependence of soil surface albedo on soil humidity. The color of the surface of the sod-lithogenic soil on the loess-like loam varies from yellow (2.5Y 4/2) in wet condition to yellow-red (10YR 6/5) in the dry condition. Albedo of this soil depended on the humidity varies in the range 0.17-0.31. The surface color of the pedozem varies from very dark gray (10YR 3/1) in wet condition to light-gray (2.5YR 6/2) in the dry condition. Albedo of this soil depended on the humidity varies in the range 0.10-0.31. There is a linear relationship between the moisture content in the soil and albedo of the soil surface. Albedo changes along with the humidity are most significant in the sod-lithogenic soils on loess-like loams. This is confirmed by the greatest regression coefficient. Albedo changes along with the moisture content are least significant in the pedozem. The distributionі of this index for different teсhnosols are characterized by a high level of similarity of shape due to the fact that the overall climate factors are crucial in shaping the dynamics of moisture. The distributions can be most good represented as a complex mixture of normal distributions. It was found that water supplies monitoring before the start of the growing season can provide valuable information necessary for the selection of crops for cultivation in the current year. The results indicate the urgency of measures to save the winter rainfall on the fields.

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Analysis of the spatial distribution of the ecological niche of the land snail Brephulopsis cylindrica (Stylommatophora, Enidae) in technosols

Cited by 12 publications

References 42 publications

Demographic and spatial structure at the stage of expansion in thepopulations of some alien land snails in Belgorod city (CentralRussian Upland)

Demographic and spatial structure at the stage of expansion in thepopulations of some alien land snails in Belgorod city (CentralRussian Upland)

Intrapopulation variation in shell morphological traits and banding polymorphism of the land snail Cepaea vindobonensis (Gastropoda; Pulmonata; Helicidae)

Albedo of the soil cover as a factor of the temporal dynamics of readily available soil moisture in the technosols of the Nikopol manganese ore basin

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