Rare species of micromolluscs in the city of Poznań (W. Poland) with some notes on wintering of Vertigo moulinsiana (Dupuy, 1849)

Książkiewicz‐Parulska, Zofia; Pawlak, Katarzyna

doi:10.12657/folmal.024.007

Cited by 10 publications

(5 citation statements)

References 4 publications

(3 reference statements)

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“…Calcium content in soils is a strong regulator of species composition, total community abundance and the abundance of species on a fine scale [52]. Land snail species tend to cluster in the most favourable habitats, rather than replacing one species with another [65][66][67][68].…”

Section: Discussionmentioning

confidence: 99%

Spatial distribution of micromollusks under the impact of recreation

Кунах

Umerova

Degtyarenko

2022

IOP Conf. Ser.: Earth Environ. Sci.

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Anthropogenic impacts lead to a decrease in the abundance and diversity of communities of living organisms. The rate of recovery of populations is inversely proportional to size: the smaller the size, the greater the potential for population recovery after negative impact. Therefore, under conditions of extremely high levels of anthropogenic impact, small-sized animals are a reliable source of ecosystem state. The aim of the work is to: 1) to evaluate rates of the micromollusc Vallonia pulchella (Müller, 1774) abundance in ecosystems that are subject to extremely high levels of recreational pressure; 2) to identify factors that influence the spatial patterns of soil micromollusks; and 3) to investigate the possibility of using micromollusks for the purposes of bioindication of recreational pressure. The soil sampling was performed on a regular grid with recording of local coordinates. The micromollusks were extracted from the soil samples by hand sorting. Physical properties of soil sensitive to recreational load were also measured. Micromolluscs were found to exhibit a non-linear response to recreational impact. The maximum abundance of animals is observed at a certain distance from recreational trails. This distance is specific for different species of micromollusks. Micromollusks have high population abundance even under conditions of high recreational load. The regular spatial patterns of these animals are caused by changes in the soil habitat, which are induced by recreational load. This circumstance allows to consider micromollusks as a reliable indicator of the level of recreational load.

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Section: Discussionmentioning

confidence: 99%

Spatial distribution of micromollusks under the impact of recreation

Кунах

Umerova

Degtyarenko

2022

IOP Conf. Ser.: Earth Environ. Sci.

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“…In addition, microsubfossils Vallonia enniensis and Vertigo moulinsiana, provide information for the swamp's substrate which is limestone, there were reeds and the swamp bordered with rivers banks (Beran 2006;Jankowiak and Bernard. 2013;Ksiazkiewicz-Parulska and Pawlak. 2016;Ksiazkiewicz-Parulska and Pawlak 2017).…”

Section: Sedimentology and Micropaleontologymentioning

confidence: 99%

The krathis lake, one century of evolution.

Groumpou¹,

Avramidis²,

Iliopoulos³

et al. 2021

EJG

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A riverbed swamp in the Krathis River, N. Peloponnese, is studied and analyzed geomorphologicaly. Our analysis is also based on sedimentological, geochemical, palaeontological and radiometric dating data which enabled the investigation of the possible relationship between the studied swamp and the 1913 Tsivlos landslide. Sedimentological analysis showed that the current sedimentation is dominated by fine grain material and occasional coarse-grained beds. Micropalaeontological analysis indicated that the deeper layers of the core are barren, while the upper ones contain fresh water ostracods suggesting hydrodynamically a progressively more stable environment. In accordance, radiocarbon C14 and 137Cs dating showed a progressively decreasing sedimentation rate over the last fifty years. The results of this study show that the Tsivlos landslide is not the only cause for the formation of the modern swamp. Tectonic movements in the area seem to play a decisive role causing uplift and subsidence in the area near an active fault.

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“…The selection of favourable microhabitats is one of the most effective mechanisms to avoid the extreme environmental conditions (Cowie, 2009;Machin, 2009;Scheffers et al, 2014). Land snail species tend to aggregate in the most favourable locations, rather than replacing one species with another (Boycott, 1934;Hylander et al, 2005;Horsák & Cernohorsky, 2008;Książkiewicz-Parulska & Pawlak, 2016). To explain such patterns, there were proposed the hypotheses of "nested habitats" and "nested habitat quality".…”

Section: Introductionmentioning

confidence: 99%

Impact of recreational transformation of soil physical properties on micromolluscs in an urban park

et al. 2021

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The paper assesses the effect of transformation of soil physical properties on the abundance of micromolluscs in the conditions of an urban park. The studies were carried out in Novooleksandrivskiy Park (Melitopol, Ukraine). An experimental polygon was represented by 7 transects with 18 sampling points in each. The interval between the points in the transect, as well as the interval between transects, was 3 meters. The total area of the polygon was 1,134 m2. The tree species growing within the polygon were Quercus robur, Sophora japonica, and Acer campestre. Shrubs were represented by Ulmus laevis, Tilia cordata, Celtis occidentalis, and Morus nigra. The locations of the trees and shrubs were mapped. The crowns of tree and shrub plants formed a dense canopy and a shady light regime. The grass cover was practically absent. The soil mechanical resistance, soil aggregate-size distribution, electrical conductivity of soil, soil moisture and bulk density were measured. We recorded 618 individuals of Vallonia pulchella, 120 individuals of Cochlicopa lubrica, and 58 individuals of Acanthinula aculeata within the surveyed polygon. We extracted three principal components, which could explain 60.9% of the variation in the feature space of the soil properties. The principal component 1 explained 42.0% of the variation of the feature space and depended on the soil penetration resistance throughout the whole profile, aggregate composition, density, electric conductivity and moisture content of soil. This component reflected a tendency for soil penetration resistance and soil density to increase near recreational trails. The principal component 1 was used to indicate the gradient of recreational transformation of the soil. The principal component 2 was able to explain 10.6% of the variation in the feature space. It negatively correlated with the distance from the recreational trail, soil penetration resistance at the depth of 35 cm or more, soil electrical conductivity, and the proportion of aggregates greater than 3 mm in size. This component positively correlated with soil penetration resistance at 0–5 cm depth and the proportion of aggregates less than 0.5 mm in size. This component can be interpreted as a "halo" from the recreational trail, or a gradient of indirect soil transformations adjacent to the zone of intense recreational load. The principal component 3 was able to explain 8.3% of the variation in the feature space. It positively correlated with soil penetration resistance at the depth of 20–40 cm, the proportion of 0.5–7.0 mm aggregates, and soil moisture. It negatively correlated with the proportion of aggregates larger than 7 mm and smaller than 0.25 mm. This component indicated a variation in soil properties that was induced by causes independent of recreational exposure. The extracted gradients of soil properties significantly influenced the abundance of micromollusc populations. The abundance of all species decreased after increase in recreational load. Micromollusc species responded to direct recreational exposure as plateau (C. lubrica) and asymmetric unimodal responses (V. pulchella and A. aculeata).

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Rare species of micromolluscs in the city of Poznań (W. Poland) with some notes on wintering of Vertigo moulinsiana (Dupuy, 1849)

Cited by 10 publications

References 4 publications

Spatial distribution of micromollusks under the impact of recreation

Spatial distribution of micromollusks under the impact of recreation

The krathis lake, one century of evolution.

Impact of recreational transformation of soil physical properties on micromolluscs in an urban park

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