Growth rate of Chilostoma faustinum (Rossmässler, 1835) (Gastropoda: Pulmonata: Helicidae) under natural conditions

Marzec, Magdalena

doi:10.12657/folmal.021.028

Cited by 4 publications

(6 citation statements)

References 28 publications

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“…In four of five taxa, he documented negative correlations between shell size and elevation, which is undoubtedly influenced by the change in climatic conditions with altitude. Smaller shells were also reported in Faustina faustina from higher latitudes of Poland (Marzec 2013). Observations of land snails across larger scale (northwestern Europe, eastern North America and New Zealand), however, showed only weak altitudinal variation in community body sizes which is probably obscured by other strong local environmental gradients such as precipita-tion (Nekola et al 2013).…”

Section: Discussionmentioning

confidence: 87%

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Shell morphology, growth pattern and population dynamics of the land snail Xerolenta obvia (Menke, 1828) in two areas of different climatic conditions within a temperate climate region

Marzec¹,

Kuźnik-Kowalska²,

Proćków³

2020

Acta Zool Acad Sci H

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To determine the relative role of climatic variables (temperature and precipitation) on land snail Xerolenta obvia populations, field surveys were conducted in Poland at two sites (SW and NE) with striking differences in climatic regime during two growing seasons. In a temperate climate of Central Europe X. obvia is an annual species with the majority of snails hatching in autumn. They overwinter as juveniles, continue their growth in spring and summer, and reproduce in the following autumn. Due to the comparatively milder climate, the SW population is more plastic, some individuals can live and reproduce longer. The two variants of the growth model are presented. We found that the length of growing season and temperature were additional factors determining differences in snails' growth and population dynamics between the sites. The growth rate of X. obvia is negatively correlated with the initial size of their shells and varies among sites. These two geographically distant populations differ in terms of their shell size and morphology. The SW population is characterised by larger, dark banded shells compared to the NE one, which is dominated by snails with smaller, white shells. A pattern of decreasing body size in areas with shorter growing season may explain differences in the shell size of X. obvia. Larger shells in regions with warmer and drier environment perhaps constitute responses to selection by environmental factors.

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Section: Discussionmentioning

confidence: 87%

“…It would be of interest to obtain longer time series from particular populations and to study many over a range of climatic regimes. Variation in weather certainly influences growth and longevity in other snail species (Sulikowska-Drozd 2011, Proćków et al 2012, 2013.…”

Section: Discussionmentioning

confidence: 99%

Shell morphology, growth pattern and population dynamics of the land snail Xerolenta obvia (Menke, 1828) in two areas of different climatic conditions within a temperate climate region

Marzec¹,

Kuźnik-Kowalska²,

Proćków³

2020

Acta Zool Acad Sci H

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“…25 Snail live weight is the most frequent trait for measuring growth, 1,16,[26][27][28] although the diameter of the shell is also used. 24,29 Both traits are easy to obtain, direct and fast, and this process can be easily automated. 8 Moreover, it has been shown that there is a very strong correlation between live weight and shell diameter or length, as well as a high correlation among the three shell-size measurements.…”

Section: Measurements and Statistical Analysesmentioning

confidence: 99%

“…1,31 In contrast, shell dimensions present low variability, have large repeatability, adjust to a normal distribution and facilitate the construction of growth models. 17,24,29,[32][33][34] In addition, a high correlation between shell growth and sexual maturity has been investigated, 28,35 with a relationship between shell growth and peristome thickness reported. A snail is considered to be an adult when the shell peristome (shell edge) is reflected, that is, when shell growth is completed.…”

Section: Measurements and Statistical Analysesmentioning

confidence: 99%

Integrated rearing system proposal for Cantareus aspersus in experimental orchards: Growth models

et al. 2021

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An integrated rearing system for Cantareus aspersus under environmental conditions in an experimental orchard is proposed. In this study, the natural behaviour, circadian rhythms and suitable rearing conditions of the edible snail were optimised to produce homogeneous growth and low variability. The growth was standardised, and growth pattern fit was assessed with various models. One thousand fry were cultured in the orchard, and a random sample of 100 snails were measured weekly for 23 weeks. The rearing system had the following characteristics: snails and earthworms were included in the experimental rearing orchard; a homogeneous group of juvenile snails of the same age and size and high rearing density (500 snails/m2) was used; snails were fed with layers mash ad libitum; and mixed and fringes vegetation was planted in the orchard. A commercial size of 60% of snails was achieved in 21 weeks and 95% in 23 weeks. The different models showed a good fit, and the quadratic model obtained the best fit. This experimental snail orchard proposal can be extended to other areas, although it must be corrected according to different environmental conditions and fit to other species of interest. This experimental model could constitute a viable alternative to traditional models of animal experimentation with mammals, and given its high adaptability, it could be applied in different fields of science.

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“…In Europe, these were Iberian, Apennine, Balkan-Peloponnese, and Ponto-Caspian refuges. In these areas, species were exposed The knowledge about F. faustina is extremely limited and so far only little information about its biology or ecology is available (Marzec 2013). For many years, its systematic position was unclear.…”

Section: Introductionmentioning

confidence: 99%

Phylogeography and potential glacial refugia of terrestrial gastropod Faustina faustina (Rossmässler, 1835) (Gastropoda: Eupulmonata: Helicidae) inferred from molecular data and species distribution models

et al. 2020

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Faustina faustina is a conchologically highly diverse forest gastropod with several morphological forms. It is a Carpathian species, but it also occurs in northern isolated localities, where it was probably introduced. We performed the first phylogeographic analysis of 22 populations, based on three molecular markers: COI, ITS-2, and 28S rRNA. Genetic data were complemented by paleo-distribution models of spatial occupancy during the Last Glacial Maximum to strengthen inferences of refugial areas. We discovered high genetic variability of COI sequences with p-distances between haplotypes ranged from 0.2 to 18.1% (6.3–16.6% between clades). For nuclear markers, a haplotype distribution pattern was revealed. Species distribution models indicated a few potential refugia in the Carpathians, with the most climatically stable and largest areas in the Southern Carpathians. In some climate scenarios, putative microrefugia were also predicted in the Western and Eastern Carpathians, and in the Apuseni Mts. Our results suggest the glacial in situ survival of F. faustina and its Holocene expansion in the Sudetes. Although our genetic data as well as shell phenotypes showed considerable variation within and between studied populations, the molecular species delimitation approaches still imply only one single species. Our study contributes to the understanding of the impact of processes on shaping contemporary population genetic structure and diversity in low-dispersal, forest species.

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Growth rate of Chilostoma faustinum (Rossmässler, 1835) (Gastropoda: Pulmonata: Helicidae) under natural conditions

Cited by 4 publications

References 28 publications

Shell morphology, growth pattern and population dynamics of the land snail Xerolenta obvia (Menke, 1828) in two areas of different climatic conditions within a temperate climate region

Shell morphology, growth pattern and population dynamics of the land snail Xerolenta obvia (Menke, 1828) in two areas of different climatic conditions within a temperate climate region

Integrated rearing system proposal for Cantareus aspersus in experimental orchards: Growth models

Phylogeography and potential glacial refugia of terrestrial gastropod Faustina faustina (Rossmässler, 1835) (Gastropoda: Eupulmonata: Helicidae) inferred from molecular data and species distribution models

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