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1
Malacocenoses of isolated middfield copses
100%
Baucz-Malij B.
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nr 1-4
2
Content available Occurrence of Cepaea vindobonensis in Poland - new data
100%
Mierzwa-Szymkowiak D.
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nr 1
3
Content available Reproduction of Balea (Pseudalinda) fallax (Rossmassler, 1836) (Gastropoda: Pulmonata: Clausiliidae) kept under laboratory conditions
100%
Sulikowska-Drozd A. , Maltz T. K.
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nr 1
EN
Balea fallax (Rossm.) collected from the Roztocze Upland (SE. Poland) was kept in the laboratory for four years. Observations were conducted between March and October when the snails were kept at room temperature (18-25°C); in winter they were stored at 3°C. The egg-laying period started in late March and lasted till October, with maxima in spring and early autumn. The snails laid oval, gelatinous eggs with separatecalcium carbonate crystals in the external envelope (average egg size 1.96 × 1.73 mm). The eggs were deposited in batches (up to 14 eggs at a time) or singly. The number of batches per snail per year ranged between 1and 4. Snails isolated before maturation laid defective eggs which failed to develop, which suggest that the speciesis incapable of uniparental reproduction or at least the ability is very limited. The reproduction rate decreased during consecutive years, probably as a result of the aging or the shortage of allosperm in isolated individuals.Compared to batches of typically oviparous clausiliids, eggs of B. fallax hatched slightly earlier (interval between oviposition and hatching lasted 8-10 days at room temperature). It is likely that the adults retained developing eggs in the uterus for a short time. The juveniles needed at least 6 months to attain the ultimates hell size.
4
Content available An anomaly of the reproductive organs in Trochulus hispidus (Linnaeus, 1758) (Gastropoda: Pulmonata: Hygromiidae)
100%
Prockow M. , Kuznik-Kowalska E.
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nr 1
EN
A specimen of Trochulus hispidus from Buchenbach, Germany, had its male and female parts of thereproductive system completely separated. The female part lacked auxiliary organs. The male part opened into the genital atrium, but the vas deferens was blind-ended in a way precluding sperm transfer.
5
Content available New records of Pupilla pratensis (Clessin, 1871) in Western Poland
100%
Ksiazkiewicz Z. , Goldyn B.
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nr 4
EN
Two localities of Pupilla pratensis were found in the environs of Gubin and Stęszew, W. Poland. Only one recent record of the species, earlier regarded as an ecotype of the widespread P. muscorum, was known from Poland. Consequently, the distribution and conservation status of the species are not well known. Our data indicate that P. pratensis is rare and has specific habitat requirements. In our study area it was found in only two out of 71 examined localities of a very similar habitat type and sampled on the same occasions. The two localities are wet meadows covered by sedges (mostly Carex acutiforis) growing on a calcareous peat substratum of lacustrine origin; the species is accompanied by two rare and legally protected vertiginids: Vertigo angustior and V. moulinsiana.
6
Content available Forest malacocenoses of the Bieszczady National Park (preliminary results)
100%
Sulikowska A.
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nr 4
7
Content available Effects of temperature and photoperiod on glucose, glycerol and glycogen concentrations in Helix pomatia Linnaeus, 1758 in spring and autumn
80%
Nowakowska A. , Caputa M. , Rogalska J.
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tom 19
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nr 3
EN
One of the variables oscillating seasonally in Helix pomatia L., described in our previous paper, was their rudimentary cryoprotection provided by modest increases in haemolymph glucose and glycerol concentrations in autumn and early spring, respectively. Because factors governing cryoprotective responses are unknown, we decided to investigate the effects of spring and autumn acclimation of H. pomatia to different thermal and photoperiod conditions on the changes in haemolymph concentrations of glucose and glycerol and on the glycogen level in selected organs. Neither acclimation to short-day photoperiod nor low ambient temperature evoked increase in glucose and glycerol concentration in spring and autumn. Both acclimation variants decreased hepatopancreatic glycogen level. The rudimentary freeze-tolerance in H. pomatia seems to be a combined effect of cold and short-day photoperiod and might also be affected by their nutritional and reproductive status. The effect of exposure to frost-bite is also likely to be involved.
8
Content available The effect of selected agonists and antagonists of cholinergic receptors on the motor activity of epithelium of Achatina fulica
80%
Kaczorowski P.
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tom 24
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nr 1
9
Content available Anatomy and taxonomic position of Elma H. Adams, 1866: a high-spired Southeast-Asian genus of Streptaxidae (Gastropoda: Eupulmonata)
80%
Pall-Gergely B. , Hunyadi A. , Varga A. , Rowson B.
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2015
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tom 23
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nr 2
10
Content available Colonisation and adaptation in a transplant experiment of the polymorphic land snail Cepaea nemoralis at the geographic range limit
80%
Ozgo M. , Bogucki Z.
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nr 1
11
Miocene fauna of land snails in the region Cracow
80%
Stworzewicz E.
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nr 3
12
New locality of Late Pliocene land snail fauna from Przymilowice 3 in the Cracow-Wielun Upland, Poland
80%
Stworzewicz E.
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tom 37
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nr 2
13
On the mono[?]phyly and classification of the Orthurethra-Pupilloidea [Gastropoda: Pulmonata: Stylommatophora]
70%
Pokryszko B. M.
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tom 05
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nr 4
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