Life Cycles of Clausiliids of Poland — Knowns and Unknowns

@inproceedings{Maltz2008LifeCO,
  title={Life Cycles of Clausiliids of Poland — Knowns and Unknowns},
  author={Tomasz K. Maltz and Anna Sulikowska-Drozd},
  year={2008}
}
Abstract. Among the 24 native clausiliids, 15 were subject to laboratory observations. Eleven of them were found to be oviparous, three — egg retainers and one — ovoviviparous. Batches, containing most often one to about a dozen of partly calcified, ellipsoidal or spherical eggs, appeared usually in the spring and autumn (in non-hibernating individuals throughout the year). Probably the main factors determining the onset of reproduction are humidity and temperature while the photoperiod has… 
Reproduction of Balea (Pseudalinda) fallax (Rossmässler, 1836) (Gastropoda: Pulmonata:Clausiliidae) kept under laboratory conditions
TLDR
Thirteen snails isolated before maturation laid defective eggs which suggest that the species is incapable of uniparental reproduction or at least the ability to reproduce is very limited.
OF BALEA ( PSEUDALINDA ) FALLAX ( ROSSMÄSSLER , 1836 ) ( GASTROPODA : PULMONATA : CLAUSILIIDAE ) KEPT UNDER LABORATORY CONDITIONS
TLDR
Snails isolated before maturation laid defective eggs which failed to develop, which suggest that the species is incapable of uniparental reproduction or at least the ability is very limited.
The reproductive strategies of clausiliid land snails from Northern Vietnam (Gastropoda: Stylommatophora)
TLDR
Under laboratory conditions, the reproduction and development of two clausiliid land snail species from northern Vietnam are scrutinized, and the distribution of viviparous reproduction among the Phaedusinae and its taxonomic importance are discussed.
Reproduction of Balea (Pseudalinda) stabilis (L. Pfeiffer, 1847) (Gastropoda: Pulmonata:Clausiliidae) kept under laboratory conditions
TLDR
Snails collected from two localities in the Polish Carpathians were kept in the laboratory for more than four years and the egg-laying period started in late March and lasted till the middle of September, with the maximum in April–May.
Life History of Alinda biplicata (Montagu, 1803) (Gastropoda: Pulmonata: Clausiliidae) Based on Five-Year Laboratory Observations
TLDR
It is confirmed the ovoviviparity of A. biplicata: the whole embrynic development takes place in eggs retained in the parent's uterus, and the snails became sexually mature 5–6 months after completeion of shell growth and formation of the closing apparatus.
OF BALEA ( PSEUDALINDA ) STABILIS ( L . PFEIFFER , 1847 ) ( GASTROPODA : PULMONATA : CLAUSILIIDAE ) KEPT UNDER LABORATORY CONDITIONS
TLDR
Snails collected from two localities in the Polish Carpathians were kept in the laboratory for more than four years and the egg-laying period started in late March and lasted till the middle of September, with the maximum in April–May.
Life cycle of Perforatella bidentata (Gmelin, 1791) (Gastropoda: Pulmonata: Helicidae)
Laboratory and field observations made it possible to ascertain the following life cycle parameters of Perforatella bidentata (Gmel.): mating includes four phases, the longest being courtship; sperm
Reproductive strategy in rock-dwelling snail Cochlodina orthostoma (Gastropoda: Pulmonata: Clausiliidae)
TLDR
It is found that eggs were laid in various developmental stages, accordingly, there were differences in egg sizes and the external incubation period varied between 6 and 15 days and C. orthostoma should be regarded as brooding species with a short and flexible period of egg retention.
Selected life history traits of Leptaxis simia (Gastropoda: Hygromiidae) established in the laboratory
TLDR
The apparently very strictly semelparous mode of reproduction, delayed sexual maturity and relatively long period of juvenile growth are discussed in relation to other species, and to the practical problems of rearing potentially endangered species in captivity.
EGG RETENTION AND OVOVIVIPARITY IN CLAUSILIIDS OF THE GENUS VESTIA P. HESSE (GASTROPODA: CLAUSILIIDAE)
TLDR
The reproductive biology of three Carpathian clausiliids of the genus Vestia was studied using two methods; there was a variation in the stage of the development of embryos among the species, and a possible relation of the reproduction mode with habitat preferences of the species is proposed.
...
1
2
3
4
5
...

References

SHOWING 1-10 OF 99 REFERENCES
LIFE CYCLE OF DISCUS RUDERATUS ( FÉRUSSAC , 1821 ) ( GASTROPODA : PULMONATA : ENDODONTIDAE )
TLDR
Life cycle parameters of three members of Discus ruderatus are discussed comparatively, and the egg cannibalism is prolonged into adult stage.
Life cycle of Discus ruderatus (Férussac, 1821) (Gastropoda: Pulmonata: Endodontidae)
TLDR
Life cycle parameters of three members of Discus ruderatus are discussed comparatively, and the egg cannibalism is prolonged into adult stage.
Reproductive biology and population dynamics of an ovoviviparous land snail, Lauria cylindracea (Pupillidae)
TLDR
It is noted that it is a minute snail, and therefore constrained to low fecundity—it can produce only few ova per unit time, and under such conditions, ovoviviparity may be advantageous in that the (few) hatchlings can immediately feed and grow, fight off fungi, cope with brief periods of desiccation and avoid drowning or flooding.
Life cycle and population dynamics of Discus perspectivus (Megerle von Muhlfeld, 1818) (Gastropoda: pulmonata: Endodontidae)
Life cycle and population dynamics of Discus perspectivus (Muhlf.) were studied in the field and in the laboratory. No courtship, copulation or uniparental reproduction could be observed. The eggs,
Life cycle and population dynamics of Helicodonta obvoluta (O. F. Müller, 1774) (Gastropoda: Pulmonata: Helicidae)
TLDR
The number, relative and absolute size of eggs, number of clutches per year and per lifetime, and the life span seem to be correlated with size rather than with phylogenetic position of the species.
THE LIFE-CYCLE AND PRODUCTIVITY OF THE LAND SNAIL THEBA PISANA (MOLLUSCA: HELICIDAE)
TLDR
Samples from other localities covering the whole range of T. pisana suggest both annual and biennial life-cycles with breeding in summer and autumn in Britain and northern France, and later in autumn and in winter in the Mediterranean.
Differences in the life histories of Xerolenta obvia (Menke, 1828) (Hygromiidae) in a coastal and a mountainous area of northern Greece
TLDR
The life cycle of Xerolenta obvia was studied in two areas, Paleokastro (Chalkidiki) and Nea Karvali (Kavala), a coastal area in northern Greece, where snails hatch in autumn, become adult the following July, but do not lay eggs until October, after which they die.
Possible benefits of egg cannibalism in the land snail Arianta arbustorum (L.).
TLDR
Hatchlings of the land snail Arianta arbustorum were used to test whether the ingestion of conspecific eggs confers nutritional advantages to a cannibal in terms of increased growth rate and survival, and a cannibalistic diet during the hatchling stage will give accelerated growth and higher survival.
Studies on The Reproductive Biology of Gastropods: Part 1. The Systematic Distribution of Egg Retention in the Subclass Pulmonata (Gastropoda)
TLDR
It appears that while approximately one-half of the more than sixty families of stylommatophoran families contain at least one ovoviviparous species, the total number of species involved is small.
Helix lutescens Rossmassler, 1837 (Gastropoda: Pulmonata: Helicidae) - its structure, biology and ecology
TLDR
The results made it possible to trace seasonal changes in the abundance within the whole population of H. lutescens, which, because of its insular occurrence and the threat resulting from confusion with the edible H. pomatia, is a protected species.
...
1
2
3
4
5
...