Life Cycles of Clausiliids of Poland — Knowns and Unknowns

Maltz, Tomasz K.; Sulikowska-Drozd, Anna

doi:10.3161/000345408x396783

Cited by 40 publications

(45 citation statements)

References 36 publications

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“…This supports the earlier observations of the authors on delayed maturation in clausiliids (Maltz & Sulikowska-Drozd 2011). Under laboratory conditions density affects growth rate of juveniles (Baur & Baur 1992; at low densities clausiliids attain their ultimate size in 14-32 weeks (Maltz & Sulikowska-Drozd 2008). V. gulo, V. elata and V. turgida complete their growth in ca.…”

Section: Discussionsupporting

confidence: 90%

“…For small oviparous clausiliids (e.g., Clausilia parvula Férussac, 1807) the period of external egg development was slightly shortened (Maltz & Sulikowska-Drozd 2008).…”

Section: Discussionmentioning

confidence: 99%

“…Life history strategies of clausiliids are only fragmentarily known, yet recent studies point to some common traits such as determined growth, delayed maturation, iteroparity, longevity, ability for selfing and continuum of reproductive modes from egg-laying to live-bearing (Heller & Dolev 1994;Wirth et al 1997;Maltz & Sulikowska-Drozd 2008, 2011Sulikowska-Drozd 2009, 2011Szybiak 2010, etc.). It was noticed that closely related species may exhibit different reproductive strategies (e.g., short egg retention and viviparity, sensu Blackburn 1999), on the other hand, brooding species are classified in different genera which suggests that among clausiliids the evolutionary shift from oviparity, which prevails in land snails (see Heller 2001), towards the embryos retention in reproductive tract occurred more than once.…”

Section: Introductionmentioning

confidence: 99%

“…It was noticed that closely related species may exhibit different reproductive strategies (e.g., short egg retention and viviparity, sensu Blackburn 1999), on the other hand, brooding species are classified in different genera which suggests that among clausiliids the evolutionary shift from oviparity, which prevails in land snails (see Heller 2001), towards the embryos retention in reproductive tract occurred more than once. In respect of reproductive strategies, Baleinae of Central Europe are the best studied group of clausiliids, with typically oviparous species, e.g., Laciniaria plicata (Draparnaud, 1801), Bulgarica cana (Held, 1836) (Maltz & Sulikowska-Drozd 2008;Marzec 2010) as well as live-bearing species, e.g., Balea perversa (L., 1758), Alinda biplicata (Montagu, 1803) (Baur & Baur 1992;Maltz & Sulikowska-Drozd 2008. Altogether, the reproductive modes are presently known for 10 species of Baleinae from that region which according to Falkner et al (2001) belong to 4 genera and according to Nordsieck (2007) to 5 genera.…”

Section: Introductionmentioning

confidence: 99%

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Oviparous reproduction of Vestia ranojevici moravica confirms taxonomic value of life history characters in carpathian clausiliids (Gastropoda: Pulmonata)

Sulikowska-Drozd

Maltz²

2013

Biologia

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Based on five-year observation of 36 snails collected in the Čeladná valley (Moravia, Czech Republic) and their progeny reared in laboratory, it was found that Vestia ranojevici moravica (Brabenec, 1952) is oviparous. The oviparity in V. ranojevici is in line with the previous assumption of its reproductive strategy based on anatomical studies alone. It supports the separate position of the species in the genus Vestia (subgenus Brabenecia). V. ranojevici was kept at room temperature (18-25• C) between March and October; in winter snails were stored at 3• C. The egg-laying period started in late March, ca. 1 month after raising the temperature, and lasted till September, with one maximum in spring. In the laboratory the snails laid eggs in batches (usually 4-6 eggs, max 11) or singly. The number of batches per pair per season was 1-8; the corresponding number of eggs -3-40. The eggs were gelatinous, with separate calcium carbonate crystals in the external envelope. The average egg size was 1.80 × 1.51 mm, but actual size and shape were highly variable: larger and more elongated eggs were produced mainly by laboratory reared animals. Freshly deposited eggs did not contain shelled embryos nor the reproductive tract of dissected individuals contained eggs. At room temperature the eggs hatched after ca. 14-16 days, then the shell growth lasted 20-29 weeks; the snails laid eggs 30 weeks after completion of shell growth indicating one-year life cycle under laboratory conditions. Adult individuals collected in the field reproduced during 4-5 consecutive years. Comparison of V. ranojevici reproduction to the results of breeding of other Carpathian clausiliids in the same laboratory shows that similar reproductive strategies may have evolved independently in different lineages of the group: both the oviparous and egg retaining species belong to the genera Vestia and Balea.

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Section: Discussionsupporting

confidence: 90%

“…For small oviparous clausiliids (e.g., Clausilia parvula Férussac, 1807) the period of external egg development was slightly shortened (Maltz & Sulikowska-Drozd 2008).…”

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Oviparous reproduction of Vestia ranojevici moravica confirms taxonomic value of life history characters in carpathian clausiliids (Gastropoda: Pulmonata)

Sulikowska-Drozd

Maltz²

2013

Biologia

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“…The growth phases recorded in T. hispidus (fast phase followed by slow phase) seem to be typical for helicids and hygromiids (Maltz 2003;Kuźnik-Kowalska & Roksela 2009). The slow growth phase in such species is associated with a development of a reproductive system which has been discussed in Maltz (2003) and Maltz & Sulikowska-Drozd (2008). In the case of growth in the field, environmental factors such as variable temperature or humidity associated with a particular season should be considered.…”

Section: Life History Of Trochulus Hispidusmentioning

confidence: 99%

Field and laboratory studies on the life-cycle, growth and feeding preference in the hairy snail Trochulus hispidus (L., 1758) (Gastropoda: Pulmonata: Hygromiidae)

Proćków¹,

Drvotová

Juříčková

et al. 2012

Biologia

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For the first time the life cycle of the common land snail Trochulus hispidus was completely described in Central Europe (Poland). This is a semelparous species predominantly with an annual life cycle and the reproductive period lasting from April till October. The first young snails hatch in spring, grow rapidly in summer and reach ca. 4 whorls until winter. In spring of the next year they mature and reproduce. After that they die. There is hardly any growth from late autumn till early spring. The average proportional growth rate is ca. 0.3 whorl/month in the wild. The fastest growth is present in the youngest snails and then gradually decreases over the course of their age. Laboratory and field observations allowed for establishing the following life cycle parameters: eggs calcified, almost spherical, ca. 1.5 mm, laid in spring and summer in batches of between 1 and 47. Time to hatching is 6-24 days, hatching is asynchronous; newly-hatched snails have approximately 1.5 whorls. Analysis of food preferences revealed, that T. hispidus tends to restrict its diet during the life. Generally the youngest snails equally consumed leaves of all four tree species offered (Fraxinus excelsior, Acer pseudoplatanus, Tilia cordata and A. platanoides) whereas adults preferred F. excelsior over A. pseudoplatanus and A. platanoides.

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Differences in dispersal- and colonization-related traits between taxa from the freshwater and the terrestrial realm

2013

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Life Cycles of Clausiliids of Poland — Knowns and Unknowns

Cited by 40 publications

References 36 publications

Oviparous reproduction of Vestia ranojevici moravica confirms taxonomic value of life history characters in carpathian clausiliids (Gastropoda: Pulmonata)

Oviparous reproduction of Vestia ranojevici moravica confirms taxonomic value of life history characters in carpathian clausiliids (Gastropoda: Pulmonata)

Field and laboratory studies on the life-cycle, growth and feeding preference in the hairy snail Trochulus hispidus (L., 1758) (Gastropoda: Pulmonata: Hygromiidae)

Differences in dispersal- and colonization-related traits between taxa from the freshwater and the terrestrial realm

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