Experimental studies of the exploitation and overcrowding of a natural population of the Roman snail, Helix pomatia L.

Woyciechowski, Michał

doi:ISSN 0420-9036

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Experimental studies of the exploitation and overcrowding of a natural population of the Roman snail, Helix pomatia L. Woyciechowski, Michał

Object structure

Experimental studies of the exploitation and overcrowding of a natural population of the Roman snail, Helix pomatia L.

Studies of a population of the Roman snail

Woyciechowski, Michał

Polska Akademia Nauk. Instytut Ekologii

Polish Scientific Publishers

Warszawa

1980

Pages 401-421 : illustrations ; 24 cm ; Bibliographical references (pages 420-421) ; Abstract in Polish

Journal/Article

terrestrial snails ; Helix pomatia ; Ojców National Park ; field experiments ; population ; exploitation ; overcrowding ; density regulation

Surveys of the Roman snails were carried out in the Ojców National Park, at three experimental sites. In a population that had been rejuvenated due to exploitation a reduction in fecundity was found; with an increased mobility of individuals this meant a lack of partners for mating. Food supplies and migrations are factors determining the density. An experimental increase in density caused by man accelerates the mobility and reduces the fecundity. Emigration was more often found among introduced individuals, differing in size from the native ones. On the basis of the annual shell increments it has been established that the growth of an individual usually continues for 4 years, often still after the attainment of sexual maturity, whereas the body size of individuals from local habitats varies as a result of selection.

1. Blalock H. B. 1977 - Statystyka dla socjologów [Social statistics] - Państwowe Wydawnictwo Naukowe, Warszawa, 512 pp.
2. Bustard H. R., Tognetti K. P. 1969 - Green sea turtles: a discrete simulation of density-dependent population regulation - Science, N. Y. 163:939-941.
3. Cadart J. 1955 - Les escargots (Helix pomatia L. et Helix aspersa M.) biologic, elevage, parcage, historic, gastronomic, commerce - Paris, 420 pp.
4. Cain A. J., Sheppard P. M. 1950 - Selection in the polymorphic land snail Cepaea nemoralis - Herdity, 4:275-294.
5. Cohen D. 1967 - Optimalization of seasonal migratory behavior - Am. Nat. 101:5-7.
6. Dziabaszewski B. 1975 - Z biologii ślimaka winniczka (Helix pomatia L.) ze szczególnym uwzględnieniem rozrodu [Some problems in the biology of Roman snail (Helix pomatia L.) with particular regard to reproduction] - Poznańskie Towarzystwo Przyjaciół Nauki, No. 39: 48 pp.
7. Edelstam C., Palmer C. 1950 - Homing behaviour in gastropods - Oikos, 2:259-270.
8. Eisenberg R. M. 1966 - The regulation of density in a natural population of the pond snail Lymnaea ebdes - Ecology, 47: 889-906.
9. Hamilto n W. D. 1964 - The genetic evolution of social behaviour - J. theor. Biol. 7:1-52.
10. Kunkel K. 1916 - Zur Biologic der Lungenschnecken - Heidelberg, 208 pp.
11. Lidicker W. Z. Jr. 1962 - Emigration as a possible mechanism permitting the regulation of population density below carrying capacity - Am. Nat. 96:29-33.
12. Łomnicki A. 1964 - Some results of experimental introduction of new individuals into natural population of the Roman snail Helix pomatia L. - Bull. Acad. pol. Sci. Cl. II. Ser. Sci. biol. 12:301-304.
13. Łomnicki A. 1971 - Struktura i regulacja wielkości populacji ślimaka winniczka, Helix pomatia L., a niektóre zagadnienia jego ochrony [Population structure and regulation of population size of the Roman snail, Helix pomatia L., and some problems of its conservation] - Ochr. Przyr. 36: 189-255.
14. Łomnicki A. 1977 - Dobór grupowy [Group selection] - Kosmos A, 26:41-53.
15. Łomnicki A., Slobodkin L.B. 1966 - Floating in Hydra littoralis - Ecology, 47:881-889.
16. May R. M. 1975 - Slugs and plants - Nature, Lond. 258:108.
17. Medwecka-Kornaś A., Kornaś J. 1963 - Mapa zbiorowisk roślinnych Ojcowskiego Parku Narodowego [The vegetation map of the Ojców National Park] - Ochr. Przyr. 29:17-87.
18. Petrusewicz K. 1957 - Investigation of experimentally induced population growth - Ekol. pol. A, 5:281-309.
19. Pollard E. 1973 - Growth classes in the adult Roman snail (Helix pomatia L.) - Oecologia, 12:209-212.
20. Pollard E. 1975 - Aspects of ecology of Helix pomatia L. - J. anim. Ecol. 44:305-329.
21. Slobodkin L. B. 1964 - Growth and regulation of animal populations - Holt, Rinehart and Winston, New York, 184 pp.
22. Stępczak K. 1976 - Występowanie, zasoby, uzyskiwanie i ochrona ślimaka winniczka (Helix pomatia L.) w Polsce [Occurrence, resources, exploitation and preservation of the Roman snail (Helix pomatia L.) in Poland] - Uniw. im. A. Mickiewicza w Poznaniu. Ser. Zool. 3:1-68.
23. Urbański J. 1963 - Ślimak winniczek Helix pomatia L., jego systematyka, biologia, znaczenie gospodarcze i ochrona [The apple snail Helix pomatia L., its systematics, biology, economic importance and protection] - Ochr. Przyr. 29:215-254.
24. Wilson E. O. 1975 - Sociobiology - the new synthesis - The Belknop Press of Harvard University Press, Cambridge-Massachusetts-London, 697 pp.
25. Woyciechowski M., Łomnicki A. 1977 - Mating frequencies between resident and added individuals in a population of land snail Helix pomatia L. - Bull. Acad. pol. Sci. Cl. II. Ser. Sci. biol. 25:159-162.
26. Wynne -Edwards V. C. 1977 - Intrinsic population control: an introduction. Population control by social behaviours - Institute of Biology, London, 1-22.
27. Żyromska-Rudzka H. 1966 - Abundance and emigration of Tribolium in a laboratory model - Ekol. pol. A, 14:491-518.