Patterns of individual growth in the field slug Deroceras agreste (Gastropoda, Agriolimacidae)
| Autor: | A. A. Zotin |
|---|---|
| Rok vydání: | 2009 |
| Předmět: |
animal structures
Agriolimacidae biology Slug Ecology Growth curve (biology) Deroceras agreste biology.organism_classification Body weight General Biochemistry Genetics and Molecular Biology Animal science Gastropoda Compensatory growth (organism) Growth equation General Agricultural and Biological Sciences |
| Zdroj: | Biology Bulletin. 36:28-36 |
| ISSN: | 1608-3059 1062-3590 |
| DOI: | 10.1134/s1062359009010051 |
| Popis: | The growth of individual Deroceras agreste slugs from the date of sampling to the end of life has been studied under laboratory conditions. Seven out of 37 mollusks (≈19%) have shown a finite growth pattern, with their body weight reaching a maximum and decreasing thereafter. The data on these mollusks are well approximated by the finite growth equation. Other mollusks have not reached the maximum weight. In many cases, periods of a sharp decrease in body weight with subsequent return to the initial growth curve (compensatory growth) have been observed. In three animals, the growth curve has changed after such a decrease. A comparison of growth parameters in different individuals with the aid of the Ford-Wallford equation has shown that differences between them lack statistical significance. In generally, the slug D. agreste appears to belong to animals with the finite growth pattern. |
| Databáze: | OpenAIRE |
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