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Brooding in a temperate zone land snail: seasonal and regional patterns Naturalis
Sulikowska-Drozd, A.; Maltz, T.K.; Kappes, H..
The goal of this study is to assess if the reproductive strategy of a brooding land snail shifts along a climatic gradient. We focused on the following traits: timing and length of the reproductive season, brood size, ontogenetic dynamics of embryos, and reproductive mode (viviparity versus egg-laying). We dissected the central European door snail Alinda biplicata, collected monthly from eight populations covering the oceaniccontinental climatic gradient within the species’ distribution range. Forty percent of the 1706 dissected individuals were brooding. The species displayed a spring-summer reproductive activity pattern: intrauterine brooding was recorded between March and September; first embryos of a developmental stage that equals that of live-born...
Tipo: Article / Letter to the editor Palavras-chave: Clausiliidae; Gastropoda; Life cycle; Moisture; Mollusca; Vivaparity; 42.73.
Ano: 2013 URL: http://www.repository.naturalis.nl/record/447983
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