Data/hora: 10/06/2024 14:31:41

Provedor de dados: | 27
País: | Belgium
Título: | Competition between the sibling species &lt;i&gt;Tisbe holothuriae&lt;/i&gt; and &lt;i&gt;T. battagliai&lt;/i&gt; (Harpacticoida)
Autores: | Bergmans, M.; Janssens, P.P.M.
Data: | 1988
Ano: | 1988
Palavras-chave: | Competition; Growth; Marine crustaceans; Phenology; Salinity; Sexual reproduction; Sibling species; Harpacticoida; Tisbe battagliai; Tisbe holothuriae.
Resumo: | The influence of the salinity on the performance of the sibling species &lt;i&gt;Tisbe holothuriae&lt;/i&gt; and &lt;i&gt;T. battagliai&lt;/i&gt; in pure and mixed cultures was studied, using laboratory stocks adapted to 32 pro mille for over 175 generations. Cohort studies show that &lt;i&gt;T. holothuriae&lt;/i&gt; has higher growth rates (R&lt;sub&gt;0&lt;/sub&gt; and r) at 32 pro mille, &lt;i&gt;T. battagliai&lt;/i&gt; at 20 pro mille. The latter's life cycle is much less affected by the difference in salinity. 'De Wit' replacement series were used to study competitive interactions. Without water renewal, &lt;i&gt;T. holothuriae&lt;/i&gt; eliminates its sibling species in less than 2 generations, apparently through chemical interference. With water renewal, i.e. when exploitation competition becomes relatively more important, &lt;i&gt;T. holothuriae&lt;/i&gt; still proves superior at 27 pro mille but the two species are competitively almost equal at 20 pro mille. The two species co-occur &lt;i&gt;in situ&lt;/i&gt; during autumn, but their differential predominance at different sites is not explained by the effect of salinity.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3121
Fonte: | %3Ci%3EHydrobiologia+167-168%3C%2Fi%3E%3A+455-462
Fonte: | info:eu-repo/semantics/restrictedAccess