Data/hora: 18/06/2024 11:56:04

Provedor de dados: | 27
País: | Belgium
Título: | Differential food preferences in three co-occurring species of &lt;i&gt;Tisbe&lt;/i&gt; (Copepoda, Harpacticoida)
Autores: | Vanden Berghe, W.; Bergmans, M.
Data: | 1981
Ano: | 1981
Palavras-chave: | Food preferences Tisbe battagliai Tisbe furcata (Baird; 1837) Tisbe holothuriae.
Resumo: | Killed samples of a monoclonal bacterial strain and an axenic alga were offered in different proportions to &lt;i&gt;Tisbe holothuriae, T. battagliai&lt;/i&gt; and &lt;i&gt;T. furcata&lt;/i&gt;. Incorporation of carbon ranged from 0.05 and 0.39 µg C (adult male)&lt;sup&gt;-1&lt;/sup&gt; d&lt;sup&gt;-1&lt;/sup&gt;. Using a radiolabelling technique, the ratio in which the two food types were assimilated was compared to the ratio in which they were offered. Neither &lt;i&gt;T. holothuriae&lt;/i&gt; nor its sibling species fed selectively under our conditions, but &lt;i&gt;T. furcata&lt;/i&gt; showed a clear preference for bacteria. These findings constitute the first evidence for intrageneric dietary differentiation in harpacticoids. The results of the feeding experiments parallel observed differences in mandible structure. They render all the more acute the problem of resource partitioning between &lt;i&gt;T. holothuriae&lt;/i&gt; and &lt;i&gt;T. battagliai&lt;/i&gt;.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.vliz.be/imisdocs/publications/100832.pdf
Formato: | application/pdf
Fonte: | %3Ci%3EMar.+Ecol.+Prog.+Ser.+4%3C%2Fi%3E%3A+213-219
Fonte: | info:eu-repo/semantics/openAccess