Data/hora: 02/06/2024 12:47:57

Provedor de dados: | 103
País: | Brazil
Título: | Behavioral repertory of Trichodactylus panoplus (Crustacea: Trichodactylidae) under laboratory conditions
Autores: | Zimmermann,Bianca L.; Aued,Anaide W.; Machado,Stela; Manfio,Daiara; Scarton,Laura P.; Santos,Sandro.
Data: | 2009-03-01
Ano: | 2009
Palavras-chave: | Decapoda; Diel activity; Ethogram; Substrate preference.
Resumo: | This work describes the behavioral repertory of Trichodactylus panoplus von Martens, 1869, based on the animals' diel activity and the possible substrate preference under laboratory experiments. Three experimental replicates were carried out, each using six animals (three males and three females). There were four periods of observation a day, with a total of 864 observation sessions and 144 hours of experiments. A total of 15 behavioral acts divided into five categories were recorded: feeding, exploration of the environment, immobility, social interaction, and self-grooming. The obtained results suggest that T. panoplus has greater activity during the night (p &lt; 0.05), yet without showing an activity peak. In addition, the acceptance of food does not depend on the photoperiod. There was a significant preference for gravel as the chosen substrate. The Morisita index indicates an aggregated distribution of these animals, confirming their preference for substrate with gravel. The increase in activity at night and the preference for substrate with gravel, which can be used to disguise these individuals, would be associated to some anti-predator strategies of these crabs against visually orientated predators.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702009000100002
Editor: | Sociedade Brasileira de Zoologia
Relação: | 10.1590/S1984-46702009000100002
Formato: | text/html
Fonte: | Zoologia (Curitiba)  v.26 n.1 2009
Fonte: | info:eu-repo/semantics/openAccess