A comparison of foraging between the South American and Cabot's Tern in southern Brazil

Abstract

Yorio et al. 1994, Scolaro et al. 1996, Quintana & Yorio 1997. However, there is no information about the diet in Brazil for the two species of terns. Therefore, we analyzed the diet of the South American Terns and Cabot´s Terns breeding colony on the island of Cardos, Florianópolis, Santa Catarina, Brazil. We hypothesized that, in mixed breeding colonies, partitioning of resources should occur between two very similar species. Thus, we predict that there are qualitative (species) and quantitative (size and frequency) differences between the food items delivered to the nests in these two species of terns. We also compare delivery rates and other characteristics of feeding in the two species.

Caracterização Da Avifauna Aquática No Litoral Centro-Norte Do Estado De Santa Catarina (Brasil) a Partir De Dados De Encalhes

“…Com relação às aves marinhas, estas se destacam por apresentar uma grande diversidade de espécies, adaptadas ao ambiente marinho, onde forrageiam em busca de recursos alimentares, entre eles crustáceos, cefalópodes e peixes (Prince & Morgan, 1987;Croxall & Prince, 1996;Branco et al, 2007;Fracasso et al, 2011). As aves marinhas estão distribuídas em cinco ordens (> 300 espécies), a saber: Sphenisciformes, Procellariiformes, Suliformes, Pelecaniformes e Charadriiformes (Piacentini et al, 2015).…”