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.

Assessing the trophic niche of South American Terns integrating conventional and isotopie methods

“…The reason for the relatively lower contribution of this fish prey when feeding chicks in 2004 is not clear, as observations during mate-provisioning indicated that Anchovies were available earlier in the breeding season. The inclusion of marine invertebrates has also been recorded at the same South American Tern colony (Fernández Ajó et al 2011), at a colony in southern Brazil (Fracasso et al 2011) and at their wintering grounds (Favero et. al.…”

“…Despite its wide distribution, little is known about its feeding ecology. The only quantitative information on diet is from studies in the breeding season in Argentina (Fernández Ajó et al 2011) and southern Brazil (Fracasso et al 2011) and from the non-breeding season in Argentina (Favero et al 2000;Silva Rodríguez et al 2005;Mariano-Jelicich et al 2011) and Uruguay (Alfaro et al 2011). This paper presents data on the trophic niche of South American Terns breeding in Patagonia, Argentina, gathered over two years.…”

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).…”