Reprodução das aves marinhas nas ilhas costeiras de Santa Catarina, Brasil

Abstract

Estudos enfocando a reprodução das aves marinhas no litoral brasileiro são raros quando comparados aos das espécies continentais. Em função da infraestrutura com que conta a maioria dos ornitólogos marinhos para enfrentar as adversidades do mar, além da ausência de atracadouros para o reabastecimento da equipe, abrigos e a morosidade na liberação das permissões de permanência, comprometem o acesso e monitoramento periódico das colônias de aves nas ilhas de nidificação.Mesmo assim, alguns pesquisadores têm contribuído direta ou indiretamente para o conhecimento da reprodução das aves marinhas insulares brasileiras:

Reproductive biology of Cabot's Terns on Cardos Island, Santa Catarina, Brazil

“…Similarly, in Argentina over 75% of Cabot's Terns nest in any given year at a few of ten potential breeding sites located at Punta León and in a small coastal sector in the north of Golfo San Jorge, Chubut (Yorio & Efe 2008). The reported reproductive period of Cabot's Terns on the Santa Catarina coast is May to October (Soares & Schiefler 1995, Branco 2003a). Our research found timing similar to that described by Efe et al (2000) as from May to September on the islands of Espírito Santo, which differs from the period (March-October) cited for the coast of Rio de Janeiro (Sick andLeão 1965, Sick 1997), for the coast of Paraná (June to September -Krul 2004), for the coast of São Paulo (May to August -Campos et al 2004), and for the coast of Argentina (November to February - Scolaro et al 1996).…”

“…Its range extends from the southern USA, in the Caribbean along the coasts of Colombia and Venezuela and in Surinam, Brazil and Uruguay as far south as Puerto Deseado in Argentina (Escalante 1973, Shealer 1999, Barbieri & Paes 2008. Generally they form dense colonies, with nests located about 50cm apart, and have a clutch size of only one egg, which may present one of three color patterns based on number/color of spots per egg , Branco 2003a.…”

“…Cabot's Terns nest collectively in colonies with the South American terns S. hirundinacea and the Royal Tern Thalasseus maximus all along the South American coast, have been recorded with S. hirundinacea on the Papagaios Island in Macaé (RJ) (Sick & Leão 1965) and on the coasts of Espírito Santo (Efe et al 2000), Rio de Janeiro (Alves et al 2004), São Paulo (Campos et al 2004), Paraná (Krul 2004), Santa Catarina (Soares & Schiefl er 1995, Branco 2003a and with both in Uruguay (Lenzi et al 2010) and Argentina (Yorio et al 1994, Scolaro et al 1996, Quintana & Yorio 1997.…”

“…Despite being widely distributed in South America and present in relatively large populations, little is known about the distribution and abundance of Cabot's Terns in Argentina (Duffy et al 1988, Scolaro et al 1996 and Brazil (Sick 1997, Soares & Schiefl er 1995, Efe et al 2000, Branco 2003a, b, 2004. Cardos Island has provided a favorable habitat for Cabot's Tern's breeding since 2001 and this paper presents hitherto unpublished data on the reproductive biology of Cabot's Terns on Cardos Island, Santa Catarina, Brazil.…”

Reprodução de Nycticorax nycticorax (Linnaeus) no litoral de Santa Catarina, Brasil

“…O tamanho dos ovos colocados nos ninhos de gaivotas e trinta-réis, tendem a diminuir com a ordem de postura (PARSONS 1970, BRANCO 2003. O comprimento médio, largura e massa dos ovos apresentaram pequenas oscilações entre os sítios de nidificação, sendo idênticos aos registrados por YU & HAHM (1997) na Província de Kyungnam (Coréia).…”