Bubulcus ibis Linnaeus, 1758

The Cattle Egrets are more able to ‘ acquire and defend nests and nest materials, and are more aggressive throughout the incubation period. Subsequent diffcrcnces in success from hatching through fledging may be the result of increased disturbance due to the aggressiveness of Cattle Egrets and to differences in their ability to feed the young. (Burger, J. 1978) Competição inter específica por área e recursos nos ninhais no Arquipelago de Fernadno de Noronha Bubulcus ibis colonized Fernando de Noronha, showing the current status of invasive resident species, being a potential source of disturbance of the environments used by Sula sula, mainly through competition for space for dormitories and nests. (Barbosa-Filho et al. 2009) (Nunes et al. 2010)

garça-vaqueira vem predando espécies nativas do Arquipélago, como: a viuvinha Anous minutus (Boie, 1844), o benedito Anous stolidus (Linnaeus, 1758) e o trinta-réis-de-manto-negro Onychoprion fuscatus (Linnaeus, 1766) (Silva 2008); e também mabuias Euprepis atlanticus (Schmidt, 1945), uma espécie de lagarto endêmica da ilha (Silva Jr et al. 2004, Silva 2008). (Barbosa-Filho et al. 2009)

Hiperfertilidade do substrato. El efecto a nivel ecosistémico de las colonias de B. ibis es un tanto diferente de las demás garzas, ya que la mayoría de las zancudas nativas se alimentan primariamente en ecosistemas acuáticos y, por tanto, lo que hacen es reciclar los nutrientes dentro de ellos. Esta especie, sin embargo, transfiere nutrientes y energía desde los ecosistemas terrestres a los acuáticos. (Avila et al. 2019)

Cattle Egrets in New Jersey appear more successful than the native North American herons and ibises. Cattle Egrets, more aggressive than the other species, successfully defended higher perches than those of much larger species. They were also able to win more than half of their inter specific encounters despite their smaller size. I suggest that differences in nest site selection, egg-laying, and egg hatching success are due to direct competition. The Cattle Egrets are more able to ‘ acquire and defend nests and nest materials, and are more aggressive throughout the incubation period. Subsequent differences in success from hatching through fledging may be the result of increased disturbance due to the aggressiveness of Cattle Egrets and to differences in their ability to feed the young. (Burger, J. 1978)