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(2003) on Europa Island and Le Corre (personal communication) on WTTB on Seychelles (as shown in Table 4) and overall higher mean foraging range during short trips than Sommerfeld and Hennicke (2010), suggesting that the southwestern Atlantic oceanic environment around the breeding colony at Fernando de Noronha may show less prey availability than other tropical areas.
Therefore, WTTB breeding in Fernando de Noronha seem not to associate with dolphins in the Archipelago.
Range and duration of short and long foraging trips of WTTB in Fernando de Noronha Archipelago.
The WTTB is listed as threatened by the Brazilian Red List (BRASIL, 2003) due to its low breeding success, to the limited number of breeding islands and the small population size.
norvegicus (Berkenhout, 1769), Felis catus Linnaeus, 1758) are known to prey on WTTB eggs and chicks and are a threat to nests on the main island of the Fernando de Noronha archipelago.
White-tailed Tropicbirds (hereafter WTTBs) breed on two Brazilian archipelagos, Fernando de Noronha and Abrolhos (Figure 1).
As in other seabirds, the breeding cycle, breeding site selection and nest location of WTTBs are influenced by climate, food availability, density and other biotic an abiotic factors (Phillips, 1987; Ramos et al., 2005; Catry et al., 2009).
Reproduction of WTTBs in the Fernando de Noronha archipelago was monitored between August 2011 and January 2012.
For WTTBs, breeding success has been observed to be affected by nest abandonment, intraspecific combats and predation by rats (Rattus rattus (Linnaeus, 1758) (Garnett and Crowley, 2000; Sarmento et al., 2014) and crabs (Gecarcinus spp.
There are records of WTTBs breeding at five and six years old (Harris, 1979).
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