AMoveE 2014: Lisa Davenport
Channel: Movebank
Date: 2014-05-20

This talk was presented by Lisa Davenport on 5 May 2014 as part of the Symposium on Animal Movement and the Environment, held at the North Carolina Museum of Natural Sciences in Raleigh.

Davenport L, Endo W, Ocampo-Peñuela N, Peres C, Bazán IN, Hennessey B, 2014, "A tale of four countries: satellite telemetry of the Orinoco Goose (Neochen jubata) in Peru, Brazil, Bolivia and Colombia"

Abstract: The Orinoco Goose (Neochen jubata), is described as the "only true forest goose," and is rare and declining (CR in Peru and NT elsewhere). It is a long-distance intra-Amazonian migrant, tracked via satellite telemetry between breeding populations in both Peru and Brazil to the Llanos de Moxos, Bolivia (Davenport, Nole and Carlos 2012). Birds tracked showed high site fidelity to both breeding grounds and wet-season feeding grounds (Davenport, Endo and Peres, unpub results). We report on the movements of 7 birds tagged between 2010 and 2013, including 3 tagged in Peru, 2 tagged in Brazil and 2 tagged in Colombia. Timing of wet-season migrations should be related to the schedule and extent of flooding of the beaches and lake habitats where they feed and raise young each dry season. Flooding events are relatively stable in the lowland Rio Jurua (Brazil) fieldsite compared to the Rio Manu (Peru) headwaters fieldsite; however, timing of the onset of migration for our tagged individuals was highly divergent from both sites. We report on observations that suggest that the timing and duration of migration is more dependent on survivorship of young-of-the-year than on flooding schedule. High predation of juveniles, a constraint faced by many tropical bird species, appears to be an important determinant of the Orinoco Goose's unusual reproductive behavior (including cavity nesting), partial migration patterns, and social structure. Movements of Colombian birds tagged in December 2013 are forthcoming and will be compared to work from Peru and Brazil.