BECAS
FERNÁNDEZ juan manuel
congresos y reuniones científicas
Título:
? Helmeted woodpecker roosts in decay cavities in large living trees: a clue to its association with old-growth forest
Autor/es:
LAMMERTINK, MARTJAN; FERNÁNDEZ, JUAN MANUEL
Lugar:
Iguazu
Reunión:
Congreso; Ornithological Congress of the Americas; 2017
Institución organizadora:
Association of Field Ornithologists, Sociedade Brasileira de Ornitologia y Aves Argentinas,
Resumen:
The Helmeted Woodpecker (Celeus galeatus) is a rare, threatened species associatedwith old-growth Atlantic Forest in northeast Argentina, southern Brazil and easternParaguay. The ecological requirements of the species that drive its association with oldforest are poorly understood. Between 2013 and 2016 we radio-tracked nine HelmetedWoodpecker individuals in two selectively logged forests and one old-growth forest.One finding is that for year-round overnight roosting, Helmeted Woodpeckers invariablyuse decay cavities in large living trees, whereas most other woodpecker species roost inexcavated cavities. Moreover, after nesting and raising fledglings, each adult roosts withone juvenile in a large decay cavity for a period of up to 67 days. The tree species usedfor roost cavities in old-growth forest are desired timber species targeted in selectivelogging. In forests with logging Helmeted Woodpeckers are rarer and use different treespecies for roosting. The year-round roosting of Helmeted Woodpeckers in decaycavities in old trees, and the sharing of such cavities with juveniles during the vulnerablepost?fledging months, indicate one factor in the impact of selective logging on theHelmeted Woodpecker.