A NEW APPLICATION FOR TRANSPONDERS IN POPULATION ECOLOGY OF THE COMMON TERN

Citation
Ph. Becker et H. Wendeln, A NEW APPLICATION FOR TRANSPONDERS IN POPULATION ECOLOGY OF THE COMMON TERN, The Condor, 99(2), 1997, pp. 534-538
Citations number
20
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Ornithology
Journal title
The Condor → ACNP
ISSN journal
0010-5422
Volume
99
Issue
2
Year of publication
1997
Pages
534 - 538
Database
ISI
SICI code
0010-5422(1997)99:2<534:ANAFTI>2.0.ZU;2-2
Abstract
We injected transponders subcutaneously to mark single Common Tern (St erna hirundo) adults and all chicks of a colony at Wilhelmshaven with the aim of establishing a completely marked colony. We present details on the equipment and methods and report preliminary results. Microtag ged terns can be identified for life, not only at their nest when bree ding, but also at resting places by fixed antennas at distances of < 1 1 cm. Thus, nonbreeders can be identified as well. We also weighed ter ns remotely to obtain information on their body condition. Body mass d ata as well as identification codes were electronically stored. Prelim inary data indicated that adult survival was greater than or equal to 87% and subadult survival until age two was greater than or equal to 2 0%.