First abundance estimates of Magellanic penguin (Spheniscus magellanicus) colony at Tucker Islet
Abstract
The nesting site of Magellanic penguins (Spheniscus magellanicus) at Tucker islets (54 degrees 09'S; 70 degrees 17'W), Chile, is documented and information from the first population abundance estimate on the largest islet during the beginning of chick rearing is provided. Ground-based counts yielded an estimate of 8883 (95% Confidence Intervals: 6653-11,802) burrows; however, counts of active burrows resulted in a total estimate of 2218 (95% Confidence Intervals: 1593-2840) breeding pairs. Based on the estimated total of burrows, this suggests a population decline consistent with trends for other colonies in the Magellan Strait and adjacent waters in Chile. An annual monitoring program to track population changes, breeding success, and chick and egg survival rates is required to assess the species' conservation status of the colony.
Más información
Título según WOS: | ID WOS:001135763700001 Not found in local WOS DB |
Título de la Revista: | POLAR BIOLOGY |
Volumen: | 47 |
Número: | 2 |
Editorial: | Springer |
Fecha de publicación: | 2024 |
Página de inicio: | 157 |
Página final: | 162 |
DOI: |
10.1007/s00300-023-03215-8 |
Notas: | ISI |