Population size of Humboldt penguins assessed by combined terrestrial and at-sea counts.

Luna-Jorquera, Guillermo, Garthe, Stefan , Sepulveda, Felipe G., Weichler, Tanja and Vàsquez, Julio A. (2000) Population size of Humboldt penguins assessed by combined terrestrial and at-sea counts. Colonial Waterbirds, 23 (3). pp. 506-510. DOI 10.2307/1522191.

[img] Text
Luna-Jorquera.pdf - Published Version
Restricted to Registered users only

Download (781Kb)

Supplementary data:

Abstract

The Humboldt Penguin (Spheniscus humboldti) has been reported as declining along its distributional range and has recently been classified as vulnerable. The actual size of the Humboldt Penguin population is still unknown, and a complete population assessment is required. Here we present a study combining both counts of molting birds on land and counts of birds at sea during the molting period. We conducted our study in the Coquimbo Region, Northern Chile, and found 7,619 birds on land and 2,700 at sea, adding up to a total of about 10,300 Humboldt Penguins during the molting season (February 1999). Since these numbers are much higher than all other recent estimates, we emphasize that assessment on land and at sea need to be combined to provide more reliable estimates.

Document Type: Article
Keywords: Sea birds; Penguins; Seas; Population size; Population estimates; Land; Breeding; Islands; Environmental conservation
Research affiliation: OceanRep > GEOMAR > FB3 Marine Ecology
Refereed: No
Open Access Journal?: No
DOI etc.: 10.2307/1522191
ISSN: 0738-6028
Date Deposited: 18 Feb 2008 17:24
Last Modified: 18 Mar 2020 09:41
URI: http://oceanrep.geomar.de/id/eprint/6645

Actions (login required)

View Item View Item

Document Downloads

More statistics for this item...