Comparative foraging and diving behaviour of coexisting breeding and non-breeding King Penguins (Aptenodytes patagonicus) in Tierra del Fuego, Chile

Camila Gherardi-Fuentes, Klemens Pütz, Cristobal Anguita, Alejandro Simeone

Resultado de la investigación: Article

Resumen

Breeding status directly affects the at-sea behaviour of seabirds, resulting in marked differences between breeding and non-breeding birds. In this study, we report for the first time the foraging and diving behaviour of coexisting incubating, courting and non-breeding King Penguins (Aptenodytes patagonicus) at a recently established colony in Tierra del Fuego, Chile, to determine differences in (1) the number and duration of the foraging trips, (2) time spent at sea and on land, and (3) diving performance and foraging success. We obtained data from four incubating, five courting and three non-breeding penguins equipped with time–depth recorders during November and December 2014. Incubating birds performed a single but long trip (8.1 ± 1.9 days), while courting birds performed one or two trips of intermediate duration (2.3 ± 0.8 days) and non-breeders made multiple short trips (0.6 ± 0.1 days). Courting birds spent a significantly greater proportion of their time on land than the other birds. Incubating birds performed the deepest and longest dives and had the highest diving efficiency, while non-breeders performed the shallowest and shortest dives and exhibited low diving efficiencies, suggesting that birds are utilising different foraging areas. These results indicate that incubating, courting and non-breeding King Penguins, although coexisting temporally at the same colony, differentially adjust their foraging and diving behaviour, most likely to accomplish their specific social and energetic demands.

Idioma originalEnglish
Páginas (desde-hasta)61-70
Número de páginas10
PublicaciónEmu
Volumen119
N.º1
DOI
EstadoPublished - 2 ene 2019

Huella dactilar

diving behavior
foraging behavior
Chile
breeding
foraging
bird
birds
diving
duration
penguins
seabird
Aptenodytes patagonicus
seabirds
energetics

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Animal Science and Zoology
  • Nature and Landscape Conservation

Citar esto

@article{7b5a72b8405143e9b661f56f24b4140c,
title = "Comparative foraging and diving behaviour of coexisting breeding and non-breeding King Penguins (Aptenodytes patagonicus) in Tierra del Fuego, Chile",
abstract = "Breeding status directly affects the at-sea behaviour of seabirds, resulting in marked differences between breeding and non-breeding birds. In this study, we report for the first time the foraging and diving behaviour of coexisting incubating, courting and non-breeding King Penguins (Aptenodytes patagonicus) at a recently established colony in Tierra del Fuego, Chile, to determine differences in (1) the number and duration of the foraging trips, (2) time spent at sea and on land, and (3) diving performance and foraging success. We obtained data from four incubating, five courting and three non-breeding penguins equipped with time–depth recorders during November and December 2014. Incubating birds performed a single but long trip (8.1 ± 1.9 days), while courting birds performed one or two trips of intermediate duration (2.3 ± 0.8 days) and non-breeders made multiple short trips (0.6 ± 0.1 days). Courting birds spent a significantly greater proportion of their time on land than the other birds. Incubating birds performed the deepest and longest dives and had the highest diving efficiency, while non-breeders performed the shallowest and shortest dives and exhibited low diving efficiencies, suggesting that birds are utilising different foraging areas. These results indicate that incubating, courting and non-breeding King Penguins, although coexisting temporally at the same colony, differentially adjust their foraging and diving behaviour, most likely to accomplish their specific social and energetic demands.",
keywords = "Comparative behaviour, diving behaviour, foraging ecology, King Penguin, seabird foraging",
author = "Camila Gherardi-Fuentes and Klemens P{\"u}tz and Cristobal Anguita and Alejandro Simeone",
year = "2019",
month = "1",
day = "2",
doi = "10.1080/01584197.2018.1530061",
language = "English",
volume = "119",
pages = "61--70",
journal = "Emu",
issn = "0158-4197",
publisher = "Taylor and Francis Ltd.",
number = "1",

}

Comparative foraging and diving behaviour of coexisting breeding and non-breeding King Penguins (Aptenodytes patagonicus) in Tierra del Fuego, Chile. / Gherardi-Fuentes, Camila; Pütz, Klemens; Anguita, Cristobal; Simeone, Alejandro.

En: Emu, Vol. 119, N.º 1, 02.01.2019, p. 61-70.

Resultado de la investigación: Article

TY - JOUR

T1 - Comparative foraging and diving behaviour of coexisting breeding and non-breeding King Penguins (Aptenodytes patagonicus) in Tierra del Fuego, Chile

AU - Gherardi-Fuentes, Camila

AU - Pütz, Klemens

AU - Anguita, Cristobal

AU - Simeone, Alejandro

PY - 2019/1/2

Y1 - 2019/1/2

N2 - Breeding status directly affects the at-sea behaviour of seabirds, resulting in marked differences between breeding and non-breeding birds. In this study, we report for the first time the foraging and diving behaviour of coexisting incubating, courting and non-breeding King Penguins (Aptenodytes patagonicus) at a recently established colony in Tierra del Fuego, Chile, to determine differences in (1) the number and duration of the foraging trips, (2) time spent at sea and on land, and (3) diving performance and foraging success. We obtained data from four incubating, five courting and three non-breeding penguins equipped with time–depth recorders during November and December 2014. Incubating birds performed a single but long trip (8.1 ± 1.9 days), while courting birds performed one or two trips of intermediate duration (2.3 ± 0.8 days) and non-breeders made multiple short trips (0.6 ± 0.1 days). Courting birds spent a significantly greater proportion of their time on land than the other birds. Incubating birds performed the deepest and longest dives and had the highest diving efficiency, while non-breeders performed the shallowest and shortest dives and exhibited low diving efficiencies, suggesting that birds are utilising different foraging areas. These results indicate that incubating, courting and non-breeding King Penguins, although coexisting temporally at the same colony, differentially adjust their foraging and diving behaviour, most likely to accomplish their specific social and energetic demands.

AB - Breeding status directly affects the at-sea behaviour of seabirds, resulting in marked differences between breeding and non-breeding birds. In this study, we report for the first time the foraging and diving behaviour of coexisting incubating, courting and non-breeding King Penguins (Aptenodytes patagonicus) at a recently established colony in Tierra del Fuego, Chile, to determine differences in (1) the number and duration of the foraging trips, (2) time spent at sea and on land, and (3) diving performance and foraging success. We obtained data from four incubating, five courting and three non-breeding penguins equipped with time–depth recorders during November and December 2014. Incubating birds performed a single but long trip (8.1 ± 1.9 days), while courting birds performed one or two trips of intermediate duration (2.3 ± 0.8 days) and non-breeders made multiple short trips (0.6 ± 0.1 days). Courting birds spent a significantly greater proportion of their time on land than the other birds. Incubating birds performed the deepest and longest dives and had the highest diving efficiency, while non-breeders performed the shallowest and shortest dives and exhibited low diving efficiencies, suggesting that birds are utilising different foraging areas. These results indicate that incubating, courting and non-breeding King Penguins, although coexisting temporally at the same colony, differentially adjust their foraging and diving behaviour, most likely to accomplish their specific social and energetic demands.

KW - Comparative behaviour

KW - diving behaviour

KW - foraging ecology

KW - King Penguin

KW - seabird foraging

UR - http://www.scopus.com/inward/record.url?scp=85058197212&partnerID=8YFLogxK

U2 - 10.1080/01584197.2018.1530061

DO - 10.1080/01584197.2018.1530061

M3 - Article

AN - SCOPUS:85058197212

VL - 119

SP - 61

EP - 70

JO - Emu

JF - Emu

SN - 0158-4197

IS - 1

ER -