Comparative egg attendance patterns of incubating polar petrels
Abstract Background The internal environment of eggs in most birds is regulated by transferring heat energy through contact incubation, maintaining nest microclimate, and frequent egg turning by the incubating parent on its nest. However, we lack information about egg attendance patterns in birds th...
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ftdoajarticles:oai:doaj.org/article:c474b4a357fa492e8e122b1af05ed2b4 2023-05-15T13:48:51+02:00 Comparative egg attendance patterns of incubating polar petrels Scott A. Shaffer Pierre Blévin Christophe Barbraud Olivier Chastel Henri Weimerskirch 2021-05-01T00:00:00Z https://doi.org/10.1186/s40317-021-00240-4 https://doaj.org/article/c474b4a357fa492e8e122b1af05ed2b4 EN eng BMC https://doi.org/10.1186/s40317-021-00240-4 https://doaj.org/toc/2050-3385 doi:10.1186/s40317-021-00240-4 2050-3385 https://doaj.org/article/c474b4a357fa492e8e122b1af05ed2b4 Animal Biotelemetry, Vol 9, Iss 1, Pp 1-11 (2021) Biologging Cape petrel Egg turning rates Egg temperatures Egg neglect Snow petrel Ecology QH540-549.5 Animal biochemistry QP501-801 article 2021 ftdoajarticles https://doi.org/10.1186/s40317-021-00240-4 2022-12-31T12:39:22Z Abstract Background The internal environment of eggs in most birds is regulated by transferring heat energy through contact incubation, maintaining nest microclimate, and frequent egg turning by the incubating parent on its nest. However, we lack information about egg attendance patterns in birds that breed in polar environments where variations in life history are expected to influence incubation behavior. Moreover, crevice/burrow nesting petrels in high-latitude regions are known for periodically leaving their egg unattended (hereafter ‘egg neglect’), but there is little reporting on the internal condition of unattended eggs. At Dumont d’Urville Station, Antarctica, we studied the incubation behavior of 24 snow (Pagodroma nivea) and 15 Cape (Daption capense) petrel pairs using egg loggers that recorded egg turning rates, orientation changes, and temperatures at 1 Hz for durations of 3–6 days. Results Egg turning frequency (1.31 ± 0.33 vs. 1.38 ± 0.39 turns h−1), angle change per turn (43.1 ± 43.2 vs. 48.6 ± 43.7° turn−1), and egg temperature (34.1 ± 2.3 vs. 34.1 ± 2.0 °C) were nearly identical for snow and Cape petrels, respectively. However, egg neglect was only observed in snow petrel nests (based on egg temperature changes) where loggers recorded mean durations of 1.34 ± 1.15 days (maximum duration of 3.63 days). During periods of neglect, eggs cooled to 5.5 ± 1.8 °C over an average of 91 min, but were rewarmed by parents in only 76 min at a rate of 0.33 °C min−1. Conclusions Egg temperatures of both species during regular incubation were within 1–2 °C of other high-latitude petrel species, but neglected snow petrel eggs remained several degrees above freezing, which was likely attributed to crevice nesting where neglected eggs are buffered by environmental conditions. Using egg rewarming rates, thermal capacity of eggs, and published metabolic rates, we estimate egg rewarming costs in snow petrels to be 1.5 to 1.9 × BMR. Excluding egg neglect periods, turning rates for both petrel species were lower than ... Article in Journal/Newspaper Antarc* Antarctica Cape Petrel Cape Petrels Daption capense Snow Petrel Snow Petrels Directory of Open Access Journals: DOAJ Articles Nivea ENVELOPE(-45.479,-45.479,-60.580,-60.580) Dumont d’Urville ENVELOPE(140.000,140.000,-66.667,-66.667) Animal Biotelemetry 9 1 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Biologging Cape petrel Egg turning rates Egg temperatures Egg neglect Snow petrel Ecology QH540-549.5 Animal biochemistry QP501-801 |
spellingShingle |
Biologging Cape petrel Egg turning rates Egg temperatures Egg neglect Snow petrel Ecology QH540-549.5 Animal biochemistry QP501-801 Scott A. Shaffer Pierre Blévin Christophe Barbraud Olivier Chastel Henri Weimerskirch Comparative egg attendance patterns of incubating polar petrels |
topic_facet |
Biologging Cape petrel Egg turning rates Egg temperatures Egg neglect Snow petrel Ecology QH540-549.5 Animal biochemistry QP501-801 |
description |
Abstract Background The internal environment of eggs in most birds is regulated by transferring heat energy through contact incubation, maintaining nest microclimate, and frequent egg turning by the incubating parent on its nest. However, we lack information about egg attendance patterns in birds that breed in polar environments where variations in life history are expected to influence incubation behavior. Moreover, crevice/burrow nesting petrels in high-latitude regions are known for periodically leaving their egg unattended (hereafter ‘egg neglect’), but there is little reporting on the internal condition of unattended eggs. At Dumont d’Urville Station, Antarctica, we studied the incubation behavior of 24 snow (Pagodroma nivea) and 15 Cape (Daption capense) petrel pairs using egg loggers that recorded egg turning rates, orientation changes, and temperatures at 1 Hz for durations of 3–6 days. Results Egg turning frequency (1.31 ± 0.33 vs. 1.38 ± 0.39 turns h−1), angle change per turn (43.1 ± 43.2 vs. 48.6 ± 43.7° turn−1), and egg temperature (34.1 ± 2.3 vs. 34.1 ± 2.0 °C) were nearly identical for snow and Cape petrels, respectively. However, egg neglect was only observed in snow petrel nests (based on egg temperature changes) where loggers recorded mean durations of 1.34 ± 1.15 days (maximum duration of 3.63 days). During periods of neglect, eggs cooled to 5.5 ± 1.8 °C over an average of 91 min, but were rewarmed by parents in only 76 min at a rate of 0.33 °C min−1. Conclusions Egg temperatures of both species during regular incubation were within 1–2 °C of other high-latitude petrel species, but neglected snow petrel eggs remained several degrees above freezing, which was likely attributed to crevice nesting where neglected eggs are buffered by environmental conditions. Using egg rewarming rates, thermal capacity of eggs, and published metabolic rates, we estimate egg rewarming costs in snow petrels to be 1.5 to 1.9 × BMR. Excluding egg neglect periods, turning rates for both petrel species were lower than ... |
format |
Article in Journal/Newspaper |
author |
Scott A. Shaffer Pierre Blévin Christophe Barbraud Olivier Chastel Henri Weimerskirch |
author_facet |
Scott A. Shaffer Pierre Blévin Christophe Barbraud Olivier Chastel Henri Weimerskirch |
author_sort |
Scott A. Shaffer |
title |
Comparative egg attendance patterns of incubating polar petrels |
title_short |
Comparative egg attendance patterns of incubating polar petrels |
title_full |
Comparative egg attendance patterns of incubating polar petrels |
title_fullStr |
Comparative egg attendance patterns of incubating polar petrels |
title_full_unstemmed |
Comparative egg attendance patterns of incubating polar petrels |
title_sort |
comparative egg attendance patterns of incubating polar petrels |
publisher |
BMC |
publishDate |
2021 |
url |
https://doi.org/10.1186/s40317-021-00240-4 https://doaj.org/article/c474b4a357fa492e8e122b1af05ed2b4 |
long_lat |
ENVELOPE(-45.479,-45.479,-60.580,-60.580) ENVELOPE(140.000,140.000,-66.667,-66.667) |
geographic |
Nivea Dumont d’Urville |
geographic_facet |
Nivea Dumont d’Urville |
genre |
Antarc* Antarctica Cape Petrel Cape Petrels Daption capense Snow Petrel Snow Petrels |
genre_facet |
Antarc* Antarctica Cape Petrel Cape Petrels Daption capense Snow Petrel Snow Petrels |
op_source |
Animal Biotelemetry, Vol 9, Iss 1, Pp 1-11 (2021) |
op_relation |
https://doi.org/10.1186/s40317-021-00240-4 https://doaj.org/toc/2050-3385 doi:10.1186/s40317-021-00240-4 2050-3385 https://doaj.org/article/c474b4a357fa492e8e122b1af05ed2b4 |
op_doi |
https://doi.org/10.1186/s40317-021-00240-4 |
container_title |
Animal Biotelemetry |
container_volume |
9 |
container_issue |
1 |
_version_ |
1766249853487153152 |