Time and behavioral adjustments to lactation: Insights from a marine predator
Abstract The energetic costs of lactation have been studied in many marine mammals, but little is known about the behavioral adjustments needed to cope with this event. By simultaneously measuring foraging behavior of lactating and nonlactating Antarctic fur seal females, we estimate the behavioral...
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crwiley:10.1111/mms.12970 2024-04-21T07:52:34+00:00 Time and behavioral adjustments to lactation: Insights from a marine predator Borras‐Chavez, Renato Goebel, Michael E. Villegas‐Amtmann, Stella Hückstädt, Luis A. Rivera‐Rebella, Carla Costa, Daniel P. Fariña, José M. Bozinovic, Francisco Institut chilien de l'Antarctique National Oceanic and Atmospheric Administration 2022 http://dx.doi.org/10.1111/mms.12970 https://onlinelibrary.wiley.com/doi/pdf/10.1111/mms.12970 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/mms.12970 https://onlinelibrary.wiley.com/doi/am-pdf/10.1111/mms.12970 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#am http://onlinelibrary.wiley.com/termsAndConditions#vor Marine Mammal Science volume 39, issue 1, page 131-150 ISSN 0824-0469 1748-7692 Aquatic Science Ecology, Evolution, Behavior and Systematics journal-article 2022 crwiley https://doi.org/10.1111/mms.12970 2024-03-28T08:26:29Z Abstract The energetic costs of lactation have been studied in many marine mammals, but little is known about the behavioral adjustments needed to cope with this event. By simultaneously measuring foraging behavior of lactating and nonlactating Antarctic fur seal females, we estimate the behavioral changes necessary to cope with the constraints of lactation and include the first comparative record of dive behavior between lactating and nonlactating female otariids. Nonlactating females exhibited highly variable foraging trip durations and spent long times onshore between trips. In contrast, lactating females exhibited consistently shorter trips and spent half the time hauled‐out compared to nonlactating females likely to maximize offspring provisioning. Lactating females show a reduced mean time per dive but greater percentage of time per trip spent diving compared to nonlactating animals. The reduction in time onshore and trip duration, together with modifications in dive performance suggests additional effort of lactating females to compensate for the constraints of rearing a pup, which has not been observed previously due to the lack of simultaneous comparison of lactating and nonlactating individuals. When possible, future studies of maternal investment should also include nonlactating individuals, since lactation may have a strong synergistic effect with other aspects shaping foraging behavior. Article in Journal/Newspaper Antarc* Antarctic Antarctic Fur Seal Wiley Online Library Marine Mammal Science 39 1 131 150 |
institution |
Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
topic |
Aquatic Science Ecology, Evolution, Behavior and Systematics |
spellingShingle |
Aquatic Science Ecology, Evolution, Behavior and Systematics Borras‐Chavez, Renato Goebel, Michael E. Villegas‐Amtmann, Stella Hückstädt, Luis A. Rivera‐Rebella, Carla Costa, Daniel P. Fariña, José M. Bozinovic, Francisco Time and behavioral adjustments to lactation: Insights from a marine predator |
topic_facet |
Aquatic Science Ecology, Evolution, Behavior and Systematics |
description |
Abstract The energetic costs of lactation have been studied in many marine mammals, but little is known about the behavioral adjustments needed to cope with this event. By simultaneously measuring foraging behavior of lactating and nonlactating Antarctic fur seal females, we estimate the behavioral changes necessary to cope with the constraints of lactation and include the first comparative record of dive behavior between lactating and nonlactating female otariids. Nonlactating females exhibited highly variable foraging trip durations and spent long times onshore between trips. In contrast, lactating females exhibited consistently shorter trips and spent half the time hauled‐out compared to nonlactating females likely to maximize offspring provisioning. Lactating females show a reduced mean time per dive but greater percentage of time per trip spent diving compared to nonlactating animals. The reduction in time onshore and trip duration, together with modifications in dive performance suggests additional effort of lactating females to compensate for the constraints of rearing a pup, which has not been observed previously due to the lack of simultaneous comparison of lactating and nonlactating individuals. When possible, future studies of maternal investment should also include nonlactating individuals, since lactation may have a strong synergistic effect with other aspects shaping foraging behavior. |
author2 |
Institut chilien de l'Antarctique National Oceanic and Atmospheric Administration |
format |
Article in Journal/Newspaper |
author |
Borras‐Chavez, Renato Goebel, Michael E. Villegas‐Amtmann, Stella Hückstädt, Luis A. Rivera‐Rebella, Carla Costa, Daniel P. Fariña, José M. Bozinovic, Francisco |
author_facet |
Borras‐Chavez, Renato Goebel, Michael E. Villegas‐Amtmann, Stella Hückstädt, Luis A. Rivera‐Rebella, Carla Costa, Daniel P. Fariña, José M. Bozinovic, Francisco |
author_sort |
Borras‐Chavez, Renato |
title |
Time and behavioral adjustments to lactation: Insights from a marine predator |
title_short |
Time and behavioral adjustments to lactation: Insights from a marine predator |
title_full |
Time and behavioral adjustments to lactation: Insights from a marine predator |
title_fullStr |
Time and behavioral adjustments to lactation: Insights from a marine predator |
title_full_unstemmed |
Time and behavioral adjustments to lactation: Insights from a marine predator |
title_sort |
time and behavioral adjustments to lactation: insights from a marine predator |
publisher |
Wiley |
publishDate |
2022 |
url |
http://dx.doi.org/10.1111/mms.12970 https://onlinelibrary.wiley.com/doi/pdf/10.1111/mms.12970 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/mms.12970 https://onlinelibrary.wiley.com/doi/am-pdf/10.1111/mms.12970 |
genre |
Antarc* Antarctic Antarctic Fur Seal |
genre_facet |
Antarc* Antarctic Antarctic Fur Seal |
op_source |
Marine Mammal Science volume 39, issue 1, page 131-150 ISSN 0824-0469 1748-7692 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#am http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/mms.12970 |
container_title |
Marine Mammal Science |
container_volume |
39 |
container_issue |
1 |
container_start_page |
131 |
op_container_end_page |
150 |
_version_ |
1796935785225650176 |