Different tactics, one goal: initial reproductive investments of males and females in a small Arctic seabird
Despite a great number of studies on extra-pair paternity in birds, the actual roles of males and females in extra-pair contacts is poorly understood, as detailed behavioural studies comparing the reproductive performance of the two sexes prior to egg laying are relatively scarce. Here, we investiga...
Published in: | Behavioral Ecology and Sociobiology |
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ftpubmed:oai:pubmedcentral.nih.gov:4133023 2023-05-15T13:16:19+02:00 Different tactics, one goal: initial reproductive investments of males and females in a small Arctic seabird Wojczulanis-Jakubas, Katarzyna Jakubas, Dariusz Chastel, Olivier 2014-07-04 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4133023 https://doi.org/10.1007/s00265-014-1761-4 en eng Springer Berlin Heidelberg http://www.ncbi.nlm.nih.gov/pmc/articles/PMC http://dx.doi.org/10.1007/s00265-014-1761-4 © The Author(s) 2014 Open Access This article is distributed under the terms of the Creative Commons Attribution License which permits any use, distribution, and reproduction in any medium, provided the original author(s) and the source are credited. CC-BY Original Paper Text 2014 ftpubmed https://doi.org/10.1007/s00265-014-1761-4 2014-08-24T00:51:33Z Despite a great number of studies on extra-pair paternity in birds, the actual roles of males and females in extra-pair contacts is poorly understood, as detailed behavioural studies comparing the reproductive performance of the two sexes prior to egg laying are relatively scarce. Here, we investigated mating behaviour (copulations and aggressive interactions), time budget and body condition (size-adjusted body mass and baseline corticosterone level) in the little auk (Alle alle), a monogamous and highly colonial, Arctic seabird. We performed the study in a large breeding colony of the little auk in Hornsund (Spitsbergen). We found that the males frequently attempted extra-pair copulations (EPCs), although these contacts were almost always unsuccessful, mostly because of the females’ rejection behaviour. These results clearly indicate that genetic monogamy is maintained through female control. Nevertheless, males tried to protect their paternity by staying in close proximity to their females and aggressively intervening when their mates became involved in EPCs. Compared to females, males also spent more time in the colony guarding nest sites. Despite the apparent sex differences in the time budget and frequency of aggressive interactions, body condition was similar in the two sexes, indicating comparable parental investments during the mating period. Text Alle alle Arctic Hornsund little auk Spitsbergen PubMed Central (PMC) Arctic Hornsund ENVELOPE(15.865,15.865,76.979,76.979) Behavioral Ecology and Sociobiology 68 9 1521 1530 |
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Original Paper |
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Original Paper Wojczulanis-Jakubas, Katarzyna Jakubas, Dariusz Chastel, Olivier Different tactics, one goal: initial reproductive investments of males and females in a small Arctic seabird |
topic_facet |
Original Paper |
description |
Despite a great number of studies on extra-pair paternity in birds, the actual roles of males and females in extra-pair contacts is poorly understood, as detailed behavioural studies comparing the reproductive performance of the two sexes prior to egg laying are relatively scarce. Here, we investigated mating behaviour (copulations and aggressive interactions), time budget and body condition (size-adjusted body mass and baseline corticosterone level) in the little auk (Alle alle), a monogamous and highly colonial, Arctic seabird. We performed the study in a large breeding colony of the little auk in Hornsund (Spitsbergen). We found that the males frequently attempted extra-pair copulations (EPCs), although these contacts were almost always unsuccessful, mostly because of the females’ rejection behaviour. These results clearly indicate that genetic monogamy is maintained through female control. Nevertheless, males tried to protect their paternity by staying in close proximity to their females and aggressively intervening when their mates became involved in EPCs. Compared to females, males also spent more time in the colony guarding nest sites. Despite the apparent sex differences in the time budget and frequency of aggressive interactions, body condition was similar in the two sexes, indicating comparable parental investments during the mating period. |
format |
Text |
author |
Wojczulanis-Jakubas, Katarzyna Jakubas, Dariusz Chastel, Olivier |
author_facet |
Wojczulanis-Jakubas, Katarzyna Jakubas, Dariusz Chastel, Olivier |
author_sort |
Wojczulanis-Jakubas, Katarzyna |
title |
Different tactics, one goal: initial reproductive investments of males and females in a small Arctic seabird |
title_short |
Different tactics, one goal: initial reproductive investments of males and females in a small Arctic seabird |
title_full |
Different tactics, one goal: initial reproductive investments of males and females in a small Arctic seabird |
title_fullStr |
Different tactics, one goal: initial reproductive investments of males and females in a small Arctic seabird |
title_full_unstemmed |
Different tactics, one goal: initial reproductive investments of males and females in a small Arctic seabird |
title_sort |
different tactics, one goal: initial reproductive investments of males and females in a small arctic seabird |
publisher |
Springer Berlin Heidelberg |
publishDate |
2014 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4133023 https://doi.org/10.1007/s00265-014-1761-4 |
long_lat |
ENVELOPE(15.865,15.865,76.979,76.979) |
geographic |
Arctic Hornsund |
geographic_facet |
Arctic Hornsund |
genre |
Alle alle Arctic Hornsund little auk Spitsbergen |
genre_facet |
Alle alle Arctic Hornsund little auk Spitsbergen |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC http://dx.doi.org/10.1007/s00265-014-1761-4 |
op_rights |
© The Author(s) 2014 Open Access This article is distributed under the terms of the Creative Commons Attribution License which permits any use, distribution, and reproduction in any medium, provided the original author(s) and the source are credited. |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1007/s00265-014-1761-4 |
container_title |
Behavioral Ecology and Sociobiology |
container_volume |
68 |
container_issue |
9 |
container_start_page |
1521 |
op_container_end_page |
1530 |
_version_ |
1766273475778969600 |