Data from: Unpredictable perturbation reduces breeding propensity regardless of pre-laying reproductive readiness in a partial capital breeder
Theoretically, individuals of migratory species should optimize reproductive investment based on a combination of timing of and body condition at arrival on the breeding grounds. A minimum threshold body mass is required to initiate reproduction, and the timing of reaching this threshold is critical...
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ftdans:oai:easy.dans.knaw.nl:easy-dataset:93425 2023-07-02T03:31:33+02:00 Data from: Unpredictable perturbation reduces breeding propensity regardless of pre-laying reproductive readiness in a partial capital breeder Legagneux, Pierre Hennin, Holly L. Gilchrist, H. Grant Williams, Tony D. Love, Oliver P. Bêty, Joël 2016-06-06T19:50:20.000+02:00 http://nbn-resolving.org/urn:nbn:nl:ui:13-p0-wgx6 https://easy.dans.knaw.nl/ui/datasets/id/easy-dataset:93425 unknown doi:10.5061/dryad.7k3p2/1 doi:10.1111/jav.00824 http://nbn-resolving.org/urn:nbn:nl:ui:13-p0-wgx6 doi:10.5061/dryad.7k3p2 https://easy.dans.knaw.nl/ui/datasets/id/easy-dataset:93425 OPEN_ACCESS: The data are archived in Easy, they are accessible elsewhere through the DOI https://dans.knaw.nl/en/about/organisation-and-policy/legal-information/DANSLicence.pdf Life sciences medicine and health care 2016 ftdans https://doi.org/10.5061/dryad.7k3p2/110.1111/jav.0082410.5061/dryad.7k3p2 2023-06-13T13:21:50Z Theoretically, individuals of migratory species should optimize reproductive investment based on a combination of timing of and body condition at arrival on the breeding grounds. A minimum threshold body mass is required to initiate reproduction, and the timing of reaching this threshold is critical because of the trade-off between delaying breeding to gain in condition against the declining value of offspring with later reproductive timing. Long-lived species have the flexibility within their life history to skip reproduction in a given year if they are unable to achieve this theoretical mass threshold. Although the decision to breed or not is an important parameter influencing population dynamics, the mechanisms underlying this decision are poorly understood. Here, we mimicked an unpredictable environmental perturbation that induced a reduction in body mass of Arctic pre-breeding (before the laying period) female common eiders (Somateria mollissima; a long-lived migratory seaduck) while controlling for individual variation in the pre-laying physiological reproductive readiness via vitellogenin (VTG) - a yolk-targeted lipoprotein. Our aim was to causally determine the interaction between body condition and pre-laying reproductive readiness (VTG) on breeding propensity by experimentally reducing body mass in treatment females. We first demonstrated that arrival body condition was a key driver of breeding propensity. Secondly, we found treatment and VTG levels interacted to influence breeding propensity, indicating that our experimental manipulation, mimicking an unpredictable food shortage, reduced breeding propensity, regardless of the degree of pre-laying physiological reproductive readiness (i.e., timing of ovarian follicles recruitment). Our experiment demonstrates that momentary environmental perturbations during the pre-breeding period can strongly affect the decision to breed, a key parameter driving population dynamics. Other/Unknown Material Arctic Somateria mollissima Data Archiving and Networked Services (DANS): EASY (KNAW - Koninklijke Nederlandse Akademie van Wetenschappen) Arctic |
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Open Polar |
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Data Archiving and Networked Services (DANS): EASY (KNAW - Koninklijke Nederlandse Akademie van Wetenschappen) |
op_collection_id |
ftdans |
language |
unknown |
topic |
Life sciences medicine and health care |
spellingShingle |
Life sciences medicine and health care Legagneux, Pierre Hennin, Holly L. Gilchrist, H. Grant Williams, Tony D. Love, Oliver P. Bêty, Joël Data from: Unpredictable perturbation reduces breeding propensity regardless of pre-laying reproductive readiness in a partial capital breeder |
topic_facet |
Life sciences medicine and health care |
description |
Theoretically, individuals of migratory species should optimize reproductive investment based on a combination of timing of and body condition at arrival on the breeding grounds. A minimum threshold body mass is required to initiate reproduction, and the timing of reaching this threshold is critical because of the trade-off between delaying breeding to gain in condition against the declining value of offspring with later reproductive timing. Long-lived species have the flexibility within their life history to skip reproduction in a given year if they are unable to achieve this theoretical mass threshold. Although the decision to breed or not is an important parameter influencing population dynamics, the mechanisms underlying this decision are poorly understood. Here, we mimicked an unpredictable environmental perturbation that induced a reduction in body mass of Arctic pre-breeding (before the laying period) female common eiders (Somateria mollissima; a long-lived migratory seaduck) while controlling for individual variation in the pre-laying physiological reproductive readiness via vitellogenin (VTG) - a yolk-targeted lipoprotein. Our aim was to causally determine the interaction between body condition and pre-laying reproductive readiness (VTG) on breeding propensity by experimentally reducing body mass in treatment females. We first demonstrated that arrival body condition was a key driver of breeding propensity. Secondly, we found treatment and VTG levels interacted to influence breeding propensity, indicating that our experimental manipulation, mimicking an unpredictable food shortage, reduced breeding propensity, regardless of the degree of pre-laying physiological reproductive readiness (i.e., timing of ovarian follicles recruitment). Our experiment demonstrates that momentary environmental perturbations during the pre-breeding period can strongly affect the decision to breed, a key parameter driving population dynamics. |
author |
Legagneux, Pierre Hennin, Holly L. Gilchrist, H. Grant Williams, Tony D. Love, Oliver P. Bêty, Joël |
author_facet |
Legagneux, Pierre Hennin, Holly L. Gilchrist, H. Grant Williams, Tony D. Love, Oliver P. Bêty, Joël |
author_sort |
Legagneux, Pierre |
title |
Data from: Unpredictable perturbation reduces breeding propensity regardless of pre-laying reproductive readiness in a partial capital breeder |
title_short |
Data from: Unpredictable perturbation reduces breeding propensity regardless of pre-laying reproductive readiness in a partial capital breeder |
title_full |
Data from: Unpredictable perturbation reduces breeding propensity regardless of pre-laying reproductive readiness in a partial capital breeder |
title_fullStr |
Data from: Unpredictable perturbation reduces breeding propensity regardless of pre-laying reproductive readiness in a partial capital breeder |
title_full_unstemmed |
Data from: Unpredictable perturbation reduces breeding propensity regardless of pre-laying reproductive readiness in a partial capital breeder |
title_sort |
data from: unpredictable perturbation reduces breeding propensity regardless of pre-laying reproductive readiness in a partial capital breeder |
publishDate |
2016 |
url |
http://nbn-resolving.org/urn:nbn:nl:ui:13-p0-wgx6 https://easy.dans.knaw.nl/ui/datasets/id/easy-dataset:93425 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Somateria mollissima |
genre_facet |
Arctic Somateria mollissima |
op_relation |
doi:10.5061/dryad.7k3p2/1 doi:10.1111/jav.00824 http://nbn-resolving.org/urn:nbn:nl:ui:13-p0-wgx6 doi:10.5061/dryad.7k3p2 https://easy.dans.knaw.nl/ui/datasets/id/easy-dataset:93425 |
op_rights |
OPEN_ACCESS: The data are archived in Easy, they are accessible elsewhere through the DOI https://dans.knaw.nl/en/about/organisation-and-policy/legal-information/DANSLicence.pdf |
op_doi |
https://doi.org/10.5061/dryad.7k3p2/110.1111/jav.0082410.5061/dryad.7k3p2 |
_version_ |
1770270922717003776 |