Nutritional status and prey energy density govern reproductive success in a small cetacean

Abstract A variety of mammals suppress reproduction when they experience poor physical condition or environmental harshness. In many marine mammal species, reproductive impairment has been correlated to polychlorinated biphenyls (PCBs), the most frequently measured chemical pollutants, while the rel...

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Autores principales:	Lonneke L. IJsseldijk, Sanne Hessing, Amy Mairo, Mariel T. I. ten Doeschate, Jelle Treep, Jan van den Broek, Guido O. Keijl, Ursula Siebert, Hans Heesterbeek, Andrea Gröne, Mardik F. Leopold
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/22511ee2d7944a82891bf0f267bbb82f
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spelling	oai:doaj.org-article:22511ee2d7944a82891bf0f267bbb82f2021-11-08T10:52:01ZNutritional status and prey energy density govern reproductive success in a small cetacean10.1038/s41598-021-98629-x2045-2322https://doaj.org/article/22511ee2d7944a82891bf0f267bbb82f2021-11-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-98629-xhttps://doaj.org/toc/2045-2322Abstract A variety of mammals suppress reproduction when they experience poor physical condition or environmental harshness. In many marine mammal species, reproductive impairment has been correlated to polychlorinated biphenyls (PCBs), the most frequently measured chemical pollutants, while the relative importance of other factors remains understudied. We investigate whether reproductively active females abandon investment in their foetus when conditions are poor, exemplified using an extensively studied cetacean species; the harbour porpoise (Phocoena phocoena). Data on disease, fat and muscle mass and diet obtained from necropsies in The Netherlands were used as proxies of health and nutritional status and related to pregnancy and foetal growth. This was combined with published life history parameters for 16 other areas to correlate to parameters reflecting environmental condition: mean energy density of prey constituting diets (MEDD), cumulative human impact and PCB contamination. Maternal nutritional status had significant effects on foetal size and females in poor health had lower probabilities of being pregnant and generally did not sustain pregnancy throughout gestation. Pregnancy rates across the Northern Hemisphere were best explained by MEDD. We demonstrate the importance of having undisturbed access to prey with high energy densities in determining reproductive success and ultimately population size for small cetaceans.Lonneke L. IJsseldijkSanne HessingAmy MairoMariel T. I. ten DoeschateJelle TreepJan van den BroekGuido O. KeijlUrsula SiebertHans HeesterbeekAndrea GröneMardik F. LeopoldNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-13 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Lonneke L. IJsseldijk Sanne Hessing Amy Mairo Mariel T. I. ten Doeschate Jelle Treep Jan van den Broek Guido O. Keijl Ursula Siebert Hans Heesterbeek Andrea Gröne Mardik F. Leopold Nutritional status and prey energy density govern reproductive success in a small cetacean
description	Abstract A variety of mammals suppress reproduction when they experience poor physical condition or environmental harshness. In many marine mammal species, reproductive impairment has been correlated to polychlorinated biphenyls (PCBs), the most frequently measured chemical pollutants, while the relative importance of other factors remains understudied. We investigate whether reproductively active females abandon investment in their foetus when conditions are poor, exemplified using an extensively studied cetacean species; the harbour porpoise (Phocoena phocoena). Data on disease, fat and muscle mass and diet obtained from necropsies in The Netherlands were used as proxies of health and nutritional status and related to pregnancy and foetal growth. This was combined with published life history parameters for 16 other areas to correlate to parameters reflecting environmental condition: mean energy density of prey constituting diets (MEDD), cumulative human impact and PCB contamination. Maternal nutritional status had significant effects on foetal size and females in poor health had lower probabilities of being pregnant and generally did not sustain pregnancy throughout gestation. Pregnancy rates across the Northern Hemisphere were best explained by MEDD. We demonstrate the importance of having undisturbed access to prey with high energy densities in determining reproductive success and ultimately population size for small cetaceans.
format	article
author	Lonneke L. IJsseldijk Sanne Hessing Amy Mairo Mariel T. I. ten Doeschate Jelle Treep Jan van den Broek Guido O. Keijl Ursula Siebert Hans Heesterbeek Andrea Gröne Mardik F. Leopold
author_facet	Lonneke L. IJsseldijk Sanne Hessing Amy Mairo Mariel T. I. ten Doeschate Jelle Treep Jan van den Broek Guido O. Keijl Ursula Siebert Hans Heesterbeek Andrea Gröne Mardik F. Leopold
author_sort	Lonneke L. IJsseldijk
title	Nutritional status and prey energy density govern reproductive success in a small cetacean
title_short	Nutritional status and prey energy density govern reproductive success in a small cetacean
title_full	Nutritional status and prey energy density govern reproductive success in a small cetacean
title_fullStr	Nutritional status and prey energy density govern reproductive success in a small cetacean
title_full_unstemmed	Nutritional status and prey energy density govern reproductive success in a small cetacean
title_sort	nutritional status and prey energy density govern reproductive success in a small cetacean
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/22511ee2d7944a82891bf0f267bbb82f
work_keys_str_mv	AT lonnekelijsseldijk nutritionalstatusandpreyenergydensitygovernreproductivesuccessinasmallcetacean AT sannehessing nutritionalstatusandpreyenergydensitygovernreproductivesuccessinasmallcetacean AT amymairo nutritionalstatusandpreyenergydensitygovernreproductivesuccessinasmallcetacean AT marieltitendoeschate nutritionalstatusandpreyenergydensitygovernreproductivesuccessinasmallcetacean AT jelletreep nutritionalstatusandpreyenergydensitygovernreproductivesuccessinasmallcetacean AT janvandenbroek nutritionalstatusandpreyenergydensitygovernreproductivesuccessinasmallcetacean AT guidookeijl nutritionalstatusandpreyenergydensitygovernreproductivesuccessinasmallcetacean AT ursulasiebert nutritionalstatusandpreyenergydensitygovernreproductivesuccessinasmallcetacean AT hansheesterbeek nutritionalstatusandpreyenergydensitygovernreproductivesuccessinasmallcetacean AT andreagrone nutritionalstatusandpreyenergydensitygovernreproductivesuccessinasmallcetacean AT mardikfleopold nutritionalstatusandpreyenergydensitygovernreproductivesuccessinasmallcetacean
_version_	1718442502474694656

Nutritional status and prey energy density govern reproductive success in a small cetacean

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