The relationship between offspring size and performance in the sea

The American Naturalist
Dustin J Marshall, Michael J Keough

Abstract

The historical focus on offspring size has been to explain variation among populations, but there have been few attempts to determine whether variation is greatest at population scale. Offspring size variation is typically viewed as an adaptive response to changes in the relationship between offspring size and performance, yet direct tests remain elusive. We partitioned natural variation in offspring size for a marine invertebrate, Watersipora subtorquata, at a range of spatial and temporal scales across southeastern Australia, and we estimated the relationship between offspring size and performance at each population and time. There was significant variation in offspring size among populations, but regional differences explained only approximately 25% of the observed variation, suggesting that there should be a greater focus on small-scale variation in offspring size. We used our data to parameterize an optimality model to generate predictions of offspring size among different populations and times. Differences in the relationship between offspring size and postmetamorphic performance (and therefore changes in size of offspring that were predicted to maximize maternal fitness) among populations and times were associated with d...Continue Reading

References

Dec 1, 1979·Theoretical Population Biology·F B Christiansen, T M Fenchel
Mar 15, 2003·Science·Daniel D HeathCharles W Fox
Mar 21, 2003·Oecologia·Frederik HendrickxNico M Van Straalen
Aug 19, 2008·The American Naturalist·S Sakai, Y Harada
Oct 1, 2006·Integrative and Comparative Biology·Dustin J Marshall, Michael J Keough

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Citations

May 12, 2011·Integrative and Comparative Biology·Stephanie J KamelRichard K Grosberg
Apr 22, 2011·The American Naturalist·Christian JørgensenDavid N Reznick
Jun 20, 2013·The American Naturalist·Njal Rollinson, Jeffrey A Hutchings
May 23, 2013·Ecology·Njal Rollinson, Jeffrey A Hutchings
Mar 28, 2009·Ecology·Dustin J Marshall, Michael J Keough
May 30, 2012·Aquatic Toxicology·Ceri Lewis, Alex T Ford
Nov 3, 2009·Evolution & Development·Nicholas J Alcorn, Jonathan D Allen
May 12, 2010·Evolution; International Journal of Organic Evolution·Darren W JohnsonJessica Moye
Feb 9, 2012·The Journal of Animal Ecology·John R MorrongielloBob B M Wong
Jan 22, 2011·The Journal of Animal Ecology·Scott C Burgess, Dustin J Marshall
Mar 24, 2015·Ecology and Evolution·Zhao SunAnnie Mercier
Nov 13, 2015·Proceedings. Biological Sciences·Amanda K PettersenDustin J Marshall
Aug 26, 2015·Ecology and Evolution·Rose E O'DeaMichael D Jennions
Feb 8, 2011·Environmental Research·Louise A McKenzieEmma L Johnston
Jun 10, 2017·Developmental Dynamics : an Official Publication of the American Association of Anatomists·Milan VrtílekMartin Reichard
Jan 13, 2018·Ecology and Evolution·Hong-Liang LuWei-Guo Du
Jul 18, 2019·Evolution; International Journal of Organic Evolution·Hayley Cameron, Dustin J Marshall
Sep 6, 2019·Evolution; International Journal of Organic Evolution·Njal RollinsonLocke Rowe
Mar 1, 2014·The Journal of Animal Ecology·Kurt Davis, Dustin J Marshall
Jan 30, 2013·Evolution; International Journal of Organic Evolution·Dustin J Marshall, Keyne Monro
Nov 3, 2010·The Journal of Experimental Biology·Celeste BowndsDustin J Marshall

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