Data from: Extreme intraclutch egg-size dimorphism in Eudyptes penguins, an evolutionary response to clutch-size maladaptation ...
Eudyptes penguins (six species) are uniquely characterized by a two-egg clutch with extreme intraclutch egg-size dimorphism (ESD): the first-laid A-egg is 17.5%–56.9% smaller than the B-egg. Although A-eggs are viable, they almost never produce fledged chicks (genus average <1%). Using classical...
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ftdatacite:10.5061/dryad.cd233 2024-01-28T10:01:02+01:00 Data from: Extreme intraclutch egg-size dimorphism in Eudyptes penguins, an evolutionary response to clutch-size maladaptation ... Stein, Robert William Williams, Tony D. 2013 https://dx.doi.org/10.5061/dryad.cd233 https://datadryad.org/stash/dataset/doi:10.5061/dryad.cd233 en eng Dryad https://dx.doi.org/10.1086/670929 Creative Commons Zero v1.0 Universal https://creativecommons.org/publicdomain/zero/1.0/legalcode cc0-1.0 Ecology evolutionary Aptenodytes forsteri Phylogenetics comparative Eudyptes chrysolophus Eudyptes robustus Spheniscidae Spheniscus Magellanicus Pygoscelis antarctica Eudyptes sclateri Pygoscelis adeliae Eudyptes moseleyi Reproduction costs Megadyptes antipodes Life history evolution Eudyptes schlegeli Eudyptes pachyrhynchus Pygoscelis papua Spheniscus humboldti Eudyptula albosignata Spheniscus demersus Eudyptula minor Spheniscus mendiculus Dataset dataset 2013 ftdatacite https://doi.org/10.5061/dryad.cd23310.1086/670929 2024-01-04T15:12:18Z Eudyptes penguins (six species) are uniquely characterized by a two-egg clutch with extreme intraclutch egg-size dimorphism (ESD): the first-laid A-egg is 17.5%–56.9% smaller than the B-egg. Although A-eggs are viable, they almost never produce fledged chicks (genus average <1%). Using classical life-history theory and phylogenetic comparative methods, we demonstrate a marked slowdown in the life history of Eudyptes: age of first reproduction is 52% later and annual fecundity 48% lower compared with other two-egg clutch penguin species. All six Eudyptes species have retained a two-egg clutch, despite this pronounced life-history slowdown; this suggests evolutionary mismatch between clutch size and chicks fledged per clutch. Consistent with this, we show that Eudyptes fledge 43% fewer chicks per clutch than other two-egg clutch penguin species. Extreme intraclutch ESD in Eudyptes is associated primarily with a uniform (5%) increase in relative B-egg size, and B-egg size has evolved in accord with life ... : Life history characteristics of penguin speciesStein and Williams AmNat 53502 Table 1 data.csv ... Dataset Antarc* Antarctica Aptenodytes forsteri Eudyptes chrysolophus Pygoscelis adeliae Pygoscelis antarctica Pygoscelis papua DataCite Metadata Store (German National Library of Science and Technology) |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
Ecology evolutionary Aptenodytes forsteri Phylogenetics comparative Eudyptes chrysolophus Eudyptes robustus Spheniscidae Spheniscus Magellanicus Pygoscelis antarctica Eudyptes sclateri Pygoscelis adeliae Eudyptes moseleyi Reproduction costs Megadyptes antipodes Life history evolution Eudyptes schlegeli Eudyptes pachyrhynchus Pygoscelis papua Spheniscus humboldti Eudyptula albosignata Spheniscus demersus Eudyptula minor Spheniscus mendiculus |
spellingShingle |
Ecology evolutionary Aptenodytes forsteri Phylogenetics comparative Eudyptes chrysolophus Eudyptes robustus Spheniscidae Spheniscus Magellanicus Pygoscelis antarctica Eudyptes sclateri Pygoscelis adeliae Eudyptes moseleyi Reproduction costs Megadyptes antipodes Life history evolution Eudyptes schlegeli Eudyptes pachyrhynchus Pygoscelis papua Spheniscus humboldti Eudyptula albosignata Spheniscus demersus Eudyptula minor Spheniscus mendiculus Stein, Robert William Williams, Tony D. Data from: Extreme intraclutch egg-size dimorphism in Eudyptes penguins, an evolutionary response to clutch-size maladaptation ... |
topic_facet |
Ecology evolutionary Aptenodytes forsteri Phylogenetics comparative Eudyptes chrysolophus Eudyptes robustus Spheniscidae Spheniscus Magellanicus Pygoscelis antarctica Eudyptes sclateri Pygoscelis adeliae Eudyptes moseleyi Reproduction costs Megadyptes antipodes Life history evolution Eudyptes schlegeli Eudyptes pachyrhynchus Pygoscelis papua Spheniscus humboldti Eudyptula albosignata Spheniscus demersus Eudyptula minor Spheniscus mendiculus |
description |
Eudyptes penguins (six species) are uniquely characterized by a two-egg clutch with extreme intraclutch egg-size dimorphism (ESD): the first-laid A-egg is 17.5%–56.9% smaller than the B-egg. Although A-eggs are viable, they almost never produce fledged chicks (genus average <1%). Using classical life-history theory and phylogenetic comparative methods, we demonstrate a marked slowdown in the life history of Eudyptes: age of first reproduction is 52% later and annual fecundity 48% lower compared with other two-egg clutch penguin species. All six Eudyptes species have retained a two-egg clutch, despite this pronounced life-history slowdown; this suggests evolutionary mismatch between clutch size and chicks fledged per clutch. Consistent with this, we show that Eudyptes fledge 43% fewer chicks per clutch than other two-egg clutch penguin species. Extreme intraclutch ESD in Eudyptes is associated primarily with a uniform (5%) increase in relative B-egg size, and B-egg size has evolved in accord with life ... : Life history characteristics of penguin speciesStein and Williams AmNat 53502 Table 1 data.csv ... |
format |
Dataset |
author |
Stein, Robert William Williams, Tony D. |
author_facet |
Stein, Robert William Williams, Tony D. |
author_sort |
Stein, Robert William |
title |
Data from: Extreme intraclutch egg-size dimorphism in Eudyptes penguins, an evolutionary response to clutch-size maladaptation ... |
title_short |
Data from: Extreme intraclutch egg-size dimorphism in Eudyptes penguins, an evolutionary response to clutch-size maladaptation ... |
title_full |
Data from: Extreme intraclutch egg-size dimorphism in Eudyptes penguins, an evolutionary response to clutch-size maladaptation ... |
title_fullStr |
Data from: Extreme intraclutch egg-size dimorphism in Eudyptes penguins, an evolutionary response to clutch-size maladaptation ... |
title_full_unstemmed |
Data from: Extreme intraclutch egg-size dimorphism in Eudyptes penguins, an evolutionary response to clutch-size maladaptation ... |
title_sort |
data from: extreme intraclutch egg-size dimorphism in eudyptes penguins, an evolutionary response to clutch-size maladaptation ... |
publisher |
Dryad |
publishDate |
2013 |
url |
https://dx.doi.org/10.5061/dryad.cd233 https://datadryad.org/stash/dataset/doi:10.5061/dryad.cd233 |
genre |
Antarc* Antarctica Aptenodytes forsteri Eudyptes chrysolophus Pygoscelis adeliae Pygoscelis antarctica Pygoscelis papua |
genre_facet |
Antarc* Antarctica Aptenodytes forsteri Eudyptes chrysolophus Pygoscelis adeliae Pygoscelis antarctica Pygoscelis papua |
op_relation |
https://dx.doi.org/10.1086/670929 |
op_rights |
Creative Commons Zero v1.0 Universal https://creativecommons.org/publicdomain/zero/1.0/legalcode cc0-1.0 |
op_doi |
https://doi.org/10.5061/dryad.cd23310.1086/670929 |
_version_ |
1789325710892990464 |