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dc.contributor.author
Marchisio, Nahuel Matías
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dc.contributor.author
Barrionuevo, Melina
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dc.contributor.author
Frere, Esteban
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dc.date.available
2022-05-16T20:13:50Z
dc.date.issued
2021-07
dc.identifier.citation
Marchisio, Nahuel Matías; Barrionuevo, Melina; Frere, Esteban; Compensatory effect of egg size dimorphism on hatching asynchrony in Magellanic penguin; Wiley Blackwell Publishing, Inc; Journal Of Avian Biology; 52; 10; 7-2021; 1-10
dc.identifier.issn
0908-8857
dc.identifier.uri
http://hdl.handle.net/11336/157689
dc.description.abstract
Egg laying is one of the most important phases in a female bird’s breeding cycle. Its cost is high because eggs contain all the resources needed for the development of an embryo. Variation in size and quality of eggs can have important long-term consequences for offspring survival. Hatching asynchrony is known to influence sibling competition in many bird species. Last-hatched chicks will have a competitive disadvantage throughout the pre-fledgling period because they are smaller. The aim of this study was to analyze the effect of hatching asynchrony and egg size variation on the growth and fledging success of Magellanic penguin Spheniscus magellanicus chicks after disentangling the effects of parental condition. We simultaneously manipulated egg size dimorphism, hatching asynchrony and parental condition by performing a cross-fostering experiment, creating broods with controlled egg size dimorphism and hatching asynchrony in a colony of Magellanic penguins located in Isla Quiroga, Santa Cruz, Argentina. We found that hatching asynchrony had a negative effect on lasthatched chicks, but this disadvantage was mitigated by egg size dimorphism in their favor. Moreover, females in good condition invest more in second than in first chicks, which, added to a greater investment by foster fathers, leading to offspring fledging in good condition. On the contrary, for the first-hatched chicks, we found that body condition of the biological father was an important factor for their growth. We conclude that raising more than one chick seems to be a decision based on parental condition throughout the breeding season.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Wiley Blackwell Publishing, Inc
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dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by/2.5/ar/
dc.subject
COMPENSATION OF METERNAL EFFECTS
dc.subject
EGG SIZE DIMORPHISM
dc.subject
HATCHING ASYNCHRONY
dc.subject
MAGELLANIC PENGUIN
dc.subject
PARENTAL BODY CONDITION
dc.subject
SEABIRD
dc.subject.classification
Biología
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dc.subject.classification
Ciencias Biológicas
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
Compensatory effect of egg size dimorphism on hatching asynchrony in Magellanic penguin
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2022-05-09T20:27:17Z
dc.journal.volume
52
dc.journal.number
10
dc.journal.pagination
1-10
dc.journal.pais
Reino Unido
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dc.journal.ciudad
Londres
dc.description.fil
Fil: Marchisio, Nahuel Matías. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de la Patagonia Austral. Unidad Académica Caleta Olivia. Centro de Investigaciones Puerto Deseado; Argentina
dc.description.fil
Fil: Barrionuevo, Melina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigaciones en Biodiversidad y Medioambiente. Universidad Nacional del Comahue. Centro Regional Universidad Bariloche. Instituto de Investigaciones en Biodiversidad y Medioambiente; Argentina
dc.description.fil
Fil: Frere, Esteban. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de la Patagonia Austral. Unidad Académica Caleta Olivia. Centro de Investigaciones Puerto Deseado; Argentina. Wildlife Conservation Society; Estados Unidos
dc.journal.title
Journal Of Avian Biology
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1111/jav.02673
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/10.1111/jav.02673
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