1
|
Fortuna R, Covas R, D'Amelio PB, Silva LR, Parenteau C, Bliard L, Rybak F, Doutrelant C, Paquet M. Interplay of cooperative breeding and predation risk on egg allocation and reproductive output. Behav Ecol 2024; 35:arae010. [PMID: 38486920 PMCID: PMC10939053 DOI: 10.1093/beheco/arae010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Revised: 01/21/2024] [Accepted: 02/27/2024] [Indexed: 03/17/2024] Open
Abstract
Predation risk can influence behavior, reproductive investment, and, ultimately, individuals' fitness. In high-risk environments, females often reduce allocation to reproduction, which can affect offspring phenotype and breeding success. In cooperative breeders, helpers contribute to feed the offspring, and groups often live and forage together. Helpers can, therefore, improve reproductive success, but also influence breeders' condition, stress levels and predation risk. Yet, whether helper presence can buffer the effects of predation risk on maternal reproductive allocation remains unstudied. Here, we used the cooperatively breeding sociable weaver Philetairus socius to test the interactive effects of predation risk and breeding group size on maternal allocation to clutch size, egg mass, yolk mass, and yolk corticosterone. We increased perceived predation risk before egg laying using playbacks of the adults' main predator, gabar goshawk (Micronisus gabar). We also tested the interactive effects of group size and prenatal predator playbacks on offspring hatching and fledging probability. Predator-exposed females laid eggs with 4% lighter yolks, but predator-calls' exposure did not clearly affect clutch size, egg mass, or egg corticosterone levels. Playback-treatment effects on yolk mass were independent of group size, suggesting that helpers' presence did not mitigate predation risk effects on maternal allocation. Although predator-induced reductions in yolk mass may decrease nutrient availability to offspring, potentially affecting their survival, playback-treatment effects on hatching and fledging success were not evident. The interplay between helper presence and predator effects on maternal reproductive investment is still an overlooked area of life history and physiological evolutionary trade-offs that requires further studies.
Collapse
Affiliation(s)
- Rita Fortuna
- CIBIO, Centro de Investigação em Biodiversidade e Recursos Genéticos, InBIO Laboratório Associado, Campus de Vairão, Universidade do Porto, 4485-661, Vairão, Portugal
- Departamento de Biologia, Faculdade de Ciências, Universidade do Porto, 4099-002, Porto, Portugal
- BIOPOLIS Program in Genomics, Biodiversity and Land Planning, CIBIO, Campus de Vairão, 4485-661, Vairão, Portugal
- Centre for Biodiversity Dynamics, Institutt for Biologi, NTNU, 7491, Trondheim, Norway
| | - Rita Covas
- CIBIO, Centro de Investigação em Biodiversidade e Recursos Genéticos, InBIO Laboratório Associado, Campus de Vairão, Universidade do Porto, 4485-661, Vairão, Portugal
- BIOPOLIS Program in Genomics, Biodiversity and Land Planning, CIBIO, Campus de Vairão, 4485-661, Vairão, Portugal
- FitzPatrick Institute, DST-NRF Centre of Excellence, University of Cape Town, 7701, Cape Town, South Africa
| | - Pietro B D'Amelio
- CEFE, Univ Montpellier, CNRS, EPHE, IRD, 34293, Montpellier, France
- Université Paris-Saclay, CNRS, Institut des Neurosciences Paris-Saclay, 91400, Saclay, France
| | - Liliana R Silva
- CIBIO, Centro de Investigação em Biodiversidade e Recursos Genéticos, InBIO Laboratório Associado, Campus de Vairão, Universidade do Porto, 4485-661, Vairão, Portugal
- BIOPOLIS Program in Genomics, Biodiversity and Land Planning, CIBIO, Campus de Vairão, 4485-661, Vairão, Portugal
| | - Charline Parenteau
- Centre d’Etudes Biologiques de Chizé, CNRS-La Rochelle Université, 79360, Villiers-en-Bois, France
| | - Louis Bliard
- Department of Evolutionary Biology & Environmental Studies, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland
| | - Fanny Rybak
- Université Paris-Saclay, CNRS, Institut des Neurosciences Paris-Saclay, 91400, Saclay, France
| | - Claire Doutrelant
- FitzPatrick Institute, DST-NRF Centre of Excellence, University of Cape Town, 7701, Cape Town, South Africa
- CEFE, Univ Montpellier, CNRS, EPHE, IRD, 34293, Montpellier, France
| | - Matthieu Paquet
- Institute of Mathematics of Bordeaux, University of Bordeaux, CNRS, Bordeaux INP, 33405, Talence, France
- Theoretical and Experimental Ecology Station (SETE), CNRS, 09200, Moulis, France
| |
Collapse
|
2
|
Zhang J, Zhang M, Liang W, Geng Z, Chen X. Green tea powder supplementation increased viscosity and decreased lysozyme activity of egg white during storage of eggs from Huainan partridge chicken. Italian Journal of Animal Science 2020. [DOI: 10.1080/1828051x.2020.1769512] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Junzhi Zhang
- College of Animal Science and Technology, Anhui Agricultural University, Hefei, China
| | - Minghui Zhang
- College of Animal Science and Technology, Anhui Agricultural University, Hefei, China
| | - Weiwei Liang
- College of Animal Science and Technology, Anhui Agricultural University, Hefei, China
| | - Zhaoyu Geng
- College of Animal Science and Technology, Anhui Agricultural University, Hefei, China
- Anhui Province Key Laboratory of Local Livestock and Poultry Genetic Resource Conservation and Bio-breeding, Anhui Agricultural University, Hefei, China
| | - Xingyong Chen
- College of Animal Science and Technology, Anhui Agricultural University, Hefei, China
- Anhui Province Key Laboratory of Local Livestock and Poultry Genetic Resource Conservation and Bio-breeding, Anhui Agricultural University, Hefei, China
| |
Collapse
|
3
|
Pei Y, Forstmeier W, Kempenaers B. Offspring performance is well buffered against stress experienced by ancestors. Evolution 2020; 74:1525-1539. [PMID: 32463119 DOI: 10.1111/evo.14026] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Revised: 05/14/2020] [Accepted: 05/17/2020] [Indexed: 11/27/2022]
Abstract
Evolution should render individuals resistant to stress and particularly to stress experienced by ancestors. However, many studies report negative effects of stress experienced by one generation on the performance of subsequent generations. To assess the strength of such transgenerational effects we propose a strategy aimed at overcoming the problem of type I errors when testing multiple proxies of stress in multiple ancestors against multiple offspring performance traits, and we apply it to a large observational dataset on captive zebra finches (Taeniopygia guttata). We combine clear one-tailed hypotheses with steps of validation, meta-analytic summary of mean effect sizes, and independent confirmatory testing. We find that drastic differences in early growth conditions (nestling body mass 8 days after hatching varied sevenfold between 1.7 and 12.4 g) had only moderate direct effects on adult morphology (95% confidence interval [CI]: r = 0.19-0.27) and small direct effects on adult fitness traits (r = 0.02-0.12). In contrast, we found no indirect effects of parental or grandparental condition (r = -0.017 to 0.002; meta-analytic summary of 138 effect sizes), and mixed evidence for small benefits of matching environments between parents and offspring, as the latter was not robust to confirmatory testing in independent datasets. This study shows that evolution has led to a remarkable robustness of zebra finches against undernourishment. Our study suggests that transgenerational effects are absent in this species, because CIs exclude all biologically relevant effect sizes.
Collapse
Affiliation(s)
- Yifan Pei
- Department of Behavioural Ecology and Evolutionary Genetics, Max Planck Institute for Ornithology, Seewiesen, 82319, Germany
| | - Wolfgang Forstmeier
- Department of Behavioural Ecology and Evolutionary Genetics, Max Planck Institute for Ornithology, Seewiesen, 82319, Germany
| | - Bart Kempenaers
- Department of Behavioural Ecology and Evolutionary Genetics, Max Planck Institute for Ornithology, Seewiesen, 82319, Germany
| |
Collapse
|
4
|
Willems E, Decuypere E, Buyse J, Everaert N. Importance of albumen during embryonic development in avian species, with emphasis on domestic chicken. WORLD POULTRY SCI J 2014; 70:503-18. [DOI: 10.1017/s0043933914000567] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
5
|
Valcu CM, Scheltema RA, Schweiggert RM, Valcu M, Teltscher K, Walther DM, Carle R, Kempenaers B. Life history shapes variation in egg composition in the blue tit Cyanistes caeruleus. Commun Biol 2019; 2:6. [PMID: 30740542 PMCID: PMC6320336 DOI: 10.1038/s42003-018-0247-8] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2018] [Accepted: 12/02/2018] [Indexed: 12/26/2022] Open
Abstract
Maternal investment directly shapes early developmental conditions and therefore has long-term fitness consequences for the offspring. In oviparous species prenatal maternal investment is fixed at the time of laying. To ensure the best survival chances for most of their offspring, females must equip their eggs with the resources required to perform well under various circumstances, yet the actual mechanisms remain unknown. Here we describe the blue tit egg albumen and yolk proteomes and evaluate their potential to mediate maternal effects. We show that variation in egg composition (proteins, lipids, carotenoids) primarily depends on laying order and female age. Egg proteomic profiles are mainly driven by laying order, and investment in the egg proteome is functionally biased among eggs. Our results suggest that maternal effects on egg composition result from both passive and active (partly compensatory) mechanisms, and that variation in egg composition creates diverse biochemical environments for embryonic development.
Collapse
Affiliation(s)
- Cristina-Maria Valcu
- Department of Behavioural Ecology and Evolutionary Genetics, Max Planck Institute for Ornithology, 82319 Seewiesen, Germany
| | - Richard A. Scheltema
- Department of Proteomics and Signal Transduction, Max Planck Institute of Biochemistry, 82152 Martinsried, Germany
- Biomolecular Mass Spectrometry and Proteomics, Bijvoet Center for Biomolecular Research and Utrecht Institute for Pharmaceutical Sciences, Utrecht University, 3584 CH Utrecht, The Netherlands
| | - Ralf M. Schweiggert
- Plant Foodstuff Technology and Analysis, Institute of Food Science and Biotechnology, University of Hohenheim, 70599 Stuttgart, Germany
| | - Mihai Valcu
- Department of Behavioural Ecology and Evolutionary Genetics, Max Planck Institute for Ornithology, 82319 Seewiesen, Germany
| | - Kim Teltscher
- Department of Behavioural Ecology and Evolutionary Genetics, Max Planck Institute for Ornithology, 82319 Seewiesen, Germany
| | - Dirk M. Walther
- Department of Proteomics and Signal Transduction, Max Planck Institute of Biochemistry, 82152 Martinsried, Germany
| | - Reinhold Carle
- Plant Foodstuff Technology and Analysis, Institute of Food Science and Biotechnology, University of Hohenheim, 70599 Stuttgart, Germany
- Biological Science Department, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Bart Kempenaers
- Department of Behavioural Ecology and Evolutionary Genetics, Max Planck Institute for Ornithology, 82319 Seewiesen, Germany
| |
Collapse
|
6
|
Affiliation(s)
- Caroline E. Thomson
- Department of Zoology Edward Grey Institute University of Oxford OxfordOX1 3PS UK
| | | |
Collapse
|
7
|
Peña-Villalobos I, Piriz G, Palma V, Sabat P. Energetic Effects of Pre-hatch Albumen Removal on Embryonic Development and Early Ontogeny in Gallus gallus. Front Physiol 2017; 7:690. [PMID: 28119633 PMCID: PMC5222843 DOI: 10.3389/fphys.2016.00690] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2016] [Accepted: 12/26/2016] [Indexed: 12/17/2022] Open
Abstract
Studies on the yolk and albumen content in bird eggs, and the effects of variations in their relative loads in the phenotype of the birds, have revealed multiple consequences at different levels of biological organization, from biochemical traits to behavior. However, little is known about the effect of albumen variation on energetics performance during development and early ontogeny, despite the fact that variation in energy expenditure may have consequences in terms of fitness for both feral and domestic species. In this work, we evaluated experimentally whether variations in the content of albumen of Gallus gallus eggs could generate differences in metabolic rates during embryonic development. Additionally, we assessed changes in the activity of mitochondrial enzymes (cytochrome c oxidase and citrate synthase) in skeletal muscles and liver. Finally, we evaluated the success of hatching of these embryos and their metabolic rates (MR) post-hatching. The results revealed a significant reduction in MR in the last fifth of embryonic life, and reduced catabolic activities in the skeletal muscle of chicks hatched from albumen-removed eggs. However, the same group demonstrated an increase in catabolic activity in the liver, suggesting the existence of changes in energy allocation between tissues. Besides, we found a decrease in hatching success in the albumen-removed group, suggesting a negative effect of the lower albumen content on eggs, possibly due to lower catabolic activities in skeletal muscle. We also found a compensatory phenomenon in the first week after hatching, i.e., birds from albumen-removed eggs did not show a decrease in MR either at thermoneutral temperatures or at 10°C, compared to the control group. Collectively, our data suggest that a reduction in albumen may generate a trade-off between tissue metabolic activities, and may explain the differences in metabolic rates and hatching success, supporting the immediate adaptive response (IAR) hypothesis.
Collapse
Affiliation(s)
- Isaac Peña-Villalobos
- Laboratorio de Ecofisiología Animal, Departamento de Ecología, Universidad de ChileSantiago, Chile
| | - Gabriela Piriz
- Laboratorio de Ecofisiología Animal, Departamento de Ecología, Universidad de ChileSantiago, Chile
| | - Verónica Palma
- Laboratorio de Células troncales y Biología del Desarrollo, Departamento de Biología, Universidad de ChileSantiago, Chile
| | - Pablo Sabat
- Laboratorio de Ecofisiología Animal, Departamento de Ecología, Universidad de ChileSantiago, Chile
- Facultad de Ciencias Biológicas, Center of Applied Ecology and Sustainability, Pontificia Universidad Católica de ChileSantiago, Chile
| |
Collapse
|
8
|
Poisbleau M, Beaulieu M, Dehnhard N, Demongin L, Lepoint G, Sturaro N, Eens M. Extreme intra-clutch egg size dimorphism is not coupled with corresponding differences in antioxidant capacity and stable isotopes between eggs. Comp Biochem Physiol A Mol Integr Physiol 2017; 205:77-85. [PMID: 28062221 DOI: 10.1016/j.cbpa.2016.12.028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2016] [Revised: 12/03/2016] [Accepted: 12/28/2016] [Indexed: 10/20/2022]
Abstract
Oviparous females need to allocate resources optimally to their eggs in order to maximize their fitness. Among these resources, dietary antioxidants, acquired by females and transferred to the eggs during egg formation, can greatly affect the development and survival of the embryo and chick. In crested penguins, incubation starts after the second and last egg is laid and, as opposed to many other bird species, this egg hatches first, thereby enhancing the survival of the chick. Here, we assessed whether antioxidant and isotopic composition could underlie these differences between eggs within clutches of southern rockhopper penguins (Eudyptes chrysocome chrysocome). The second-laid egg had higher total antioxidant capacity than the first-laid egg, although this was not due to higher antioxidant concentration but to its higher mass. This suggests that resources are allocated by females at a constant rate in both eggs within clutches. Accordingly, we found a strong correlation for isotopic compositions between eggs suggesting that resources were allocated similarly to each egg within the clutch. Overall, we found little evidence for a significant role of antioxidant and isotopic compositions to explain differences in terms of embryo/chick development between eggs in crested penguins. However, since our results suggest a constant rate of antioxidant transfer from females to eggs, limiting the mass of the first-laid egg might represent a strategy for females to spare antioxidant defences and preserve self-maintenance.
Collapse
Affiliation(s)
- Maud Poisbleau
- Behavioural Ecology & Ecophysiology Group, Department of Biology, University of Antwerp, Campus Drie Eiken, Universiteitsplein 1, 2610 Antwerp (Wilrijk), Belgium.
| | - Michaël Beaulieu
- Zoological Institute and Museum, University of Greifswald, Johann-Sebastian Bach Str. 11/12, 17489 Greifswald, Germany
| | - Nina Dehnhard
- Behavioural Ecology & Ecophysiology Group, Department of Biology, University of Antwerp, Campus Drie Eiken, Universiteitsplein 1, 2610 Antwerp (Wilrijk), Belgium
| | - Laurent Demongin
- Behavioural Ecology & Ecophysiology Group, Department of Biology, University of Antwerp, Campus Drie Eiken, Universiteitsplein 1, 2610 Antwerp (Wilrijk), Belgium
| | - Gilles Lepoint
- Laboratory of Oceanology, FOCUS UR, University of Liège, B6C, 4000 Liège, Sart Tilman, Belgium
| | - Nicolas Sturaro
- Laboratory of Oceanology, FOCUS UR, University of Liège, B6C, 4000 Liège, Sart Tilman, Belgium
| | - Marcel Eens
- Behavioural Ecology & Ecophysiology Group, Department of Biology, University of Antwerp, Campus Drie Eiken, Universiteitsplein 1, 2610 Antwerp (Wilrijk), Belgium
| |
Collapse
|
9
|
Corti M, Bazzi G, Costanzo A, Podofillini S, Saino N, Rubolini D, Romano A. Behavioural stress response and melanin-based plumage colouration in barn swallow nestlings. BEHAVIOUR 2017. [DOI: 10.1163/1568539x-00003447] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Consistent and correlated inter-individual differences in behaviours, the so-called ‘personalities’, have been identified in many vertebrates. The ability to respond to stressful events is part of personalities and can have important fitness consequences, as it determines how individuals cope with environmental challenges. As a consequence of pleiotropic effects of genes involved in several functions, inter-individual differences in behavioural responses can be associated with phenotypic traits, like melanin-based plumage colouration in birds. We examined the association between three proxies of the behavioural stress response and breast plumage colouration in barn swallow (Hirundo rustica) nestlings. We found that nestling behavioural responses were consistent within individuals and similar among siblings, thus suggesting that these behaviours may contribute to define individual ‘personalities’. However, nestling behavioural stress response was not significantly predicted by variation in breast plumage colouration, indicating that in juveniles of this species melanin-based colouration does not convey to conspecifics reliable information on individual ability to cope with stressful events.
Collapse
Affiliation(s)
- Margherita Corti
- Dipartimento di Scienze e Politiche Ambientali, Università degli Studi di Milano, Via G. Celoria 26, 20133 Milano, Italy
| | - Gaia Bazzi
- Dipartimento di Scienze e Politiche Ambientali, Università degli Studi di Milano, Via G. Celoria 26, 20133 Milano, Italy
| | - Alessandra Costanzo
- Dipartimento di Scienze e Politiche Ambientali, Università degli Studi di Milano, Via G. Celoria 26, 20133 Milano, Italy
| | - Stefano Podofillini
- Dipartimento di Scienze e Politiche Ambientali, Università degli Studi di Milano, Via G. Celoria 26, 20133 Milano, Italy
| | - Nicola Saino
- Dipartimento di Scienze e Politiche Ambientali, Università degli Studi di Milano, Via G. Celoria 26, 20133 Milano, Italy
| | - Diego Rubolini
- Dipartimento di Scienze e Politiche Ambientali, Università degli Studi di Milano, Via G. Celoria 26, 20133 Milano, Italy
| | - Andrea Romano
- Dipartimento di Scienze e Politiche Ambientali, Università degli Studi di Milano, Via G. Celoria 26, 20133 Milano, Italy
| |
Collapse
|
10
|
Javůrková V, Krkavcová E, Kreisinger J, Hyršl P, Hyánková L. Effects of experimentally increased in ovo lysozyme on egg hatchability, chicks complement activity, and phenotype in a precocial bird. ACTA ACUST UNITED AC 2015. [PMID: 26205223 DOI: 10.1002/jez.1935] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
In birds, spectrum of egg white proteins deposited into the egg during its formation are thought to be essential maternal effects. Particularly, egg white lysozyme (LSM), exhibiting great between and within species variability, is considered to be essential for developing avian embryos due to its physiological, antimicrobial, and innate immune defense functions. However, there have been few studies investigating effects of LSM on early post-hatching phenotype, despite its broad physiological and protective role during embryogenesis. Here, we test how experimentally increased concentrations of egg white LSM affect hatchability in Japanese quail (Coturnix japonica) and chick phenotype immediately after hatching (particularly body weight, tarsus length, plasma LSM concentration, and plasma complement activity). Chicks from eggs with increased LSM concentration displayed reduced tarsus length compared to chicks from control eggs while hatchability, body weight and plasma LSM concentration were unaffected. It is worth noting that no effect of increased in ovo lysozyme on eggs hatchability could be related to pathogen-free environment during artificial incubation of experimental eggs causing minimal pressure on embryo viability. While tangible in vivo mechanisms during avian embryogenesis remain to be tested, our study is the first to document experimentally that egg white LSM appears to have growth-regulation role during embryo development, with possible underlying phenotypic consequences in the early post-hatching period in precocial birds.
Collapse
Affiliation(s)
- Veronika Javůrková
- Department of Zoology, Biodiversity Research Group, Faculty of Science, Charles University in Prague, Prague 2, Czech Republic.,The Czech Academy of Sciences, Institute of Vertebrate Biology v.v.i., Brno, Czech Republic
| | - Eva Krkavcová
- Department of Zoology, Biodiversity Research Group, Faculty of Science, Charles University in Prague, Prague 2, Czech Republic
| | - Jakub Kreisinger
- Department of Zoology, Biodiversity Research Group, Faculty of Science, Charles University in Prague, Prague 2, Czech Republic.,Department of Biodiversity and Molecular Ecology, Fondazione Edmund Mach, Research and Innovation Centre, Trentino, Italy
| | - Pavel Hyršl
- Department of Animal Physiology and Immunology, Institute of Experimental Biology, Masaryk University, Brno, Czech Republic
| | - Ludmila Hyánková
- Department of Genetics and breeding of farm animals, Institute of Animal Science, Prague, Czech Republic
| |
Collapse
|
11
|
Affiliation(s)
- Marco Parolini
- Department of Biosciences University of Milan via Celoria 26 I‐20133 Milan Italy
| | - Maria Romano
- Department of Biosciences University of Milan via Celoria 26 I‐20133 Milan Italy
| | - Manuela Caprioli
- Department of Biosciences University of Milan via Celoria 26 I‐20133 Milan Italy
| | - Diego Rubolini
- Department of Biosciences University of Milan via Celoria 26 I‐20133 Milan Italy
| | - Nicola Saino
- Department of Biosciences University of Milan via Celoria 26 I‐20133 Milan Italy
| |
Collapse
|
12
|
Huang HL, Cheng YS. A novel minisequencing single-nucleotide polymorphism marker of the lysozyme gene detects high hatchability of Tsaiya ducks (Anas platyrhynchos). Theriogenology 2014; 82:1113-20. [DOI: 10.1016/j.theriogenology.2014.07.031] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2014] [Revised: 07/16/2014] [Accepted: 07/22/2014] [Indexed: 10/25/2022]
|
13
|
Scandolara C, Lardelli R, Sgarbi G, Caprioli M, Ambrosini R, Rubolini D, Saino N. Context-, phenotype-, and kin-dependent natal dispersal of barn swallows (Hirundo rustica). Behav Ecol 2013. [DOI: 10.1093/beheco/art103] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
|
14
|
Poisbleau M, Dehnhard N, Demongin L, Parenteau C, Quillfeldt P, Eens M. Females paired with new and heavy mates reduce intra-clutch differences in resource allocation. PLoS One 2013; 8:e72136. [PMID: 23967280 PMCID: PMC3744535 DOI: 10.1371/journal.pone.0072136] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2013] [Accepted: 07/05/2013] [Indexed: 11/19/2022] Open
Abstract
Reproductive investment affects both offspring and parental fitness and influences the evolution of life histories. Females may vary their overall primary reproductive effort in relation to the phenotypic characteristics of their mate. However, the effects of male quality on differential resource allocation within clutches have been largely neglected despite the potential implications for mate choice and population dynamics, especially in species exhibiting biparental care and brood reduction. Female southern rockhopper penguins Eudyptes chrysocome paired with heavy mates reduced intra-clutch variation in egg and albumen masses. Females paired with new mates also reduced intra-clutch variation in yolk androgen levels. Since both an increased mass and increased androgen concentrations positively influence chick survival under sibling competition, the chances of fledging the whole clutch are likely to be higher for newly formed pairs with heavy males than for previously formed pairs with light males. Interestingly, total clutch provisioning did not vary with male quality. We show for the first time that females vary intra-clutch variation in resource allocation according to male quality. In species with brood reduction, it may be more adaptive for females to modulate the distribution of resources within the clutch according to breeding conditions, than to change their total clutch provisioning.
Collapse
Affiliation(s)
- Maud Poisbleau
- Department of Biology - Ethology, University of Antwerp, Wilrijk, Belgium.
| | | | | | | | | | | |
Collapse
|
15
|
Everaert N, Métayer-Coustard S, Willemsen H, Han H, Song Z, Ansari Z, Decuypere E, Buyse J, Tesseraud S. The effect of albumen removal before incubation (embryonic protein under-nutrition) on the post-hatch performance, regulators of protein translation activation and proteolysis in neonatal broilers. Br J Nutr 2013; 110:265-74. [PMID: 23237742 DOI: 10.1017/S000711451200503X] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Albumen was removed from broiler eggs before the start of incubation to induce prenatal protein under-nutrition in chicken embryos. With this method, the direct effect of protein deficiency was investigated, differing from mammalian models manipulating the maternal diet where indirect, hormonal effects can interfere. Based on the estimated albumen/egg weight ratio, 10 % of albumen was removed with an 18G needle, after making a hole at the sharp end of the egg with another 18G needle. Eggs were taped thereafter. The sham group underwent the same procedure, except that no albumen was removed. Control eggs did not receive any treatment. The removal of albumen decreased both embryonic and post-hatch body weight up to day 7 compared with the control group. On embryonic day 18, embryos from the albumen-deprived group had higher plasma uric acid levels compared with the sham (P= 0·016) and control (P= 0·009) groups. Moreover, a lower plasma amino acid concentration was observed at hatch compared with the sham (P= 0·038) and control (P= 0·152) groups. These findings indicate an altered protein metabolism. At hatch, a higher mRNA expression of muscle ring finger-1 (MuRF1), a gene related to proteolysis, was observed in albumen-deprived chicks compared with the control and sham chicks, together with an up-regulated expression of atrogin-1 (another atrogene) at this time point in the male protein-deficient chicks. These findings suggest that muscle proteolysis is transiently increased by the removal of albumen before the start of incubation. No evidence was found for altered protein synthesis capacity and translational efficiency in albumen-deprived chicks.
Collapse
|
16
|
|
17
|
Romano A, Ambrosini R, Caprioli M, Bonisoli-Alquati A, Saino N. Secondary sex ratio covaries with demographic trends and ecological conditions in the barn swallow. Evol Ecol 2011. [DOI: 10.1007/s10682-011-9543-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
|
18
|
Saino N, Romano M, Caprioli M, Ambrosini R, Rubolini D, Fasola M. Hatching asynchrony and offspring sex: an experiment on maternal effects in the yellow-legged gull. ETHOL ECOL EVOL 2011. [DOI: 10.1080/03949370.2011.568973] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
19
|
Romano A, Rubolini D, Caprioli M, Boncoraglio G, Ambrosini R, Saino N. Sex-related effects of an immune challenge on growth and begging behavior of barn swallow nestlings. PLoS One 2011; 6:e22805. [PMID: 21818393 PMCID: PMC3144944 DOI: 10.1371/journal.pone.0022805] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2011] [Accepted: 07/05/2011] [Indexed: 11/24/2022] Open
Abstract
Parent-offspring conflicts lead the offspring to evolve reliable signals of individual quality, including parasite burden, which may allow parents to adaptively modulate investment in the progeny. Sex-related variation in offspring reproductive value, however, may entail differential investment in sons and daughters. Here, we experimentally manipulated offspring condition in the barn swallow (Hirundo rustica) by subjecting nestlings to an immune challenge (injection with bacterial lipopolysaccharide, LPS) that simulates a bacterial infection, and assessed the effects on growth, feather quality, expression of morphological (gape coloration) and behavioral (posture) begging displays involved in parent-offspring communication, as well as on food allocation by parents. Compared to sham-injected controls, LPS-treated chicks suffered a depression of body mass and a reduction of palate color saturation. In addition, LPS treatment resulted in lower feather quality, with an increase in the occurrence of fault bars on wing feathers. The color of beak flanges, feather growth and the intensity of postural begging were affected by LPS treatment only in females, suggesting that chicks of either sex are differently susceptible to the immune challenge. However, irrespective of the effects of LPS, parents equally allocated food among control and challenged offspring both under normal food provisioning and after a short period of food deprivation of the chicks. These results indicate that bacterial infection and the associated immune response entail different costs to offspring of either sex, but a decrease in nestling conditions does not affect parental care allocation, possibly because the barn swallow adopts a brood-survival strategy. Finally, we showed that physiological stress induced by pathogens impairs plumage quality, a previously neglected major negative impact of bacterial infection which could severely affect fitness, particularly among long-distance migratory birds.
Collapse
Affiliation(s)
- Andrea Romano
- Dipartimento di Biologia, Università degli Studi di Milano, Milano, Italy.
| | | | | | | | | | | |
Collapse
|
20
|
Guibert F, Richard-Yris MA, Lumineau S, Kotrschal K, Bertin A, Petton C, Möstl E, Houdelier C. Unpredictable mild stressors on laying females influence the composition of Japanese quail eggs and offspring's phenotype. Appl Anim Behav Sci 2011. [DOI: 10.1016/j.applanim.2011.03.012] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
21
|
Bonisoli-alquati A, Rubolini D, Caprioli M, Ambrosini R, Romano M, Saino N. Egg testosterone affects wattle color and trait covariation in the ring-necked pheasant. Behav Ecol Sociobiol 2011; 65:1779-90. [DOI: 10.1007/s00265-011-1186-2] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
22
|
Affiliation(s)
- Miloš Krist
- Museum of Natural History, nám. Republiky 5, 771 73 Olomouc, Czech Republic.
| |
Collapse
|
23
|
Verboven N, Monaghan P, Nager RG, Evans NP. The Effect of Maternal State on the Steroid and Macronutrient Content of Lesser Black-Backed Gull Eggs. Physiol Biochem Zool 2010; 83:1009-22. [DOI: 10.1086/656568] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
|
24
|
Bonisoli-Alquati A, Boncoraglio G, Caprioli M, Saino N. Birth order, individual sex and sex of competitors determine the outcome of conflict among siblings over parental care. Proc Biol Sci 2010; 278:1273-9. [PMID: 20943688 DOI: 10.1098/rspb.2010.1741] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Success in competition for limiting parental resources depends on the interplay between parental decisions over allocation of care and offspring traits. Birth order, individual sex and sex of competing siblings are major candidates as determinants of success in sib-sib competition, but experimental studies focusing on the combined effect of these factors on parent-offspring communication and within-brood competitive dynamics are rare. Here, we assessed individual food intake and body mass gain during feeding trials in barn swallow chicks differing for seniority and sex, and compared the intensity of their acoustic and postural solicitation (begging) displays. Begging intensity and success in competition depended on seniority in combination with individual sex and sex of the opponent. Junior chicks begged more than seniors, independently of satiation level (which was also experimentally manipulated), and obtained greater access to food. Females were generally weaker competitors than males. Individual sex and sex of the opponent also affected duration of begging bouts. Present results thus show that competition with siblings can make the rearing environment variably harsh for developing chicks, depending on individual sex, sex of competing broodmates and age ranking within the nest. They also suggest that parental decisions on the allocation of care and response of kin to signalling siblings may further contribute to the outcome of sibling competition.
Collapse
Affiliation(s)
- Andrea Bonisoli-Alquati
- Dipartimento di Biologia, Università degli Studi di Milano, via Celoria 26, I-20133 Milan, Italy.
| | | | | | | |
Collapse
|
25
|
Saino N, Romano M, Rubolini D, Caprioli M, Ambrosini R, Fasola M. Food supplementation affects egg albumen content and body size asymmetry among yellow-legged gull siblings. Behav Ecol Sociobiol 2010; 64:1813-21. [DOI: 10.1007/s00265-010-0993-1] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
|
26
|
Goerlich VC, Dijkstra C, Groothuis TGG. Effects of in vivo testosterone manipulation on ovarian morphology, follicular development, and follicle yolk testosterone in the homing pigeon. ACTA ACUST UNITED AC 2010; 313:328-38. [DOI: 10.1002/jez.600] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|
27
|
Brewer JH, O'Reilly KM, Buck CL. Effect of nestling status and brood size on concentration of corticosterone of free-living kittiwake chicks. Gen Comp Endocrinol 2010; 166:19-24. [PMID: 19699742 DOI: 10.1016/j.ygcen.2009.08.005] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/01/2008] [Revised: 08/07/2009] [Accepted: 08/15/2009] [Indexed: 10/20/2022]
Abstract
Vertebrates respond to perceived stressors through increased plasma concentrations of glucocorticoids. However, there is considerable variation within and across species in the circumstances and degree to which glucocorticoid levels are elevated. We measured baseline and acute stress-induced levels of corticosterone of free-living, black-legged kittiwake chicks (Rissa tridactyla) across four consecutive breeding seasons in the northern Gulf of Alaska to determine the effect of hatching order and brood size on corticosterone levels of chicks. We sampled 12- to 15-day-old chicks from intact broods (i.e., no brood reduction) at three colonies from 2002-2005 (n=164). Baseline and stress-induced levels of corticosterone did not vary by hatching order or brood size. These results suggest that the adrenocortical function of kittiwake chicks from broods that survive intact through 12-15 days is not affected by either hatching order or brood size.
Collapse
Affiliation(s)
- John H Brewer
- School of Fisheries and Ocean Sciences, University of Alaska Fairbanks, 245 O'Neill Building, Fairbanks, AK 99775, USA.
| | | | | |
Collapse
|
28
|
Bonisoli-Alquati A, Rubolini D, Romano M, Cucco M, Fasola M, Caprioli M, Saino N. Egg antimicrobials, embryo sex and chick phenotype in the yellow-legged gull. Behav Ecol Sociobiol 2010. [DOI: 10.1007/s00265-010-0901-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
|
29
|
Quillfeldt P, McGill RAR, Masello JF, Poisbleau M, van Noordwijk H, Demongin L, Furness RW. Differences in the stable isotope signatures of seabird egg membrane and albumen--implications for non-invasive studies. Rapid Commun Mass Spectrom 2009; 23:3632-3636. [PMID: 19890954 DOI: 10.1002/rcm.4286] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
In many bird species, egg membranes can be obtained non-invasively after the chicks have hatched, and stable isotope analysis of egg membranes can be used to study the diet and foraging distribution of these birds during egg formation. It has been suggested that the enrichment factors of albumen and egg membranes differ for 13C, but are similar for 15N. In this study, we compared carbon and nitrogen stable isotopes of the membranes and albumen of individual eggs of three wild seabird species, the Southern Rockhopper penguin Eudyptes chrysocome, the Imperial shag Phalacrocorax atriceps albiventer, and the Thin-billed prion Pachyptila belcheri. We also included chicken eggs for comparison. Egg membranes were generally enriched in 13C, compared with albumen. The difference varied between species, with 2.1 per thousand in Rockhopper penguins, 1.6 per thousand in Imperial shags, but only 0.5 per thousand in Thin-billed prions and 0.4 per thousand in chicken eggs. Egg membranes were slightly enriched in 15N in Imperial shags (0.9 per thousand) and chickens (0.5 per thousand), compared with albumen, while there was no difference for Thin-billed prions and Rockhopper penguins. The isotopic values of carbon and nitrogen were correlated between albumen and egg membranes of individual eggs, suggesting that egg membranes can be used reliably to investigate trophic differences between individuals, seasons or colonies. Species-specific mathematical corrections could be used to compare results across studies that use different egg components.
Collapse
Affiliation(s)
- Petra Quillfeldt
- Max-Planck-Institut für Ornithologie, Vogelwarte Radolfzell, Schlossallee 2, 78315 Radolfzell, Germany.
| | | | | | | | | | | | | |
Collapse
|
30
|
Krist M. Short- and long-term effects of egg size and feeding frequency on offspring quality in the collared flycatcher (Ficedula albicollis). J Anim Ecol 2009; 78:907-18. [DOI: 10.1111/j.1365-2656.2009.01536.x] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
|
31
|
Poisbleau M, Demongin L, Angelier F, Dano S, Lacroix A, Quillfeldt P. What ecological factors can affect albumen corticosterone levels in the clutches of seabirds? Timing of breeding, disturbance and laying order in rockhopper penguins (Eudyptes chrysocome chrysocome). Gen Comp Endocrinol 2009; 162:139-45. [PMID: 19341737 DOI: 10.1016/j.ygcen.2009.03.022] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/13/2008] [Revised: 03/15/2009] [Accepted: 03/23/2009] [Indexed: 11/24/2022]
Abstract
Female birds deposit corticosterone into their eggs. Elevated concentrations of this hormone may interfere with the development of their offspring, and mothers should thus regulate corticosterone levels deposited into the eggs adaptively. However, if females are unable to regulate deposition, then the corticosterone concentration in eggs should reflect that in female plasma and should be influenced by stressors to the females. We measured corticosterone levels in the albumen of rockhopper penguins, and assessed their relationship with hatching order, human disturbance and laying date. Rockhopper penguins (Eudyptes chrysocome chrysocome) lay two eggs, of which the second egg (B-egg) is larger and hatches faster than the first egg (A-egg). The chick hatching from the B-egg is also much more likely to survive than its sibling. Albumen corticosterone concentrations were lower in B-eggs. However, as B-eggs contained more albumen than A-eggs, the total corticosterone deposited in the albumen was not significantly different between the two eggs. Daily disturbance by human observers during albumen production did not influence albumen corticosterone levels. Laying date had an effect on total albumen corticosterone through a higher albumen mass. However, we observed a high individual component in the composition of eggs from the same clutch. Thus, more work is required to explore the hypotheses of passive versus active transfer to eggs and to understand the adaptive value of contrary effects on the amount and concentration of corticosterone.
Collapse
Affiliation(s)
- M Poisbleau
- Max Planck Institute for Ornithology, Vogelwarte Radolfzell, Radolfzell, Germany.
| | | | | | | | | | | |
Collapse
|
32
|
Dzialowski EM, Reed WL, Sotherland PR. Effects of egg size on Double-crested Cormorant (Phalacrocorax auritus) egg composition and hatchling phenotype. Comp Biochem Physiol A Mol Integr Physiol 2009; 152:262-7. [DOI: 10.1016/j.cbpa.2008.10.014] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2008] [Revised: 10/16/2008] [Accepted: 10/17/2008] [Indexed: 11/30/2022]
|
33
|
Saino N, de Ayala RM, Martinelli R, Boncoraglio G. Male-biased brood sex ratio depresses average phenotypic quality of barn swallow nestlings under experimentally harsh conditions. Oecologia 2008; 156:441-53. [PMID: 18270745 DOI: 10.1007/s00442-008-0971-8] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2007] [Accepted: 12/10/2007] [Indexed: 10/22/2022]
Abstract
Sex allocation strategies are believed to evolve in response to variation in fitness costs and benefits arising from the production of either sex and can be influenced by the differential susceptibility of sons and daughters to environmental conditions. We tested the effects of manipulating brood size and the sex ratio of the nestmates and the effect of sex on the phenotypic quality of individual barn swallow (Hirundo rustica) nestlings. Brood enlargement, which results in harsh rearing conditions, negatively affected the morphology and immunity of the nestlings. However, the negative consequences of brood enlargement were more marked among male than female offspring. In enlarged but not reduced broods, high proportions of male nestmates resulted in lowered individual body mass, body condition and feather growth. Thus, the consequences of a harsh environment on individual nestlings differed between the sexes and depended on the sex ratio among the other nestlings in the brood. The evolution of sex allocation strategies may therefore depend on the sex of individual nestlings but also on an interaction between environment and progeny sex ratio.
Collapse
Affiliation(s)
- Nicola Saino
- Dipartimento di Biologia, Università degli Studi di Milano, via Celoria 26, 20133 Milan, Italy.
| | | | | | | |
Collapse
|
34
|
ROMANO M, CAPRIOLI M, AMBROSINI R, RUBOLINI D, FASOLA M, SAINO N. Maternal allocation strategies and differential effects of yolk carotenoids on the phenotype and viability of yellow-legged gull (Larus michahellis) chicks in relation to sex and laying order. J Evol Biol 2008; 21:1626-40. [DOI: 10.1111/j.1420-9101.2008.01599.x] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
35
|
|
36
|
Shawkey MD, Kosciuch KL, Liu M, Rohwer FC, Loos ER, Wang JM, Beissinger SR. Do birds differentially distribute antimicrobial proteins within clutches of eggs? Behav Ecol 2008. [DOI: 10.1093/beheco/arn019] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
|
37
|
Boncoraglio G, Martinelli R, Saino N. Sex-related asymmetry in competitive ability of sexually monomorphic barn swallow nestlings. Behav Ecol Sociobiol 2007. [DOI: 10.1007/s00265-007-0498-8] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
38
|
|
39
|
ALQUATI ABONISOLI, RUBOLINI D, ROMANO M, BONCORAGLIO G, FASOLA M, SAINO N. Effects of egg albumen removal on yellow-legged gull chick phenotype. Funct Ecol 2007. [DOI: 10.1111/j.1365-2435.2006.01226.x] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
40
|
de Ayala RM, Saino N, Møller AP, Anselmi C. Mouth coloration of nestlings covaries with offspring quality and influences parental feeding behavior. Behav Ecol 2007. [DOI: 10.1093/beheco/arm006] [Citation(s) in RCA: 57] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
|
41
|
Rubolini D, Romano M, Bonisoli Alquati A, Saino N. Early maternal, genetic and environmental components of antioxidant protection, morphology and immunity of yellow-legged gull (Larus michahellis) chicks. J Evol Biol 2006; 19:1571-84. [PMID: 16910986 DOI: 10.1111/j.1420-9101.2006.01121.x] [Citation(s) in RCA: 65] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Maternal effects mediated by egg quality are important sources of offspring phenotypic variation and can influence the course of evolutionary processes. Mothers allocate to the eggs diverse antioxidants that protect the embryo from oxidative stress. In the yellow-legged gull (Larus michahellis), yolk antioxidant capacity varied markedly among clutches and declined considerably with egg laying date. Analysis of bioptic yolk samples from clutches that were subsequently partially cross-fostered revealed a positive effect of yolk antioxidant capacity on embryonic development and chick growth, but not on immunity and begging behaviour, while controlling for parentage and common environment effects. Chick plasma antioxidant capacity varied according to rearing environment, after statistically partitioning out maternal influences mediated by egg quality. Thus, the results of this study indicate that egg antioxidants are important mediators of maternal effects also in wild bird populations, especially during the critical early post-hatching phase.
Collapse
Affiliation(s)
- D Rubolini
- Dipartimento di Biologia Animale, Università degli Studi di Pavia, Pavia, Italy
| | | | | | | |
Collapse
|
42
|
Saino N, Ferrari RP, Romano M, Martinelli R, Lacroix A, Gil D, Møller AP. Maternal allocation of androgens and antagonistic effects of yolk androgens on sons and daughters. Behav Ecol 2005. [DOI: 10.1093/beheco/arj023] [Citation(s) in RCA: 74] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|