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Littérature scientifique sur le sujet « Oiseaux – Reproduction (biologie) »
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Articles de revues sur le sujet "Oiseaux – Reproduction (biologie)"
BLESBOIS, E. « Gamètes et fécondation chez les oiseaux ». INRAE Productions Animales 24, no 3 (7 juillet 2011) : 259–72. http://dx.doi.org/10.20870/productions-animales.2011.24.3.3260.
Texte intégralMouly, V., M. Lemonnier, D. Libri et MY Fiszman. « TRANSFORMATION ET CLONAGE DES MYOBLASTES AU COURS DU DEVELOPPEMENT CHEZ LES OISEAUX ». Reproduction Nutrition Développement 29, Suppl. 1 (1989) : 32. http://dx.doi.org/10.1051/rnd:19890753.
Texte intégralBrillard, JP. « Stockage des spermatozoïdes dans l'oviducte chez les oiseaux : approche morphologique, histologique et fonctionnelle ». Reproduction Nutrition Développement 30, no 2 (1990) : 161–74. http://dx.doi.org/10.1051/rnd:19900202.
Texte intégralMOULY, V., et M. Y. FISZMAN. « Plusieurs classes de myoblastes participent à la formation des muscles du squelette chez les oiseaux ». Reproduction Nutrition Développement 28, no 3B (1988) : 687–92. http://dx.doi.org/10.1051/rnd:19880502.
Texte intégralPeña, Carlos, Elier Córdova, Lee Newsom, Nils Navarro, Sergio Sigarreta et Gerardo Begué. « Distribution and abundance of the Giant Kingbird (<em>Tyrannus cubensis</em>) in eastern Cuba ». Journal of Caribbean Ornithology 30, no 1 (16 décembre 2017) : 10–23. http://dx.doi.org/10.55431/jco.2017.30(1).10-23.
Texte intégralGUY, G., et L. FORTUN-LAMOTHE. « Avant-propos ». INRAE Productions Animales 26, no 5 (19 décembre 2013) : 387–90. http://dx.doi.org/10.20870/productions-animales.2013.26.5.3167.
Texte intégralThèses sur le sujet "Oiseaux – Reproduction (biologie)"
Angelier, Frédéric. « Age et reproduction chez les oiseaux marins : mécanismes hormonaux impliqués dans les décisions de reproduction ». Poitiers, 2006. http://www.theses.fr/2006POIT2328.
Texte intégralBreeding success increases with age in many organisms, but the physiological mechanisms underlying this pattern are poorly known. The aim of this dissertation is to explore the influence of age on hormonal mechanisms involved in the regulation of parental behaviour, allostasis and stress response (corticosterone and prolactin) in seabirds. The use of ongoing long-term mark-recapture programme allowed us to show that age and especially breeding experience influence baseline hormones levels and the sensitivity to stressors. We were able to describe the first hormonal correlates of senescence. We showed the role of corticosterone, which in interaction with body condition, mediates foraging decisions and allocations processes. Our data strongly suggest that variations in baseline corticosterone levels and the ability to maintain a threshold levels of prolactin during a stressful situation may be an important physiological mechanism involved in the improvement of reproductive performance with advancing age. These findings are discussed in the light of current the evolutionary theories addressing the effect of age and experience on reproductive success
Garcia-Fernandez, Violaine. « Qualité du partenaire et qualité de l'œuf chez les oiseaux ». Thesis, Paris 10, 2009. http://www.theses.fr/2009PA100194/document.
Texte intégralThe study concerns female birds' allocation of resources into bird eggs as a function of characteristics of the males. The data collected are the number of eggs and the eggs' characteristics (mass, volume, component mass, yolk testosterone concentration). The manipulated characteristics of the partner are female preference, male social status and song quality. Three experiments were conducted on the domesticated canary (Serinus canaria) in laboratory conditions, with the LECC of the University Paris Ouest Nanterre La Défense (France). Two other experiments were conducted on the grey partridge (Perdix perdix) in a semi-natural environment, at the DISAV of the University degli Studi del Piemonte Orientale (Italy). We found a positive effect of female preference and male social status on yolk mass in the canary. With extra yolk, hatchlings can continue their development even if they are not fed in the first few days after hatching. In the partridge, the positive effect was in yolk testosterone concentration. Increased testosterone level can help precocial chicks compete with neighbouring chicks. Female canaries exposed to artificially enhanced songs laid larger and heavier eggs, with heavier yolks and albumens that enhance embryonic development. Moreover, in canaries, testosterone concentration increased with laying order. Chicks hatched from eggs laid last would be better competitors in the nest to get food from their parents. To conclude, eggs characteristics depend on the male as well as the female
Bourgeois, Karen. « Ecologie, biologie et conservation d’un oiseau marin endémique de Méditerranée, Puffinus yelkouan ». Aix-Marseille 3, 2006. http://www.theses.fr/2006AIX30057.
Texte intégralThe purpose was to study Puffinus yelkouan, a pelagic seabird remaining poorly known, in order to fill the knowledge gaps for this species ecology and biology, and to provide tangible data for its management and conservation. The review of its world status and threats emphasized that this is a threatened species. We evaluated morphometric and acoustic sexing methods and identified parameters to be considered for monitoring and census planning. The breeding habitat selection analysis highlighted a particularly low occupation rate of the suitable habitat. The analysis of feral cat predation impact showed that this predation constitutes a major threat for the species and revealed an unexpected population structure. These results prioritized cat eradication on our study site (Hyères islands) in order to enhance the breeding population dynamics and to avoid its extinction, the abundance of suitable and available breeding habitat allowing an increase in the species population
Mougeot, François. « Etude des contraintes liées aux risques de prédation et d'infidélité lors de l'appariement : le cas des oiseaux coloniaux ». Tours, 1999. http://www.theses.fr/1999TOUR4021.
Texte intégralMénoni, Emmanuel. « Ecologie et dynamique des populations du Grand Tetras dans les Pyrénées, avec des références spéciales à la biologie de la reproduction chez les poules. Quelques applications à sa conservation : [thèse soutenue sur un ensemble de travaux] ». Toulouse 3, 1991. http://www.theses.fr/1991TOU30243.
Texte intégralThierry, Anne-Mathilde. « Statut endocrinien et effort de reproduction chez un oiseau marin longévif, le manchot Adélie, dans un environnement changeant ». Phd thesis, Université de Strasbourg, 2013. http://tel.archives-ouvertes.fr/tel-01059812.
Texte intégralBoumezbeur, A. « Ecologie et biologie de reproduction de l'erismature a tete blanche (oxyura leucocephala) et de fuligule nyroca (aythya nyroca) sur le lac tonga et le lac oiseaux (est-algerien). (mesures de protection et de gestion du lac tonga) ». Paris, EPHE, 1993. http://www.theses.fr/1993EPHE3010.
Texte intégralLevillain, Adrien. « Influence of high temperatures on avian species : from physiological responses to ecological consequences ». Electronic Thesis or Diss., Strasbourg, 2025. http://www.theses.fr/2025STRAJ004.
Texte intégralClimate change emerges as one of the main drivers of the current erosion of biodiversity. In this thesis, we study birds response to high temperatures, from the physiological mechanisms to the ecological consequences. We review the influence of high temperature on avian breeding success on a global scale. Effect of high temperature on breeding success is likely multifactorial, and reproduction in desert seems strongly depressed during high temperature events, highlighting the vulnerability of desert species to climate warming. Potential impact of climate change are likely to interact with urbanization. We consequently assessed weather effects on great tit (Parus major) reproductive success in a temperate climate across an urbanization gradient. Breeding initiation advanced with warmer temperature and reproductive success seem to increase with temperature, but results were contrasted between urban and forest systems. Overall, cooling requirements, hyperthermia and dehydration risk are predicted to increase with climate change. We review, identify and highlight the need to monitor physiological markers of avian dehydration. Finally, we assess zebra finches (Taenopygia guttata), and arid-adapted bird, response to an acute exposure. Response to heat was sex-dependent, and ultimately promoted hyperthermia and dehydration. This work underscores the need for a multi-scale and integrative approach to better understand and predict climate change impacts on birds
Le, Bohec Céline. « Stratégies d'histoire de vie d'un oiseau longévif : Le manchot royal (Aptenodytes Patagonicus) ». Université Louis Pasteur (Strasbourg) (1971-2008), 2007. https://publication-theses.unistra.fr/restreint/theses_doctorat/2007/LE_BOHEC_Celine_2007.pdf.
Texte intégralAn evaluation of how animals optimize their lifetime reproductive success is a crucial step for defining their life history strategy. We investigated the trade-off between current reproductive effort, and future survival and breeding attempts to test the hypothesis that reproductive costs and individual heterogeneity in quality occur in a population of king penguins (Aptenodytes patagonicus) individually marked with transponders. Our study shows that individuals adopt different strategies to maximize their fitness according to their individual quality, but also in relation to their breeding history. High quality individuals might be able to buffer the impact of environmental stochasticity on reproductive success without jeopardizing their own survival. Therefore, in terms of survival, a late breeding attempt might not be more costly than no breeding attempt for king penguins. Nevertheless, birds might occasionally take reproductive sabbaticals to optimize their residual reproductive value as suggested by the prudent parent hypothesis. In king penguins, high quality individuals do not seem to monopolize central areas of the colony that are presumed to be of high quality (lower predation, flooding, and tick-infestation risk). Conversely, our study highlights the importance of intra-specific aggressiveness for breeding site selection and for seabird colony structuring. Moreover, we found that indices of both large- and local-scale oceanic conditions might provide different information on the influence of the environment on life history traits in an apex predator. While breeding success was found to be negatively influenced by the global SOI (Southern Oscillation Index) and the SST (Sea Surface Temperature) around Crozet, adult king penguin survival was more strongly related to warm SSTs at the marginal ice zone (MIZ) with a 2 year lag. Our study also found that fledglings had the lowest survival probability during the first year at sea, suggesting that individuals of lower quality may disappear from cohorts during this stressful time. High variability in survival between cohorts during this first winter at sea supports the cohort effect hypothesis. The majority of king penguins start to breed at 4-5 years of age and a decrease in survival and recapture between the fourth and fifth winter at sea may be related to the first breeding attempt. We found that pre-fledging body mass influences post-fledging survival and suggest that high body mass may be a handicap for birds when leaving the colony for their first voyage to sea. Finally, age difference in coloured ornament characteristics might signal breeding or social status and thus reduce the rate of agonistic interactions between juveniles and adults. This doctoral thesis allowed us to evaluate some adaptive trade-offs between fitness components defining the life-history strategies of a long-lived seabird
Reichert, Sophie. « Facteurs déterminant la longueur des télomères et implications dans les compromis évolutifs ». Phd thesis, Université de Strasbourg, 2013. http://tel.archives-ouvertes.fr/tel-01023750.
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