Dissertations / Theses on the topic 'Amphibiens – Physiologie'
Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles
Consult the top 33 dissertations / theses for your research on the topic 'Amphibiens – Physiologie.'
Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.
You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.
Browse dissertations / theses on a wide variety of disciplines and organise your bibliography correctly.
Renoirt, Matthias. "Influence de l’habitat sur l’écologie et la physiologie du crapaud épineux (Bufo spinosus)." Electronic Thesis or Diss., La Rochelle, 2022. http://www.theses.fr/2022LAROS041.
Full textA large number of studies have highlighted the negative effects of anthropogenic pressures intime and space on biodiversity. Among these anthropogenic pressures, agricultural activities and expansion play a major role in the modification of environments and in the loss of biodiversity. Questions whether animal species persist in this type of environment arises. My thesis is based on this context. We aimed at study the responses of organism to a degraded environment and the landscape constraints on life history traits and ecology. My work is focused specifically on an amphibian species persisting in habitat ranging from highly conserved to highly degraded by agricultural activities. In order to compare forest and agricultural populations of model species (Spined toad, Bufo spinosus), I relied on a wide variety of markers to examine (1) population genetic structure (micro-satellite markers), (2) feeding ecology (stable isotope), (3) individual quality (telomeres, morphology, developmental traits) and the impact on reproduction. As a result, I was able to connect many factors associated with agricultural landscapes that raised many questions about the persistence of spined toad populations. We were able to show a significant effect of fertilizers on the δ15N isotopic signature of B.spinosus populations. Moreover, we highlighted that agricultural environment allows genetic diversity between populations. However, using correlative approaches, we pointed out various on strains of this environment on the reproduction of amphibians populations, either through low (or no) abundance of females on breeding sites, and/or directly on reproductive success and offspring quality. These results suggest possible long-term effects on amphibian populations, and we suggest that the various avenues of research we suggested throughout this thesis should be pursued in order to better understand the mechanisms underlying these results and to find solutions for the sustainability of wild species that have no choice but to adapt
Bouvet, Jean-François. "Les interactions périphériques entre systèmes trigéminal et olfactif chez les amphibiens : approches immunohistochimique, électrophysiologique et pharmacologique." Lyon 1, 1992. http://www.theses.fr/1992LYO10006.
Full textFigiel, Anne. "Substitution naturelle et induite de l'épithélium intestinal des amphibiens anoures : Aspects cellulaires et moléculaires." Nancy 1, 1989. http://www.theses.fr/1989NAN10158.
Full textCordier-Picouet, Marie-Jeanne. "Organisation du systeme visuel et mise en place de la retinotopie tectale chez les amphibiens anoures." Paris 7, 1987. http://www.theses.fr/1987PA077104.
Full textMorra, Mohamad. "Contribution à l'étude du contrôle de la steroïdogénèse surrénalienne chez les amphibiens : effet et mécanisme d'action de la dopamine." Rouen, 1991. http://www.theses.fr/1991ROUES003.
Full textAl-Asaad, Imane. "Étude de marqueurs de différenciation testiculaire Sox9 et Amh lors d'un développement normal, d'une inversion sexuelle et d'un développement en absence de cellules germinales chez l'amphibien urodèle Pleurodeles waltl. Intérêt pour la physiologie comparée de la reproduction des vertébrés." Thesis, Université de Lorraine, 2013. http://www.theses.fr/2013LORR0229/document.
Full textIn the context of comparative physiology of reproduction, amphibians are poorly studied. This work was dedicated to the analysis of testis differentiation markers in the newt Pleurodeles waltl, which shows a ZZ/ZW genetic mode of sex determination that can be affected by temperature. First, we studied sox9, a testis differentiation marker well characterized in many higher vertebrates. The gene cloned in Pleurodeles shows a good level of identity with other vertebrates. The testis-enriched expression appears late during the testis differentiation process indicating that it is probably not involved in the early steps of testis differentiation. Its use as a marker of testicular differentiation proved difficult since it is expressed not only in the gonads but also in the mesonephros. Then, we studied amh, a testis hormone responsible for müllerian duct regression in many vertebrates. Its early expression in the gonad, significantly higher in male than in female larvae makes it an excellent marker for testis differentiation. Since in Pleurodeles waltl, Müllerian ducts persist in males, it suggests that during the course of evolution, the function of Amh on the regression of Müllerian ducts appeared secondarily after its role in gonadal differentiation. These markers have been used to characterize the gonadal phenotype during sex reversal, or in gonads developed in the absence of germ cells. They showed that these cells do not seem to play a role in gonadal differentiation of Pleurodeles waltl
Ouedraogo, Lazare. "Etude de quelques effets de la métamorphose des amphibiens sur certaines protéines et sur la structure hépatique." Paris 13, 1987. http://www.theses.fr/1987PA132022.
Full textFerrary, Evelyne. "Contribution à l'étude des liquides de l'oreille interne." Paris 11, 1989. http://www.theses.fr/1989PA112058.
Full textCarey, Marc Brandon. "Brainstem auditory evoked potentials in anuran amphibians." PDXScholar, 1992. https://pdxscholar.library.pdx.edu/open_access_etds/4267.
Full textPiotrowski, Jeffery Scott. "Physiology, Enzyme Production, and Zoospore Behavior of Balrachochytrium dendrobatidis, a Chytrid Pathogenic to Amphibians." Fogler Library, University of Maine, 2002. http://www.library.umaine.edu/theses/pdf/PiotrowskiJS2002.pdf.
Full textPalenske, Nicole Marie. "Effects of Triclosan, Triclocarban, and Caffeine Exposure on the Development of Amphibian Larvae." Thesis, University of North Texas, 2009. https://digital.library.unt.edu/ark:/67531/metadc11016/.
Full textDananay, Kacey Lynn. "ECOLOGICAL AND PHYSIOLOGICAL EFFECTS OF ENVIRONMENTAL STRESSORS ACROSS LIFE-STAGES IN AMPHIBIANS." Case Western Reserve University School of Graduate Studies / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=case1528212619441887.
Full textTufts, Bruce Laurie. "Ion exchange mechanisms for the control of volume and pH in fish and amphibian erythrocytes." Thesis, University of British Columbia, 1987. http://hdl.handle.net/2429/29443.
Full textScience, Faculty of
Zoology, Department of
Graduate
Kimmel, Peter Blair. "The significance of hypovolemia in dehydrational death in anurans." PDXScholar, 1985. https://pdxscholar.library.pdx.edu/open_access_etds/3432.
Full textRamelow, Evelyn. "Grundlagen der Verdauungsphysiologie, Nährstoffbedarf und Fütterungspraxis bei Fischen und Amphibien unter besonderer Berücksichtigung der Versuchstierhaltung eine Literaturstudie und Datenerhebung." Berlin mbv, Mensch-und-Buch-Verl, 2009. http://d-nb.info/1002921147/04.
Full textCrossley, II Dane Alan. "The Role of Pulmocutaneous Baroreceptors in the Control of Lymphatic Heart Rate in the Toad Bufo Marinus." PDXScholar, 1995. https://pdxscholar.library.pdx.edu/open_access_etds/4892.
Full textBeauquin, Christophe. "Caractéristiques fonctionnelles des afférences rétino-tectales ipsilatérales chez un amphibien (Rana esculenta) : sensibilité aux stimuli "configurationnels"." Poitiers, 1998. http://www.theses.fr/1998POIT2294.
Full textMcDearmid, Jonathan R. "Noradrenergic control of spinal motor circuitry in two related amphibian species, Xenopus laevis and Rama temporaria." Thesis, University of St Andrews, 1998. http://hdl.handle.net/10023/15058.
Full textWord, James Mabry. "Physiological adjustments to aestivation and activity in the cocoon-forming frogs Cyclorana platycephala and Cyclorana maini." University of Western Australia. School of Animal Biology, 2008. http://theses.library.uwa.edu.au/adt-WU2008.0254.
Full textPollard, Andrea. "Mechanoadaptation of developing limbs : shaking a leg." Thesis, Royal Veterinary College (University of London), 2016. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.701670.
Full textMcLean, David L. "The gaseous messenger molecule, nitric oxide : a modulator of locomotor movements during early amphibian development." Thesis, University of St Andrews, 2001. http://hdl.handle.net/10023/2829.
Full textGuéguinou, Nathan. "Modifications de l'immunité humorale induites par des changements de la gravité." Thesis, Université de Lorraine, 2012. http://www.theses.fr/2012LORR0081/document.
Full textDuring my PhD, I studied the impact of spaceflight-associated stresses on Pleurodeles waltl and Mus musculus humoral immunity. In adult P. waltl immunized during 5 months onboard the Mir space station (Genesis experiment in 1999), I first determined how individual VH genes are used. Then, I studied antibodies affinity maturation in these animals. This maturation implies the introduction of somatic hypermutations (SHM) in DNA encoding the variable segments of antibodies genes. These two pieces of work have shown that variable segments of heavy chain gene are differently used and that SHM frequency is reduced when immunization occurs in space. Then, I studied antibodies production during animal development onboard the international space station (ISS) (AMPHIBODY experiment in 2006). The antibodies production being increased in larvae that developed in the ISS, we recreated in the laboratory each stress encountered during the spaceflight (hypergravity, microgravity, heat shock associated to the re-entry in the atmosphere, radiations, perturbation of circadian rhythm and confinement) to determine their impact on IgM heavy chain transcription. This allowed to observe that only gravity changes affect this transcription. Finally, I studied the impact of hypergravity (2G and 3G) on the murine immune system. I observed physiological and behavioural stress responses in mice exposed to 3G but not in 2G mice. However, immune system alterations were observed in both the 2G and 3G groups, suggesting that gravity modifications, associated or not with stress responses, are responsible for immune system modifications
Parker, Mark. "Independent Acoustic Stimulation of the Amphibian and Basilar Papillae of Rana pipiens." PDXScholar, 1995. https://pdxscholar.library.pdx.edu/open_access_etds/4956.
Full textAl-Asaad, Imane. "Etude des marqueurs de différenciation testiculaire Sox9 et Amh lors d'un développement normal, d'une inversion sexuelle et d'un développement en absence de cellules germinales chez l'amphibien Pleurodeles waltl. Intérêt pour la physiologie comparée de la reproduction des vertébrés." Phd thesis, Université de Lorraine, 2013. http://tel.archives-ouvertes.fr/tel-00919914.
Full textRosendale, Andrew J. "Importance of Facilitative Urea Transporters in Anuran Osmoregulation." Miami University / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=miami1313089167.
Full textOtani, Lye. "Aspectos da fisiologia metabólica e do desempenho locomotor em anfíbios anuros: implicações da fragmentação ambiental." Universidade de São Paulo, 2011. http://www.teses.usp.br/teses/disponiveis/41/41135/tde-12122011-154338/.
Full textIn the last few decades, human activity has changed environmental condition, resulting in amphibian populations decline all around the world. In this study we analyze the relationships between forest fragmentation and the ability of some frog species to move between forest fragments or between fragments and breeding sites. Our study focus relies on anuran locomotor performance and supporting physiology, and the relationship between these traits and resistance to forest fragmentation. We compare morphological, physiological and behavioral traits between populations of anurans species living in different landscapes (continuous or fragmented) of two sites in the Atlantic Forest. According to our data, differences in environmental conditions of landscape are related to morpho-physiological traits. This relationship, however, depends on the site of the Atlantic Forest and also varies between species.
Grimaldi, Alexis. "Interactions croisées entre hormones thyroïdiennes et glucocorticoïdes durant la métamorphose de Xenopus tropicalis." Thesis, Paris 11, 2014. http://www.theses.fr/2014PA11T020/document.
Full textAmphibian metamorphosis is the rapid and irreversible process during which an aquatic tadpole transforms into an air breathing adult frog. This ecological transition, reminiscent of the mammalian perinatal period, comes with spectacular changes (diet, locmotor organs, respiratory system...). These morphological and physiological modifications necessitate the properly timed response to a single hormonal signal, the thyroid hormones (TH), in various tissues to lead them to sometimes opposite fates : apoptosis (in the tail), cell prolifération and differenciation (in the limbs) and remodeling (in the intestine and the central nervous system).However, TH do not act alone. In particular, glucocorticoids (GC) play important roles during this process. They also are the main mediator of the stress response. Endocrine processes of the metamorphosis and the stress response are deeply intertwined. GC can thus act as an interface to integrate environmental inputs into regulatory networks.During my doctorate, I analyzed the possible transcriptional crosstalks between TH and GC in two larval tissues : the tailfin (TF) and the hindlimb buds (HLB). Comparing these two tissues allowed me to caracterize the diversity of TH and GC target gene expression profiles. This resulted in several major results. First, the diversity of the profiles of crosstalk between these two pathways is limited, and the majority of the types of profiles is common to both tissues. Next, independently ofthe tissues, some profiles are caracteristic of spécific biological functions such as extracellular matrix remodeling and the immune system. Yet, the genes involved in these shared functions are different between the TF and the HLB. Finally, several factors involved in DNA methylation are subject to a crosstalk between the two hormones
Mueller, Casey Anne. "Developmental energetics and gas exchange in amphibians and lungfish." Thesis, 2011. http://hdl.handle.net/2440/71323.
Full textThesis (Ph.D.) -- University of Adelaide, School of Earth and Environmental Sciences, 2011
Piotrowski, Jeffery Scott. "Physiology, enzyme production, and zoospore behavior of ba trachochytrium dendroba tidis, a chytrid pathogenic to amphibians /." 2002. http://www.library.umaine.edu/theses/pdf/PiotrowskiJS2002.pdf.
Full textChiavarini, Katherine E. "Rapid effects of corticosterone on stress-related behaviors in an amphibian." Thesis, 1997. http://hdl.handle.net/1957/33782.
Full textGraduation date: 1998
Lowry, Christopher. "Neurobiology of stress : central actions of corticotropin-releasing factor in an amphibian." Thesis, 1995. http://hdl.handle.net/1957/34605.
Full textNguyen, Long Thanh. "A study of the role of glycogen in skeletal muscle performance and of myosin heavy chain isoform expression in amphibian skeletal muscle using the toad Bufo marinus." Thesis, 2000. https://vuir.vu.edu.au/15310/.
Full textThurman, Lindsey L. "Elevational differences in UV-B response by the long-toed salamander (Ambystoma macrodactylum)." Thesis, 2012. http://hdl.handle.net/1957/30208.
Full textGraduation date: 2012