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Relevant bibliographies by topics / Estivation

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Academic literature on the topic 'Estivation'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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Journal articles on the topic "Estivation"

1

REES, BERNARD B., and STEVEN C. HAND. "Heat Dissipation, Gas Exchange and Acid-Base Status in the Land Snail Oreohelix During Short-Term Estivation." Journal of Experimental Biology 152, no. 1 (1990): 77–92. http://dx.doi.org/10.1242/jeb.152.1.77.

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Within 4 days following entry into estivation, heat dissipation and oxygen consumption by the land snail Oreohelix spp. decreased by 83% compared to standard non-estivating rates. During both non-estivating and estivating conditions, the quantity of heat dissipated per mole of O2 consumed was indicative of a completely aerobic metabolism. This calorimetric-respirometric (C/R) ratio was −461±12 kJ mol−1O2 (S.E.M., N=5) under standard non-estivating conditions and −464±26 kJ mol−1O2 (N=4) during estivation. Respiratory exchange ratios reflected a primary dependence upon carbohydrate as a metabol

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2

Reilly, Beau D., David I. Schlipalius, Rebecca L. Cramp, Paul R. Ebert, and Craig E. Franklin. "Frogs and estivation: transcriptional insights into metabolism and cell survival in a natural model of extended muscle disuse." Physiological Genomics 45, no. 10 (2013): 377–88. http://dx.doi.org/10.1152/physiolgenomics.00163.2012.

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Green-striped burrowing frogs ( Cyclorana alboguttata ) survive in arid environments by burrowing underground and entering into a deep, prolonged metabolic depression known as estivation. Throughout estivation, C. alboguttata is immobilized within a cast-like cocoon of shed skin and ceases feeding and moving. Remarkably, these frogs exhibit very little muscle atrophy despite extended disuse and fasting. Little is known about the transcriptional regulation of estivation or associated mechanisms that may minimize degradative pathways of atrophy. To investigate transcriptional pathways associated

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Bell, Ryan A. V., Neal J. Dawson, and Kenneth B. Storey. "Insights into the In Vivo Regulation of Glutamate Dehydrogenase from the Foot Muscle of an Estivating Land Snail." Enzyme Research 2012 (March 26, 2012): 1–10. http://dx.doi.org/10.1155/2012/317314.

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Land snails, Otala lactea, survive in seasonally hot and dry environments by entering a state of aerobic torpor called estivation. During estivation, snails must prevent excessive dehydration and reorganize metabolic fuel use so as to endure prolonged periods without food. Glutamate dehydrogenase (GDH) was hypothesized to play a key role during estivation as it shuttles amino acid carbon skeletons into the Krebs cycle for energy production and is very important to urea biosynthesis (a key molecule used for water retention). Analysis of purified foot muscle GDH from control and estivating condi

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WHITWAM, ROSS E., and KENNETH B. STOREY. "Pyruvate Kinase from the Land Snail Otala Lactea: Regulation by Reversible Phosphorylation During Estivation and Anoxia." Journal of Experimental Biology 154, no. 1 (1990): 321–37. http://dx.doi.org/10.1242/jeb.154.1.321.

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Pyruvate kinase (PK) from tissues of the desert snail Otala lactea (Müller) undergoes a stable modification of its kinetic properties during estivation or in response to anoxia stress. In foot muscle and mantle, the kinetic changes induced by either state were virtually identical and were consistent with a less active enzyme form in estivation or anoxia: S0.5 PEP increased, and I50 values for Mg-ATP and L-alanine decreased, compared to the enzyme in control (aroused) snails. Estivation and anoxia also changed the properties of PK from hepatopancreas; some changes were consistent with a more ac

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5

Bishop, Tammie, Julie St-Pierre, and Martin D. Brand. "Primary causes of decreased mitochondrial oxygen consumption during metabolic depression in snail cells." American Journal of Physiology-Regulatory, Integrative and Comparative Physiology 282, no. 2 (2002): R372—R382. http://dx.doi.org/10.1152/ajpregu.00401.2001.

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Cells isolated from the hepatopancreas of estivating snails ( Helix aspersa) have strongly depressed mitochondrial respiration compared with controls. Mitochondrial respiration was divided into substrate oxidation (which produces the mitochondrial membrane potential) and ATP turnover and proton leak (which consume it). The activity of substrate oxidation (and probably ATP turnover) decreased, whereas the activity of proton leak remained constant in estivation. These primary changes resulted in a lower mitochondrial membrane potential in hepatopancreas cells from estivating compared with active

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Mora, José M., and Franklin E. Castañeda. "Terrestrial movements, activity patterns and habitat use by Kinosternon scorpioides (Testudines: Kinosternidae) in Palo Verde National Park, Costa Rica." Phyllomedusa: Journal of Herpetology 21, no. 1 (2022): 3–15. http://dx.doi.org/10.11606/issn.2316-9079.v21i1p3-15.

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The Scorpion Mud turtle, Kinosternon scorpioides, is a widely distributed, semiaquatic species known to engage in regular terrestrial movement and terrestrial estivation. We studied terrestrial behavior in this species in Palo Verde National Park, northwestern Costa Rica. We determined terrestrial activity patterns by searching for active individuals during transects along 3.4 km of trails. We determined the distance that turtles traveled between the wetlands and estivation sites by fitting 10 terrestrially active individuals with a thread-bobbin tracking device attached to the rear of the car

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7

Ferreira, Marcus V. R., Antonieta C. R. Alencastro, and Marcelo Hermes-Lima. "Role of antioxidant defenses during estivation and anoxia exposure in the freshwater snail Biomphalaria tenagophila (Orbigny, 1835)." Canadian Journal of Zoology 81, no. 7 (2003): 1239–48. http://dx.doi.org/10.1139/z03-104.

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The effects of 24 h of exposure to underwater anoxia and 15 days of estivation (at 2627°C) on the enzymatic antioxidant system of the hepatopancreas of the freshwater snail Biomphalaria tenagophila (Planorbidae) are described. The effect of 24 h of recovery was also investigated. Catalase activity dropped by 31% during 24 h of anoxia, and superoxide dismutase (SOD) activity was reduced by 43% during the 15 days of estivation. This is consistent with the overall decrease in metabolic rate during estivation or anoxia. Indeed, the heartbeat diminished by 2836% during estivation (determination w

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8

Fishman, Alfred P., Allan I. Pack, Richard G. Delaney, and Raymond J. Galante. "Estivation inProtopterus." Journal of Morphology 190, S1 (1986): 237–48. http://dx.doi.org/10.1002/jmor.1051900416.

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Hermes-Lima, M., and K. B. Storey. "Antioxidant defenses and metabolic depression in a pulmonate land snail." American Journal of Physiology-Regulatory, Integrative and Comparative Physiology 268, no. 6 (1995): R1386—R1393. http://dx.doi.org/10.1152/ajpregu.1995.268.6.r1386.

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During arousal from estivation oxygen consumption by land snails (Otala lactea) increases severalfold. To determine whether snails prepared for an accompanying rise in the rates of oxyradical generation by altering their antioxidant defense mechanisms, changes in the activities of antioxidant enzymes and lipid peroxidation products were quantified in foot and hepatopancreas of control, 30-day estivating, and aroused snails. Compared with controls, estivating O. lactea showed significant increases in the activities of foot muscle superoxide dismutase (SOD) (increasing by 56-67%), catalase (51-7

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10

Rodriguez, Cristian, Alejandra D. Campoy-Diaz, and Maximiliano Giraud-Billoud. "Short-Term Estivation and Hibernation Induce Changes in the Blood and Circulating Hemocytes of the Apple Snail Pomacea canaliculata." Metabolites 13, no. 2 (2023): 289. http://dx.doi.org/10.3390/metabo13020289.

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States of natural dormancy include estivation and hibernation. Ampullariids are exemplary because they undergo estivation when deprived of water or hibernation when exposed to very low temperatures. Regardless of the condition, ampullariids show increased endogenous antioxidant defenses, anticipating the expected respiratory burst during reoxygenation after reactivation, known as “Preparation for Oxidative Stress (POS)”. In this work, we tested the POS hypothesis for changes in the blood and hemocytes of the bimodal breather Pomacea canaliculata (Ampullariidae) induced at experimental estivati

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Dissertations / Theses on the topic "Estivation"

1

Grundy, Jean Elizabeth Carleton University Dissertation Chemistry. "Antioxidant defences during estivation in the spadefoot toad Scaphiopus couchi." Ottawa, 1996.

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2

Pereira, Isabel Cristina. "Estratégias fisiológicas e comportamentais em anuros no semiárido: implicações sobre o balanço energético e hídrico." Universidade de São Paulo, 2016. http://www.teses.usp.br/teses/disponiveis/41/41135/tde-17102016-113321/.

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A estivação é caracterizada como um conjunto de alterações fisiológicas e comportamentais relacionadas com a redução do metabolismo e a permanência em micro-habitats específicos durante a fase de estiagem. Na caatinga brasileira foram observadas ao menos três espécies que estivam, sendo duas da família Leiuperidae, Pleurodema diplolistris e Physalaemus albifrons e uma da família Cycloramphidae, Proceratophrys cristiceps. Ainda que encontradas no mesmo micro-habitat durante a estivação, estas três espécies exibiram padrões distintos de alteração do desempenho locomotor entre as duas estações ma

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Word, 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.

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The desert-adapted frogs Cyclorana platycephala and Cyclorana maini survive long periods of inhospitably hot and dry conditions by retreating underground and aestivating. While aestivating they suspend food and water intake as well as physical activity, depress their metabolic rate by ~80 %, and form cocoons that protect them against desiccation. How these frogs function during this exceptional state is largely unknown. This work characterized a number of physiological parameters in three metabolic states spanning their natural metabolic range: during aestivation (depressed metabolism), at res

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Hidalgo, Kévin. "Plasticité phénotypique de la résistance à la dessiccation chez les moustiques Anopheles coluzzii et An. gambiae en Afrique sub-saharienne." Thesis, Rennes 1, 2014. http://www.theses.fr/2014REN1S106/document.

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Dans les savanes d'Afrique de l'Ouest, les moustiques Anopheles coluzzii et An. gambiae, qui transmettent le paludisme, pullulent en saison des pluies et disparaissent en saison sèche. Les mécanismes permettant le maintien des populations d'Anophèles d'une année sur l'autre restent inconnus et difficiles à mettre en évidence sur le terrain. Au cours de ce travail, nous avons étudié, par des approches comparatives et expérimentales, la plasticité physiologique et morphologique des femelles An. coluzzii et An. gambiae exprimée en réponse aux conditions déshydratantes de la saison sèche. Des anal

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Nicolai, Annegret. "L'impact du régime alimentaire sur la reproduction et les processus physiologiques chez les escargots terrestres Cornu aspersum et Helix pomatia." Phd thesis, Université Rennes 1, 2010. http://tel.archives-ouvertes.fr/tel-00525296.

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L'acquisition et l'allocation de ressources sont des tâches fondamentales chez tous les animaux. Les organismes rencontrent souvent de l'hétérogénéité dans l'espace et dans le temps et devront adapter leur traits d'histoire de vie, décrits comme un ensemble héritable de règles qui déterminent l'allocation vers la croissance ou la mise en réserve pour la survie versus la reproduction. Chez Cornu aspersum, la stratégie de reproduction dépend des contraintes saisonnières et l'investissement dans la reproduction est influencé par l'énergie disponible dans l'environnement. Des nutriments présents d

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Books on the topic "Estivation"

1

Estivation. Not Avail, 2005.

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2

Magill's Encyclopedia of Science: Animal Life : Estivation-Learning. Salem Press, 2002.

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3

Carvalho, José Eduardo, and Carlos Arturo Navas. Aestivation: Molecular and Physiological Aspects. Springer, 2012.

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4

Carvalho, José Eduardo, and Carlos Arturo Navas. Aestivation: Molecular and Physiological Aspects. Springer, 2010.

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5

Roots, Clive. Hibernation. Greenwood, 2006. http://dx.doi.org/10.5040/9798400663147.

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We share the earth with a wide variety of animal species, each of which brings something special to the diversity of the planet. By knowing more about how animals behave and live, we gain a greater understanding of how life evolved and the importance of biodiversity.Hibernationexamines those animals that cannot migrate and are forced to remain in a habitat that is inhospitable and consequently sleep deeply for weeks or months. Known as hibernation for winter sleep and estivation for its summer equivalent, this unique trait involves many special behaviors — how do such animals prepare for sleep

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Book chapters on the topic "Estivation"

1

Loomis, Stephen H. "Diapause and Estivation in Sponges." In Aestivation. Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-642-02421-4_11.

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Ferreira-Cravo, Marlize, Alexis F. Welker, and Marcelo Hermes-Lima. "The Connection Between Oxidative Stress and Estivation in Gastropods and Anurans." In Aestivation. Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-642-02421-4_3.

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Wünnenberg, W. "Circadian Rhythm in the Snail Helix Pomatia L. during Estivation and Hibernation." In Thermal Balance in Health and Disease. Birkhäuser Basel, 1994. http://dx.doi.org/10.1007/978-3-0348-7429-8_27.

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4

Ramnanan, Christopher J., Ryan A. Bell, and John-Douglas Matthew Hughes. "Key Molecular Regulators of Metabolic Rate Depression in the Estivating Snail Otala Lactea." In Physiology of Molluscs. Apple Academic Press, 2021. http://dx.doi.org/10.1201/9781315207124-8.

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5

"aestivation | estivation, n." In Oxford English Dictionary, 3rd ed. Oxford University Press, 2023. http://dx.doi.org/10.1093/oed/3436453449.

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6

Land, Stephen C., and Nicholas J. Bernier. "Chapter 18 Estivation: Mechanisms and control of metabolic suppression." In Biochemistry and Molecular Biology of Fishes. Elsevier, 1995. http://dx.doi.org/10.1016/s1873-0140(06)80044-5.

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7

Geiser, F. "Hibernation, Daily Torpor and Estivation in Mammals and Birds: Behavioral Aspects." In Encyclopedia of Animal Behavior. Elsevier, 2010. http://dx.doi.org/10.1016/b978-0-08-045337-8.00247-3.

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Geiser, Fritz. "Hibernation, Daily Torpor and Estivation in Mammals and Birds: Behavioral Aspects." In Encyclopedia of Animal Behavior. Elsevier, 2019. http://dx.doi.org/10.1016/b978-0-12-809633-8.20755-3.

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9

Geiser, Fritz. "Hibernation, daily torpor and estivation in mammals and birds: Behavioral aspects." In Reference Module in Life Sciences. Elsevier, 2025. https://doi.org/10.1016/b978-0-443-29068-8.00132-x.

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"aestivating | estivating, n." In Oxford English Dictionary, 3rd ed. Oxford University Press, 2023. http://dx.doi.org/10.1093/oed/7449108495.

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