887 results match your criteria Journal of Thermal Biology [Journal]


Thermal sensitivity and haemolysis of erythrocytes with membranopathy.

J Therm Biol 2019 Apr 26;81:98-102. Epub 2019 Feb 26.

Department of Pediatrics, Medical Faculty, Thracian University, Stara Zagora 6000, Bulgaria. Electronic address:

Measuring the impedance of heated suspensions of erythrocytes and erythrocyte ghost membranes, two thermally-induced alterations are registered in the plasma membrane at T (denaturation of spectrin with inducing temperature at 49,5 °C) and T (hyperthermic activation of basal ion permeability with inducing temperature at 60.7 °C). In this study erythrocytes from 9 healthy patients and 15 patients with hemolytic anemia were studied and divided into four groups depending on their T and T top temperatures. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S03064565183043
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http://dx.doi.org/10.1016/j.jtherbio.2019.02.019DOI Listing
April 2019
2 Reads

Effect of the valine-to-lysine ratio on the performance of sows and piglets in a hot, humid environment.

J Therm Biol 2019 Apr 27;81:89-97. Epub 2019 Feb 27.

College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China. Electronic address:

To determine the effect of the valine-to-lysine (Val: Lys) ratio on the performance of sows and piglets in a hot, humid environment, eleven Large White × Landrace sows (parity 2 or 3) were selected and randomly assigned to 3 groups. The diets contained total dietary Val: Lys ratios of 0.72, 0. Read More

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http://dx.doi.org/10.1016/j.jtherbio.2019.02.021DOI Listing

The impact of hair coat color on physiological variables, reproductive performance and milk yield of Holstein cows in a hot environment.

J Therm Biol 2019 Apr 27;81:82-88. Epub 2019 Feb 27.

Department of Veterinary Science, Autonomous Agrarian University Antonio Narro, Torreon, Mexico. Electronic address:

Vulnerable animals to heat stress have been described as ones with dark or black hides due to increasing absorption of solar radiation. The effect of coat color in pluriparous contemporary Holstein cows in a hot environment (mean annual temperature 24.6 °C), on body surface temperature (infrared thermography), physiological and hematological variables as well as milk yield and reproductive performance was assessed using 178 Holstein pluriparous cows (74 predominantly white and 104 predominantly black). Read More

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http://dx.doi.org/10.1016/j.jtherbio.2019.02.020DOI Listing

Thermoprotective properties of Opuntia ficus-indica f. inermis cladodes and mesocarps on sheep lymphocytes.

J Therm Biol 2019 Apr 27;81:73-81. Epub 2019 Feb 27.

Department of Animal Sciences, Food and Halieutic Resources, National Institute of Agronomy of Tunisia, Tunis, Tunisia; Laboratory of Materials, Molecules and Application, Preparatory Institute for Scientific and Technical Studies, Tunis, Tunisia.

This study aims to investigate the thermoprotective properties of Opuntia ficus-indica f. inermis. Extracts were prepared from cladodes (CE) and mesocarps (ME), then subjected to a spectrophotometric and LC-MS analyses. Read More

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http://dx.doi.org/10.1016/j.jtherbio.2019.02.018DOI Listing
April 2019
1 Read

Internal precooling decreases forehead and core temperature but does not alter choice reaction time during steady state exercise in hot, humid conditions.

J Therm Biol 2019 Apr 20;81:66-72. Epub 2019 Feb 20.

The University of Western Australia, School of Human Sciences (Exercise and Sport Science), Western Australia, Australia.

This study aimed to determine if precooling via crushed ice ingestion reduces forehead skin temperature (T) and core temperature (T) during exercise in the heat and whether it has an effect on choice reaction time (CRT). Ten males commenced a 30 min precooling period, ingesting either 7 g kg of crushed ice (ICE) or room temperature water (CON) prior to cycling 60 min at 55% V̇O in hot, humid conditions (35.0 ± 0. Read More

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http://dx.doi.org/10.1016/j.jtherbio.2019.02.012DOI Listing

Molecular cloning, characterization of Pomacea canaliculata HSP40 and its expression analysis under temperature change.

J Therm Biol 2019 Apr 2;81:59-65. Epub 2019 Feb 2.

Zhejiang Provincial Key Laboratory of Biometrology and Inspection & Quarantine, College of Life Sciences, China Jiliang University, 258 Xueyuan Street, Xiasha, Hangzhou 310018, China. Electronic address:

Heat shock proteins (HSPs) play important roles in the adaption of Pomacea canaliculata to unsuitable environments. In the present study, a cDNA encoding HSP40 in P. canaliculata (PocaHSP40) was cloned and characterized. Read More

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http://dx.doi.org/10.1016/j.jtherbio.2019.02.006DOI Listing

The mathematics of thermal sub-optimality: Nonlinear regression characterization of thermal performance of reptile metabolic rates.

Authors:
Sean Tomlinson

J Therm Biol 2019 Apr 8;81:49-58. Epub 2019 Feb 8.

School of Molecular and Life Sciences, Curtin University, Kent Street, Bentley 6102, Western Australia, Australia; Kings Park Science, Department of Biodiversity, Conservation and Attractions, Kattidj Close, Kings Park 6005, Western Australia, Australia. Electronic address:

Although several approaches have been suggested, there is no broadly accepted single approach for quantitative characterization of thermal performance in ectotherms. I sought to identify the most appropriate non-linear function with which to represent thermal performance of ectothermic metabolic rate, and to interrogate the biological relevance of the thermal parameters of this function. I used published data for exercise-induced metabolic rates of eight species of reptile from a broad phylogenetic base and global distribution. Read More

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http://dx.doi.org/10.1016/j.jtherbio.2019.02.008DOI Listing

Thermal environments within aspen (Populus tremuloides) tree cavities during summer: Implications for breeding and roosting cavity users.

J Therm Biol 2019 Apr 12;81:41-48. Epub 2019 Feb 12.

Department of Fish and Wildlife Sciences, 875 Perimeter Drive, University of Idaho, Moscow, ID 83844, United States. Electronic address:

Summer temperature patterns within tree cavities might influence occupancy of cavities by different animals such as birds and bats, and furthermore, cavity temperatures can influence processes such as embryonic development or the development of young. Our study aimed to identify the environmental variables influencing cavity temperatures during summer (June-July) in quaking aspen (Populus tremuloides) in southeastern Idaho. We collected temperature data between June 22 and July 27, 2015 using iButtons distributed across 30 tree cavities in 30 aspen stands in the Craters of the Moon National Monument, Idaho. Read More

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http://dx.doi.org/10.1016/j.jtherbio.2019.02.011DOI Listing

A controlled heat stress during late gestation affects thermoregulation, productive performance, and metabolite profiles of primiparous sow.

J Therm Biol 2019 Apr 29;81:33-40. Epub 2019 Jan 29.

College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, PR China; National Experimental Teaching Center for Animal Science, Nanjing Agricultural University, Nanjing 210095, PR China; Key Lab of Animal Physiology and Biochemistry, Ministry of Agriculture and Rural Affairs of the People's Republic of China, Nanjing Agricultural University, Nanjing 210095, PR China. Electronic address:

Heat stress (HS) alters metabolic parameters and reduces productive performance in lactating sows. However, the impact of HS on metabolomic profiles of sows during late gestation is not fully understood. We present here, a study investigating the productive performance and metabolic responses in sows when exposed to HS during late gestation. Read More

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http://dx.doi.org/10.1016/j.jtherbio.2019.01.011DOI Listing

Thermal acclimation of flies from three populations of Drosophila melanogaster fails to support the seasonality hypothesis.

J Therm Biol 2019 Apr 5;81:25-32. Epub 2019 Feb 5.

School of Life Sciences, Arizona State University, Tempe, AZ 85287, USA.

In seasonal environments, natural selection should favor genotypes that acclimate to slow and predictable changes in temperature. Selective pressure for acclimation should be especially strong for animals that complete many generations per year, because seasonal warming or cooling causes offspring to experience different temperatures than their parents did. Here, we studied variation in acclimation capacity among three populations of Drosophila melanogaster. Read More

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http://dx.doi.org/10.1016/j.jtherbio.2019.02.009DOI Listing

The effect of ginger powder and Chinese herbal medicine on production performance, serum metabolites and antioxidant status of laying hens under heat-stress condition.

J Therm Biol 2019 Apr 5;81:20-24. Epub 2019 Feb 5.

Animal Science Department, Agriculture College, Guangdong Ocean University, Haida Road, Mazhang District, Zhanjiang 524088, Guangdong, China. Electronic address:

This study was done to evaluate the effects of Chinese herbal medicine (CHM) and ginger powder on layers-production performance, serum metabolites and antioxidant status under heat stress condition. Two hundred and fifty Lohmann layers were randomly divided into 5 different, including two controls and three experimental groups (H1, H2, and H3). Control groups were fed the basic diet without supplementation, while, the feed of three experimental groups was supplemented with 3. Read More

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http://dx.doi.org/10.1016/j.jtherbio.2019.02.002DOI Listing

Air movement affects insulatory values of nests constructed by Old World Warblers.

J Therm Biol 2019 Apr 8;81:194-200. Epub 2019 Mar 8.

School of Life Sciences, University of Lincoln, Joseph Banks Laboratories, Lincoln LN6 7DL, UK. Electronic address:

Avian nests provide a location for incubation, and in many cases rearing of nestlings. These energetically demanding activities have meant that nest insulation has been the subject of many studies but few to date have dealt with how variation among species in nest construction materials could affect nest insulation. This study investigated the insulation of nests constructed by three species of Old Word warblers (Sylviidae), which vary in size and composition. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S03064565183035
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http://dx.doi.org/10.1016/j.jtherbio.2019.03.003DOI Listing
April 2019
2 Reads

Bats are not squirrels: Revisiting the cost of cooling in hibernating mammals.

J Therm Biol 2019 Apr 6;81:185-193. Epub 2019 Mar 6.

Department of Biological Sciences, Texas Tech University, 2901 Main St., Lubbock, TX 79409, USA.

Many species use stored energy to hibernate through periods of resource limitation. Hibernation, a physiological state characterized by depressed metabolism and body temperature, is critical to winter survival and reproduction, and therefore has been extensively quantified and modeled. Hibernation consists of alternating phases of extended periods of torpor (low body temperature, low metabolic rate), and energetically costly periodic arousals to normal body temperature. Read More

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http://dx.doi.org/10.1016/j.jtherbio.2019.01.013DOI Listing
April 2019
2 Reads

Measurement of human body surface heat flux using a calorimetric sensor.

J Therm Biol 2019 Apr 28;81:178-184. Epub 2019 Feb 28.

Departamento de Física, Universidad de Las Palmas de Gran Canaria, E-35017 Las Palmas, de Gran Canaria, Spain. Electronic address:

We have developed a calorimetric sensor that can perform local measurements of the heat flux transmitted by conduction between a human body and thermostat located inside the sensor. The sensor has a detection area of 2 × 2 cm and, in its current configuration, facilitates measurement with a resolution of 10 mW. In this paper, measurements of two healthy male subjects of different ages (24 and 60 years) are presented. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S03064565183041
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http://dx.doi.org/10.1016/j.jtherbio.2019.02.022DOI Listing
April 2019
5 Reads

Thermal niche adaptations of common mudskipper (Periophthalmus kalolo) and barred mudskipper (Periophthalmus argentilineatus) in air and water.

J Therm Biol 2019 Apr 28;81:170-177. Epub 2019 Feb 28.

Department of Biology, University of West Florida, 11000 University Parkway, Pensacola, FL 32514, USA. Electronic address:

Thermal tolerance niche analyses have been used extensively to identify adaptive thermal tactics used by wholly aquatic fishes, however no study to date has quantified thermal niche characteristics of air-breathing fishes. We use standardized thermal methodologies to estimate temperature acclimation ranges, upper and lower acclimation response ratios, and thermal niche areas in common (Periophthalmus kalolo) and barred (Periophthalmus argentilineatus) mudskippers in air and water. Common and barred mudskippers had an upper chronic limit of 37. Read More

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http://dx.doi.org/10.1016/j.jtherbio.2019.02.023DOI Listing

Heat tolerance responses in a Bos taurus cattle herd raised in a Brazilian climate.

J Therm Biol 2019 Apr 26;81:162-169. Epub 2019 Feb 26.

Universidade Federal de Lavras, Department Animal Science, University Campus, Postal code 3037, Downtown, CEP 37200000 Lavras, MG, Brazil. Electronic address:

Knowledge of thermoregulatory responses in taurine cattle contribute to identification of animals most adapted to heat and productive when raised under Brazilian climate. The objectives were to verify the morphological and physiological responses related to adaptation to heat of taurine breeds raised under in Brazilian meteorological conditions in different seasons of the year and day periods, and to detect differences within and between breeds to know breed is most adapted. Measurements were made of 74 young bulls (n = 31 Angus; n = 43 Simmental) for the morphological traits: hair length (HL), number of hairs (NH), and coat thickness (CT); and for the physiological traits: respiratory rate (RR) and hair coat surface temperature (ST). Read More

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http://dx.doi.org/10.1016/j.jtherbio.2019.02.017DOI Listing

Native amphibian larvae exhibit higher upper thermal limits but lower performance than their introduced predator Gambusia affinis.

J Therm Biol 2019 Apr 25;81:154-161. Epub 2019 Feb 25.

School of Biological Sciences, The University of Hong Kong, Pokfulam, Hong Kong, China.

Information on the thermal limits and physiology of ectothermic amphibians is crucial to our understanding of their ecology in the natural environment, particularly with predicted global changes in climate. We documented the thermal limits of larvae of three amphibian species native to Hong Kong, and their introduced, invasive predator, the mosquitofish (Gambusia affinis). We then used larvae of the brown tree frog Polypedates megacephalus as a model amphibian to further investigate growth, oxygen consumption rate and heat shock protein expression with changes in thermal regime. Read More

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http://dx.doi.org/10.1016/j.jtherbio.2019.02.014DOI Listing

Numerical analysis of an enhanced cooling rate cryopreservation process in a biological tissue.

Authors:
S Sukumar S P Kar

J Therm Biol 2019 Apr 5;81:146-153. Epub 2019 Mar 5.

School of Mechanical Engineering, KIIT Deemed To Be University, Bhubaneswar, Odisha 751024, India. Electronic address:

Cryopreservation is the method of preservation of biological tissues for future references without causing significant damages to their physical and functional properties. This can be done by exposing them to very low cryogenic temperature that involves a greater heat removal rate. A two dimensional numerical model is developed to study the temperature distribution, cooling rate attained and movement of the freezing front during the cryopreservation process. Read More

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http://dx.doi.org/10.1016/j.jtherbio.2019.03.001DOI Listing

Brown adipose tissue plays thermoregulatory role within the thermoneutral zone in Mongolian gerbils (Meriones unguiculatus).

J Therm Biol 2019 Apr 25;81:137-145. Epub 2019 Feb 25.

State Key laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100049, China. Electronic address:

Brown adipose tissue (BAT) plays an important role in thermoregulation and many metabolic processes in small mammals, especially in cold adaptation. However, in warm adaptation, ambient temperature cannot directly activate BAT by sympathetic nervous system. Mongolian gerbils exhibit a wider thermoneutral zone (26. Read More

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http://dx.doi.org/10.1016/j.jtherbio.2019.02.015DOI Listing

The dynamic adaptation of Brazilian Brahman bulls.

J Therm Biol 2019 Apr 25;81:128-136. Epub 2019 Feb 25.

Department of Zootecnia, University of Vale Acaraú, Sobral, CE, Brazil.

Heat stress is one of the most important factors that affect the performance of some Bos taurus breeds and crosses in tropical regions. The Brahman breed was developed in hot regions of the world and often has genes that confer resistance to heat stress compared to other breeds of beef cattle. The goal of this work was to evaluate the adaptive responses of Brahman bulls, based on physiological, hormonal and hair characteristics according to season. Read More

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http://dx.doi.org/10.1016/j.jtherbio.2019.02.016DOI Listing

Corticosterone tissue-specific response in Sprague Dawley rats under acute heat stress.

J Therm Biol 2019 Apr 2;81:12-19. Epub 2019 Feb 2.

Key Laboratory of Animal Genetics, Breeding and Reproduction, MARA, National Engineering Laboratory for Animal Breeding, College of Animal Science and Technology, China Agricultural University, 100193 Beijing, PR China. Electronic address:

Our study evaluated the physiological responses to acute heat stress in rats via body temperature and tissue corticosterone levels, and investigated the relative tissue response to heat stress based on corticosterone. Body temperature of rats under 22 °C (control) and 42 °C for 30 (H30), 60 (H60) and 120 min (H120) was measured. Correspondingly, corticosterone was analyzed in 11 tissues (adrenal, brain, heart, kidney, liver, lung, leg muscle, blood, stomach, spleen and small intestine). Read More

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https://linkinghub.elsevier.com/retrieve/pii/S03064565183034
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http://dx.doi.org/10.1016/j.jtherbio.2019.02.004DOI Listing
April 2019
2 Reads

The key local segments of human body for personalized heating and cooling.

J Therm Biol 2019 Apr 23;81:118-127. Epub 2019 Feb 23.

School of Building Services Science and Engineering, Xi'an University of Architecture and Technology, Xi'an city, China.

Thermal characteristics of local body parts of a human subject are markedly different in cold or hot environments. Some body segments are known to be much more susceptible to heat loss than the others, thus strongly influencing the overall thermal sensation of a subject. If these body parts can be effectively cooled in a hot environment or warmed in a cold environment using personal environmental control systems, thermal comfort of human occupants can be achieved at the minimum cost of energy without heavily relying on centralized heating, ventilation, and air conditioning systems. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S03064565183050
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http://dx.doi.org/10.1016/j.jtherbio.2019.02.013DOI Listing
April 2019
3 Reads

Chronic heat stress alters hypothalamus integrity, the serum indexes and attenuates expressions of hypothalamic appetite genes in broilers.

J Therm Biol 2019 Apr 28;81:110-117. Epub 2019 Feb 28.

College of Animal Science and Technology; Key Laboratory of Animal Origin Food Production and Safety Guarantee of Jiangsu Province; Jiangsu Collaborative Innovation Center of Meat Production and Processing, Quality and Safety Control, Joint International Research Laboratory of Animal Health and Food Safety, National Experimental Teaching Demonstration Center of Animal Science, Nanjing Agricultural University, Nanjing 210095, PR China. Electronic address:

The hypothalamus is crucial to ensure the functionality of the entire organisms, such as body temperature, feed intake and energy regulation. Exposing broilers to high ambient temperature usually induces lower feed intake and energy imbalance. We investigated the molecular mechanisms by which heat stress impairs the appetite via dysfunction in hypothalamus of the broilers. Read More

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http://dx.doi.org/10.1016/j.jtherbio.2019.02.025DOI Listing

Multigenerational heat acclimation increases thermal tolerance and expression levels of Hsp70 and Hsp90 in the rice leaf folder larvae.

J Therm Biol 2019 Apr 28;81:103-109. Epub 2019 Feb 28.

Department of Entomology, Nanjing Agricultural University, Nanjing 210095, China. Electronic address:

Physiological response and acclimation to thermal stress is a key strategy of insects to cope with changing climate. The underlying mechanism of heat acclimation in insects is still unclear. Here, the heat selection and transcript level response in the larvae of the rice leaf folder Cnaphalocrocis medinalis Güenée, a serious pest of rice in summer, were studied. Read More

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http://dx.doi.org/10.1016/j.jtherbio.2019.02.024DOI Listing
April 2019
4 Reads

Flavangenol regulates gene expression of HSPs, anti-apoptotic and anti-oxidative factors to protect primary chick brain cells exposed to high temperature.

J Therm Biol 2019 Apr 5;81:1-11. Epub 2019 Feb 5.

Laboratory of Regulation in Metabolism and Behavior, Graduate School of Bioresource and Bioenvironmental Sciences, Faculty of Agriculture, Kyushu University, Fukuoka 819-0395, Japan.

Heat-stress exposure increased the expression of heat-shock proteins (HSPs), B-cell lymphoma 2 (BCL-2) and anti-oxidative enzymes to maintain normal cellular function by attenuating the oxidative reaction and apoptosis. Reducing the stress response or enhancing anti-stress capability is an important goal in animal production. Our previous study indicated a protective role of flavangenol, a pine bark extract, in chicks after three hours of high-temperature exposure. Read More

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http://dx.doi.org/10.1016/j.jtherbio.2019.02.010DOI Listing
April 2019
2 Reads

Relationship between metabolic rate and blood perfusion under Fanger thermal comfort conditions.

J Therm Biol 2019 Feb 7;80:94-105. Epub 2019 Jan 7.

Faculty of Mechanical Engineering, University of Maribor, 2000, Slovenia.

The one-dimensional steady Pennes (bioheat) equation was applied to analyze heat conduction inside a combined layer of human muscle and fat, under Fanger thermal comfort conditions. The bioheat equation was solved subject to two boundary conditions at the skin surface: a prescribed skin temperature satisfying the Fanger comfort criterion, and a prescribed heat flux obtained from the overall energy balance for the system. In addition to a fixed body core temperature, an adiabatic condition was imposed as an auxiliary condition at the core of the body, and a pair of equations were derived, relating the blood perfusion and the volumetric heat generation rate for a given activity level and environmental conditions. Read More

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http://dx.doi.org/10.1016/j.jtherbio.2019.01.002DOI Listing
February 2019
1 Read

Ambient temperature preferences of chimney swifts (Chaetura pelagica) for Nest Site Selection.

J Therm Biol 2019 Feb 18;80:89-93. Epub 2018 Dec 18.

University of New Brunswick, 3 Bailey Drive, Fredericton, New Brunswick, Canada E3B 5A3.

Chimney swift (Chaetura pelagica) populations are declining rapidly, with no clear indication as to why. Reduced availability of nesting habitat (chimneys) was thought to be a limiting factor for this threatened species, but data from Ontario, Canada did not support this hypothesis. If availability is not limiting, then perhaps habitat quality may play a role. Read More

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http://dx.doi.org/10.1016/j.jtherbio.2018.12.017DOI Listing
February 2019
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Normative surface skin temperature changes due to blood redistribution: A prospective study.

J Therm Biol 2019 Feb 9;80:82-88. Epub 2019 Jan 9.

Science Research Department, Alexander Muss High School in Israel (AMHSI) affiliated to the Alexander Muss Institute for Israel Education (AMIIE), Hod HaSharon, Israel. Electronic address:

The continuing development and manufacture of infrared devices, together with improvements in thermal body mapping techniques have simplified surface skin thermography which is being used more extensively than ever before. Normative thermography data, however, remains incomplete. A normative blood redistribution range of skin temperatures was established for use as a reference for laboratory infrared thermography (IT), thermal body mapping, and mass fever screenings. Read More

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http://dx.doi.org/10.1016/j.jtherbio.2019.01.009DOI Listing
February 2019
9 Reads

Effect of thermal manipulation during embryogenesis on the promoter methylation and expression of myogenesis-related genes in duck skeletal muscle.

J Therm Biol 2019 Feb 26;80:75-81. Epub 2018 Dec 26.

Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, PR China. Electronic address:

Avian embryos are an ideal system to investigate the effect of incubation temperature on embryonic development, but the characteristics and mechanisms of temperature effects on poultry embryonic myogenesis are unclear. In this study, we investigated the effect of increasing the incubation temperature by 1 °C on the expression of nine myogenesis-related genes in ducks and then explored the correlation between the alteration of promoter methylation and the expression of two of the nine genes under thermal manipulation (TM). The qRT-PCR results showed that TM during embryonic days (ED) 1-10 promoted (P < 0. Read More

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http://dx.doi.org/10.1016/j.jtherbio.2018.12.023DOI Listing
February 2019

Changes in biochemical contents and survival rates of two stored product moths under different thermal regimes.

J Therm Biol 2019 Feb 25;80:7-15. Epub 2018 Dec 25.

Pistachio Safety Research Center, Rafsanjan University of Medical Sciences, Rafsanjan, Iran.

Plodia interpunctella (Hübner) and Ectomyelois ceratoniae (Zeller) (Lepidoptera: Pyralidae) are two destructive pests of stored products. Survival and physiological changes of last instar larvae were investigated under different thermal regimes [i.e. Read More

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http://dx.doi.org/10.1016/j.jtherbio.2018.12.022DOI Listing
February 2019
1 Read

Effects of an unprecedented summer heatwave on the growth performance, flesh colour and plasma biochemistry of marine cage-farmed Atlantic salmon (Salmo salar).

J Therm Biol 2019 Feb 27;80:64-74. Epub 2018 Dec 27.

CSIRO Agriculture and Food, Castray Esplanade, Hobart, TAS 7000, Australia.

Global seawater temperatures are increasing and becoming more variable, with consequences for all marine animals including those in food production systems. In several countries around the world,arming of Atlantic salmon (Salmo salar) occurs towards the upper end of the thermal tolerance window for this species, and marked effects on salmon production during summers have been experienced but never empirically investigated. This project tracked the effects of an extreme summer heatwave on two different cohorts of fish stocked into farm cages either during early winter (EW) or late winter (LW). Read More

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http://dx.doi.org/10.1016/j.jtherbio.2018.12.021DOI Listing
February 2019
1 Read

A winter energetics model for bobcats in a deep snow environment.

J Therm Biol 2019 Feb 8;80:56-63. Epub 2019 Jan 8.

Department of Biology, University of British Columbia Okanagan, 1177 Research Road, Kelowna, BC, Canada V1V 1V7. Electronic address:

Understanding basic energetic requirements of wildlife species is critical to evaluate how individuals persist in their current environments as well as to forecast responses to changed climates or habitats. Indeed, northern range limits are often thought to reflect harsh abiotic conditions that exceed the capacity of individuals to stay in energetic balance. Bobcats (Lynx rufus) occur across much of North America; at northern latitudes, they face winter challenges such as deep snows, cold temperatures, and possible food scarcity. Read More

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http://dx.doi.org/10.1016/j.jtherbio.2019.01.006DOI Listing
February 2019

A numerical-experimental study on thermal evaluation of orthodontic tooth movement during initial phase of treatment.

J Therm Biol 2019 Feb 8;80:45-55. Epub 2019 Jan 8.

Department of Orthodontics and Dental Research Centre, School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran. Electronic address:

The most desired target of orthodontic treatment is tooth movement as a result of application of efficient force system. In this study, effect of tooth loading is studied on temperature profile around the tooth at early stages of treatment. The basis of temperature variation is increase of cell number and activities in periodontium as a result of compression and tension of this layer. Read More

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http://dx.doi.org/10.1016/j.jtherbio.2019.01.005DOI Listing
February 2019
1 Read

Thermal refuge affects space use and movement of a large-bodied galliform.

J Therm Biol 2019 Feb 29;80:37-44. Epub 2018 Dec 29.

Department of Natural Resource Ecology and Management, Oklahoma State University, Stillwater, OK 74078, USA.

Temperature affects every organism on Earth and has been argued to be one of the most critical factors influencing organisms' ecology and evolution. Most organisms are susceptible to landscape temperature ranges that exceed their thermal tolerance. As a result, the distribution of landscape features that mitigate thermal extremes can affect movement and space use of organisms. Read More

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http://dx.doi.org/10.1016/j.jtherbio.2018.12.024DOI Listing
February 2019
1 Read

Effects of a broad range of experimental temperatures on the population growth and body-size of five species of free-living nematodes.

J Therm Biol 2019 Feb 15;80:21-36. Epub 2018 Dec 15.

EDF R&D LNHE - Laboratoire National d'Hydraulique et Environnement, Chatou, France.

The temperature-size rule postulates that the growth rates of ectotherms increase under rising temperatures, while the sizes of these organisms at maturity decrease. However, the upper temperature-tolerance range is also typically represented by a metabolic tipping point after which growth suddenly ceases. Free-living nematodes are important members of ecosystems, but little is known about their thermal tolerance. Read More

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http://dx.doi.org/10.1016/j.jtherbio.2018.12.010DOI Listing
February 2019

Effect of temperature on survival and cuticular composition of three different ant species.

J Therm Biol 2019 Feb 2;80:178-189. Epub 2019 Feb 2.

Centro de Estudos em Recursos Naturais (CERNA), Programa de Pós-Graduação em Recursos Naturais, Universidade Estadual de Mato Grosso do Sul, Dourados, Mato Grosso do Sul 79804-970, Brazil. Electronic address:

Climatic factors, such as temperature variation, interfere with the survival of insects. To respond to these variations, insects have some specific characteristics. These include water content of the body, thickness of the lipid layer, as well as the qualitative and quantitative characteristics of cuticular chemical components. Read More

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http://dx.doi.org/10.1016/j.jtherbio.2019.02.005DOI Listing
February 2019
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Heat-hardening effects on mating success at high temperature in Drosophila melanogaster.

J Therm Biol 2019 Feb 2;80:172-177. Epub 2019 Feb 2.

Universidad de Buenos Aires, Facultad de Ciencias Exactas y Naturales, Departamento de Ecología, Genética y Evolución, Buenos Aires, Argentina; CONICET, Universidad de Buenos Aires, Instituto de Ecología, Genética y Evolución (IEGEBA), Buenos Aires, Argentina. Electronic address:

Reproduction is strongly influenced by environmental temperature in insects. At high temperature, mating success could be influenced not only by basal (non-inducible) thermotolerance but also by inducible plastic responses. Here, mating success at high temperature was tested in flies carrying contrasting genotypes of heat resistance in Drosophila melanogaster. Read More

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http://dx.doi.org/10.1016/j.jtherbio.2019.02.001DOI Listing
February 2019

Thermogenic capacity in subterranean Ctenomys: Species-specific role of thermogenic mechanisms.

J Therm Biol 2019 Feb 1;80:164-171. Epub 2019 Feb 1.

Laboratorio de Ecología Fisiológica y del Comportamiento, Instituto de Investigaciones Marinas y Costeras (IIMyC), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) - Universidad Nacional de Mar del Plata (UNMdP), Mar del Plata CC1245, Argentina.

One way to understand ecological patterns of species is to determine their physiological diversity on a large geographic and/or temporal scales, in a context of hierarchical biodiversity framework. In particular, macrophysiological studies analyze how environmental factors affect the physiology and therefore the distribution of species. Subterranean species are an excellent model for evaluating the large-scale effects of ambient temperature (T) conditions on thermal physiology and distribution, due to their extensive use of burrows that provide a relatively thermal stable environment. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S03064565183047
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http://dx.doi.org/10.1016/j.jtherbio.2019.01.012DOI Listing
February 2019
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Thermal dependence of feeding performance and resting metabolic expenditure in different altitudinal populations of toad-headed lizards.

J Therm Biol 2019 Feb 2;80:16-20. Epub 2019 Jan 2.

Key Laboratory of Animal Ecology and Conservation Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China.

Inter-population variations in growth rate can result from independent or interactive effects of genetic and environmental factors, and be induced by some physiological differences as well. Toad-headed lizards (Phrynocephalus vlangalii) from a higher-elevation population were shown to have a higher growth rate than those from a lower-elevation population. The physiological basis of growth rate variation in this species is not well understood. Read More

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http://dx.doi.org/10.1016/j.jtherbio.2019.01.001DOI Listing
February 2019
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Combined effect of heat and nutritional stress on superovulation of Malpura ewes in a semi-arid region.

J Therm Biol 2019 Feb 4;80:158-163. Epub 2019 Feb 4.

Division of Animal Physiology and Biochemistry, ICAR-Central Sheep and Wool Research Institute, Avikanagar 304501, Rajasthan, India.

Sheep reared in hot semi-arid environments are generally exposed to heat and nutritional stress in some seasons of the year, which affects both production and reproduction. To assess the effect of high ambient temperature and feed scarcity on superovulation, 16 adult Malpura ewes were randomly divided into two groups of 8 animals each. G1 (control) was kept under a shed and offered a maintenance diet, and G2 (combined stress) was subjected to both nutritional (30% less of maintenance diet) and heat (38-44 °C for 6 h/day) stress. Read More

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http://dx.doi.org/10.1016/j.jtherbio.2019.02.007DOI Listing
February 2019
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Does oxidative stress determine the thermal limits of the regeneration niche of Vriesea friburgensis and Alcantarea imperialis (Bromeliaceae) seedlings?

J Therm Biol 2019 Feb 2;80:150-157. Epub 2019 Feb 2.

Departamento de Botânica, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil. Electronic address:

The predicted environmental changes may be detrimental to initial seedling growth, particularly the expected increase in air temperature. We therefore investigated the thermal limits for growth and development of Vriesea friburgensis and Alcantarea imperialis seedlings in the context of oxidative stress. The optimal temperatures for the growth of V. Read More

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http://dx.doi.org/10.1016/j.jtherbio.2019.02.003DOI Listing
February 2019
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Addition of grape pomace flour in the diet on laying hens in heat stress: Impacts on health and performance as well as the fatty acid profile and total antioxidant capacity in the egg.

J Therm Biol 2019 Feb 10;80:141-149. Epub 2019 Jan 10.

Department of Animal Science, Universidade do Estado de Santa Catarina, Chapecó, SC, Brazil; Graduate Program of Animal Science, Universidade do Estado de Santa Catarina, Chapecó, SC, Brazil; Graduate Program in Toxicological Biochemistry, Universidade Federal de Santa Maria, Santa Maria (UFSM), Brazil. Electronic address:

The aim of this study was to evaluate whether the addition of grape pomace flour (GPF) in the diet of laying hens at the end of the productive cycle and on heat stress could exert benefits on their health and performance, as well as egg quality. For this, 74-week-old laying hens (n = 64) were divided into four groups with four repetitions each, as follow: T0 (the control group; without GPF), T1 (1% GPF), T2 (2% GPF) and T3 (3% GPF) during 35 days. Percentage of laid eggs was higher in the group T1 compared to T0, and the feed intake was higher in the groups T1, T2 and T3 compared to T0. Read More

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http://dx.doi.org/10.1016/j.jtherbio.2019.01.003DOI Listing
February 2019
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Temperature-induced changes in reproductive variables in the teleost fish Lophiosilurus alexandri.

J Therm Biol 2019 Feb 8;80:133-140. Epub 2019 Jan 8.

Laboratório de Aquacultura, Departamento de Zootecnia, Escola de Veterinária, Universidade Federal de Minas Gerais - UFMG, Av. Antônio Carlos, 6627, CEP 31270-901 Belo Horizonte, MG, Brazil. Electronic address:

The present study evaluates whether increased water temperature induces reproduction by Lophiosilurus alexandri under controlled conditions, and investigates the effects of this procedure on sexual steroids, hematological profile and behavior. A 44-week experiment was performed with four wild males and 12 wild females that had been acclimatized to captive conditions. Water temperature was maintained at 24. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S03064565183007
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http://dx.doi.org/10.1016/j.jtherbio.2019.01.008DOI Listing
February 2019
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Repeatability of thermal reaction norms for spontaneous locomotor activity in juvenile newts.

J Therm Biol 2019 Feb 16;80:126-132. Epub 2019 Jan 16.

Institute of Vertebrate Biology of the Academy of Sciences of the Czech Republic, Květná 8, 60365 Brno, Czech Republic. Electronic address:

Locomotor activity is a major attribute of animals. Although this trait determines important ecological processes, such as dispersal and species interactions, the sources of its variation are not fully understood. We examined the influence of body temperature (13, 18, 23, and 28 °C) and individual identity on spontaneous locomotor activity in juvenile alpine newts, Ichthyosaura alpestris, over three consecutive weeks. Read More

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http://dx.doi.org/10.1016/j.jtherbio.2019.01.010DOI Listing
February 2019
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Urban heat islands advance the timing of reproduction in a social insect.

J Therm Biol 2019 Feb 11;80:119-125. Epub 2019 Jan 11.

Department of Biology, Case Western Reserve University, Cleveland, OH 44106, USA.

For many species, the timing of life cycle events is advancing under contemporary global climate change. However, much less is known regarding phenological shifts as a result of other sources of anthropogenic change, such as urban warming. In both cases, progress has been hampered by a focus on phenological traits such as the timing of emergence, rather than the phenology of more directly related fitness traits such as the timing of reproduction. Read More

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http://dx.doi.org/10.1016/j.jtherbio.2019.01.004DOI Listing
February 2019

Expression levels of HSP70 and CPT-1 in three local breeds of chickens reared under normal or heat stress conditions after the introduction of the naked neck gene.

J Therm Biol 2019 Feb 17;80:113-118. Epub 2018 Dec 17.

Poultry Production Department, Faculty of Agriculture, Ain Shams University, Cairo, Egypt.

The naked neck gene was introduced by crossbreeding into Egyptian breeds to improve body weight. Expression levels of HSP70 and CPT-1 were used to assess the heat tolerance of three Egyptian local breeds (Fayoumi, Dandarawi and Sinai) with and without the naked neck gene and under normal and heat stress conditions. There were two genotypes from each breed that had the same genetic origin (the naked neck and normal plumage genotypes). Read More

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http://dx.doi.org/10.1016/j.jtherbio.2018.12.018DOI Listing
February 2019
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Mitochondrial active and relaxed state respiration after heat shock mRNA response in the heart.

J Therm Biol 2019 Feb 9;80:106-112. Epub 2019 Jan 9.

Cardiovascular Surgery, Universitätsklinikum Marburg und Giessen GmbH, Germany; Cardiovascular Research Lab, Biochemical Pharmacological Center, Philipps, University Marburg, Germany.

Induction of Heat Shock Proteins results in cytoprotection. Beneficial effect results from transcription and translational cellular components' involvement that defends metabolism and thus induce ischemic protection of the tissue. Mitochondrial respiration is also involved in stress- induced conditions. Read More

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http://dx.doi.org/10.1016/j.jtherbio.2019.01.007DOI Listing
February 2019

Influence of a physical exercise until exhaustion in normothermic and hyperthermic conditions on serum, erythrocyte and urinary concentrations of magnesium and phosphorus.

J Therm Biol 2019 Feb 25;80:1-6. Epub 2018 Dec 25.

Department of Physiology, School of Sport Sciences, University of Extremadura, Spain.

Aim: The aim of this study was to evaluate the effect of the performance of a maximal exercise test until exhaustion in normothermic and hyperthermic conditions on body concentrations of magnesium (Mg) and phosphorus (P).

Methods: 19 adult males (age: 22.58 ± 1. Read More

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http://dx.doi.org/10.1016/j.jtherbio.2018.12.020DOI Listing
February 2019
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Impacts of increased ocean temperatures on a low-latitude coral reef fish - Processes related to oxygen uptake and delivery.

J Therm Biol 2019 Jan 10;79:95-102. Epub 2018 Dec 10.

ARC Centre of Excellence for Coral Reef Studies, Townsville, QLD 4811, Australia; College of Science and Engineering, James Cook University, Townsville, QLD 4811, Australia.

Increasing temperatures are expected to significantly affect the physiological performance of ectotherms, particularly in tropical locations. The shape of an organism's thermal reaction norm can provide important information on its capacity to persist under climate change scenarios; however, difficulty lies in choosing a measurable trait that best depicts physiological performance. This study investigated the effects of elevated temperatures on processes related to oxygen uptake and delivery, including oxygen consumption, haematology, and tissue health for a low-latitude population of coral reef damselfish. Read More

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http://dx.doi.org/10.1016/j.jtherbio.2018.12.008DOI Listing
January 2019
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Life-stage related responses to combined effects of acclimation temperature and humidity on the thermal tolerance of Chilo partellus (Swinhoe) (Lepidoptera: Crambidae).

J Therm Biol 2019 Jan 11;79:85-94. Epub 2018 Dec 11.

Department of Biology and Biotechnological Sciences, Botswana International University of Science and Technology (BIUST), Private Bag 16, Palapye, Botswana. Electronic address:

Adaptive thermal plasticity plays a key role in mitigating the effects of seasonal and diurnal thermal fluctuations among ectotherms at various life-stages. While the role of thermal history in conferring such plasticity is widely documented, its interaction with relative humidity (RH), another important driver of ectotherm survival and activity, is relatively underexplored. Yet the potential responses to these combinational stressors across ontogeny remain largely neglected. Read More

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http://dx.doi.org/10.1016/j.jtherbio.2018.12.002DOI Listing
January 2019