scholarly journals Comparing thermal tolerance across contrasting landscapes: first steps towards understanding how landscape management could modify ectotherm thermal tolerance

2016 ◽  
Vol 9 (3) ◽  
pp. 171-180 ◽  
Author(s):  
Kévin Tougeron ◽  
Joan van Baaren ◽  
Françoise Burel ◽  
Lucy Alford
Keyword(s):  
Thermal Tolerance ◽  
Landscape Management

scholarly journals Thermal Inactivation of Susceptible and Multiantimicrobial-Resistant Salmonella Strains Grown in the Absence or Presence of Glucose

2003 ◽  
Vol 69 (7) ◽  
pp. 4123-4128 ◽  
Author(s):  
R. T. Bacon ◽  
J. R. Ransom ◽  
J. N. Sofos ◽  
P. A. Kendall ◽  
K. E. Belk ◽  
...  
Keyword(s):  
Heat Stress ◽  
Protective Effect ◽  
Thermal Tolerance ◽  
Thermal Inactivation ◽  
Survival Curves ◽  
Acid Adaptation ◽  
Circulating Water ◽  
Glucose Levels ◽  
Study Results ◽  
Peptone Water

ABSTRACT The heat resistance of susceptible and multiantimicrobial-resistant Salmonella strains grown to stationary phase in glucose-free tryptic soy broth supplemented with 0.6% yeast extract (TSBYE−G; nonadapted), in regular (0.25% glucose) TSBYE, or in TSBYE−G with 1.00% added glucose (TSBYE+G; acid adapted) was determined at 55, 57, 59, and 61°C. Cultures were heated in sterile 0.1% buffered peptone water (50 μl) in heat-sealed capillary tubes immersed in a thermostatically controlled circulating-water bath. Decimal reduction times (D values) were calculated from survival curves having r 2 values of >0.90 as a means of comparing thermal tolerance among variables. D 59°C values increased (P < 0.05) from 0.50 to 0.58 to 0.66 min for TSBYE−G, TSBYE, and TSBYE+G cultures, respectively. D 61°C values of antimicrobial-susceptible Salmonella strains increased (P < 0.05) from 0.14 to 0.19 as the glucose concentration increased from 0.00 to 1.00%, respectively, while D 61°C values of multiantimicrobial-resistant Salmonella strains did not differ (P > 0.05) between TSBYE−G and TSBYE+G cultures. When averaged across glucose levels and temperatures, there were no differences (P > 0.05) between the D values of susceptible and multiantimicrobial-resistant inocula. Collectively, D values ranged from 4.23 to 5.39, 1.47 to 1.81, 0.50 to 0.66, and 0.16 to 0.20 min for Salmonella strains inactivated at 55, 57, 59, and 61°C, respectively. zD values were 1.20, 1.48, and 1.49°C for Salmonella strains grown in TSBYE+G, TSBYE, and TSBYE−G, respectively, while the corresponding activation energies of inactivation were 497, 493, and 494 kJ/mol. Study results suggested a cross-protective effect of acid adaptation on thermal inactivation but no association between antimicrobial susceptibility and the ability of salmonellae to survive heat stress.

The Look of the Land: Homeowner Landscape Management and Wildfire Preparedness in Minnesota and Florida

2005 ◽  
Vol 18 (4) ◽  
pp. 321-336 ◽  
Author(s):  
KRISTEN C. NELSON ◽  
MARTHA C. MONROE ◽  
JAYNE FINGERMAN JOHNSON
Keyword(s):  
Landscape Management ◽  
The Look

scholarly journals Modelling Bronze Age sheepherding and wool production: the case of the Terramara settlement at Montale, Italy

2020 ◽  
Vol 95 (1) ◽  
pp. 187-204
Author(s):  
Serena Sabatini
Keyword(s):  
Bronze Age ◽  
Landscape Management ◽  
Wool Production ◽  
Wool Textile ◽  
Pastoral Economy ◽  
The Bronze Age

AbstractArguing for an integrated wool-textile economy in the Bronze Age, this paper assesses characteristics and scale of pastoral economy and sheepherding at the Terramare settlement of Montale (Modena province, Italy). Previous studies argued that Montale was a Bronze Age centre of wool production. The present work enhances the understanding of the local textile economy by investigating the evidence for sheepherding and landscape management at the site. It also proposes an interdisciplinary-based approach to investigate and reconstruct pastoral economy and sheepherding strategies in other prehistoric contexts as well.

scholarly journals Variation in upper thermal tolerance among 19 species from temperate wetlands

2021 ◽  
Vol 96 ◽  
pp. 102856
Author(s):  
Marco Katzenberger ◽  
Helder Duarte ◽  
Rick Relyea ◽  
Juan Francisco Beltrán ◽  
Miguel Tejedo
Keyword(s):  
Thermal Tolerance ◽  
Temperate Wetlands ◽  
Upper Thermal Tolerance
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