Given that the amplitude in the thermal tolerance polygon was mainly due to an increase in the lower limits of the interval and that no minimum temperature threshold could be determined, thus suggesting that the populations from YP are near their upper thermal limit.
It had been documented that the minimum temperature threshold for golden tilefish is 9 C. Tempereature observations and measurements are obtained via interpolated observations.
A minimum temperature threshold of 24 °C is consistent with the known optimum temperature range for survival in North Queensland.
Using our device, the minimum temperature threshold to yield uniform SNPs was found to lie at 100 °C; higher temperatures (110 °C) also yielded SNPs while lower temperatures (90andd 95 °C) resulted in TMV and SNP mixtures.
In addition, degree days to egg observation were calculated for each site (a statistic commonly used to predict flowering date in plants; [ 63]), using the following approach: From the 1st January 2011, degrees above the threshold for development (set at 5°C) were calculated per day using the formula: ((daily maximum temperature + daily minimum temperature)/2 -threshold value.
The most important factor (as indicated by the first split) was the 4-week lagged moving average minimum temperature, with a threshold of 24 °C.
These habitat changes were most closely related to patterns in minimum temperatures and hot temperature thresholds (days > 20 °C), presumably because temperate algae require cool periods for successful reproduction and recruitment (even if the adults can survive warmer temperatures).
When heat waves were defined using HI12, which requires exceeding both minimum and maximum daily temperature thresholds for ≥ 2 consecutive days, the odds of PTB was significantly lower on heat wave days compared with non heat wave days (9.7% decrease; 95% CI: –16.4, –2.5%).
The Taiwanese study, while considering several temperature thresholds and minimum number of consecutive cold days when defining cold waves [ 18], did not consider the potential lagged effects of cold waves, i.e. the possible persistence of increased mortality after the cold wave has finished.
For example, studies have used thresholds of mean temperature (Hajat et al. 2006), apparent temperature (Smoyer 1998), or combinations of thresholds of apparent and minimum temperature (Robinson 2001; Weisskopf et al. 2002).
