A framework for elucidating the temperature dependence of fitness random dating definition

They argued (5, 6) the thermal sensitivity of diverse activities can be described by simple BA kinetics (equation 1 in ref.

(7) substantially advance this debate by synthesizing and analyzing data on 1,072 thermal sensitivities (on a within-species basis) of diverse physiological and ecological traits ( was strongly right-skewed (approximately log-normal), such that the median value was well below the mean (0.55 e V vs. Partitioning the data, they found that this skew was general and characterized different traits, taxa, trophic groups, and habitats.

Thus, most estimates of ) on a log scale for 80% to 90% of cases, as predicted.

He noted (8) that ant activity should be governed by the same physical processes (e.g., temperature) that control chemical and metabolic interactions.

Then, in a second PNAS article on ant ”thermokinetics” (9), he found that ant thermal sensitivity was consistent with thermodynamic [i.e., Boltzmann–Arrhenius (BA)] expectations.

A molecular view of liquids can be used for a qualitative picture of decrease in the shear (or bulk) viscosity of a simple fluid with temperature.

As the temperature increases, the thermal velocity increases.

(7) have significantly raised our understanding of empirical patterns and especially of variation in the thermal dependence of organisms.

Elucidating the causes underlying striking variation in may reflect the nature of the traits themselves: for example, indices of population growth (intrinsic rate of population growth vs.

He showed that walking speed of ants increased directly and predictably with temperature, at least to some “optimal” or maximum-activity temperature.

In fact, he could predict air temperature to within 1 °C, merely by measuring ant walking speed!

The temperature dependence of liquid viscosity is the phenomenon by which liquid viscosity tends to decrease (or, alternatively, its fluidity tends to increase) as its temperature increases.

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