How does high temperature affect the ecosystem?

Name: Darina Taskin, 2013

Abiotic factor: temperature

Life is only possible in certain temperature ranges

Living things have a temperature tolerance curve

-> The width and position of the tolerance range differs from type to type

Cold-blooded animals:

(also called ectothermal) adjust their body temperature up to a certain degree to the outside temperature

thus metabolic rate lower than in living beings of the same temperature

Example: fish, reptiles, amphibians

Animals of the same temperature:

(also called endothermic) keep their body temperature constant compared to the outside temperature

They do this through their metabolism

Example: mammals, birds

Thermoregulation:

The ability of an organism to keep its body temperature constant regardless of the outside world

RGT rule (reaction rate temperature rule)

Increasing the temperature by 10 ° C doubles the reaction rate

at a low temperature, the reaction rate is slow

at high temperature the reaction rate is high, but at too high a temperature the enzymes denature

Bergmann's rule

animals of a species of the same temperature are larger in cold regions than in warm regions

The larger the animal at the same temperature, the smaller its surface-to-volume ratio

-> low heat loss

Allen’s rule:

In animals of a species of the same temperature, the body appendages are smaller in colder regions than in warmer regions