Temperature as ecological factor its impact on animal life. Animals can tolerate temp. from -10 to 50 ⁰C Praying mantis can survive at 62 ⁰C whereas certain bacteria can live at 90 ⁰C. Animals tolerating diff. range of temperature. Stenothermal and eurythermal organisms. Enzymatic activity are controlled by certain temp ranges. E.g. Human 30 to 40 ⁰C. Reproduction is controlled by temperature Activities are controlled by temp. hibernation, aestivation and migration. Morning lower temp. make animals sluggish. Animals are distributed according to temp. tolerance in terrestrial and aquatic body (thermocline).

1. TEMPERATURE
PROF. S. D. RATHOD
Climatic factors

2. Surface temperature of earth
0
10
20
30
40
50
60
70
80
0 1m 2m 300m
Earth surfaceTemp
Temp
-2m

3. Oceanic currents

4. Oceanic upwelling

5. Wind formation

7. Aquatic body temperature regime

8. Thermal stratification in Lakes

10.  Winter stratification hinders the
photosynthesis, thus causing oxygen
depletion and mass kill of organisms
 During summer stratification metalimnion
prevents the mix of surface (epilimnion)
oxygen rich layer with hypolimnion.

11. Effect of temperature on
organisms
 Animals can tolerate temp. from -10 to 50 ⁰C
 Praying mantis can survive at 62 ⁰C whereas
certain bacteria can live at 90 ⁰C.
 Animals tolerating diff. range of temperature.
 Stenothermal and eurythermal organisms.
 Enzymatic activity are controlled by certain
temp ranges. E.g. Human 30 to 40 ⁰C.

12. Temp. tolerance in organisms
P’mantis can tolerate 60 ⁰C
Side winder can live in 0 ⁰C to 50 ⁰C
Sulfur bact. can live at 90 ⁰C
Mussels are eurythermal

13. Temperature and size of organisms
 Colder region animals tend to grow bigger in
size.

14.  Cold region birds have slender wings.
 Cold region fox has short ears, snout and other
terminals.
 Snow fox Dessert fox

15.  Temperate shrimp Tropical shrimp

16. Seasonal temperature and
organisms

17.  Reproduction is controlled by temperature
 Activities are controlled by temp.
hibernation, aestivation and migration.
 Morning lower temp. make animals sluggish.
 Animals are distributed according to temp.
tolerance in terrestrial and aquatic body
(thermocline).

18. THANK YOU