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Thermoregulation In Invertebrates

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Princess Rosh

on 30 May 2014

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Transcript of Thermoregulation In Invertebrates

Thermoregulation is the process to keep the body temperature in a specific narrow range, even if the environmental temperature changes.

Importance of Thermoregulation
Diceroprocta apache
Ground dwelling arthropods
Unique mechanism for surviving in extreme temperature

For example:
Temperate zone insects

Other insects
In Arthropods
Moth and Bumblebees

warm up prior to flight
In large & flying insects
Have no thermoregulatory mechanisms

low metabolic rate,

Thermoregulation In Invertebrates
In Higher Invertebrates
Themoregulation In Invertebrtes
Presented to :
Dr. Irum Anjum
Presented BY :
Maryam Shakeel

Controlls body's metabolic rate
higher temperatures increase the growth rate or reproductive rate of temperate zone insects,
Specific receptor

Arthropods; such as insects, crustaceans can sense thermal variations
Directly sense difference in environmental temperature
to prevent overheating during flight
evolved mechanism
Blood Circulation through flight muscle
Basking insects
postural adjustment
caterpillars and locusts
Desert dwelling beetles
formation of Wax bloom
Effect of Colours
Black Beetles more active in day then white beetles
Greater heat Greater metabolism
This dragonfly's "
" posture is an adaptation that minimizes the amount of body surface exposed to the sun.

This posture helps reduce heat gain by radiation.
Endothermic Temperature Regulation in Insects
FIG #2
Graph shows the change in temperature before flight in moth
Fig #3
Blood moves across the thoracic flight muscle of insect
Fig # 4
Sweat pores in Diceroprocta apache

There are three pores found on dorsal side of D.apache, these pores involve in evaporation
Fig# 5

Dragonfly's posture for thermoregulation
Fig #7
Thermoregulation In Locusts
A Book of Zoology by Miller Harley
Course :
Animal Forms & Function




Feed on plant fluid
Adaptation for thermoregulation
Behavioural Mechanism
Physiological Mechanism
Full transcript