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Do woodlice show taxis or Kinesis?
Simple reflex responses of an organism could be a taxis (movements towards or away from stimuli) or kinesis (overall movement caused by increased activity in certain situations). Woodlice show positive photokinetic and negative hygrokinetic responses.
How do woodlice show Kinesis?
Woodlice rely on behavioural adaptations to avoid desicca tion. They move towards dark and humid environments by a kinesis (Sutton, 1972). In addition, woodlice show thigmokinesis. This means they stop moving when they are close to a solid object, including other slaters.
Why do woodlice clump?
Woodlice tend to move quicker in dry places than damp places. You may also see them ‘clump’ together. This helps them to reduce their water loss as it reduces the surface area that is in the open air, as by less air passing their outer layer, less water is lost in that way.
Why do woodlice prefer the dark?
Woodlice do not have a highly developed nervous system but do show some basic forms of behaviour. They have a relatively high surface area to volume ratio and lose water through their surface. This type of behaviour is called kinesis and results in woodlice accumulating in the dark and damp conditions that they prefer.
Why do woodlice not like bright light?
Woodlice have a negative photokinesis- they move faster as the light stimulus increases. This has great survival value because bright places tend to be drier and dark places tend to be damper.
Why do woodlice move away from light sources?
For more on marking an answer as the “Best Answer”, please visit our FAQ. Golly, this takes me back. Woodlice are negatively phototactic – they move away from a light source. They have this ability because they possess light receptors (ocelli) that are sensitive to levels of illumination.
What does a woodlice do in a choice chamber?
You can state that woodlice do have a preference for one set of conditions over another. Animal behaviours in choice chambers may show directional responses (movement directly towards or away from particular stimuli), or may show behaviours such as increasing speed and increase in turning rate.
What’s the best way to keep woodlice alive?
Keep the container covered to exclude light and retain moisture. Place it in a relatively cool and sheltered place out of direct sunlight. Keep the soil moist but not waterlogged. Put a variety of stones, bark and rotting wood on the soil for the woodlice to live in.
How to disprove a null hypothesis in woodlice?
Use a test such as the X 2 significance test to establish whether the final result is significantly different from the expected distribution. If so, the null hypothesis is disproved. You can state that woodlice do have a preference for one set of conditions over another.