Wood Lice

Woodlice are one of the few land dwelling groups of the shape Crustacea. They are an interesting group, several common species exhibit variable degrees of adaptation to life on land, galacticly depending on their dust structure and number of lungs (some have none, some cardinal pairs and two species have five pairs of lungs). As crustaceans they do need to rest where there is moisture, especially during the day. All species pitch to spend well-nigh of their life nether logs, stones, bark, decaying leaves and in other(a) break away, down in the mouth places, emerge at night to feed and socialise. The woodlice share their habitat with other creatures such as centipedes, millipedes, spiders, slugs, snails, pseudoscorpions, beetles, springtails and earwigs. Other animals like newts, frogs, toads and small mammals as well as use these habitats for shelter and they are also predators - consuming large quantities of woodlice.

Woodlice are negatively phototactic - they move away from a barge source. They have this ability because they possess light receptors (ocelli) that are clarified to levels of illumination.



In their natural environment, dark places are normally damp places whereas bright places tend to be drier and warmer. Because woodlice need humid conditions as well as dampness, they will move towards dark places which tend to be humid.







In dry conditions, woodlice and other isopods tend to randomly wander about. However, when they reach a humid, damp environment, they bring about sluggish and congregate in large numbers, often displaying a total lack of locomotion.



This is of course a taxis response sort of than a kinesis.



I think that covers the gist of it.



Experimental set-ups to licence this phototactic response are not that difficult to devise. The simplest involve placing a dozen or so woodlice on damp kitchen pass over in a high-walled petri dish or similar under normal room illumination. A piece of black shadowy card, black cloth or aluminium foil is displace over the...If you want to get a full essay, gear up it on our website: Orderessay



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