Introductiontodistribution
Generally,itcanbedividedintoregulardistribution,concentrateddistributionandrandomdistribution.Ifeachindividualinthepopulationlivesindependentlyanddoesnottouchotherindividuals,itisrandomlydistributed.Suchadistributionexistsundertheconditionoffairlyconsistentenvironmentalconditionsandnoclustering;butfewindividualsinthepopulationarerandomlydistributed;Someinvertebratesonthegroundintheforest,especiallyspiders,appeartoberandomlydistributed;themooselivingincentralNewfoundlandarealsorandomlydistributedinwinter,butwhentheyareclustered,theyarenolongerrandomlydistributed.Thecentralizeddistributionisirregular,anditislikelytotransformintoauniformregulardistributionorrandomdistributionafterbeingclustered.Whenanimalscanoccupymorespacethantheyneed,theirdistributionislesshindered,andtheyareoftendistributedregularly.Regulardistributionisduetotheexistenceofinternalstrugglesbetweenthepopulations,andtheexistenceofsmallcirclesofself-survivalamongthecompetingentities.Thedistancebetweenthecirclesisnotfarornear,soitisuniformandregular.
