AGGREGATIONS

THE REACTIONS MADE BY LARGE POPULATIONS ON THEIR HABITAT SHOW CONSPICUOUS EFFECTS. DUE TO THE OCCURENCE OF WATER CONDITIONING, PHYSICAL AND CHEMICAL CHANGES OCCUR AS A RESULT OF ORGANISMS LIVING IN IT. COMPARED TO UNCONDITIONED WATER, THESE CHANGES MAY EITHER PROVE TO BE HARMFUL OR BENEFICIAL ON THE ORGANISMS INTRODUCED INTO THE WATER AFTER THE ORIGINAL ORGANISMS HAVE BEEN REMOVED. THE MARINE FLATWORM WILL SURVIVE MUCH LONGER, WHEN TRANSFERRED TO FRESH WATER CONDITIONED EITHER BY THE PRESENCE OF LIVING OR DEAD  INDIVIDUALS  OF THE SAME SPECIES OR BY THE PRESENCE OF FRESH WATER SPECIES OF FLATWORMS, THAN THEY DO IN UNCONDITIONED WATER. AGGREGATIONS ENSURE  LONGER SURVIVAL  OF ORGANISMS IN TOXIC  SOLUTIONS  THROUGH FASTER GROWTH AND GREATER REPRODUCTION.

BENEFITS DERIVED FROM AGGREGATIONS IN TERRESTRIAL ANIMALS ARE ALSO WELL DEPICTED IN HONEYBEES WHEN THEY FORM CLUSTERS AND MAINTAIN  A MASS TEMPERATURE SEVERAL DEGREES ABOVE OUTSIDE TEMPERATURES. WHEN THERE IS DANGER OF OVERHEATING, THE BEES IN THE HIVE SPREAD OUT ON THE COMBS AND FAN WITH THEIR WINGS TO CREATE A CIRCULATION OF AIR.