Ecosystems in action  [videorecording] / 
 A tropical rain forest  vol. 1  [videorecording] ;  Deserts  vol. 1  [videorecording] ;  The Galapagos Islands  vol. 1  [videorecording] ;  The great lakes ecosystem  vol. 2  [videorecording] ;  A new England pond  vol. 2  [videorecording] ;  The web of life  vol. 2  [videorecording] ; 
Hawkhill Associates Inc. ; writer and producer, Bill Stonebarger 
 - 2 videodisc (DVD) (140 min.) :  sd., col. ;  12 cm. 
<br/><br/> Title from title screen  vol. 1. : A tropical rain forest (24 min.) - Deserts (29 min.) - The Galapagos Islands (21 min.). - vol. 2. : The great lakes ecosystem (21 min.) - A new England pond (23 min.) - The web of life (22 min.) 
<br/><br/>Music and sound, Eric Nelson, Roy Gustarson, Michael Stonebarger  Music and sound, Eric Nelson, Roy Gustarson, Michael Stonebarger 
<br/><br/> This series is designed to help teachers of ecology and environmental studies by providing vivid examples of three different ecosystems for each volume. Each program illustrates general principles of ecology and also stresses what is special about a particular ecosystem 
<br/><br/><label>ISBN: </label> RM616.14 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Biotic communities.<br/>Desert ecology.<br/>Rain forest ecology.<br/>Pond ecology.<br/>Freshwater ecology--Great Lakes (North America).
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Galapagos Islands