Russell, Andrew F <br/><br/>
Avian mobbing: byproduct mutualism not reciprocal altruism.  [electronic resource] 

 -  Trends in ecology & evolution  Jan 2009 
 - 3-5; author reply 5-6 p.  digital 
<br/><br/> Publication Type: Comment; Letter 
<br/><br/><label>ISSN: </label>0169-5347 
<br/><br/><label>Standard No.: </label>10.1016/j.tree.2008.09.003  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Altruism<br/>Animals<br/>Behavior, Animal--physiology<br/>Birds--physiology<br/>Symbiosis--physiology