Avalos, Gerardo <br/><br/>
Effect of artificial feeders on pollen loads of the hummingbirds of Cerro de la Muerte, Costa Rica.  [electronic resource] 

 -  Revista de biologia tropical  Mar 2012 
 - 65-73 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0034-7744 
<br/><br/><label>Standard No.: </label>10.15517/rbt.v60i1.2362  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Adaptation, Biological--physiology<br/>Animals<br/>Birds--classification<br/>Costa Rica<br/>Feeding Behavior--physiology<br/>Pollen<br/>Pollination--physiology<br/>Population Density<br/>Seasons