Schluter, D., Grant, P. R. <br/><br/>
The distribution of Geospiza difficilis in relation to G. fuliginosa in the Galápagos Islands: tests of three hypotheses.   

 -  1982 
 - 1213-1226.  Article 
<br/><br/> BIB Now: 6216 
<br/><br/><br/>English 
<br/><br/><label>ISBN: </label> Normal 
<br/><br/><label>Subjects--Index Terms: </label>FI, EV  The distribution of Geospiza difficilis in relation to G. fuliginosa in the Galápagos Islands: tests of three hypotheses.  birds, finches, Darwin's finches, distribution  aves, pinzones, pinzones de Darwin, Geospiza, distribución 
<br/><br/><label>Dewey Class. No.: </label>598.883  598.883