00463nam a2200193 a 450000100080000000500110000800800410001910000170006024500440007726000410012130000100016265000120017265000110018465000130019565000130020865300180022165300120023970000180025111723431997-10-30       1985    bl uuuu      00u1 u    #d1 aKREBS, J. R.  aAn introduction to behavioural ecology.  aSunderland: Sinauer Associatesc1985  a292p.  aecology  aAnimal  aEcologia  aZoologia  aComportamento  aHabitos1 aDAVIES, N. B.