An empirical investigation of two assumptions of motivation testing in captive starlings (Sturnus vulgaris): Do animals have an energy budget to 'spend'? and does cost reduce demand?

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  2. Lucy Asher
  3. Professor Melissa Bateson
Author(s)Asher L, Kirkden RD, Bateson M
Publication type Article
JournalApplied Animal Behaviour Science
Year2009
Volume118
Issue3-4
Pages152-160
ISSN (print)0168-1591
ISSN (electronic)1872-9045
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PublisherElsevier BV
URLhttp://dx.doi.org/10.1016/j.applanim.2009.02.029
DOI10.1016/j.applanim.2009.02.029
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