منابع مشابه
the investigation of the relationship between type a and type b personalities and quality of translation
چکیده ندارد.
Tool-making and tool-using in the northern blue jay.
Laboratory-raised Northeirn blue jays (Cyanocitta cristata) have been observed tearing pieces from pages of newspaper and utilizing them as tools to rake in food pellets which were otherwise out of reach. The frequency of this behavior was dependenit upon the motivational state of the jay and the presence of food pellets.
متن کاملSearch Image Formation in the Blue Jay (Cyanocitta cristata).
Blue jays trained to detect Catocala moths in slides were exposed to two types of slide series containing these moths: series of one species and series of two species intermixed. In one-species series, detection ability increased with successive encounters with one prey type. No similar effect occurred in two-species series. These results are a direct demonstration of a specific search image.
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Figure 1. Location, species identification and morphology of the spade-toothed beaked whale (Mesoplodon traversii). (A) Location of partial skulls found on the Chatham and White Islands, New Zealand, on Robinson Crusoe Island, Chile (red squares) and the two recently stranded specimens discovered on Opape Beach, New Zealand (black circle). (B) Neighbour-joining tree of control region and cytoch...
متن کاملResurrection and resilience of the rarest butterflies
For as long as I can remember, I have been attracted to things that are rare. As a child, these things included coins, stamps, and football cards. When I was invited as a young professor to lead efforts in science and conservation of one of the world’s rarest butterflies, I accepted enthusiastically. Beginning in 2002, I focused my efforts on conservation and recovery of St. Francis’ Satyr (Neo...
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ژورنال
عنوان ژورنال: Blue Jay
سال: 1967
ISSN: 2562-5667,0006-5099
DOI: 10.29173/bluejay3253