Social networks in the guppy ( Poecilia reticulata )

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Social networks in the guppy (Poecilia reticulata).

Social network theory is used to elicit details of the social structure of a population of free-ranging guppies, Poecilia reticulata. They were found to have a complex and highly structured social network, which exhibited characteristics consistent with the 'small world' phenomenon. Stable partner associations between individuals were observed, a finding that fulfils the basic prerequisite for ...

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Free-ranging groups are frequently assorted by phenotypic characters. However, very little is known about the underlying processes that determine this structuring. In this study, we investigate the mechanisms underlying the phenotypic composition of shoals of guppies (Poecilia reticulata) in a high-predation stream in Trinidad’s Northern Mountain Range. We collected 57 entire wild shoals, which...

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Avoidance Learning and "Personality" in the Guppy (Poecilia reticulata)

The authors examined the relationships between 2 "personality" dimensions (Approach and Fear Avoidance) and 2-way active avoidance learning performance in the guppy (Poecilia reticulata). Contrary to expectations (based on prior rodent studies), higher fearfulness facilitated both earlier appearance and acquisition of the shuttlebox avoidance responses, especially in the less exploratory and ac...

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ژورنال

عنوان ژورنال: Proceedings of the Royal Society of London. Series B: Biological Sciences

سال: 2004

ISSN: 0962-8452,1471-2954

DOI: 10.1098/rsbl.2004.0206