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From Hawks and Doves to Self‐Consistent Games of Territorial Behavior
TLDR
A standardized empirical approach to quantify prior‐residence effects is suggested, suggesting a self‐consistent model with feedbacks between individual behavior and population dynamics that produces qualitatively different frequency‐dependent selection on intruders (floaters) than on territory owners.
Shoal composition determines foraging success in the guppy
TLDR
This study highlights a possible mechanism by which interindividual variation in behavioral types is maintained in a population of guppies using an overhead fright stimulus and suggests potential foraging benefits to bold individuals through associating with shy individuals.
Why do female migratory birds arrive later than males?
TLDR
The results support the mate opportunity hypothesis as an explanation of why protandry is the norm in migratory systems, and show that the effects of sex ratio biases are much stronger than those of EPY production.
Unpredictability in food supply during early life influences boldness in fish
TLDR
It is predicted that individuals that experience temporally unpredictable food supplies will engage in more risky behavior than those experiencing a predictable food supply and that unpredictability in early life can influence boldness in guppies.
Mate guarding, male attractiveness, and paternity under social monogamy
TLDR
Using game-theory modeling, it is shown that the relationship between evolutionarily stable mate-guarding behavior and the risk of cuckoldry can be complicated and nonlinear.
The role of individuality in collective group movement
TLDR
If the results found here can be generalized across species and contexts, then although individuality is not entirely lost in groups, social conformity and group-size-dependent effects drive how individuals will adjust their behaviour in groups.
Predation Risk as a Driving Force for Sexual Segregation: A Cross‐Population Comparison
TLDR
It is concluded that sexual segregation in guppies is consistent with the predation risk hypothesis: sexual segregation results from a combination ofpredation risk driving males (the more vulnerable sex) into less risky habitats and females gaining benefits of reduced sexual harassment by remaining in high‐predation environments.
Plasticity in male courtship behaviour as a function of light intensity in guppies
TLDR
Male mating behaviour in the Trinidadian guppy Poecilia reticulata is phenotypically plastic in response to recent light environment, which may have implications for understanding how animals cope with anthropogenic environmental change.
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