Is mate fidelity related to site fidelity? A comparative analysis in Ciconiiforms

Article Abstract:

A new study investigates the possible links between site fidelity and divorce rate in 42 bird species of the order Ciconiiforms. The study finds a significant association between site fidelity and divorce rates.

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Energetically costly precopulatory mate guarding in the amphipod Gammarus pulex: causes and consequences

Article Abstract:

The energetic cost of PCMG in male G.pulex indicate that such a cost is more likely to result from pair formation than from the cost of carrying the female. The relation to sexual conflict over PCMG duration and the ability of males to overcome female resistance are discussed.

Science & research, Sexual behavior in animals, Animal sexual behavior, Animal behaviour, Animal sexual behaviour

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Predictability, chaos and coordination in bird vigilant behaviour

Article Abstract:

The nature of the scanning dynamics of foraging birds has long been debated. Data on vigilance patterns in terns has been compared to a model using nonlinear forecasting, but the comparison is questionable. A MATLAB program was applied to sandpiper data and the results seem to be consistent with previous analyses (Ferriere and colleagues, 1996), that the underlying dynamics of scanning are chaotic. However vigilance may or may not be chaotic, depending perhaps on species, the individual and environmental conditions.

Attention (Psychology), Attention

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