Changes

|points = <br>

|points = <br>

* Cats often adapt their activity patterns to the presence of humans.

* Cats often adapt their activity patterns to the presence of humans.

* However, experimentally cats show variation in activity pattern and ability to adapt to light conditions, which may be why some individuals exhibit problematic nocturnal activity.

* However, experimentally cats show variation in activity pattern and ability to adapt to light conditions, which may be why some individuals exhibit nocturnal activity which is problematic for owners.

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==Timing of Activity==

==Timing of Activity==

==Relationship with Human Activity==

==Relationship with Human Activity==

The activity of domestic cats is also significantly influenced by human activity. In conditions that more closely resemble a normal domestic environment, cats that were more closely involved with their owners showed greater levels of activity during daylight<ref>Piccione, G., Marafioti, S., Giannetto, C., Panzera, M., Fazio, F., (2013) Daily rhythm of total activity pattern in domestic
cats (''Felis silvestris catus'') maintained in two different housing conditions. ''Journal of Veterinary Behavior.'' ePub online.</ref>. Given that man-made lighting, including light pollution, maintains the outdoor environment in towns and cities at a constant level of illumination that resembles the crepuscular period, many cats are exposed to a distorted photoperiod that does not favour proper entrainment and is likely to favour more idiosyncratic patterns of behaviour. For many generations domestic cats have been exposed to a different set of selection pressures related to photoperiodicity of behaviour and the availability of prey, such that entrainment would have a much lower survival value.

The activity of domestic cats is also significantly influenced by human activity. In conditions that more closely resemble an average domestic environment, cats that were more closely involved with their owners showed greater levels of activity during daylight<ref>Piccione, G., Marafioti, S., Giannetto, C., Panzera, M., Fazio, F., (2013) Daily rhythm of total activity pattern in domestic
cats (''Felis silvestris catus'') maintained in two different housing conditions. ''Journal of Veterinary Behavior.'' ePub online.</ref>. Given that man-made lighting, including light pollution, maintains the outdoor environment in towns and cities at a constant level of illumination that resembles the crepuscular period, many cats are exposed to a distorted photoperiod that does not favour proper entrainment and is likely to favour more idiosyncratic patterns of behaviour. For many generations domestic cats have been exposed to a different set of selection pressures related to photoperiodicity of behaviour and the availability of prey, such that entrainment would have a much lower survival value.

==References==

==References==