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Matutinal animals are active only after dawn, and vespertine only before dusk. A number of factors affect the time of day an animal is active. Predators hunt when their prey is available, and prey try to avoid the times when their principal predators are at large. The temperature may be too high at midday or too low at night. [2]
It may be argued that if the goal is to avoid human activity, or any other diurnal predator's activity, a nocturnal schedule would be safer. However, many of these animals depend on sight, so a matutinal or crepuscular schedule is especially advantageous as it allows animals to both avoid predation, and have sufficient light to mate and forage. [4]
Although civil dawn marks the time of the first appearance of civil twilight before sunrise, and civil dusk marks the time of the first disappearance of civil twilight after sunset, civil twilight statutes typically denote a fixed period after sunset or before sunrise (most commonly 20–30 minutes) rather than how many degrees the Sun is below ...
People should both make themselves aware that dawn and dusk can be prime time for mountain lion activity and take extra precautions when driving at night, as these felines may be out on the prowl ...
Crepuscular, which describes animals primarily active during the dawn and dusk hours (ex: white-tailed deer, some bats) While circadian rhythms are defined as regulated by endogenous processes, other biological cycles may be regulated by exogenous signals. In some cases, multi-trophic systems may exhibit rhythms driven by the circadian clock of ...
The walking trail and playground are open daily from dawn to dusk. The Corpus Christi and Ben Garza gyms will be closed Thursday and Friday. The After Hour Kid Power Program will be closed Monday ...
An astronomical (or astronomic) timer calculates dawn and dusk times (tracking the sun position) for each day of the year based on the latitude and longitude (or just north/central/south and time zone on more cheaply made ones), and the day of the year (month and date), programmed by the user upon installation in addition to the usual time of day, except in the case of GPS enabled astronomic ...
Sample testing of mosquitoes in Rhode Island, Connecticut, and Massachusetts have also turned up positive for EEE, as officials urge residents to schedule outdoor activities outside of dusk to dawn.