For billions of years, all life in the ecosystem has relied on Earth’s predictable rhythm of day and night.
It is encoded within the DNA of all living creatures. Living creatures depend upon Earth’s daily cycle of sunshine and dark rhythm to take care of their life-sustaining behaviors like nourishment, reproduction, and sleep.
Animals attracted to light
Light does attract many animals. Campers usually burn fire to stay safe from animals. Raccoons are the foremost fearless scavengers and are likely to be attractive by an easy light. They are comfortable near light despite being nocturnal. Also, a pack of dogs, wolves, or coyotes will be attracted by light to look for food near light. Animals with rabies have altered state of mind and can be interested in light.
Animals not attracted to light
Many species of wildlife are deterred when faced by a light or fire. Wild animals like wolves and coyotes tend to avoid humans and thus avoid places with light. Nocturnal animals find the light to be uncomfortable because looking into the light can cause them pain.
Effects of light on mammals
All life on earth believes the natural rhythm of day and night. Unfortunately, humans have disrupted this cycle of nature by lightning up the night. A variety of nocturnal mammals exposed to artificial light experience blockage in the production of certain hormones that are produced during dark hours. Light in the dark can reduce the number of hours for several mammals that they need to seek out, resulting in hungrier animals.
Effects of light on insects
Insects that fly to lights may land nearby to an man-made light and should remain there for the remainder of the night. These inactive hours disrupt the ecosystem by impacting their reproductive cycle. Not only these species cycles are disrupted but they are also pollinators for therefore many plants. For example; night-blooming flowers depend upon moths for pollination.
Effects of light on birds
Many species of birds migrate in the dark. These migrating and nocturnal birds use the light from the moon, stars, and setting sun to navigate during migrations. Their navigational aids are covered by artificial light. Artificial lights interfere with their instinctive behavior. They become trapped within the cities and become susceptible to survival.
Effects of light on animal movements
The influence of light on the movement of animals are often seen in lower animals. Positively phototactic animals like Euglena and Ranatra are attracted by a light source, while negative phototactic animals like planarians and slugs are deterred by light.
Light pollution can lead many species to their demise
Nocturnal animals sleep during the day and are active at night. But light pollution has disrupted their environment by turning night into day. The glare of artificial lights has adverse impacts on wetland habitat, whose nighttime maybe a breeding time. Artificial light draws away turtles from the beach where they hatch in the dark.
Light is meaningful to several animals. But artificial lights can create a fatal attraction. Light pollution is staggering in the disrupting ecosystem. It can disrupt the migratory patterns of animals, can change their competitive interaction and predator-prey relations.