Environment: Animals on clean-up duty
We generally use dustbins for trash or solid waste in our homes, schools and work places, where waste in the form of papers, organic waste, metals, glass, cloth, etc. are dumped to maintain environmental integrity and ensure cleanliness and sanitation.
Environmental ethics demands that we keep the environment clean and green for a healthy living and to do away with germs that cause serious diseases due to contamination. In this context, some conscientious people play environmentally-responsible roles in keeping the environment healthy by observing cleanliness, planting plants, dumping waste properly, avoiding littering, reusing and recycling materials, reducing less waste, etc.
Having said this, there are some birds and animals that are also very environment-friendly in terms of keeping the environment clean by consuming the dead fleshy and boney materials. Such consumers are known as ‘scavengers’, which have also been referred to as ‘bio-bins’ because these species are serving as natural dustbins to gulp down the fleshy remains mostly left from predators or the trash human beings throw as garbage. Some scavengers are vertebrates such as vultures, hyena, crow, kites, while some are invertebrates such as crabs, beetles, flies, etc.
There are both omnivorous and carnivorous animals that feed on carrion or dead animals, so they play their important role in maintaining the environment clean and removing germs from the environment. Their sharp eyesight and a strong sense of smell help them trace the carrion and rotten food source.
Had there been no scavenging animals and birds, how filthy and dirty our environment would have been! But nature is performing this role of environmental sanitation with the help of these bio-bins. It is believed that the role of scavengers and decomposers is so significant in the ecosystems that in their absence, dead bodies would not decompose on the surface of earth.
Scavengers also play an important role in the food web as they break down organic material and recycle it into the ecosystem as nutrients to maintain a healthy habitat. When an animal is rotting, it serves as incubator for many infectious materials which become a health hazard to living animals because of the diseases that can easily spread. Here scavengers play their important role of eating them and quickly breaking down the dead biomass for the benefit of all living organisms. In this way, they serve as natural recycling machines.
They are well-adapted to many places as they would feed on any meat, whether fresh or rotten, as compared to animals with restricted diet. There is also competition among the scavengers when they gather at a carcass — the greater the number of scavengers, the quicker becomes the consumption and removal of the carcass.
All scavengers that perform the clean up duty should be appreciated as they make our world a cleaner place, because they are serving as ecosystem guardians.