Alexei Volkov
Plastic pollution is a pressing environmental issue, with plastic waste accumulating in oceans, forests, and on land. It is harmful to wildlife and can cause death and injury through ingestion and entanglement. Plastic takes hundreds to thousands of years to degrade, and during this time, it can be ingested by animals, leading to intestinal blockages and toxic contamination. It can also entangle and trap animals, causing injury, starvation, and increased vulnerability to predators. Plastic pollution affects all wildlife, from microscopic animals to large predators, and has been found in marine species, terrestrial species, and birds. The impact of plastic pollution on wildlife is widespread and devastating, with nearly 2,100 species, including endangered ones, known to be affected.
| Characteristics | Values |
|---|---|
| Plastic takes a long time to decompose | Plastic can take hundreds to thousands of years to decompose |
| Plastic is toxic | Plastic contains toxins which can transfer to the fatty tissues of organisms that ingest them |
| Plastic affects all life | Plastic affects life from microscopic animals to large predators |
| Plastic is widespread | Plastic is present in the deepest point of the Mariana Trench to the top of Mount Everest |
| Plastic causes intestinal blockages | Plastic ingestion can cause intestinal blockages and damage in animals |
| Plastic leads to starvation | Plastic ingestion reduces the storage volume of the stomach, causing starvation |
| Plastic causes entanglement | Plastic can entangle marine mammals and fish, leading to starvation, injury and vulnerability to predators |
| Plastic disrupts habitats | Plastic disrupts habitats, making it hard for some species to live and breed naturally |
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What You'll Learn
Plastic ingestion
Plastic pollution in oceans and forests has become a global crisis, with billions of pounds of plastic found in swirling convergences that make up about 40% of the world's ocean surfaces. This crisis affects marine ecosystems and terrestrial habitats, with animals suffering the consequences of plastic ingestion. For example, a wild elephant in Periyar, India, died from ingesting plastic waste discarded by pilgrims.
Microplastics, which are tiny plastic fragments, are another concern. They can be ingested by animals of all sizes, including humans, through contaminated food and water. Microplastics can release additives like phthalates and Bisphenol A (BPA), disrupting the hormone systems of vertebrates and invertebrates. They can also carry bacteria, viruses, and protists, acting as vectors for diseases.
The impact of plastic ingestion on wildlife behaviour and health can vary depending on factors such as the type of plastic, the amount ingested, and the animal's health. However, it is clear that plastic ingestion is a significant threat to wildlife, leading to choking, internal injuries, and long-term health issues.
To address this issue, it is crucial to reduce plastic consumption and properly dispose of plastic waste. By doing so, we can help protect wildlife and ensure their safety from the harmful effects of plastic ingestion.
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Plastic entanglement
Plastic pollution is a global crisis, with plastic accumulating in oceans and on beaches. This has a direct and deadly effect on wildlife, with thousands of marine animals killed each year due to plastic ingestion or entanglement. Plastic entanglement is a significant issue, with many marine animals, such as whales, dolphins, seals, sea lions, and sea turtles, becoming entangled in plastic debris and fishing gear.
The impact of plastic entanglement goes beyond the immediate physical harm. It can compromise the entangled animal's ability to capture food, sense hunger, escape from predators, and reproduce. It also decreases their overall body condition and impairs their locomotion, making it difficult for them to move and survive in their natural habitats.
The problem of plastic entanglement is widespread, affecting a large number of marine species. According to a Convention on Biological Diversity report, entanglement in and ingestion of marine debris by marine animals have increased by 40% in the last decade. The report reviewed 280 papers, documenting entanglement and ingestion by 663 species, impacting 46,000 individual animals.
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Habitat disruption
Plastic pollution is a pressing environmental issue, with the rapidly increasing production of disposable plastic products overwhelming the world's ability to deal with them. Plastic waste has become so ubiquitous that it has prompted efforts to write a global treaty negotiated by the United Nations. Plastic pollution affects wildlife in numerous ways, one of which is habitat disruption.
Plastic waste can disrupt natural habitats, making it difficult for some species to live and breed naturally, leading to depletions in populations. This disruption can take many forms, from physical entanglement and obstruction to chemical contamination.
Large plastic items can entangle marine mammals and fish, preventing them from escaping and leading to starvation, injury, and increased vulnerability to predators. Abandoned fishing nets and ropes can also smother and break coral reefs, hindering their healthy growth. This disruption to coral reefs, which provide essential habitats for numerous marine species, can have far-reaching consequences for the diversity and health of marine ecosystems.
Small plastic fragments can float on the water surface, misleading seabirds and other marine species into consuming them. This ingestion can lead to suffocation, starvation, and toxic contamination. As plastics break down into smaller microplastics, they become invisible to the naked eye, making it even easier for wildlife to accidentally consume them. Microplastics can also adsorb toxins, which then transfer to the fatty tissues of the organisms that ingest them. These toxins can accumulate and magnify through the food chain, affecting not only marine life but also humans who consume seafood.
In terrestrial environments, plastic waste dumped near or in unprotected wild land poses a significant threat to wildlife habitats. Animals may become trapped or injured by plastic debris, and the chemical leaching of plastics can contaminate soil and nearby water sources. A 2020 study found that terrestrial microplastic pollution led to a decrease in species living below the surface, such as mites, larvae, and other tiny creatures. This decline in essential components of soil fauna contributes to reduced soil fertility and overall ecosystem health.
The pervasive nature of plastic pollution means that habitats across the globe are affected, from the deepest ocean trenches to the highest mountain peaks. No ecosystem is untouched by the presence of plastic, and the long-term impacts of this habitat disruption are yet to be fully understood.
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Toxic contamination
Plastic waste is a global crisis that affects wildlife in forests and oceans. It is estimated that marine plastics contribute to the death of more than 100,000 marine mammals every year, and millions of animals are killed by plastic annually. Plastic pollution is especially harmful to wildlife because it takes a long time to decompose, with estimates ranging from hundreds to thousands of years. This means that plastic waste can continue to harm wildlife for many lifetimes after its convenience value to humans has expired.
Microplastics are also ingested by marine wildlife, causing intestinal blockages and damage, often leading to death. These tiny particles are easily consumed by wildlife because they are invisible to the naked eye. They can also adsorb toxins, which are then transferred to the fatty tissues of the organisms that ingest them. Sea turtles, for example, mistake floating plastic garbage for food, which can cause choking, internal injury, and death. Research indicates that half of the sea turtles worldwide have ingested plastic, and plastic ingestion has also been found to reduce stomach volume, causing starvation.
In addition to marine wildlife, land-based mammals, including elephants, hyenas, zebras, tigers, camels, and cattle, have accidentally consumed plastic waste, resulting in unnecessary deaths. For example, in 2018, a wild elephant in Periyar, India, died from ingesting plastic waste discarded by pilgrims.
The impact of plastic pollution on wildlife is widespread and devastating, and it is essential to address this issue through reduced consumption, reuse, and proper disposal of plastic waste.
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Intestinal blockages
Plastic pollution is a critical threat to wildlife, with 8-10 million tons of plastic entering the ocean every year. This plastic waste does not simply disappear but takes hundreds of years to break down into smaller pieces, which are often ingested by marine animals. These indigestible materials can cause intestinal blockages, leading to starvation, malnutrition, internal injury, and even death.
Sea turtles, for example, often mistake floating plastic garbage for food, which can result in blockages in their digestive systems. Research indicates that half of the sea turtles worldwide have ingested plastic, and this number is expected to increase. Plastic ingestion can cause them to feel full, leading to starvation. It can also result in choking and internal injuries, or even death.
Seabirds are another group that is vulnerable to intestinal blockages from plastic ingestion. Studies show that almost every species of seabird consumes plastic, and this number is predicted to rise to 99% by 2050. The plastic reduces the storage volume of their stomachs, causing starvation. Additionally, the plastic particles can accumulate toxins, posing additional health risks to birds.
Sharks and other fish are also at risk of intestinal blockages from microplastics, which they bring in through their gills. A study by the University of Exeter suggests that it takes up to six times longer for marine organisms to rid themselves of microplastics drawn in through gills compared to those ingested through the mouth. These microplastics can then move up the food chain, affecting larger fish, marine mammals, and even humans.
The impact of plastic pollution on wildlife is widespread and deeply concerning, with animals often mistaking plastic debris for food. Intestinal blockages can lead to distress, starvation, malnutrition, and death. Collective action, policy changes, and individual choices are vital to combat this issue and safeguard the well-being of wildlife.
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Frequently asked questions
Plastic waste in the ocean can entangle marine animals, making them vulnerable to starvation, injury, and predators. It can also be ingested by marine animals, leading to intestinal blockages, starvation, and toxic contamination. Plastic pollution in the ocean has impacted over 800 marine and coastal species and is projected to be consumed by 99% of marine species by 2050.
Plastic waste on land can be ingested by terrestrial animals, leading to intestinal blockages and death. It can also trap and injure land animals and disrupt their habitats, making it difficult for some species to live and breed naturally. Plastic pollution has been found to decrease populations of soil fauna, such as mites, larvae, and other tiny creatures, leading to reduced soil fertility.
Marine animals, such as seals, whales, turtles, and birds, can become entangled in abandoned fishing gear or strangled by discarded six-pack rings. Sea turtles may mistake floating plastic for food, leading to choking, internal injuries, or starvation. On land, elephants, hyenas, zebras, tigers, camels, and cattle have accidentally consumed plastic waste, resulting in unnecessary deaths.
