What is an invasive species? Invasive species is any animal or plant that comes from a different ecosystem and causes harm to the environment. They are called “invasive” because they reproduce quickly and spread rapidly, causing destruction on people’s health and the ecosystem. Human activities are one of the biggest contributing factors in spreading invasive species from one location to another. People can purchase these invasive plants for their beauty, low maintenance, and fast growing nature.
If it continues to go, then they might all become extinct. For example, also in "Air China Bans Transport of Shark Fins", it states the number of sharks killed every year just by humans. Humans are a bigger threat to sharks than they are to humans. Only a few out of over 400 species are actually a threat to human lives. Over 100 million sharks are murdered by humans every year, and it’s a high number for any animal but it’s endangering to sharks because they don’t breed very quickly due to their biological composition (NewsCurrents Read to Know).
This shows that an environmental threat that blue crabs face is pollution because if about 1 million animals are dying each year because of pollution, we have a serious problem. Furthermore, another ecological hazard that this incredible animal faces is fishing and it’s equipment. According to the text, “Modern fishing methods have created some serious problems for the ocean. The populations of almost all fish species that we eat have shrunken,”(Dignan 14). This proves that another environmental threat that blue crabs faces are fishing because they may not be a type of fish, but, like most crabs, they are fished, caught and sold.
Invasive species are causing harm and killing the rest of the native plants and animals.The insect,the ash borer, deadly to trees, has threatened millions of ash in the Midwest in recent years. This bug is originally native to Asia. Invasive species are plants, animals, or pathogens that are non-native (or alien) to the ecosystem under consideration and whose introduction causes or is likely to cause harm. One invasive plant is Kudzu. Kudzu is a vine that climbs over trees and bushes and grows so rapidly that it kills plants by keeping them from getting |any sunlight.
Invasive species can have harmful effects to the environment such as, affecting the ecosystem; limiting biodiversity; and using resources available to the existing habitats. Invasive species are also recognized in forest and open forest habitats. An example of
Hence, overfishing threatens coastal nations down to the local level, devastating communities whose dominant sources of labor and revenue hinges on healthy, plentiful stocks of fish. Also, marine life imbalance may affect the targeted fishing of top predators such as billfish, sharks and tuna that eventually disturbs marine communities. In fact, it is causing increased abundance of smaller marine animals at the bottom of the food chain. This in turn has impacts on the rest of the marine ecosystem, such as the increased growth of algae and threats to coral reef health. Overfishing is also closely tied to by catch, another serious marine threat that causes the needless loss of billions of fish, along with marine turtles and
Ray Bradbury is among those who are concerned about technology. In “The Veldt” and “There Will Come Soft Rains,” he portrays that technology is harming the world and suggests that technology may lead humankind to its downfall. Bradbury’s vision regarding technology, however, is not true. Instead of harming society, technology is actually improving it. Technology is a beneficial breakthrough because it assists people in difficult or risky tasks, serves as a useful educational tool, and saves lives with its advancement in the medical field.
We can stop this problem by, not flushing or throwing away unwanted medicine and disposing of unwanted medicine at the proper hazardous waste facilities. Protecting oysters also helps the Bay out tremendously. Oysters filter out the water and purify it. Throughout the Bay there have been oyster farms that are protected by the county to help filter the water. Keeping these vital creatures safe could be the key to saving the Bay.
Do you agree that hunting and poaching have negative effects such as drastic decrease in the population of a certain species? (E.g. Sharks, birds) Yes 27 93.1% No 2 6.9% With addition, majority of the people I have surveyed are aware that this is a global problem and this problem is not just affecting a small group of people, but is affecting everyone is the world. Are you aware that this is a global problem? Yes 24 82.8% No 5 17.2% Do you know that this global problem is affecting everyone in the world including us and neighbouring countries?
Tiger Sharks play a massive role in their environment and it makes them into a keystone species. If The Tiger Sharks were gone from tiger bay there would be less sea grass for organisms due to an increase in turtles and Shark bay would lose many of the organisms who feed off the sea grass. These keystone species impact their environments and habits in many ways ranging outside their direct food web. These species are important in keeping the amount of species high in their habitats and are essential in the health and productivity in each habitat. The African Elephant makes far more abiotic differences in their environment by creating things like lakes while the Tiger Shark has mainly biotic factors and many of there changes in the ecosystem are a result of them eating fish and turtles and less about them shaping the land.
They’re also tolerant of a broad range of environmental and climatic conditions, making them able to occupy many habitats. There are concerns that cane toads are the key factor in the decline of many native species. They endanger native frogs by consuming far more prey than them, approximately 200 food items per night, causing native frogs to need to compete for their food. They also possess highly toxic chemical predator defences which can kill many native predators, such as snakes and lizards that attempt to consume them (The biological effects, including lethal toxic ingestion, caused by Cane Toads). Due to these effects on the environment, a solution to the cane toad issue is urgent.
The scientists, who have studied the mussels within Lake Winnipeg, have expressed that this could potentially be a “golden opportunity” (Puxley) in finding a way to prevent the infestation. Though, there is no way of knowing how many mussels were actually killed off during this process. Not only is this experiment dangerous for the environment due to its uncertainty, but its very costly to a province as well, starting at around $500,000 for the decontamination of one single harbor. Last October this experiment was put into action when 400 tonnes of potash were dumped into the harbor, although results looked hopeful, only time will reveal if the fertilizer does good, or only causes more pollution the lakes. In conclusion, the Zebra mussel is a growing nuisance for Canada’s waterways and overall ecosystem.
Their overly aggressive and territorial nature accounts for this. Pairs establish territories and defend them from other mute swans, birds, and mammals. Mute swans often cause the relocation of native birds from nesting and feeding areas. For example, they are responsible for driving the last remaining colony of black skimmers, a state-threatened species, from the Maryland portion of the Chesapeake Bay (Mute Swan…2003). Driving out a species is of less impact than high intensity interactions that can injure or even kill the “intruders”.
Sharks have the task of killing the wounded, old, and sick fish in schools to keep the stocks of fish healthy and plentiful. Andy Dehart, Discovery Channel Shark Advisor, spoke about the North Carolina shark over fishing problem. The shark populations on the East Coast were extremely over-fished which lead to the over population of sting rays, a main food-stock for sharks. The stingrays in turn decimated the shellfish populations on the East Coast, leading to calm and shellfish shortages. This shows that sharks are necessary for every eco-system and their destruction affects us in more ways then we can imagine.
Beaches, docks, and other shallow, oxygen-rich areas provide a suitable habitat for the clams. Because of this, Asian clams greatly impact swimming areas since their sharp shells can cause injuries among swimmers. Also located in shallow areas of lakes, typically, are water intake systems, which Asian clams also have the tendency to clog and ultimately destroy. Since the town of Lake George 's main drinking water source is the lake, this creates a huge issue. The clams also clog water intake systems in private boats and homes, costing owners hundreds of dollars to fix.