Canada Thistle: Can Humans Harm The Environment?

Invasive species don’t just cause monetary damage, they can completely disrupt and destroy ecosystems. Invasive predators like the brown tree snake can hunt native species to extinction because these species have not evolved defences against them. Even herbivores can cause indirect damage by feeding on the same plants as native herbivores therefore taking away their food sources. Plants can cause damage as well. Through various strategies they can take over the land where native plants would normally grow diminishing native plant populations. No matter what kind of creature an invasive species is it can still cause damage.

Invasive species make bad situations into worse situations. Having a species from a different ecosystem makes them invasive species. Such as a toad or even bacteria being in another ecosystem other than their natural habitat.

What is an invasive species? An invasive species is a species not native to an area, in this case not native to the Great Lakes area. A non-native species is a species that originally was not in a certain location but was brought there and causes a lot of damage. An invasive species also is a great danger to the environment and can cause damage to humans, plants, and animals. In Illinois and the Great Lakes area there are more than 180 invasive and non-native species. That means a lot of damage is made into our environment. One particular invasive species is Agrilus planipennis, more commonly known as emerald ash borer.

Invasive species are plants or animals that spread to a non-native ecosystem and cause harm to that area. Common characteristics of invasive species include their ability to permit a variety of conditions, produce lots of seeds or eggs, separate easily, has long growing period or quick reproduction time, and their new environment has comparable conditions to the original habitat. Invasive species most often have negative impacts when they are transported to another environment. A recent study done by the Center for Aquatic Conservation describes the effect some invasive species have. In various states of the U.S, it has been found that invasive species are costing more than “$200 million a year in losses to commercial

A species that is introduced to an ecosystem by humans can harm ecosystems in many ways. Animals that are introduced into a new area, could hunt a main food source for some animals, causing that population to decrease. Plants could be poisonous, or need to feed off of other plants. Species introduced into an ecosystem by humans through off the natural balance of the wildlife.

Invasive species are organisms that harm a new environment that they are not native to. Many invasive species like Eurasian milfoil are easily able to reproduce and can do so fast. Due to this, the limited space in a body of water or area of land is quickly taken over by the invasive species so other native plants face the risk of death or even extinction. Overall, these invasive species can do great harm to an ecosystem or an economy, causing problems that are destructive to numerous organisms.

Invasive species are animals, plants, or fungi that are non-native to the place they are currently in. Some non-native species are not invasive, but if the organisms cause harm to the native species, then they become invasive. Some invasive species on the Pacific Northwest are nutria, bullfrogs, and yellow star thistle. These plants and animals ruin the ground, eat whatever they can fit in their mouth, and can cause diseases. These invasive species don’t help the environment or the organisms living in the Pacific Northwest.

An article states, “If they do manage to survive in the wild, domesticated animals take resources from native species,” (Pesky Pets, paragraph 4). This exemplifies the damage that invasive species cause to native plants and animals. An invasive plant could poison native animals, which would unbalance the ecosystem. Some may believe that if humans step in they will cause even more unbalance. However, this is not a credible statement because those people are not taking account of the amount of disturbance that will occur if we don’t do anything. The amount of damage will be miniscule to the amount of damage that would be upon the ecosystem if nothing is done. Therefore, humans must take action before any harm falls upon the native plants and

Invasive species are very common all over the world. Invasive species are an organism that lives in an ecosystem in which they don’t belong. Invasive species are not only dangerous to people, but also the ecosystem and must be removed.

Influence on ecosystems range from human causes like the bulldozing of a forest to natural causes like a fire or a flood.  In recent times, the introduction and spread of invasive species has transformed native communities rapidly and, in some cases, created irreversible damages.  In the Earth’s history, changes have often occurred in the ecosystems.  For example, glaciers and the retreat of glaciers cause wide-spread changes.  However, although change is a constant in ecosystems, animals and habitats often cannot adapt to the rapid alterations of non-natural stresses.  Harm to the environment from the introduction of invasive species occurs through changes in the habitat and declines in the native species.  Invasive species

An invasive species is a species that comes out of its natural environment, and enters another. These animals are usually very bad for the ecosystem and may cause an unbalance. These animals usually come in with many competitive advantages and can easily dominate any competition. This will give them the ability to eat as much as they would like without being threatened in any way. This could possibly diminish many populations and end an entire ecosystem.

The biodiversity effects of non-native invasive species have been described as “immense, insidious and usually irreversible” (Veitch and Clout, 2002). There is significant evidence proving that invasive species can cause severe economic, environmental and ecological damage (Mack et al., 2000). A lot of time and research has been devoted to dividing the world into regions with distinctive habitats and species. Numerous pathways, mostly anthropogenic, are breaking down these realms and facilitating the ecological and biological invasion of non-native species.

Why should we remove invasive species? Invasive species can cause harm to wildlife. When they enter a new habitat, they most often don’t interact with the other organisms or destroy their habitat and environment. They can do this by preying on native species. Outcompeting them for food and other resources, causing or carrying a disease, and preventing native species from

Invasive species are organisms that are not native to an ecosystem and cause harm to it. These organisms are capable of bringing about a great deal of damage to the ecosystems they are foreign to. This can range from disrupting the growth of the environment it has taken over to completely decimating other species. The introduction of invasive species to new environments often involves humans. The way that invasive species are introduced to a new environment varies greatly. Invasive species may be introduced by something as simple as humans accidentally tracking species into a new environment from the bottom of their shoes, or something bigger like destroying an ecosystem to clear the land, forcing the species that lived there to flee to a new ecosystem that can be disrupted by the presence of a new species.

Invasive plant species are a cause of great concern in many countries of the world due to their impact on the environment, the economy and on human health. The movement of these plants across borders have been facilitated by global trade and travel. Invasive alien species are non-native plants that are introduced in new areas causing drastic changes to the natural habitats, thus threatening the indigenous plant species and impact local biodiversity. Although the term invasive is difficult to define, plants that generally cause no-harm to the environment or human health are generally not considered invasive. Many, however, argue that movement of plants across boundaries are natural process that have been going on for millennia and continue today for agricultural, ornamental or recreational purposes. Invasive alien plants have provided invaluable contribution to taxonomists and plant vegetation specialists as to the means by which plants colonize new habitats and how they interact with native plants and establish communities within an ecosystem. This review offers insight into the two sides of the invasive plant positions and how to manage the threat and impact of new plant introductions. Actions taken to tackle invasive species around the world will be discussed to determine how to assess their negative impact on the environment, the economy and human health.