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How invasive species affect ecosystems
Ecology research paper on invasive species
Ecology research paper on invasive species
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Invasive species as a whole have become a nuisance to many habitats and ecosystems around the world. What defines an invasive species is the following. It must be a species that is foreign to the habitat it resides in, have no natural predators which allow it to reproduce in such a rapid manner, and out compete native animals of food and shelter (Rosenthal 2011). These characteristics are what create such high populations of these invasive species in various habitats around the globe.
A species in particular that I have researched is the red fox or Vulpes vulpes as it is known in the scientific community. The animal is native to North America, Asia and Europe where they thrive in habitats ranging from temperate deserts to boreal forests, but its range spans the entire globe (Tesky 1995). The red fox is omnivorous which means that it feeds on animals and plants equally, which, creates impacts on both types of populations within its habitat. What makes the red fox invasive is its introduction to Australia and Eastern parts of the United States, as a result of migration of Europeans t...
Unable to handle their giant snakes, and unable to find new homes for them, some owners illegally release them into the wild. They are also an invasive species, which means that they are not constrained by natural factors as much as they were in their native habitat. Invasive species have the potential to harm their new environments. The release of Burmese pythons in South Florida is especially troublesome because the subtropical climate and the vast undisturbed habitats of the Everglades enable the species to thrive.
Australia is a land of rather extreme weather conditions and widely diverse climates that force the vegetation living there to adapt in many interesting ways. Australia is the driest continent, and biomes such as grasslands and savannas are prime sources of widespread catastrophic fires. The plants that grow in the vast arid and semi-arid regions of Australia are prone to fires simply because of the desert climates that they grow in. High temperatures combined with low fuel moisture contents, little humidity and drying winds that sweep across the landscape encourage many of the plants living in these areas to burst into flames at fairly frequent intervals. Serotinous cones, protective bark, intricate underground recovery systems, unique seed distributions and even the necessity of fire for reproduction are just some of the amazing ways that the major plant families which grow in these fire-prone areas have learned to adapt to their environments.
The invasive species, the Burmese Python has done irreparable damage to the Everglades National Park in Florida. A steady decline in mammals has been observed since the introduction of Burmese pythons occurred. Burmese pythons were first introduced into the United States as part of the pet trade which then led to the escape or intentional release out into the wild. The first notation of these species arriving was in the year 2000. However, within just eleven years this invasive species had done such a large amount of damage to Florida’s Ecosystem that many species had gone almost completely extinct.
The piece I chose to do my literary analysis on was the article, The Truth About Invasive Species, written by Alan Burdick. The article states that invasive species are all around us, but the area with the most prominent amount is the suburbs of Miami. It goes into detail about how abundant invasive species are in this area. Most people who would see a strange animal in their lawn or area would be bemused, however for the people of Southern Florida, this is a recurring scene. Burdick states that “virtually everyone in the South Florida, including Hardwick, has a neighbor with a backyard menagerie of lucrative critters on hold for resale”. Burdick describes both how an invasive species is introduced into an ecosystem, and the impact the have on other species upon their arrival.
Invasive species are non-native organisms that occupy habitats and disrupt the natural ecological cycles of the habitat. They threaten the biodiversity of an ecosystem and are biological pollutants Invasive species introduced into new habitats usually maximize their reproduction in their new home and crowd out native species. Their lack of natural predators in their new community allow for a proliferation in growth and expansion as a result of their abundant food supply. Once they are established, invasive species can rarely be eliminated because their new habitat is favorable for their survival.
Nonnative species can also be called alien, exotic, or nonindigenous. Their presence is due to humans dispersing them to other locations beside their native habitat, or by humans creating environmental conditions that allow their growth. When nonnative species begin to take over a new habitat and displace native species, they are then termed an invasive species. Nonnative invasive species are one of the biggest threats to ecosystems in North America (Cox, 1999) because they are able to have an impact on many levels, including ecosystems, communities, and populations (Cushman, Tierney, & Hinds, 2004).
The Channa Argus, also known as the Northern Snakehead, is currently an invasive species in parts of the United States. Its native range includes Korea, China, and Russia; specifically, the Amur River Basin. They primarily live in fresh aquatic water sources and thrive in the northern hemisphere due to the colder temperatures. They are commonly referred to as snakeheads because of their slim bodies and scaly head features (Fuller et al 2017).
Felis catus the domestic cat, an introduced species as a direct result of the human population is responsible for 26% of the extinction of the total population of Birds, mammals, and reptiles worldwide. This has severe implications and a threat to Australian Biodiversity. The major impact suffered as a result of the Felis catus on Australian Biodiversity is the decline and in some cases extinction of mammals. Predation being responsible for the impact on
Because of the increasing awareness of the negative impact deer have, they are recognised as a pest animal in many Australian states. Legislation is still varied between different regions of Australia, and specific control measures distinguish between the various species of deer, some being more harmful than others. The following methods are used to control feral deer numbers in affected areas.
Niskern, Diana. Invasive species. Washington, D.C. (101 Independence Ave., S.E.): Science Reference Section, Science, Technology, and Business Division, Library of Congress, 2004.
The current ban on fox hunting has been very controversial, and there have been many arguments, both for and against hunting. Fox hunting is typically viewed as a traditional British activity, but actual fox hunting that uses hounds takes place all over the world. Historically wherever the British have gone building their empires, they have taken the sport of fox hunting43 with them. In addition, plenty of other countries have their own fox hunting traditions. In France, Italy and Ireland they are thriving fox hunts.
Invasive species are crawling to places they shouldn’t be, making the world react in a dramatic way. It can be passed throughout a number of ways: by All Terrain Vehicles (ATVs), canals and changes to waterways, gardening and landscaping, transportation of animal carcasses and raw wood, along with other items. The Red-Eared Slider travels by another unique way to become an invasive species: being dumped by pet owners. Since this happens so frequently, the Red-Eared Slider is on the 100 of the World’s Worst Invasive Species List.
Invasive species, (also known as invasive alien species or simply alien species) are defined as any organism (plant, animal, pathogen, or other living thing) that is alien (non-native) to an ecosystem, which can cause adverse economical, ecological, or health effects to native species and/or humans. The roots of these problems all stem from the massive negative ecological impact these organisms are having on the environment (CBD, 2009). For all animal extinctions where the cause is known since the 1600’s, invasive alien species have been a contributing factor 40% of the time (CBD, 2006); the second most contributing factor to extinctions after loss of habitat (GC, 2013). By eliminating native species through competition for resources, predation, and transmittal of disease, invasive species continue to reduce biodiversity in almost all ecosystems around the world (CBD, 2009). In the future, this problem may worsen, and if no action is taken, could lead to a cascading ecological problem so large that whole communities or even ecosystems could collapse.
One huge impact of global warming is the change in animals’ habitats. When the earth’s temperature is increasing, it creates the change of weather conditions in a certain area, which causes some kinds of animals in this area to live with many difficulties, or sometimes those kinds of animals are forced to move to new region when they cannot handle the difficulties. The arctic fox is an example for this situation. According to the article “How Does Global Warming Affect Wildlife,” arctic foxes prefer to live in the cooler environment while their habitat is getting warmer and warmer due to global warming, so arctic foxes have to leave their own home to seek a more suitable area (National W...
One of the big causes of extinction or the endangerment of species is foreign species entering a habitat. This species that are not native to the land can disrupt the food web in that community. These species take control of the food web and endanger some of the other species. The native species become endangered and over the course of many years they either adapt to their new way or life, the foreign predator leaves or is killed off due to the different environment, or the species is killed off and becomes extinct. Organizations like the “World Wild Li...