What Are Invasive Species

One of our top environmental issues, invasive species get relatively little attention. First, we need to differentiate a few terms. A species referred to as alien or non-native is found outside of its natural geographic range. Exotic means practically the same thing. The alien designation generally implies that humans were instrumental in moving it to its new location. Some species naturally expand into new areas, and those are not considered alien. Another term frequently employed is feral. Feral animals are wild individuals belonging to a species that is domesticated. There exists colonies of feral cats, packs of feral dogs, and many regions  have problems with feral pigs, and even with feral goats and cattle. An invasive species is an alien species that heavily colonizes an area, causing harm to the environment, to human health, or to the economy. Not every organism has the potential to become invasive if transplanted in a new area. Some characteristics facilitate that kind of behavior. For example, invasive plants tend to grow rapidly, produce seeds quickly and abundantly, and have the ability to disperse far and wide (think of dandelion seeds).   Ã‚   Just as organisms vary in their capacity to become invasive, ecosystems vary in their vulnerability to invasive species. Most likely to harbor invasive species are islands, areas that have been disturbed (for example, road sides), and places that are highly diverse. How Do Invasions Happen? One or more factors may be at play, allowing an alien species to become invasive. Sometimes a species makes it to new shores without the predator or competitor that holds them in check in their native range. For example, a marine alga, , is invasive in the Mediterranean, but is controlled by a snail and by other grazers in its native Caribbean Sea. Other species exploit resources that are unavailable to local species. Tamarix, or saltcedar, is an invasive tree in the desert Southwest US, and it uses its long tap roots to reach zones saturated with groundwater but too deep for other plants. Invasions rarely take off after just a handful of plants or animals of one species are introduced in a new area. The species is often present in really small numbers for many years before it suddenly expands its range. Scientists are not certain why, but it could be that this lag time may allow the species to adapt to the new environment, perhaps hybridizing with a native species. Over that period of lag time, new individuals continue arriving, providing more genetic material and thus better equipping the invasive species for conditions in the new environment. What Drives Invasions? We use the term vector to describe the method by which invasive species make it to new areas. Many plants arrive through agricultural or horticultural activities. Sometimes called escapees, ornamental outdoor plants can start growing outside of the landscaped front yard they were planted in. Boxes and containers holding cargo can hold stowaways, as we are periodically reminded when we hear news stories of shaken customers finding tropical spiders in their grapes or bananas. The emerald ash borer, an insect decimating ash trees in North America, probably arrived from Asia in wooden pallets and boxes used as cargo crating. In the marine world, ships’ ballast tanks are often blamed for holding water containing alien species that can become invasive. This is probably how zebra mussels made it to North America. Ultimately, the main driver of invasions is trade. Increased purchasing power, reduced trade barriers, and delocalized manufacturing centers have all led to an increasingly global economy. Net US imports have grown by over ten times since the 1970s, facilitating the movement of cargo and people around the world, along with many plants and animals eager to get a fresh start somewhere new.

Animal Testing Should Be A Thing Of The Past Essay

Animal testing should be a thing of the past. Imagine this, scientists injecting a certain chemical to an innocent animal to test, so that product can be safe for human utilization. Now, this chemical will have a mercurial effect on that animal, it will either comply with it or succumb to the chemical and causing various side effects; could even lead to death. This is the sad and cruel reality animals in labs are facing. Over the years, scientists from all over the globe have conducted tedious experiments on animals for the sole purpose of the human beings’ safety. There is no question about whether or not human lives matter, they do. That’s why scientists resulted in testing on animals. It would be unethical to practice on a human being, but shouldn’t they say the same thing for an animal? This issue is imperative because animal testing is very cruel, inhumane, and unethical. Millions of animals’ lives had come to a short because of failed experiments. Sc ientists should resort to alternative testing methods, rather than testing on animals. Though successful research with animal testing seem beneficial to human beings, the pain and suffering, and even death, unfortunately, is not worth it. Right now millions of dogs, cats, monkey, mice and other animals are locked up in cold cages inside laboratories across the globe, waiting to be tested on. Why exactly do scientists experiment on animals? The basic anatomy, body process, and organs system of animals and human beings areShow MoreRelatedAnimal Testing Should Be Banned848 Words   |  4 Pages As a society we have failed to notice, it’s everywhere. The animal testing footprint. Aeroguard, Chapstick, Michael Kors, Palmolive and Dettol: these common household brands all have the dark footprints of animal experimentation embedded into it. Each year over 6.5 million animals are brutally tested, killed or harmed in Australia and New Zealand, for many brands across the nation. You may think that Animal Testing has nothing to do with you but the real truth is, it does. It’s unavoidable toRead More Vivisection: Is it for you? Essay1749 Words   |  7 PagesVivisection: Is it for you? Animal Research has become a heated debate over the past few decades, reaching a high point around the end of the twentieth century yet it still continues through today. There are two main ways to look at this topic: the logos pro side and the pathos anti side. Those who are for animal testing realize the amazing benefits that can come out of such research while those against animal testing stand up for animals’ rights and try to find ways to better such researchRead MoreShould Animals Be Used For Product Or Medical Research?767 Words   |  4 PagesIsn’t that a horrible thing? That’s what animals go through almost everyday. Animal medical research and animal testing has been going on for years and years and needs to be stopped immediately. They have lives just like us and are being treated like their nothing. Animals should not be used for product or medical research. To begin with, the behaviors of animals has become violent because of animal research. A 2013 poll showed that two thirds of respondents oppose testing cosmetics and other consumerRead MoreEssay1735 Words   |  7 Pagesmake an indelible landmark. Scientists in past have created subtle practices by using human parts and mentally retarded children in research trials, finding a cure for disease created an atmosphere of impossibility, and there were no federal guidelines in place that could approve these treatments to be used on patients like Food and Drug Administration (FDA). Research institutions and scientists in the past have created a subtle and diverse trend in testing their medical discoveries on humans. UnlikeRead MorePersuasive Essay On Animal Testing802 Words   |  4 PagesEvery year over 26 million Animals are used for scientific and commercial testing. They use these animals to develop medical treatments and to determine the safety for human use. Animals are put through intense torture, pain and death just to see if the product is safe for humans. Even pregnant animals get tested on and most of the time the baby animals die in the stomach. Testing on these innocent animals is cruel and inhuman. There is really not a similarity on animals and humans, half of the productsRead MoreAnimal Testing Should Not Be Banned Essay1369 Words   |  6 Pagesheartbreaking, miserable animals: that is what comes to mind when animal testing is mentioned. While some of it may be true, testing animals for medical reasons is necessary. Animal testing has led to the advancement of medical research and has help device many medicines, it is the reason animal testing is still being used. The fact that experimenting on animals has led to great medical discoveries, does not mean that animal testing is not morally ambiguous. Animal testing has many flaws and reasonsRead MoreThe Horror that is Animal Testing 970 Words   |  4 Pages do you know what animals have gone through to get it on the shelves? It is something we’ll never have to imagine going through, so why should animals? Animal testing is not necessary. Animals simply don’t have a choice if they want to be experimentd on. What makes me angry, is there are alternative methods to testing, so animals don’t need to suffer. Animals have to endure terrible pain, fear, and loneliness, which is cruel and mean on our part. The pros and cons to testing don’t even out. ClearyRead MoreAnimal Testing Is It s Bad And Good At The Sametime866 Words   |  4 Pages The controversy on animal testing is that it s bad and good at the sametime. It s based on protecting humans, not simply producing new life-saving drugs although this is seen as a priority another reason is that animal testing involves the inability of animals to consent to the tests. Humans, it is argued, can make an informed decision to consent while animals have tests forced upon them, with no choice. The controversy started in Abuses of animals during testing were well publicised throughoutRead MoreThe Negative Effects Of Animal Testing941 Words   |  4 PagesAnimal testing has been around since 500 BC starting with dissecting animals in ancient greece. French animal testers believed that animals were â€Å"automata† and could not feel pain or emotions. There was no public objections to animal testing until the 19th century when there was an increase of adopting domestic pets. Nowadays public opinion is split down the middle on whether or not animals should be tested on. The animals are generally tested on for cosmetics, health, commercial, biomedical, spaceRead MoreEssay On Science For Children1689 Words   |  7 Pagesan indelible landmark. Scientists in past have created subtle practices by using human parts and mentally retarded children in research trials, finding cure for a disease created an atmosphere of impossibility, and there were no federal guidelines in place that could approve these treatments to be used on patients, like Food and Drug Administration (FDA). Research institutions and scientists of years back have created a subtle and diverse trend in testing their medical discoveries on humans.

US Border Patrol Pros ; Cons Essay Example For Students

US Border Patrol: Pros ; Cons Essay The U.S. Border Patrol is the organization that polices the entry of illegal immigrants into our country. The official mission of the United States Border patrol is to protect the boundaries of the United States by preventing illegal entry, and by detecting, interdicting, and apprehending illegal aliens, smugglers, and contraband. Today, the United States Border Patrol consists of 21 sectors. Each sector is headed by a chief patrol agent. There are 145 stations located throughout the continental United States, and in Puerto Rico. The Border Patrol controls the border by land, sea, and air. The Border Patrol has jurisdiction across all United States borders and at least 25 miles off the border. The Border Patrol agents are responsible to check factories for illegal workers. As of September of 1995, the Border Patrol had 530 agents. The Border Patrols efforts may be sufficient but many people believe that there are many problems in the methods of the Border Patrol. First, many people think that all of the equipment is costing the taxpayers too much. An estimation by TIME magazine states that in California alone, $400 million is spent on healthcare for illegal immigrants. CNN says that the care of illegal immigrants in one hospital in Jacksonville, Florida costs taxpayers $44.5 million. A Federal Government estimate says that $1.6 billion dollars is spent on the education of illegal immigrants each year in California alone. Just think of how much money is spent on illegal immigrants across the country. Now this is just the cost of the immigrants that get through the border patrol. These costs could be greatly lowered if the Border Patrol would do its job. Let alone the cost of the illegal immigrants that manage to get through the Border Patrol, the Border Patrol alone is costing plenty. In an overview, some people believe that we are spending too much money on the border patrol, considering that they simply are not doing their job. We are giving them so much money to get the latest equipment, but still people are getting through. The people in favor of the Border patrol have the basic idea that, yes, the Border Patrol used to be ineffective, but now due to many improvements in federal money, manpower, and technology the Border Patrol is very effective. They say that the reason for all the illegal immigrants in the U. S. is due to when the Border Patrol was not as effective as it could or should be. From the start of the Clinton administration, a $500 million crackdown on illegal immigration was put into effect, most of that money put into the Border Patrol. Operation Gatekeeper financed new lights, fencing, vehicles, equipment, and agents. It was the most extensive crackdown ever made against illegal immigrants. Robert Bach, the top policy and planning official for the immigration agency states, It is a wonderful progress in an area where, frankly, most of us never believed that government intervention like this would work, This is historic. These routes of travel that Mexicans have been using for decades. We have broken that up. After only one year of Operation Gatekeeper, the size of the Border Patrol has doubled. The amount of immigrants caught has also almost doubled. In an overview of the supporters argument, they believe that new improvements in the Border Patrol have indeed decreased the amount of illegal immigrants and should be allowed continuing funding to further decrease the amount of illegal immigrants entering the country. As you can see, there are many different views toward the processes of the Border Patrol. .u0ed0b9e4e177cedd677dd67a548be365 , .u0ed0b9e4e177cedd677dd67a548be365 .postImageUrl , .u0ed0b9e4e177cedd677dd67a548be365 .centered-text-area { min-height: 80px; position: relative; } .u0ed0b9e4e177cedd677dd67a548be365 , .u0ed0b9e4e177cedd677dd67a548be365:hover , .u0ed0b9e4e177cedd677dd67a548be365:visited , .u0ed0b9e4e177cedd677dd67a548be365:active { border:0!important; } .u0ed0b9e4e177cedd677dd67a548be365 .clearfix:after { content: ""; display: table; clear: both; } .u0ed0b9e4e177cedd677dd67a548be365 { display: block; transition: background-color 250ms; webkit-transition: background-color 250ms; width: 100%; opacity: 1; transition: opacity 250ms; webkit-transition: opacity 250ms; background-color: #95A5A6; } .u0ed0b9e4e177cedd677dd67a548be365:active , .u0ed0b9e4e177cedd677dd67a548be365:hover { opacity: 1; transition: opacity 250ms; webkit-transition: opacity 250ms; background-color: #2C3E50; } .u0ed0b9e4e177cedd677dd67a548be365 .centered-text-area { width: 100%; position: relative ; } .u0ed0b9e4e177cedd677dd67a548be365 .ctaText { border-bottom: 0 solid #fff; color: #2980B9; font-size: 16px; font-weight: bold; margin: 0; padding: 0; text-decoration: underline; } .u0ed0b9e4e177cedd677dd67a548be365 .postTitle { color: #FFFFFF; font-size: 16px; font-weight: 600; margin: 0; padding: 0; width: 100%; } .u0ed0b9e4e177cedd677dd67a548be365 .ctaButton { background-color: #7F8C8D!important; color: #2980B9; border: none; border-radius: 3px; box-shadow: none; font-size: 14px; font-weight: bold; line-height: 26px; moz-border-radius: 3px; text-align: center; text-decoration: none; text-shadow: none; width: 80px; min-height: 80px; background: url(https://artscolumbia.org/wp-content/plugins/intelly-related-posts/assets/images/simple-arrow.png)no-repeat; position: absolute; right: 0; top: 0; } .u0ed0b9e4e177cedd677dd67a548be365:hover .ctaButton { background-color: #34495E!important; } .u0ed0b9e4e177cedd677dd67a548be365 .centered-text { display: table; height: 80px; padding-left : 18px; top: 0; } .u0ed0b9e4e177cedd677dd67a548be365 .u0ed0b9e4e177cedd677dd67a548be365-content { display: table-cell; margin: 0; padding: 0; padding-right: 108px; position: relative; vertical-align: middle; width: 100%; } .u0ed0b9e4e177cedd677dd67a548be365:after { content: ""; display: block; clear: both; } READ: Homo Superior? Essay There is no doubt that the Border Patrol and the illegal immigrants getting into the country is costing the American Government a lot of money, but is the money being spent as well as it could be? Do you think that there should be more or less funding of the border patrol? Where do you find yourself in this debate? Are you for or against the efforts of the United States Border Patrol?

Effectiveness and Efficiency free essay sample

Effectiveness and Efficiency Businesses often discuss about ways to improve their managements. Employee effectiveness and efficiency is a beneficial process for enhancing a business, although they may sound similar they are entirely different. Effectiveness means when a business is successful in producing the desired strategies planned by the employees, mainly the managers. Whilst efficiency measures the relationship between minimum inputs with a maximum output. There are common issues that individuals have, putting efficiency before effectiveness. People often end up looking for better ways to do certain things but never get anywhere. Effectiveness is simply the kitchen recipe for the better outcome, getting the job done and planning objectives. It focuses on what is going to be done in order to maximize the future outcome. Companies like â€Å"Apple inc†, conveyed the example of effectiveness they’re goal as a management is to do good design, attractive products, the focus, the limited scale and the clever marketing. We will write a custom essay sample on Effectiveness and Efficiency or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page As their business expands individuals can clearly see that apple has enhanced these goals. Apple’s effectiveness was the root to their successful business. Thus basically saying, effectiveness is the main priority to a better management. In the other hand analysing every detail and implementing plans to make intelligent gestures for the business’s profit is a major importance. The significance of efficiency is to accomplish minimum of time at minimum cost with minimum effort with the result of a maximum output. Efficiency improvements are important because they result as cost savings, which the business accomplished through their goals and objectives. Like apple, the innovation of the iPhone 5 to the iPhone 5s wasn’t that big of a difference, the only changes were the camera and home button. If you were to think as a business, the iPhone 5s wasn’t really an outrageous amount of change. But as a customer you always look for the latest updates. Thus, buying the newest apple products with simple changes. Hence explaining that the hierarchy of the management should think more practical as a result of a better cash flow and profit. Although effectiveness maybe about planning, and efficiency maybe about practicality, they both compliment each other. Without the use of proper planning, goals and objectives there will be no direction for the business to go. Whilst if there is no one strategically thinking in running a business you will come to a loss. Thus conveying that effectiveness is the process of planning your target, and with that target you implement your objective with the use of efficient and resulting you with a positive outcome.