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Effects of animal overpopulation
Effects of animal overpopulation
Effects of animal overpopulation
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Parasitism is a dangerous problem that causes diseases in animals. Over time, the most successful parasites are the protozoa, the helminthes, and some of the arthropods (Olsen 1962). These parasites were successful because they move from one host to the next, and some of these parasites, such as the arthropods, feed on blood and tissues in animals and humans, and deprive nutrients from their host. Often this loss of nutrients will result in severe internal organ bleeding for the host. For example, “When parasites, such as hookworms in man or trichostrongyles in cattle and sheep, affect the entire population, the effect of the disease is masked and often not recognized…the injections of these parasites results in great loss of blood through bleeding into the intestine.” Moreover, parasites infect their host leaving an escape route for bacteria and diseases to spread. These diseases can be contagious to humans, therefore animals harm the ecosystem by spreading bacteria and pathogens. According to Baucom and de Roode (2011), tolerance or resistant mechanisms in animals can reduce the growth of parasites. Diseases and bacteria are not the only problems with animals. As the human population increases, animals and humans come in conflict with one another because space and food are limited. To prevent overcrowding, many species are aggressive and developed mechanism to defend their available habitats (Golley 1962). Animals can create major problems because they spread diseases to humans and threatened their lifestyle. To begin with, animals bring harms to humans by transmitting diseases and bacteria. Diseases mainly come from bacteria and harmful parasites. Though some parasites are beneficial to their hosts, many others ... ... middle of paper ... ...m humans’ occupations. Whereas, humans built many projects and homes to shelter these animals and they also created restricted spaces that separates them from the animals, in order for the animals to live within their habitat without interfering with the human populations. Finally, if animals have no boundaries, they can be an intimidating creature. Works Cited Baucom, R. & de Roode, J. (2011). Ecological immunology and tolerance in plants and animals. Functional Ecology, 25(1), 18- 28. Castleberry, S. (2005). Mammals. Georgia encyclopedia. Retrieved March 19, 2011, from http://www.georgiaencyclopedia.org Golley, F.B. (1962).Mammals of Georgia: a study of their distribution and functional role in the ecosystem. Athens: University of Georgia Press. Olsen, O. W. (1962). Animal parasites; their biology and life cycles. Minneapolis: Burgess Pub. Co.
There are plenty controversial issues about bully breeds and whether they are acceptable or safe dogs to own. In July a woman was mauled in her yard and killed by a dog in Montreal. Due to this unfortunate incident the mayor Denis Coderre created a bill called BSL (Breed-Specific Legislation) which was approved by the legislation. This bill states that determined by their breed or pitbull features “American Pitbull Terriers, Staffordshire Bull Terriers, American Staffordshire Terriers, American Bulldogs or any dog with strains of these breeds” will be unadoptable; they must wear a muzzle in public as well as a leash that’s 4 feet long and in most cases they will be euthanized due to their breed. BSL should be reversed because the real problem is irresponsible dog owners, the irresponsible owners will just switch breeds and any dog has the potential to hurt someone.
Mammals of Florida. Miami, Florida: Windward Publishing. 3. Land, Darrell, and Sharon K. Taylor. 1998.
Disease and parasitism play a pervasive role in all life. Many of these diseases start with microparasites, which are characterized by their ability to reproduce directly within an individual host. They are also characterized by their small size, short duration of infection, and the production of an immune response in infected and recovered individuals. Microparasites which damage hosts in the course of their association are recognized as pathogens. The level of the interaction and the extent of the resultant damage depends on both the virulence of the pathogen, as well as the host defenses. If the pathogen can overcome the host defenses, the host will be damaged and may not survive. If on the other hand the host defenses overcome the pathogen, the microparasite may fail to establish itself within the host and die.
It is apparent that there are many philosophers that stand on both sides of the argument. One side is clearly expressing that while there may be some overlap between the human species and nonhuman species, we are not equal because of the concept of rationality, for example. However, I see Singer’s arguments as much stronger than the other philosophers. He draws on many solid points backed up by concrete evidence that is easily understandable on many points, pulling from different experiences and true events. I defend Singer’s view that nonhuman animals are equal to human beings because he points cannot be discounted, but more heavily supported the more he digs into them.
Many of these diseases originate from animal populations. Humans’ interaction with the environment, and animals contribute to the rate and prevalence of disease. All three areas are interconnected. One Health is a concept that views human, animal, and environmental health as one area of health. The three entities, when separated can hinder each other and delay progress. The opposite is also true. When public health officials recognize the correlation between human, animal, and environmental health, advancements and innovation can occur. Other public health issues are present in relation to spread of infectious disease between humans and animals. People must know how to cook animal products in order to kill pathogens. Many diseases are also transferred when humans disrupt ecosystems. These are areas where public health has the opportunity to make progress. The issues that infectious diseases cause occur across the globe. In addition, One Health concepts can be applied to populations all over the
One story tells of the time when animals, fishes, insects, plants and humans lived with each other in peace and friendship (see Mooney, pp. 250-252). Eventually, however, humans began to crowd and crush their animal partners out of carelessness and contempt. Even worse, they invented weapons of mass destruction such as the blowgun and the spear that allowed them to kill animals indiscriminately. Each animal nation then called a council and decided to invent diseases inflicting pain and death upon their human victimizers. Under the able leader...
Exotic animals carry diseases and infections that can be potentially harmful or fatal to humans, jeopardizing the safety of the community. These diseases range in severity from common ringworm infections from African pygmy hedgehogs to lyssaviruses in p...
...es to places to display animals for curiosity and education, to parks where animals can be seen in their more natural habitats. The perception around enclosures and cages in general is often criticised, with Bartay and Hardouin believing that “every aspect of humanity’s relationship with nature can be perceived through the bars of the zoological garden: repulsion and fascination; the impulse to appropriate, master and understand… linked to vast parallel histories of colonization, ethnocentrism and the discovery of the other… to tour the cages of the zoo is to understand the society that erected them.” (Bishop, 2004: 107). This suggests regardless of an enclosure’s size, nature or specification it is a direct indication of humanity’s desire to control and exhibit animal others. Malamud agrees with this view, arguing that all practises of animal containment “convince
Animals have bacteria inside of them just like we do. So they take bacteria so they can kill the harmful bacteria. But they take to much and instead of helping they harm themselves. Not only does the animals get effected, they spread the bacteria into the food we eat and they harm humans. They also harm the environment because when animals get out wastes they also get out harmful bacteria which can spread to people and harm the environment.
Common animals that carry these diseases are rats, prairie dogs, and parrots (“Exotic Animals as Pets”). According to Live Science, a science news website, researchers have found that 13 zoonoses, which are diseases transmitted from animals, cause approximately 2.2 million human deaths per year. "From cyst-causing tapeworms to avian flu, zoonoses present a major threat to human and animal health," lead researcher Delia Grace, a veterinary epidemiologist. According to researchers, about 60% of all human diseases are zoonotic, meaning they come from animals. Most zoonotic human diseases come from livestock, such as pigs, chickens, cattle, goats, sheep, and camels (Bryner). If humans would not come into close contacts with animals there would not be as many diseases in the world which would result in less human and animal deaths. According to WebMD, an American corporation that provides health news, advice, and expertise, a very common zoonotic disease in the world today is influenza, also known as the flu. Influenza usually comes from ducks, geese, or pigs and then it spreads to chicken and pigs. Leptospirosis is another example of a human infection that comes from animals. Leptospirosis is caused by contact with water, food, or soil that has been contaminated with urine from infected animals. This infection can lead to liver failure, kidney damage, brain and spinal cord infection, and rarely, death
Animals are used today for many sources of protection, food, clothing, transportation, sports, entertainment, and labor, but millions of these animals die each year from abuse. “Most of the reasons that people give for denying animals rights are: animals do not have souls, god gave humans dominion over the animals, humans are intellectually superior to animals, humans are intellectually superior to animals, animals do not reason, think, or feel pain like humans do, animals are a natural resource to used as humans see fit, and animals kill each other” (Evans). It all started in the nineteenth century, when people began abusing animals by beating them, feeding them poorly, providing them with no shelter or poor shelter, left to die if they were sick or old, or by cruel sports. Most of the organized efforts to improve human treatment of animals all started in England. Around the 1800s, there was signs of rising concern for animal welfare in the United States.
Animals that are neglected by their owners roam around the streets and eventually die due to starvation or some kind of disease. Animals are not something that cannot be thrown away so easily, because they have rights as well, and we need to treat them the way they should be treated. Although not all humans treat animals badly, we should still attempt to educate as many people as we can about animal cruelty. Animal cruelty does not only affect animals, it affects humans as well.
of parasites do not kill the host from feeding, whereas a predator will kill it’
At this moment, millions of animals know cold cages in laboratories as home, but why? Some of these animals are subjects for medical research purposes, while others are used out of pure curiosity and to test different products. Majority of these animals are used in painful experiments and are left in agony. While many of them die, a few animals survive, but these unfortunate ones wish they could be put out of their misery as well. Although scientists have resources they could use to lower the pain each animal endures and even alternatives of their test subjects, millions of innocent creatures are still suffering. The fact that animals are still used when animal experimentation is avoidable and not necessary makes animal testing unethical.
In this report, we want to lead people to realize about the problem of stray animals and its effects on human beings, and how we can save them. We are going to explain about what experts have to say about this problem, what they think the solutions are, and also how better animal lives can benefit human beings.