Effects of introduction of Cane Toads species in the Australian Ecosystem Name Name of institution 12th May 2015 Introduction Introduced species refers to the plant or an animal that is not native to a particular place. These species are known to have the tendency of spreading quickly thus damaging the environment, human health as well as the human economy. The introduction of these species can either be accidental or deliberate. The deliberate cause of the introduction of these species can be either to control other species or for sporting purposes. The introduced species that cause negative effects to the local environment are referred to as the invasive species.
MALATHION RISK ASSESSMENT Malathion Risk Assessment Due to the wetlands that surround Genericville, the city is at high risk for the West Nile Virus which is mainly transmitted by mosquitoes. The wetlands provide a fertile breeding ground for these disease bearing pests which threaten the citizens of Genericville with contraction of this deadly virus. West Nile Virus cannot and should not be ignored. In order to control the mosquito population an insecticide called Malathion will be used. This particular insecticide has a 90% success rate for keeping the mosquito population from expanding.
This strong species is a voracious predator of insects and other small prey. Cane toads possess the capability of poisoning their predators. The introduction of this species to Australia was directed as a form of biological control. Cane toads were supposedly a ‘solution’ to the pest beetles in the sugar cane industry in 1935, before the use of agricultural chemicals became widespread. Although this ‘solution’ failed in its attempts to control the issue, cane toads were very successful at invading the ecosystems of Australia’s north.
While plants do benefit from elevated levels of phosphorous and nitrogen in the soil, so too do the pests that eat the crops, leading to population booms of bugs like crop-decimating aphids (National Academy of Sciences 688). The result is an increase in the amount of pesticides that farmers must use; pesticides that eventually seep into ground water and sometimes into potable supplies. Infiltrating ground water right along side the pesticides are the excess fertilizers which, once in rivers, streams, and lakes, cause rapid growth of algae. The immense amount of algae blocks off sunlight in these bodies of water and chokes off other plant life, which in turn kills off the fish that normally thrive on plants. In other cases, the algae blooms from eutrophication turn out to be incredibly toxic species (National Academy of Sciences 696).
Some interesting facts about the Burrowing Owl are that they can make more then seventeen vocalizations, and when alarmed they can make a hissing sound that sound like a rattlesnake. They make the hissing noise to scare predators, so they think there is a poisonous snake nearby. Burrowing Owls put dung at the entrance of their hole to attract bugs to eat. The burrowing owl is an endangered species, and here are some reasons why. Burrowing Owls are losing their habitats, because there is construction, like the building of houses that takes space in the desert.
The brutal dust storms brought forth tons of dust, but along with the deadly dust, thousands of grasshoppers were brought in too. The purpose of this investigation is to determine what effects did the Grasshopper Plague have on the mid-western society and how the lives of the average American were altered with the presence of these pests by evaluating the interviews of Stan Jensen, “Controlling Grasshoppers”, Walter Schmitt, “Dealing with Grasshoppers”, and the autobiography of Glenn D. McMurry, “Life in Western Kansas”, all survivors of the Dust Storm and Grasshopper Plague. These sources give a good overview of how people lived their lives everyday amidst the grasshoppers and how they dealt with this situation, and each one of these sources agree on the situation as being rather unpleasant. Glenn describes the incoming grasshoppers as a “dark cloud”, no better than the dusty clouds themselves (“Life in Western Kansas”). The already skimpy amount of crop production, due to the dusty droughts, became even skimpier as the grasshoppers endlessly and thoughtlessly devoured them hungrily, according to Walter (“Dealing with Grasshoppers”).
English 1301 Final Paper April 25th, 2011 The essay, “Eating Animals is Making us Sick” by Jonathan Safran Foer is an essay describing in detail the ill effects of factory farming. The author describes how the factory farming of animals has caused illness to humans in the past. The author also warns the audience that continuation of this process will result in more devastating illness in the future. The author hopes to make the audience aware of the horrors of factory farming and to hopefully inspire the audience to do something about the situation. Jonathan Safran Foer successfully argues that factory farmed animals are detrimental to the health of humans and also to the environment of the planet.
Invasive Species Paper: Coyote & Red Oak Invasive Species are defined as an animal or plant that is not native to the area. Many of these invasive species can be harmful to the native organisms or cause damage to our environment. Most species were brought here from different places in the world by accident or to get rid of another species. Since we have discovered that they are unhealthy to our ecosystem, there has been a huge effort by the state to remove invasive species. For my project I decided to research about Coyotes and Red Oaks in Maryland and how they have impacted our community.
It is considered to have permanent reservoirs in central Asia, Siberia, the Yunan region of China, and areas of Iran, Libya, the Arabian Peninsula, and East Africa. Rodents was infected with Yersinia pesti, producing blood poisoning.Fleas feed on dying rodent and carry the toxic to unexpected victims.
Unlike the medieval times we have the science and medicine to make immunizations, antibiotics, and cures (Furedi, 2001). This makes scenarios like that of the Black Death more easily avoided. The disease that ravaged much of the world’s population, spread across Europe, economic change, and lasting fear can be summed up in two words; Black Death. Rat flies help to spread the bubonic plague, leaving a trail of dead bodies in its wake. There was no-one to call for help, because the Doctor and the priest was already dead.