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Human impact on the ecosystem
Human impacts on ecosystems
Human impact on the ecosystem
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Chesapeake Bay is an extremely large habitat to multipul different species. There is also a diverse biohabitat for the species to live in. Some of these bioms include marshes, forests, and streams. To be concidered a healthy ecosystem, the plants, animals, and other organisms must bennefit eachother. Although this sounds like a perfect system, there are many factors that can interfear with the ecosystem. One of those factors are humans. They have been going into the chesapeake bay, and building new houses, and making communities. This has a negative impact on the bay. This causes the bay to lose resourses than are essentail to the ecosystem. Some of those factors are the plants that would inhabit the bay. Humans go and tear down all of the plants, which leads to the energy loss to other organisms in the area. There is a rule called the ten percent rule. Energy is transfered from organism to organism daily. each time the energy switches person, the next individual only gets ten percent of the original energy. Humans being in the Chesapeake bay distupts the rule. We take energy, but give non in return to the rest of the environment. Way …show more content…
One of the many ways humans could help the Bay, is to reduce the runoff and pollution of the waters, Many of the new communities around the Bay, are farming land. WIth this being farming land, the runoff from the fields is causing extra nutrience. This cause a layer on the top of the water, that does not allow sunlight to get through to the plants and animals. This affects the ten percent rule as well. There are many inhabitants that live in the Bay. Some of which are becoming endangered. Some of these animals are the oysters and blue crabs. The Bay has been their home for as long as anyone can tell. But in the occurence of recent human behavior, there may not be any of those animals left to inhabit the
silence. Living from “hand to mouth” induced the gold miners to only be able to
Looking at the early English colonies in the Chesapeake Bay region, it’s clear that the English had not learned any lessons from their experiences at Roanoke. Poor planning, a bad location, unrealistic expectations, flawed leadership, unsuccessful relations with the local Indians, and no hope of finding the mineral wealth the Spanish found in Mexico, all contributed to failure. The first colonists in the Chesapeake region were not only ignorant, lazy and unambitious, but their attempts were hampered before they had begun. However, a solution to these problems was found in a single plant: tobacco. Nevertheless, this cash crop ultimately created numerous problems for the colonists. The ignorance and indolent acts of the Chesapeake colonists to unsuccessfully restore the colony by themselves led to the demise of the colony as a whole especially regarding the planting of agricultural goods for food.
During the 1600's, many people in the American colonies led very many different lives, some better than others. While life was hard for some groups, other colonists were healthy and happy. Two groups that display such a difference are the colonists of New England and Chesapeake Bay. New Englanders enjoyed a much higher standard of living. This high standard of New England's was due to many factors, including a healthier environment, better family situation, and a high rate of reproduction.
cut back on the problems in the Bay. Scientists have given an unthinkable amount of attention to the Bay of the past several years and researchers from countless numbers of agencies and institutions have dove deep into the issues and studying every nook and cranny to create answers to every politicians’ questions. The biggest concern with the Bay, and the most concentrated ...
The Chesapeake Bay is the largest estuary in the United States. It holds 18 hundred trillion gallons of water. The Bay is about 200 miles long, and is home to more than 17 million people. The importance of the Chesapeake Bay is incredible; two of the United States’ five major North Atlantic ports – Baltimore and Hampton Roads – are on the Bay. (Chesapeake Bay Program, n/d). The Chesapeake Bay provides shelter and food to all living things in the surrounding area. Both, people and animals, use the Bays resources every day and have done so for centuries.
Nature designed Florida to be one large marine ecosystem. Florida is one big sand peninsula located below the 40th longitudinal North American line. Three bodies of salt water (Gulf of Mexico, Strait of Florida and Atlantic Ocean) surround three out of four directions of Florida. Man-made canals, natural lakes, rivers and estuaries are confined within the State of Florida’s physical boundaries. All of these form an interlocking system of waterways that impact the interconnected marine environment (marine ecosystem). All of Florida’s waterways are connected back to the surrounding bodies of water while passing through Florida’s sub-tropical and temperate zones and impact the delicate marine ecosystem balance. Man and nature are causing a negative impact to this region like never before. Hurricanes, lack of green initiatives, garbage, pollution and the stripping of natural resources for population growth are decimating Florida’s natural ecosystems.
The Chesapeake Bay is the nation’s largest estuary with six major tributaries, the James, the Potomac, the Susquehanna, the Patuxent, the York, and the Rappahannock Rivers, feeding into the bay from various locations in Maryland, Virginia, Pennsylvania, and the District of Columbia (Chemical Contaminants in the Chesapeake Bay – Workshop Discussion 1). These areas depend on the Bay as both an environmental and an economic resource. Throughout the last 15 years the Chesapeake Bay has suffered from elevated levels of pollution. Nitrogen and phosphorous from wastewater treatment plants, farmland, air pollution, and development all lead to reduced water clarity and lowered oxygen levels, which harm fish, crabs, oysters and underwater grasses (Key Commission Issues 1). There are other types of pollution in the bay such as toxic chemicals, but because nutrient pollution is the most significant and most widespread in the Bay its effects are the most harmful to fisheries. Nitrogen and phosphorous fuel algal blooms which cloud the water and block sunlight from reaching underwater grass beds that provide food and habitat for waterfowl, juvenile fish, blue crabs, and other species (Blankenship 11-12). Algae plays a vital role in the food chain by providing food for small fish and oysters. However, when there is an overabundance of algae it dies, sinks to the bottom of the Bay, and decomposes in such a manner that depletes the oxygen levels of the Bay (11). The reduced oxygen levels in the Bay reduce the carrying capacity of the environment and these “dead areas” sometimes kill off species that can not migrate to other areas of the Bay, such as oysters (11). Increased abundance of algal blooms also led to the overabundance of harmful and toxic algae species and microbes such as the microbe Pfiesteria, which was responsible in 1997 for eating fish alive and making dozens of people sick (12). The heightened awareness of diseases that can be contracted through consumption of contaminated fish also has an economic impact. Therefore, the excess levels of nitrogen and phosphorous have fueled an overabundance of algal blooms, which has reduced water clarity and lowered oxygen levels, affecting many species within the bay and ultimately the industries that rely on these species.
This can be misleading. The bay takes up a large part of land but it is not very deep and does not contain much water. This makes the bay vulnerable to pollutants because there is not much water to dilute them.(Runoff and the Chesapeake Bay) Most of the excessive nutrients in the bay come from agricultural run off. For example, Lancaster County produces more than ten billion pounds of manure annually.
The Chesapeake Bay is the largest estuary in the United States .It holds 18 hundred trillion gallons of water. The Bay is about 200 miles long, and is home to more than 17 million people. It has been on earth for millions of years and has survived many different events. The importance of the Chesapeake Bay is incredible; two of the United States’ five major North Atlantic ports – Baltimore and Hampton Roads – are on the Bay. (Chesapeake Bay Program, n/d). The Chesapeake Bay provides shelter and food to all living things in the surrounding area. Both people and animals use the Bays resources every day and have done so for centuries.
Human activity is one of the leading causes of the disappearance of coastal wetlands. As the human population increases in coastal cities so does the demand for more land. Urbanization is causing enormous amounts of devastation to the existing wetlands. Unrestricted development is causing the erosion of soil, which is dumping foreign sediments into the wetlands polluting the water and disturbing the ecosystem. According to Lee et al. (2006) “Urbanization is a major cause of loss of coastal wetlands. Urbanization also exerts significant influences on the structure and function of coastal wetlands, mainly through modifying the hydrological and sedimentation regimes, and the dynamics of nutrients and chemical pollutants”. Restrictions on the development...
According to NOAA phytoplankton are microscopic organisms that continuously convert sunlight and nutrients into living tissue. Phytoplankton can be harmful to the bay because they at an uncontrollable rate causing harmful algae blooms when there is an abundance of nutrients. Phytoplankton also serve as the main food source for a larger but still microscopic organism named Zooplankton. Marine Bio.org did a study on zooplnkton revealing that they are very weak swimmers making them an easy food source for any larger organsim. Zooplanktons’ main purpose serves as the main food source for small fish and
and the effect it will have on the coast before they are allowed to be
One of the most famous pollution threats of the bay was the Oil Spill of 2007. A tanker hit the wall of the bay, and a total of 58,000 gallons of oil was spilt into the water of the San Francisco Bay Area. The spread of the oil was so severe that the governed of the States came to see the progress that he inducted during the cleanup. Initial investigation of the extent to which the spill had affected the ecosystem of the San Francisco Bay area took twelve hours. There are the different conclusion that was arrived at after the
The potential impacts of climate change on wetlands are of great concern. Increasing atmospheric concentrations of carbon dioxide and other greenhouse gases released by human activities are generally expected to warm the Earth a few degrees (C) in the next century by a mechanism known as the "greenhouse effect." Such warming could raise sea level by expanding ocean water, melting mountain glaciers, and eventually causing polar ice sheets to side into the oceans. Among the coastal areas of greatest risk in the United States are those low-lying coastal habitats that are easily eroded and which occur along the northern Gulf of Mexico and southern Atlantic coasts of the U.S. These coastal wetlands are especially vulnerable to direct, large-scale impacts of climate change, primarily because of their sensitivity to sea-level rise.
The oceans need to be protected because it is where life began and if not taken care of, life as we know it will end. When dangerous substances go into the ocean, ecosystems are suffer and become endangered along with lives of people and of marine life. Surfrider Foundation recognizes the importance of protecting and preserving the quality and biodiversity of the world's coasts because they are truly irreplaceable. There is also historical evidence of ocean pollution being present in the past, but the problem still lingers today. Heal the Bay discovered that,“Did you know there is a DDT and PCB hot spot off the coast of Palos Verdes? This superfund site (which indicates it's one of the most polluted places in the United States), is left over from a 1930's era chemical plant. Because DDT takes so long to break down in the marine environment, it persists to this day, contaminating certain species of fish. There are also highly polluted sediments in the Long Beach area, a sign of the heavy shipping in the port. Heal the Bay works on developing effective capping and removal plans to keep those toxins from spreading” (Heal the Bay). DDT is still highly concentrated in the South Bay area and still contaminating different species of fish. Even after more than 80 years DDT, a toxic insecticide, is still very concentrated and during upwellings, DDT particles come back up and continue to harm marine life. If humans are careless about what is thrown on the floor or sprayed on lawns, it can lead to disastrous affects when it comes to the condition of the ocean's ecosystems, and can endanger life itself leading to a problem that only we can mend.