• Home   /  
  • Archive by category "1"

Essays In Wetland Ecosystems

Wetland Ecosystem Essay

1. Introduction
Wetland ecosystem is one of the most productive ecosystems on this planet delivering massive goods and services to human society. However, due to poor awareness of their values and underestimation of their contribution, many wetlands have been converted to farmland or urban areas, or influenced by pollution due to agricultural and industrial activities. Consequentially wetland ecosystems have severely declined and degraded globally during the past decades. In order to restore and protect wetlands, hence ensure a sustainable supply of wetland goods and services, it is important to recognize their values. Vital to this is the development of valuation methods that explicitly link wetland values, the capital base of the ecosystem, to the design of policies (Pearce and Atkinson, 1993; Dasgupta and Mäler, 2000; Arrow et al, 2004; Maler et al, 2008; Dasgupta, 2010).
For a typical wetland ecosystem, its values can be accounted in terms of the populations of its species, fish harvested per day, the amount of carbon stored per year, or the annual number of recreational visits. These are generally categorised as values from wetland production, regulating or cultural services (MA, 2005). Proper and accurate estimation of these values enables comparative analysis of intervention practices and therefore contributes to the improvement of the design of policies (Barbier, 1993; Barbier et al., 1997; Turner et al, 2000). Quality is a critical factor in determining the values of wetlands. A healthy and functioning wetland may provide rich ecosystem services (Zedler and Kercher, 2005; Maltby, 2009).
The quantity of the wetland valuation practice has increased in relatively recent years. In the review by Heimlich et al. (1998), 33 studies over the last 26 years were listed and in Brander et al. (2009) there are more than 50 valuation studies for European inland wetlands. Based on primary studies of wetland valuation, meta-analysis has been adopted to explore the commonalities through inter-study comparisons, to find the general relationship between wetland values and its influential factors and to estimate wetland values of non-value areas. Examples include Brouwer et al. (1999), Woodward and Sui (2002), Brander et al. (2006), Brander et al. (2009), Ghermandi et al. (2010), etc.
However, the wetland quality factor has been ignored in most of primary studies and subsequently in the meta-analyses based on the primary studies. It is often the case that the provision of goods and services is indicated in a meta-analysis merely by binary variables, and that quality is not captured at all (Brander et al., 2007). This limitation may lead to generalisation errors and therefore to benefit transfer errors, which would probably lead to error in policy making for wetland sustainable development.
This paper is aimed at finding a more accurate and valid meta-regression function by introducing the wetland quality factor, a critical yet frequently missed...

Loading: Checking Spelling

0%

Read more

Saving the Ballona Wetlands Essay

2375 words - 10 pages Before development exploded in California, the state contained about 5 million acres of wetland habitat. Unfortunately, over the years California has been willing to part with 91 percent of its wetlands, Southern California having lost 95 percent. Los Angeles County has only one wetland remaining. This being the Ballona Wetlands located between Marina del Rey and the Westchester bluffs, it was once a major part of California’s natural wetland...

Wetlands Research Paper

6092 words - 24 pages Wetlands      When most people think of wetlands the first thing that will pop into their mind will be visions of swamps and flooded plains. These marshy lands would seem to have no purpose, while in reality they are the most precious form of ecosystem that we have in America. Wetlands contribute to biodiversity, clean water, flood control, and provide a habitat for millions of species of plants and animals. Even with...

Little River Wetland Project (Great Marsh)

2199 words - 9 pages An intricate balance has existed between man and the environment since the evolution of the Homo-sapiens’ species. At times throughout history, human ingenuity and will-power seemed to best nature, such as the transportation of water for miles across land in Roman aqueducts, the circumscribing of the globe by Amerigo Vespucci, or the first flight by the Wright brothers in Kitty Hawk, North Carolina; but although these feats were great, until the...

Salt Marshes: Unique Ecosystems

1664 words - 7 pages Eradication of the nutria is almost impossible at this point but conservationists are still doing their best to try and control them. Nutria are year around open season for hunters and some places will even pay you to bring in their pelts. Another invasive species that destroys the salt marsh is the feral pig. The feral pig escaped from domestication stock and can be found on 38% of the continent. Like the nutria, the feral pig can have up to 13...

International Framework for Economic Valuation of Wetland Areas

1923 words - 8 pages According to the definition given by the Ramsar Convention Manual (2013) “wetlands are areas where water is the primary factor controlling the environment and the associated plant and animal life” and it recognizes the existences of five major types of wetlands (Ramsar, 2013): 1) marine(coastal wetlands including coastal lagoons, rocky shores, and coral reefs) 2) estuarine(including deltas, tidal marshes, and mangrove swamps) 3) lacustrine...

Wetlands in the United States and the Need for their Conservation.

2344 words - 9 pages IntroductionWetlands can be considered the vital link between water and land. The term "wetlands" is actually a collective term for marshes, swamps, bogs, and similar areas found in generally flat vegetated areas, in depressions in the landscape, and between dry land and water along the edges of streams, rivers, lakes, and coastlines. Wetlands can be found in nearly every county and climatic zone in the

Hunting Helps the Environment

918 words - 4 pages It is early in the morning; the majestic Elk bugles in the distance. The sun is kissing the tops of the peaks with the most beautiful gold, and painting the clouds rose red. The men and women who enjoy the outdoors whether it is hunting or just hiking help make these types of moments possible. Hunting and the ecosystem is tied closely to conservation of land and animals. The articles of “Hunting and the ecosystem” written by the South Dakota...

The Florida Everglades

3121 words - 12 pages The Florida Everglades The Florida Everglades have been adversely impacted for decades because of human attempts to control this historical ‘River of Grass’. The reason for our insistence on attempting to control and manage the area can be defined in one word: water. There has always been plenty of water available within the Everglades’ ecosystem, but no logical way to extract it. Our extraction efforts eventually led to devastating...

The Mississippi Delta and Oil: Ecosystem Services and Human Health

1382 words - 6 pages Growing up near the Chesapeake Bay, I was bombarded with guest speakers since elementary school about protecting the environment. I knew what an ecosystem was by fifth grade, and in seventh grade our class went on a class trip to Smith Island and Port Isabel in the Chesapeake Bay for more intensive education about how humans are connected to ecosystems. Water and ecosystems are important to public health all over the globe, as water touches all...

Offshore Oil Drilling

1677 words - 7 pages The existence of crude oil has been known for centuries, and throughout time the growing demand for the resource has driven the exploration, and production to its highest expansion. The Earths' natural reserve of crude oil is finite; it is not a renewable resource. Corn and Copeland stated that based on survey studies one-half of the remaining undiscovered crude oil and natural gas lie under the oceans and seas. According to the book "Public...

The Loss of Coastal Wetlands

733 words - 3 pages The Loss of Coastal Wetlands This paper introduces the environmental concerns of the loss of coastal wetlands. The paper will discuss the significance of wetlands and the devastation that is occurring because of human activity. Wetlands are an essential element of our environment both ecological and societal; conservation will be essential for the preservation of these precious ecosystems. Globally coastal wetlands are disappearing at an...

The Florida Everglades ? A Wetlands Ecosystem Essay

2066 Words9 Pages

The Florida Everglades — A Wetlands Ecosystem

The Everglades, a vast wetlands ecosystem made up of marshes and swamps, begins at Lake Okeechobee, a large lake in the center of Florida, and ends in the Gulf of Mexico and Florida Bay. It is nearly 50 miles across and 110 miles long (Hinrichsen), and when viewed from the air, appears to be miles and miles of shallow water flowing through thick mats of grass. This perception has earned it the name “River of Grass”. Although it does flow like a river, the flow is so incredibly slow that, from a distance, it doesn’t seem to move at all.

All of the wildlife in the Everglades is totally dependent on the cycling of water. One example of this dependence is the feeding relationship between the…show more content…

As it thrashes its body from side to side, it creates a small hole filled with water. Plant matter and mud piled up around the edges of the hole create dry ground on which other plants eventually grow. After many years, grass, trees, and other plants surround these "gator holes" like fences. Gator holes are important to other species as well. As the water becomes scarce during the dry season, many animals search for food and remaining pockets of water. The gator holes attract crayfish, frogs, turtles, fish, and other aquatic species, all seeking refuge in the deeper waters of the gator holes. Muskrats, otters, deer, and raccoons, as well as a wide variety of beautiful birds, such as ibises, egrets, and herons, visit these sanctuaries to feed on the small animals that can be found there. Because alligators and the watery hollows they make play such an important role in the Everglades ecosystem, they are considered to be a keystone species since many other species depend upon them for their survival. This has earned them the nickname "keepers of the glades."

Due to constantly changing water levels, ecosystems like the Everglades can be very unpredictable places. Since the 1800s, people have tried to control the Everglades to prevent flooding (Blake). Large canals were built to send the water into the ocean and away from the Everglades. The land along the canals dried up and became more

Show More

One thought on “Essays In Wetland Ecosystems

Leave a comment

L'indirizzo email non verrà pubblicato. I campi obbligatori sono contrassegnati *