• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

What are scientists doing to prevent the extinction of Laysan Ducks?

Extracts from this document...

Introduction

What are scientists doing to prevent the extinction of Laysan Ducks? Figrure 1. A picture of a Laysan Duck http://www.hear.org/starr/plants/images/image/?q=080531-4692 Introduction: The Laysan Duck is an endangered dabbling ducks endemic to the Laysan Island in the North-western Hawaiian Island. It is a small, dark duck with orange legs and an outstanding white eye-ring. "The amount of white around the eye and on the head varies between individuals, and some adult males also have a slight green iridescence to the dark head. The rest of the plumage is dark reddish brown plumage, heavily mottled dark brown, and an iridescent patch of colour on the wings, appears teal green, or blue. Male Laysan ducks have dark green bills, while the female's is brownish-pale."[7] "Anas laysanensis is the scientific name of Laysan Duck". [1] The Laysan Duck prefers land habitats to aquatic and aerial habitats and normally observed along the coast of Laysan Island or around the inland lake found on the island. This is where they live year round. "Studies of DNA in duck bones throughout the Hawaiian Islands have shown that the Laysan Duck's range once included the entire Hawaiian Archipelago before the mass extinctions that occurred in that region after Polynesian colonization between 400 and 600 AD." ...read more.

Middle

Captive breeding: Most endangered species goes through the process of captive breeding to preserve them. Captive breeding programmes can increase the number of individuals of the species if it's low. According to our visit on London Wetland centre, they also perform a captive breeding programme to maintain genetic diversity within the captive population. There are many advantages of captive breeding and I think it is very important to the environment. http://biology.usgs.gov/pierc/Native_Birds/Laysan_ducks.htm In order to perform a captive breeding programme, Scientists needs a place where they will do the captive breeding programme and that is Laysan Island. First they study the Laysan duck, do some research about them and count its population. Then they provide food to feed the ducks and make artificial nests for them or locate its natural nests. The next step is to use artificial incubator or Leave the eggs with the parents for them to hatch. "Non-sibling juvenile ducks were selected for translocation to maximize genetic variability of the Midway population."[4] Scientists transfer the baby ducks to another place and they attached radio transmitters to them in order to monitor their behaviour, movements and survival. ...read more.

Conclusion

Human can also benefit by using Laysan Ducks or other animals that prey on certain crop pests and it is less expensive than any chemical. "This process of agricultural method of controlling pest is called biological pest controls".[6] The disadvantage of conserving species is it could cost a lot of money to do a research and to preserve them. Preserving a species can be expensive because of its facilities, foods and daily maintenance. I learn that scientist have a huge part of saving the Laysan Duck from extinction. I also learn that introducing new species could have disadvantages as well to the species around them. There is also an effect of each individual species in our ecosystem therefore if one species will be extinct then it could have an affect to other species in different ways. * Websites: [1]http://en.wikipedia.org/wiki/Laysan_Duck [2]http://animaldiversity.ummz.umich.edu/site/accounts/information/Anas_laysanensis.html [3]http://www.fws.gov/pacificislands/fauna/laysanduck.html [4] http://biology.usgs.gov/pierc/Native_Birds/Laysan_ducks.htm [5]http://www.fws.gov/Pacific/ecoservices/endangered/recovery/LaysanDuckTeam.htm [6]http://en.wikipedia.org/wiki/Biological_pest_control [7] http://www.arkive.org/laysan-duck/anas-laysanensis/info.html [8] http://www.mass.gov/?pageID=eoeeaterminal&L=4&L0=Home&L1=Air%2C+Water+%26+Climate+Change&L2=Preserving+Water+Resources&L3=Water+Habitat+Restoration&sid=Eoeea&b=terminalcontent&f=eea_water_habitat_restoration&csid=Eoeea [9] http://en.wikipedia.org/wiki/Biodiversity#Human_benefits * Salters-Nuffield Advanced Biology for Edexcel AS Biology student book, ISBN: 978-1-4058-9607-8 * Habitat Conservation Planning, ISBN: 978-0292708068 * Waterfowl Ecology and Management, ISBN: 978-0471597704 * Notes from the visit to London Wetland centre Validity of sources: The sources above provide general information about Laysan ducks, habitats, conservation of species and environmental implication. The information is supported by authorities. The websites are all working and reliable. ?? ?? ?? ?? Bryan Pascual ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our AS and A Level Energy, Respiration & the Environment section.

Found what you're looking for?

  • Start learning 29% faster today
  • 150,000+ documents available
  • Just £6.99 a month

Not the one? Search for your essay title...
  • Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

See related essaysSee related essays

Related AS and A Level Energy, Respiration & the Environment essays

  1. Marked by a teacher

    To make sure we have plenty of energy in the future, it's up to ...

    4 star(s)

    Recycling these items -- grinding them up and reusing the material again -- uses less energy than it takes to make them from brand new, raw material. So, we must all recycle as much as we can. We can also save energy in our cars and trucks.

  2. Marked by a teacher

    The Effectiveness of Different Solutions to Prevent or Treat Malaria

    4 star(s)

    Toxic free heme builds up in the parasites, leading to their death. Quinine hunts for the pathogen and kills the organism causing the disease. Also it may cause an elevation in the pH of the pathogen, affecting the acidity of its cellular biology.

  1. Field trip report Mangrove ecosystem

    muddy and waterlogged > Table showing the animals found in the quadrat along the transect line: *Key: b = base of mangrove trunks ss = on soil surface us = under soil > The area covered by different species in 5 quadrats: 0m 10m 20m 30m 40m m = mosses

  2. Report on visit to Medway Hospital.

    The first is illustrated in figure 1; first a moving particle collides with the atom and transfers some extra energy to it. This causes some of the electrons to move up into higher orbits (more energy), when they sink back they emit this extra energy in the form of electromagnetic

  1. An investigation into the distribution of adult and juvenile limpets on a rocky shoreline.

    * Make sure the cross staff and ranging pole is straight when holding on the shore, also, the surface should be flat but not a rock or a hole. It is because the would affect the independent variable - the shore height.

  2. chemistry of renewable resources

    Energy 92 k/cals Protein 2.7g Carbohydrate 21.3g Fat 0.9g Dietary Fibre 2.5g Advantages of Foodstuff * Renewable and sustainable as they are obtained from plants which contain starch, sugars and oil. * Foods contain high energy levels which can be released into the body * Renewable and sustainable as they are obtained from plants which contain starch, sugars and oils.

  1. Weed study. Dandelions - descrption and characteristics. Investigation to dandelion distribution.

    The fair testing will apply to all my factors. Fair testing will help me to attain accurate results, to make my experiment successful. I also aim that I repeat my experiment, at least twice. This is vital in my experiment. With the secondary results I can compare the both to see whether or not my results are similar.

  2. Malaria Issue Report

    The researchers also collected specimens of Anopheles gambiae, which is the type of mosquito species responsible for transmitting malaria to humans in Africa. Between 2007 and 2010 the proportion of the insects with a genetic resistance rose from 8% to 48%.

  • Over 160,000 pieces
    of student written work
  • Annotated by
    experienced teachers
  • Ideas and feedback to
    improve your own work