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    Describe (5) Factors or Threats That Affect Biodiversity: Class Section: Class Schedule

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    Kay Jean
    FACTORS or THREATS THAT AFFECT BIODIVERSITY

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    Describe (5) Factors or Threats That Affect Biodiversity: Class Section: Class Schedule

    Uploaded by

    Kay Jean
    16 views2 pages
    FACTORS or THREATS THAT AFFECT BIODIVERSITY

    Original Title

    BIODIVERSITY TASK

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    © © All Rights Reserved

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    FACTORS or THREATS THAT AFFECT BIODIVERSITY

    Copyright:

    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd
    Download as pdf or txt
    16 views2 pages

    Describe (5) Factors or Threats That Affect Biodiversity: Class Section: Class Schedule

    Uploaded by

    Kay Jean
    FACTORS or THREATS THAT AFFECT BIODIVERSITY

    Copyright:

    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd
    Download as pdf or txt
    of 2

    Biodiversity Task CLASS SECTION: CLASS SCHEDULE:

    READ the General Instructions Please !!


    1. Complete the worksheet
    2. Always fill out: Last name, First Name , MI and Class section and Schedule)
    3. Due for Submission on Thursday
    4. Follow the instructions properly!
    5. The assigned score for this task is 30 points
    6. No Credit Points for plagiarized work.
    _________________________________________________________________________
    Specific Instructions:
    *Watch the documentary videos for better understanding of the topic in Section 2
    of your Module (Learning Engagement 3)
    *Use references available on line for your answers.

    Part 1. Complete the table below. Use complete sentences for your answers (10 points)

    DESCRIBE ( 5) FACTORS or THREATS THAT AFFECT BIODIVERSITY

    1 Habitat Fragmentation

    Ecosystem conversion and ecosystem degradation contribute to habitat fragmentation. Habitat loss from
    exploitation of resources, agricultural conversion, and urbanization is the largest factor contributing to the
    loss of biodiversity. The consequent fragmentation of habitat results in small isolated patches of land that
    cannot maintain populations of species into the future.

    2 Pollution

    Atmospheric and hydrologic pollution have far-reaching negative effects on biodiversity. Pollution from
    burning fossil fuels such as oil, coal and gas can remain in the air as particle pollutants or fall to the ground as
    acid rain. Acid rain, which is primarily composed of sulfuric and nitric acid, causes acidification of lakes,
    streams and sensitive forest soils, and contributes to slower forest growth and tree damage at high
    elevations. In addition, chemical pollutants such as pesticides and herbicides leach into soils and watersheds.

    3 Global Climate Change

    Carbon dioxide released from burning fossil fuels and biomass, deforestation, and agricultural practices
    contributes to greenhouse gases, which prevent heat from escaping the earth’s surface. With the increase in
    temperature expected from increasing greenhouse gases, there will be higher levels of air pollution, greater
    variability in weather patterns, and changes in the distribution of vegetation in the landscape. Some species
    will not be able to adapt to these changes in the environment and will become extinct. However, it is
    expected that many plant and animal species will attempt to disperse to higher latitudes and altitudes as the
    temperature increases. Therefore, any barriers in the landscape, such as highways and urban areas that
    prevent movement to more hospitable environments, will result in loss of biodiversity.

    4 Increasing Wildlife Trade

    According to Nick Barnes, “Trade is another cause of biodiversity depletion that gives rise to conflict between
    North and South.” Global trade in wildlife is estimated to be over US $ 20 billion annually. Global trade
    includes at least 40,000 primates, ivory from at least 90,000 African elephants, 1 million orchids, 4 million live
    birds, 10 million reptile skins, 15 million furs and over 350 million tropical fish.

    5 Invasive species

    The ease with which one can travel the globe and the plenitude of transcontinental voyages has increased
    invasive species everywhere. Climate change affords yet another advantage to invasive species that bloom
    earlier in an extended growing season, taking firm hold and crowding out the new growth of native species.

    Regardless of the reason for its appearance in an ecosystem, an invasive species can cause the loss of
    biological diversity by choking out native plants and by displacing the habitat and food source of the animals
    and birds who live there.

    As the climate warms, invasive species are able to better take hold in areas where they bloom before native
    plants do in a particular area. As climate change leads to extended growing seasons in some areas, invasive
    plants take advantage by flowering earlier and crowding out less adaptable indigenous species.

    *Note:
    *No credit points for Plagiarized work
    List your References:
    Use the APA Format

    REFERENCES

    Arrington, D. (2015) Ecological niche-definition and importance. Retrieed from https://www.study.com

    Austin, D. and Macauley, M. (2001) Cutting through environmental issues:technology as a double-edged source.
    Retrieved from https://www.brookings.edu

    Chand, S. (n.d.) 6 main threats to biodiversity-explained. Retrieved from https://www.yourarticlelibrary.com

    DICTIONARY.COM (n.d.) Endangered. Retrieved from https:// www.dictionary.com

    GREENTUMBLE (2017) What are the major threats of biodiversity. Retrieved from https://www.greentumble.com

    Hancock, L. (n.d.) What is biodiversity. Retrieved from https://www.worldwildlife.org

    Hui, D. (2012) Food web: concept and applications. Retrieved from https://www.nature.com

    LeGuen, R. (2020) Food chains and food webs. Retrieved from https://https://wwf.panda.org

    Nature Trust British Columbia (n.d.) Threats to biodiversity. Retrieved from


    https://www.https://www.naturetrust.bc.ca

    Polaiah, S. (n.d.) Impact of technology on environment. Retrieved from https://www.ijesi.org

    Science Daily (n.d.) Extinction. Retrieved from https://www.sciencedaily.com

    Sharov, A. (n.d.) What is polulation ecology. Retrieved from https://www.https://web.ma.utexas.edu

    Stanley, M. (n.d.) Habitat. Retrieved from https://www.nationalgeographic.org

    The Editors of Encyclopedia Britannica (n.d.) community. Retrieved from httpa://britannica.com

    Tutorials Point (n.d.) Environmental studies-ecosystem. Retrieved from https://www.tutorialspoint.com

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