Human Influences on Ecosystems PDF

Human Influences, Ecosystems Habitat Destruction Conservation HRISTIAN SCIENCE MONITOR OPEN www.csmonitor.com/Science/2016/1026/Ice-shelf-melting-seen-to-accelerate-in-West-Antarctica sed 31.03.17  Habi...

Human Influences, Ecosystems Habitat Destruction Conservation HRISTIAN SCIENCE MONITOR OPEN www.csmonitor.com/Science/2016/1026/Ice-shelf-melting-seen-to-accelerate-in-West-Antarctica sed 31.03.17  Habitat Destruction A. Ecosystems B. Biodiversity C. Habitat Destruction D. Undesirable Effects obe Stock ps://stock.adobe.com/search?k=habitat+destruction 06.24  A. Ecosystems 1. An ecosystem is a unit containing all of the organisms and their environment a. interacting together in a given area b. e.g. a lake_ author unknown address unknown accessed unknown  2. In an ecosystem, the habitat and the community are considered together a. climate, temperature and humidity b. abiotic factors, oxygen, carbon dioxide, light, and water c. biotic factors, predators, food, and mates_ rcanderson PHOTOGRAPHY p://marcanderson.photoshelter.com/image/I0000nL6cPXC0JAw essed 13.04.16  B. Biodiversity 1. Biodiversity is the number of different species that live in an area a. the range and variety of different species b. within an ecosystem_ ED www.yourweather.co.uk/news/science/expedition-staggering-microbial-diversity-pacific-ocean-coral-reefs-wildlife.html d 16.06.24  c. considers not only species richness d. also variation within a species, distribution, and population size_ rrington /365barrington.com/2020/01/19/2019-christmas-bird-count-informs-population-trends-globally/ ed 16.06.24  2. High biodiversity, refers to lots of different species, with a lot of variation, evenly distributed_ be Stock PLAY ps://stock.adobe.com/search?k=%22mossy+forest%22 essed 16.06.24  Think about it! C. Habitat Destruction WHAT HUMAN ACTIVITIES MIGHT 1. There are a number of reasons BE RESPONSIBLE FOR THE LOSS for habitat destruction OF HABITATS ON EARTH? a. crops and livestock b. natural resources c. pollution_ ark01 THINK //minapark01.mx/?a=forest-logging;-its-types-impacts-and-solutions-bb-agKzaeh8 sed 17.06.24  2. Increased area for housing, crop plant production and livestock production a. deforestation, cutting down large number of trees, rainforests b. full of many species of plants and animals, high species diversity_ enmatters PLAY ps://www.greenmatters.com/food/advantages-of-crop-rotation cessed 17.06.24  3. Extraction of natural resources a. logging, wood used for building, making furniture, and paper b. fossil fuels, coal and oil, burnt for energy, or used to make plastics_ ers ://www.reuters.com/business/energy/oil-edges-lower-ahead-fed-meeting-2023-06-12/ ssed 17.06.24  4. Freshwater and marine pollution a. most aquatic organisms respire aerobically b. fertilizers and sewage can pollute waters c. leads to eutrophication, decomposers use up available oxygen_ ERICAN OCEANS ps://www.americanoceans.org/facts/what-is-eutrophication/ cessed 17.06.24  D. Undesirable Effects 1. The undesirable effects of deforestation, e.g. habitat destruction a. reducing biodiversity b. extinction c. loss of soil_ ENCING ps://sciencing.com/four-consequences-deforestation-7622.html essed 25.08.18  d. flooding e. increase of carbon dioxide in the atmosphere_ our Times www.nytimes.com/2006/12/12/world/africa/12flood.html?n=Top/News/Science/Topics/Global%20Warming sed 17.02.09  2. Undesirable effects of deforestation on the environment a. loss of biodiversity, species adapted to living in a particular habitat b. extinction, due to habitat destruction, not large enough to support breeding populations_ ANIMALS VOICE erbiananimalsvoice.com/2017/01/19/over-60-of-the-worlds-primates-face-extinction-due-to-deforestation-and-palm-oil-production/ 25.08.18  c. loss of soil, loss of plant coverage leads to erosion by wind and water d. flooding, lack of roots to absorb water, taken up and transported to leaves, transpiration_ redearth PLAY tps://www.tiredearth.com/64148413868835 ccessed 25.08.18  e. increase of carbon dioxide, removal of forests leaves fewer trees, less photosynthesis_ imate news PLAY nsideclimatenews.org/news/18052016/atmospheric-co2-carbon-dioxide-400-ppm-climate-change-keeling-curve d 25.08.18 The End  Conservation A. Endangered or Extinct B. Conserve the Endangered ughCo. s://www.thoughtco.com/profile-of-the-endangered-amur-leopard-1182000 essed 19.06.24  A. Endangered or Extinct 1. Organisms become endangered or extinct for reasons including a. climate change b. habitat destruction, hunting, and overharvesting c. pollution and introduced species_ m/news/2015/07/rio-de-janeiro-olympics-2016-raw-sewage-ap-bacteria-virus-feces-guanabara-bay-ocean-water-summer-athletes-sick-infected-risk-health-hazard-viral-levels-pollut 4.16  2. Climate change a. carbon dioxide and methane are greenhouse gases b. act like a blanket, trapping heat, keeping the Earth warm c. increased amounts cause an enhanced greenhouse effect_ nur alam’s world http://www.nuralam.net/greenhouse-effect/ ccessed 06.04.17  d. this may contribute to climate change e. areas of low rainfall might become desert, others might develop more violent storms f. could lead to extinction_ ohn shaw photography http://www.johnshawphoto.com/permafrost/ accessed 06.04.17  3. Habitat destruction a. if a habitat is destroyed, then species may have nowhere to live b. organisms adapted may become extinct_ ue Earth /dialogue.earth/en/forests/banning-high-deforestation-palm-oil-imports-would-barely-reduce-forest-loss/ ed 19.06.24  4. Hunting and overharvesting a. a. will damage food chains as other organisms also consume them b. these organisms will ​not have enough food to survive_ s://www.cnn.com/2011/11/10/world/africa/rhino-extinct-species-report/index.html ssed 19.06.24  5. Pollution a. chemicals may contain heavy metals, lead, cadmium, and mercury, toxic to living things, stops enzymes from working_ ctors tps://www.vecteezy.com/free-photos/fish-plastic-pollution cessed 20.06.24  b. rubbish, poisons plankton, upsetting food chain c. eutrophication d. faeces may contain disease causing pathogens_ elograph ://www.telegraph.co.uk/news/2018/03/09/could-krill-secret-weapon-oceans-plastic-crisis/ sed 27.08.18  6. Introduced species a. exotic species can disrupt ecosystems and harm native species b. invasive species outcompete natives, causing ecological damage_ ONAL WILDLIFE FEDEERATION ://www.nwf.org/Educational-Resources/Wildlife-Guide/Threats-to-Wildlife/Invasive-Species ssed 19.06.24  B. Conserve the Endangered 1. There is a need for the conservation of biodiversity and the natural environment a. as habitats are destroyed, species adapted to living there become threatened_ OOP WHOOP PLAY s://www.scoopwhoop.com/inothernews/animal-species-to-be-extinct-soon/ essed 27.08.18  b. tropical rainforests, deforested, home to thousands of species c. wetlands, swamps, drained for farming and development_ mpic PENINSULA s://olympicpeninsula.org/viewing-waterfalls-in-olympic-peninsula-rain-forests/ ssed 20.06.24  Think about it! WHAT ARE SOME ENDANGERED d. current estimates indicate SPECIES YOU HAVE HEARD OF? we may now be losing one plant and one animal species every 30 minutes_ ALL ABOUT WILDLIFE THINK http://www.allaboutwildlife.com/vaquita accessed 04.06.17  2. Endangered species can be conserved through a. monitoring and protecting species and habitats_ itannica tps://www.britannica.com/animal/African-forest-elephant cessed 20.06.24  b. education c. captive breeding programmes d. seed banks_ OP ps://salevansvs.shop/product_details/16632593.html cessed 20.06.24 The End