How Does Eutrophication Work? Causes, Process and Examples - Earth How. Eutrophication occurs in 4 simple steps: EXCESS NUTRIENTS: First, farmers apply fertilizer to the soil.
Then, excess nutrients run off from the field into the water.ALGAE BLOOM: Next, the fertilizer rich in nitrate and phosphate spark the overgrowth of algae in water bodies.OXYGEN DEPLETION: When algae forms, it blocks sunlight from entering water and uses up oxygen. Eventually, water becomes oxygen-depleted.DEAD ZONES: Finally, water that is completely depleted of oxygen becomes a dead zone and can no longer support life. Now that you have the basics of the eutrophication process, let’s detail the causes and examples of eutrophication in lakes. In Greek, eutrophication means “well-nourished”.
Biodiversity key terms. Biodiversity threat quotes. Ecotones. No Planet B. Richness by latitude. Wildlife Rebellion. I love this!!! @verulamGeogHoD #vocabulary #literacy #geography… Benjamin', the last known surviving Tasmanian Tiger. When he died in 1936, the species became extinct.… Simon Kuestenmacher sur Twitter : "Since the 1950s many indicators (graphic) grew massively. Collectively this has massive impacts on local, regional and global ecosystems. Managing such ecosystems while allowing people to escape poverty is pretty darn ha. Nature's Heartbeat.
Destruction of nature as dangerous as climate change, scientists warn. Human destruction of nature is rapidly eroding the world’s capacity to provide food, water and security to billions of people, according to the most comprehensive biodiversity study in more than a decade.
Such is the rate of decline that the risks posed by biodiversity loss should be considered on the same scale as those of climate change, noted the authors of the UN-backed report, which was released in Medellin, Colombia on Friday. Among the standout findings are that exploitable fisheries in the world’s most populous region – the Asia-Pacific – are on course to decline to zero by 2048; that freshwater availability in the Americas has halved since the 1950s and that 42% of land species in Europe have declined in the past decade. Underscoring the grim trends, this report was released in the week that the decimation of French bird populations was revealed, as well as the death of the last male northern white rhinoceros, leaving the species only two females from extinction.
Global Ecosystem Explorer. The term APHERCOTROPISM refers to the response an organism makes as it grows to overcome an obstacle in its way. A family thylacine or 'Tasmanian tigers' in captivity, circa 1930. The last thylacine died in captivity in 1936. Word(s) of the day: “extinction debt” - the future extinction of species that is already assured due to past events (e.g. habitat destructio… “Extinction is how evolution works” is to conservation as “climate has changed in the past” is to pollution control. *****Biomes, seasonality and ecotones: The Changing Colors of our Living Planet: While @NASA began monitoring life on land in the 1970s with #Landsat satellites, this fall marks…
Maps Articles : Maps Reveal How Global Consumption Hurts Wildlife. What is an ecosystem? - Internet Geography. Organisms within an ecosystem can be classed as producers, consumers or decomposers.
Energy flows through these organisms within the ecosystem. Producers, such as a trees, produce their own food and begin this cycle. Using energy from the sun they produce food. They do this by photosynthesis. Most producers are plants, but there are some small organisms that produce food through photosynthesis as well. The producers are eaten by primary consumers that cannot produce their own food, such as a giraffe. Decomposers and break down dead plants and animals. A food chain shows the relationships between these feeding groups. The yearly cycle of Earth's biosphere. Leonard Eisenberg's Tree of Life. As well as #biodiversity, we need to talk about collapse of #bioabundance - the collapse in animal populations. ‘The windscreen phenomenon’ - why your car is no longer covered in dead insects. Uli Westphal. Elephas Anthropogenus After the fall of the Roman Empire, elephants virtually disappeared from Western Europe.
Scientists discover a new flower of Shetland. Scientists have discovered a brand new flower in Shetland.
Plant life cycle shows a breathing Earth. This cat named Musya has adopted and nursed a litter of eight orphaned hedgehogs! *****There are not many left. #savetherhino. Otters see a butterfly. Humming Bird Hawkmoth. *****80% of the planet’s animal biomass gets around on six legs. WATCH: A mama elephant gently protects her curious baby boy from onlookers. These 'Indestructible' Animals Would Survive a Planet-Wide Apocalypse. The world's most robust animals may very well survive until the sun stops shining.
Also known as water bears, tardigrades are tiny water-dwelling creatures famed for their resiliency. *****Local animal migrations displayed like flight arrivals/departures board. San Diego #EsriUC. One of my favourite bits of today's GEE Project training- how we've taken ideas from nature. How could we take more to be sustainable? □ This osprey was going to drown until she bravely reached out to save him... □ Scientists are accidentally helping driving rare species to extinction. Here's why. If you open Google and start typing “Chinese cave gecko”, the text will auto-populate to “Chinese cave gecko for sale” – just US$150, with delivery.
This extremely rare species is just one of an increasingly large number of animals being pushed to extinction in the wild by animal trafficking. What’s shocking is that the illegal trade in Chinese cave geckoes began so soon after they were first scientifically described in the early 2000s. It’s not an isolated case; poachers are trawling scientific papers for information on the location and habits of new, rare species. As we argue in an essay published today in Science, scientists may have to rethink how much information we publicly publish.
Ironically, the principles of open access and transparency have led to the creation of detailed online databases that pose a very real threat to endangered species. Rare footage of extinct animals. The Earth breathes, and it is beautiful Map by @John_M_Nelson. Extinct Thylacine (aka Tasmanian Tiger) family at Beaumaris Zoo in Hobart, 1910. Mesmerizing Migration Map: watch how 118 bird species migrate up and down the western hemisphere. *****Animal size comparison. This is how a spider buries itself. *****5 animals thought to be extinct, but they're not: Parrots, toads and elephants. Read more. One year of seasonal transformations by @John_M_Nelson. *****Greatest tackle in animal history (top predator) The only photograph of a living Quagga from 1870. This species is now extinct. *****Ecoregions 2017 (Interactive slide layer map) *****So, Jaguars are the most badass cats on earth (top predator)
*****Bird migration GIS: Mesmerizing migration: 118 bird species migrate across a map of the Western Hemisphere. *****Earth - Plants talk to each other using an internet of fungus e.g. tomato plant warning system (decomposers) *****Ecological footprint: Somebody finally measured humanity's impact on Earth. And here's the answer. Great #dataviz for #geography fans: Landmass by longitude and by latitude. From the awesome blog. #geographyteacher. How Australia's climate compares to the rest of the world. *****Electron microscope: A bacterium on a diatom on an amphipod! The woolly mammoths range at its peak - How many Earths do we need? Image copyright Thinkstock It has been suggested that if everyone on the planet consumed as much as the average US citizen, four Earths would be needed to sustain them.
But where does this claim originate, and how is it calculated? The world's seven billion people consume varying amounts of the planet's resources. Compare the lifestyle of a subsistence farmer with that of a wealthy city-dweller in a developed country. More land is required to grow the city dweller's food, more materials are used to build the city dweller's home and workplace, more energy is required for transport, heating and cooling. Vintage Style Travel Posters Invite Tourists To See Extinct Animals. You can still visit Costa Rica, but you'll never find a golden toad there.
At least not any more. That's because unfortunately, travel does not include time travel. The last known Tasmanian Tiger photographed in 1933. They are now extinct. The historical and present day range of African lions Source. The UCIN Red List of Threatened species. Good satire on #biodiversity and product diversity by @TheOnion. Post it note food webs with year 10! what will happen if.... □□□#pedagoofriday #geographyteacher #ukedchat.
New paper by @duarteoceans: Export from #Seagrass Meadows Contributes to Marine Carbon Sequestration #Bluecarbon. There are 18 species of penguin, and after albatrosses, they're the most threatened group of seabirds #PenguinAwarenessDay. ***The top 10 most biodiverse countries. #1: Brazil Brazil is the Earth’s biodiversity champion.
Between the Amazon rainforest and Mata Atlantica forest, the woody savana-like cerrado, the massive inland swamp known as the Pantanal, and a range of other terrestrial and aquatic ecosystems, Brazil leads the world in plant and amphibian species counts. It ranks second in mammals and amphibians, third in birds, reptiles and fish. Small Countries: Pockets of Biodiversity. 1764 census reveals St Kilda residents feasted on 1,600 seabirds a day. A 250-year-old census has revealed St Kilda islanders ate more than 1,600 seabirds every day. The document is the earliest recorded list of the archipelago’s population and was discovered by archivists among a hoard of clan papers.
The census lists 90 people living on the main island of Hirta on 15 June 1764 – 38 males and 52 females, including 19 families and nine individuals. Further light is shed on the islanders’ diet, with each resident said to eat “36 wild fouls eggs and 18 fouls” daily – an island-wide total of 3,240 eggs and 1,620 birds every day. Back to life: the world of de-extinction. Is extinction forever? While most would assume that yes, extinction is the ultimate end-point, a fate from which no species can return, Chris Fitch investigates the small but growing movement that dares to disagree The passenger pigeon was a legendary species.
Flying in unfathomably large numbers across North America, with potentially many millions within a single flock, their migration was once one of nature’s great spectacles. Duran Duran trending, you say? Oh alright then, you've twisted our arm - here's David Attenborough covering Planet Earth. #хиломикт, попадается в Атлантике(зона Марокко) #Chilomycterus caught in in Morocco’s fishing zone. #фото_с_борта_судна. ***Changing seasons seen from space over one year. Amazing how much difference there is in the sunlight! The worlds actual deadliest animals. 8 facts GIS has revealed about animals. Scientists have studied giraffes' physiology, but they still don’t know much about how the species as a whole operates in the wild. They don’t seem to have clear leaders, so we’re just learning how they organize into herds. We don’t know how they communicate.
We don’t know why they fight. We don’t fully understand how far they will range. And scientists only recently discovered that there are not one, but four, species of giraffe – northern, southern, reticulated and Masai – each with unique genetics and spot patterns ranging from orange polygons to black blotches. Between 2011 and 2012, Namibia’s Ministry of Environment and Tourism moved more than 50 southern giraffes from Etosha National Park to three community conservancies. [Source: Julian Fennessy, Giraffe Conservation Foundation] Dinosaurs are transported on the Hudson River to the 1964 World’s Fair. Half of the world's ecosystems are at risk. Habitat loss is the most insidious of all threats facing land-living wildlife, and protected areas like national parks are one of the best ways to combat the destruction.
Hyperwall: Yearly Cycle of Earth's Biosphere. Wait for it . . Mimosa pudica plants fold up their leaves to protect themselves when disturbed. Scientists have found that a vast underground network of fungi helps trees communicate: the “wood wide web” Peru's Manu National Park declared world's top biodiversity hotspot. Earth's seasons time lapse from space. Green: Vegetation on Our Planet. Invasive species: “…literally thousands of weta…” The forest floor before introduced. 80-Year-Old Man Hasn’t Watered This Sealed Bottle Garden Since 1972 And It’s Still Alive. Decomposers: Fungi, Algae and Lichen. #RonaldLampitt. Animated #map shows mean temperature over a year. #edchat #geoteacher. Jonathan The Tortoise Photo1902 And Today. Terrestrial Ecoregions of North America. 1. Hawaiian Moist Forests2. South Florida Rocklands3. Puerto Rican Moist Forests (not shown, major part of the island)4. Hawaiian Dry Forests5.
Puerto Rican Moist Forests (not shown, southern edge of the island)6. Species richness: Biodiversity Quality Calculator. The biodiversity quality calculator (BQC) was created by Dr Alan Feest and comprises a set of biodiversity quality indices for professional ecologists and scientific researchers from a single sampling dataset. Nature Soundmap.
On this day: Death of the last Tasmanian tiger. The effects of Eutrophication - Home. What is biodiversity? (video clip)