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Biodiversity Loss

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Catherine Webster

on 19 June 2014

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Transcript of Biodiversity Loss

Biodiversity Loss
What causes biodiversity loss?
There are five main causes of biodiversity loss:
1 out of 8 birds
1 out of 4 mammals
1 out of 4 conifers
1 out of 3 amphibians
6 out of 7 marine turtles
Up to 70 percent of the world's known species are at great risk of extinction if the global temperatures rise by just 3.5 degrees Celsius.
Are at threat of extinction
10 - 30 percent of the mammal, bird and amphibian species are threatened with extinction due to human actions.
Palm Oil
Palm oil is a very common ingredient in various foods and items.
Palm oil can be found in breakfast cereals, biscuits, bread, instant noodles, shampoos, candles, lipsticks, and many, many more items.
Deforestation results in damage to habitats and biodiversity. Many wildlife lose their habitats, and as a result are unable to function properly in their ecosystem.
However, cutting down the trees wipes away the forest environment, leaving nothing for the animals who survive there.
For resources such as firewood and paper, sometimes it is necessary to cut down trees for supplies.
Can you guess which of these foods
contains palm oil?
It is very important that we as members of the community contribute to helping reduce bidiversity loss.

It not only affects ecosystems and creatures far away, it has an impact on humans as well. We are all connected in the "web of life" and have an important place on this earth. If we continue the way we are going, the issue of biodiversity loss will keep increasing until it's too late for us to stop it.

Society can help reduce biodiversity loss by protecting areas, educating, and living sustainably. Buying products without palm oil is one of the small but significant steps we can take to end biodiversity loss.
- http://wwf.panda.org/about_our_earth/biodiversity/biodiversity/
"The rapid loss of species we are seeing today is estimated by experts to be between 1,000 and 10,000 times higher than the natural extinction rate"
Alteration and Loss of Habitats
Introduction of


species and genetically

modified organisms.
To answer this question, we first need to understand
what “biodiversity” means:

- It’s short for biological diversity, and it describes
the variety of life found on earth and all natural processes
- Different aspects of biodiversity have a very strong
each other; because everything in life is interlinked,
when one aspect affected, many other aspects are
also damaged

Over Exploitation of Resources
Examples include overfishing and hunting.
So, what is biodiversity loss?
I understand there may be a biodiversity crisis, but how does that affect me?
Prevention of Biodiversity Loss
Extra carbon dioxide is being released in the atmosphere from the combustion of fossil fuels. When these gases are released, they increase the greenhouse effect, making the earth warmer.

Even though the Earth’s temperature is only altered very slightly, this increase can cause vast environmental changes and impact biodiversity.

• Biodiversity is a resource that is depended on
by families, communities, nations and future generations
• Unfortunately, human activities are threatening biodiversity
• We are currently using 25% more natural resources than the Earth can sustain
• Reduced biodiversity can lead to people in the future facing an irregular supply of water, food supplies more vulnerable to disease and pests
~ Air Pollution ~
Pollution occurs when gases, dust, particles, smoke or fumes are introduced into the atmosphere. This is in a certain way that makes it harmful to living organisms.

The atmosphere is a blanket of air that is made up of various gases. It surrounds planet earth. This air becomes dirty or unclean, and is often contaminated with the different chemicals floating around.

Habitats of many different species are being altered and changed. An example of this is deforestation, which causes wildlife to lose their natural habitats.
As a result, animals don't have enough resources to survive (eg. not enough food, over populated species, ect.), resulting in starvation, sickness and eventually death.
We cannot bring back extinct species, but we can slow the biodiversity loss in several ways:

~ Water Pollution ~
Human littering and oil spills may not seem much to us, but they can very easily devestate marine environments. Oil spills can spread for miles, causing death and devestation. Floating plastic is not only unpleasant to look at, it is harmful for our environment.
20% of mammal and bird extinctions are due to the actions of species introduced to an area by human
As of 2011, it is estimated that there are now 2 billion cane toads in Australia
An example of a damaging introduced species is the cane toad.
100 cane toads
were introduced from Hawaii to Northern Queensland in 1935
2 ,000,000,000 across Australia!
Protecting areas
Preventing species
Promoting Sustainability
Image Referencing:
Over exploitation of resources is harvesting, hunting or fishing a particular species too quickly, and leaving it without enough time to recover, leaving their population unable to recover.
Two Examples Include


Causes of the loss of biodiversity
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Earth Day Canada. (n.d). What is Biodiversity?. Available: http://www.ecokids.ca/PUB/eco_info/topics/biodiversity/index.cfm. Last accessed 16th June 2014.

Introduction of Exotic Species.
Available: http://www.eniscuola.net/en/life/contenuti/biodiversity/left/loss-of-biodiversity/introduction-of-exotic-species/. Last accessed 16th June 2014.

Khoury, M. (2011).
Australia vs. the cane toad: Fair fight?
. Available: http://travel.cnn.com/sydney/visit/cane-toad-invasion-reaches-south-and-north-communities-fight-back-027094. Last accessed 16th June 2014.

Michael-Hogan, C. (2010).
Habitat Destruction.
Available: http://www.eoearth.org/view/article/153224/. Last accessed 16th June 2014.

Molloy, K.L. and Henderson, W.R. (Eds) (2006). S
cience of Cane Toad Invasion and Control.
Proceedings of the Invasive Animals

CRC/CSIRO/Qld NRM&W Cane Toad Workshop, June 2006, Brisbane. Invasive Animals Cooperative Research Centre, Canberra.

National Geographic. (2014).
Cane Toad.
Available: http://animals.nationalgeographic.com.au/animals/amphibians/cane-toad/. Last accessed 16th June 2014.

Palm Oil Investiagtions. (n.d).
Products Australia
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WWF. (2014). "
I understand there may be a biodiversity crisis, but how does that affect me?”
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