max
New Member
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Post by max on Aug 12, 2016 2:33:30 GMT
Feral cats, foxes and rabbits can be found in different locations across Australia including: houses, people’s backyards, parks, alleyways, outside of neighbourhood stores and are habitually spotted in forests. Feral cats are known to eat small mammals, birds, reptiles, amphibians, fish and insects. Foxes also feed off small mammals, birds and reptiles. Almost a third of a fox’s diet includes livestock such as lambs, calves, poultry, water fowl and goats. These animals are a huge threat to native animals, and some, plants. Feral animals are also possibly carriers of other animal’s diseases such as rabies, foot and mouth disease and parasites. we should be able(if not already) set traps and then hand them in |
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joao
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idk what to say
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Post by joao on Aug 12, 2016 2:37:11 GMT
I think overfishing has increased over the years
With over a billion people dependent on our global oceans for the delivery of animal protein, the seas are often thought of as our never-ending food basket. Here in Australia, our relationship with ocean produce is engrained in our national consciousness and most of our holidays – we love seafood to the point where we each consume around 25kgs of seafood a year.
But we’ve known for some years now that the oceans aren’t an endless resource. The most recent figures indicate that over 85% of the world’s fish stocks are now fished up to full capacity, or are over-fished (UN FAO 2012). In a world with an ever-expanding population, the question is how we can balance what we take from the seas and how we keep the ocean healthy, so we can ensure we have fish in the future.
We often hear the message that Australian fisheries are the best managed in the world, or packaged another way, that all Australian fisheries are sustainable. While it’s certainly true that we have better management in place than some other countries, international fisheries management is hardly stellar. And even though Australia has the third largest marine Exclusive Economic Zone (the area of ocean that we manage), our waters are quite low in nutrients and don’t hold a huge abundance of fish. This means we need to get the sustainability of our fisheries right the first time, and don’t have the luxury of trial and error.
Australian fisheries are managed by eight different jurisdictions, all of which are not equal in terms of the sustainability of their fisheries.
Fisheries from around 3 nautical miles out to the edge of Australia’s ocean realm are managed by the Commonwealth Government. Fisheries from the shoreline out to 3nm are managed by the State or the Territory Governments, although there is little consistency between how they all separately manage their resources. By value, the state fisheries are by far the most valuable, with Commonwealth managed fisheries only accounting for 15% of the total value of Australia’s $2 billion fishing industry.
www.marineconservation.org.au/pages/overfishing.html
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max
New Member
Posts: 12
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Post by max on Aug 12, 2016 2:37:14 GMT
Cane toads are an untouched issue in this discussion board. So I feel the need to expose this. Cane toads are a blight that have seem to have gone unnoticed in recent months, the thing people do not realise about the Cane toad is that it's a fast adapting frog, almost like a weed it can be everywhere. From personal experience I once saw a Cane toad dead on the road somewhere where it should not be, near the Blue Mountains in NSW. I later found out from my father that the Cane toad will slowly but surely envelop all of Australia within the next 20-30 years. There will soon be nowhere they will not be found. (This link should provide additional information concerning the fore mentioned) www.environment.gov.au/biodiversity/invasive-species/publications/factsheet-cane-toad-bufo-marinusI agree and we could make traps which could be a simple hole filled with water and this should reduce the cane toad population |
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Post by jaydyn on Aug 12, 2016 2:41:40 GMT
Ocean acidification is likely to be the most significant impact on the great barrier reef through climate change and "The oceans absorb carbon dioxide (CO2) from the atmosphere and are estimated to have absorbed about half the excess CO2 released by human activities in the past 200 years" "About half of this anthropogenic CO2 (carbon dioxide in the
atmosphere resulting from human activities, such as the burning of
fossil fuels, rather than natural processes) is in the upper 10 per cent
of oceans (less than 1000 meters depth) due to slow ocean mixing
processes".1
1 www.gbrmpa.gov.au/managing-the-reef/threats-to-the-reef/climate-change/how-climate-change-can-affect-the-reef/ocean-acidification accessed |
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Post by samlol16 on Aug 12, 2016 2:42:08 GMT
Australian agriculture benefitted from many different agricultural practices, formal and informal land grants, overseas capital and access to relatively cheap labour through Indigenous workers and indentured schemes. Combined with invention, ingenuity and hard work this has led to Australia becoming a leading exporter of fine food, meats and grains. However, from 1901 to 2009 there has been a dramatic decline proportionally in the income from wool, and the people employed in agriculture, from 14% to 3% ![]() . At the same time, there has been an increase in the head of cattle and the variety of profitable agricultural export industries. Most of Australia's agricultural products continue to be exported and farmers supply about 93 per cent of Australia's food. There have been many changes in farming methods over the last 200 years and Australian farmers have had to be adaptable as well as resilient and inventive. The challenges of access to fresh water, the legacy of high amounts of fertilisers, massive clearing, over grazing, a tyranny of distance, transport costs and feral animals, have tested Australian farmers to their limits. In response, farming has become more mechanised and reliant on technologies, as well as holistic as it seeks to become more sustainable. www.australia.gov.au/about-australia/australian-story/austn-farming-and-agricultureAttachments:
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Post by brodiecase on Aug 12, 2016 2:42:09 GMT
Feral cats, foxes and rabbits can be found in different locations across Australia including: houses, people’s backyards, parks, alleyways, outside of neighbourhood stores and are habitually spotted in forests. Feral cats are known to eat small mammals, birds, reptiles, amphibians, fish and insects. Foxes also feed off small mammals, birds and reptiles. Almost a third of a fox’s diet includes livestock such as lambs, calves, poultry, water fowl and goats. These animals are a huge threat to native animals, and some, plants. Feral animals are also possibly carriers of other animal’s diseases such as rabies, foot and mouth disease and parasites. i would have to completely agree with you here. Feral cats are a massive problem in Australia because they breed like crazy, making these animals a pest! |
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joao
New Member
idk what to say
Posts: 5
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Post by joao on Aug 12, 2016 2:42:09 GMT
I think overfishing has increased over the years
With over a billion people dependent on our global oceans for the delivery of animal protein, the seas are often thought of as our never-ending food basket. Here in Australia, our relationship with ocean produce is engrained in our national consciousness and most of our holidays – we love seafood to the point where we each consume around 25kgs of seafood a year.
But we’ve known for some years now that the oceans aren’t an endless resource. The most recent figures indicate that over 85% of the world’s fish stocks are now fished up to full capacity, or are over-fished (UN FAO 2012). In a world with an ever-expanding population, the question is how we can balance what we take from the seas and how we keep the ocean healthy, so we can ensure we have fish in the future.
We often hear the message that Australian fisheries are the best managed in the world, or packaged another way, that all Australian fisheries are sustainable. While it’s certainly true that we have better management in place than some other countries, international fisheries management is hardly stellar. And even though Australia has the third largest marine Exclusive Economic Zone (the area of ocean that we manage), our waters are quite low in nutrients and don’t hold a huge abundance of fish. This means we need to get the sustainability of our fisheries right the first time, and don’t have the luxury of trial and error.
Australian fisheries are managed by eight different jurisdictions, all of which are not equal in terms of the sustainability of their fisheries.
Fisheries from around 3 nautical miles out to the edge of Australia’s ocean realm are managed by the Commonwealth Government. Fisheries from the shoreline out to 3nm are managed by the State or the Territory Governments, although there is little consistency between how they all separately manage their resources. By value, the state fisheries are by far the most valuable, with Commonwealth managed fisheries only accounting for 15% of the total value of Australia’s $2 billion fishing industry. 1
1 www.marineconservation.org.au/pages/overfishing.html accessed on 11:30 am 12/8/2016
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Post by raelenecollins on Aug 12, 2016 4:23:57 GMT
Deforestation is unwise because one it the forest gives homes to animals, second tress release carbon dioxide which is one of the main sources of survival that humans need. When deforestation happen animals have to leave their natural habit. The forest is home to around two-thirds of the plants and animal species found, millions of people depend on these forests to survive. The planet cannot sustain a healthy life style without having healthy forest. Deforestations push animals out of their natural habits and some animals such as orang-utans are becoming extinct, leaving the local communities devastated. 20% of the global carbon emissions account for forest destruction. The countries that have high deforestation are Brazil, Indonesia, Thailand< the Democratic Republic of Congo and other parts of Africa and some parts of Eastern Europe. Indonesia has the most deforestation according to the GRID-Arendal; 15.79 million hectares have been lost to deforestation in Indonesia. According to the WWF half of the trees that are removed from forest are used as fuel, the more housing and urbanization, to create furniture, home and commercial items and to produce highly prized items such as palm oil. Deforestation affects the global climate change. “According to Michael Daley, associate professor of environmental science at Lasell College in Newton, Massachusetts, the No. 1 problem caused by deforestation is the impact on the global carbon cycle.” In 2012 according to Environmental Protection Agency, carbon dioxide was account for 82% of the U.S greenhouse gases. www.greenpeace.org/australia/en/what-we-do/forests/Forest-destruction/www.livescience.com/27692-deforestation.html |
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max
New Member
Posts: 12
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Post by max on Aug 18, 2016 2:04:29 GMT
Deforestation is unwise because one it the forest gives homes to animals, second tress release carbon dioxide which is one of the main sources of survival that humans need. When deforestation happen animals have to leave their natural habit. The forest is home to around two-thirds of the plants and animal species found, millions of people depend on these forests to survive. The planet cannot sustain a healthy life style without having healthy forest. Deforestations push animals out of their natural habits and some animals such as orang-utans are becoming extinct, leaving the local communities devastated. 20% of the global carbon emissions account for forest destruction. The countries that have high deforestation are Brazil, Indonesia, Thailand< the Democratic Republic of Congo and other parts of Africa and some parts of Eastern Europe. Indonesia has the most deforestation according to the GRID-Arendal; 15.79 million hectares have been lost to deforestation in Indonesia. According to the WWF half of the trees that are removed from forest are used as fuel, the more housing and urbanization, to create furniture, home and commercial items and to produce highly prized items such as palm oil. Deforestation affects the global climate change. “According to Michael Daley, associate professor of environmental science at Lasell College in Newton, Massachusetts, the No. 1 problem caused by deforestation is the impact on the global carbon cycle.” In 2012 according to Environmental Protection Agency, carbon dioxide was account for 82% of the U.S greenhouse gases. www.greenpeace.org/australia/en/what-we-do/forests/Forest-destruction/www.livescience.com/27692-deforestation.htmlI agree and I found this paragraph on a website to support my thought. The greatest loss with the longest-lasting effects from the ongoing destruction of wilderness will be the mass extinction of species that provide Earth with biodiversity. Although great extinctions have occurred in the past, none has occurred as rapidly or has been so much the result of the actions of a single species. The extinction rate of today may be 1,000 to 10,000 times the biological normal, or background, extinction rate of 1-10 species extinctions per year. rainforests.mongabay.com/0908.htm |
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Post by chandler on Aug 18, 2016 2:17:12 GMT
Pollution is still an issue in Australia as the Australian Antarctic Division states ...whether in the most remote of deserts or the busiest of cities, we see the discarded signs of human habitation everywhere... which is basically saying that what we drop travels far…Vehicle exhaust emissions, sewage, household refuse and chemicals litter the landscapes and pollute the oceans… we could prevent things like this by walking or riding to work and school, also by recycling our rubbish and using solar. I agree. the earth is going to run out of fossil fuel in the future and I consider we should start using renewable energy to reduce carbon emission according to Mr. Pham at CSC. |
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Post by amyledam on Aug 18, 2016 3:38:39 GMT
Deforestation is still currently a problem that is occurring in Australia because more houses are required to be built which means that more trees and land have to be cleared in the process. Many new suburbs are currently being built in the Darwin region due to the increase of the population and the new suburbs are being extended further out in the Palmerston area. The continuation of deforestation has increased since the European settlement in the late 18th century, despite the steady growth of the population within Australia and is still currently occurring . The process in order to degrade the land costs about one billion annually and further leaves Australia’s soil dry, damaged and results in many native Australian wildlife habitats destroyed . Journal of Plant Ecology, 2011. Little Left to lose: Deforestation and Forest Degradation in Australia since European Colonization, accessed 12 August, 2016. URL: jpe.oxfordjournals.org/content/5/1/109.full WWF, 2016. Environmental Problems in Australia, accessed 15 August, 2016. URL: wwf.panda.org/who_we_are/wwf_offices/australia/environmental_problems_in_australia/ |
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Post by dylanlichacz on Nov 24, 2016 2:46:25 GMT
Focus: Deforestation The concern of deforestation is still relevant today as we have been placed into the top ten countries that clear land. A decade ago 7% of Western Australia’s agriculture land suffered from too much salt which is due to deforestation. However this is small compared to what is expected further into the future, some scientist predict that in a few decades 17 million hectares of Australian farmland is going to suffer from having too much salt in the soil. This is a likely future for Australia unless we start to plant more trees then we cut down. Another major concern of deforestation is towns being slowly destroyed from the foundation upwards. This is because of rising groundwater that would usually be consumed by the tress. Another concern of rising ground water is the threat of it destroying 20,000km of major roads and 1,600km railway, and in the near future this threat is expected to double. Therefore Australia needs to stop cutting down more trees then we are planting, also Australia needs to stop clearing trees around towns, major roads and railways as this will lead to their destruction. References: Environmental problems in Australia (2006) Available at: wwf.panda.org/who_we_are/wwf_offices/australia/environmental_problems_in_australia/ (Accessed: 24 November 2016). Land clearing (2016) Available at: www.bushheritage.org.au/about/about-us/our-challenge/land-clearing (Accessed: 24 November 2016). |
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Post by emilymay on Nov 25, 2016 2:01:53 GMT
Infrastructure Development is a common thing in rich countries like Australia, it's things like; buildings, roads and power supplies which is useful for jobs, homes, getting from place to place and power to have electricity to cook, see with lights and watch TVs and charge phones, but when the infrastructure fails it causes a lot of problems. Things like road works can cause a lot of problems for the environment especially when the flow of traffic is slowed down and not kept moving as the cars sit there they don’t turn off their engines so the fumes end up collecting altogether, but if the cars were on a constant move they would get to where they wanted to be quicker letting off fewer fumes which would do less pollution, this is especially a problem down south where it is a lot busier with a bigger population density. Another big problem is with the rivers as they are polluted with waste and sewage from people, this can cause problems with fish and the wildlife in the rivers and the seas which could either kill off the fish or change their migration patterns which could cause problems for those that lives off of the fish. www.oxfam.org.au/what-we-do/infrastructure-people-and-environment/issues-and-impacts/ (25/11/16) |
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Post by cameronlange on Nov 25, 2016 2:44:27 GMT
Deforestation refers to the ‘’clearing of the earths forests on a massive scale which leads to the environment being damaged and the land being lost each year”. As far as we know the forests covers over 30% of the worlds land meaning the removal of the forests is huge towards species lives and habitats. Seeing this impact on the forests is generally seen for many different reasons such as, relations towards money and family needs, things such as agriculture for planting and farming which is then used within these removed areas. Another reason for deforestation of the world’s forests come from the making and supplying of paper and wood products which results in many trees to fall each year. Alongside this, areas are also illegally removed to make room for further deforestation, this means giving loggers the access towards cutting more wood from trees down in result of these removals. This then see’s further cutting of trees for uses in farming and infrastructure which are majorly seen from the removal of these areas and the use of wood resources for buildings and objects for everyday needs and accesses to more agriculture/farms.
Whilst having the effect of removing the largest land mass in the world, this also affects the habitats and environment towards millions of species each year. It has been said that “seventy percent of the Earth’s land animals and plants live in forests” which means deforestation is gradually destroying these living organisms home and habitats which can result in the killing and slaughters of different species and plants.
Whilst seeing the impact of organisms being destroyed, removing the trees deprives the forest of its canopy. This means less sun light rays will be blocked during the day whilst less being stored at night ending up in disruption of animals and plants as the temperature will extreme weather changes as people are gradually taking down a much needed biome for plants and animals to survive in.
Reference:
environment.nationalgeographic.com.au/environment/global-warming/deforestation-overview/ Accessed 25/11/16
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Post by emilymay on Nov 25, 2016 3:39:11 GMT
Overfishing and illegal fishing is a problem in Australia due to the fact most Australian’s rely on fish for food, ‘recent figures indicate that over 85% of the world’s fish stocks are now overfished up to full capacity, or are over-fished’ which isn’t a good thing since fish can’t reproduce as quick as it take the humans to demand more fish from the sea especially around the pacific ocean which has fish like salmon, cod and tuna which are the most common fish eaten by humans where 90% of them have been taken by humans from the ocean which is too many for nature to bring back more. www.marineconservation.org.au/pages/overfishing.html (25/11/16) www.greenpeace.org/australia/en/what-we-do/oceans/Oceans-in-crisis/ (25/11/16) |
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