Climate Change Effects on Australia's Biodiversity and Unique Species

This report investigates the effects of climate change on Australia's biodiversity, emphasizing the threats to unique species and ecosystems. The report provides a detailed overview of the environmental impacts, including habitat degradation, deforestation, overgrazing, and the introduction of exotic species. It focuses on specific examples, such as the Great Barrier Reef, koalas, and the Blue Mountain Water Skink, analyzing how climate change exacerbates existing stressors and poses additional threats. The discussion covers the human adaptation options to increase resilience of threatened species and habitats in the Australian context that are likely to be impacted by climate change. The report highlights the potential for species decline and extinction and the need for conservation efforts. The findings underscore the importance of understanding and addressing climate change to protect Australia's rich biodiversity. The report also describes the various government initiatives and awareness campaigns to protect the Great Barrier Reef. It also illustrates the importance of Eucalyptus trees for the koalas and the threats that they are facing due to the destruction of their habitats. The study utilizes both primary and secondary sources to investigate the topic.

COVER PAGE.
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ABSTRACT.
The report covers Australia’s biodiversity. Significant parts of the report explain the
environmental impacts on nature due to continuous climate change in Australia. Different unique
species and features found in Australia have been discussed in detail showing their possibility of
existence in the next future. Examples of the individual species explained are koalas and
northern bettongs. The report generally indicates the effects of climate change in Australia to the
environment.
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Contents
COVER PAGE.................................................................................................................................i
ABSTRACT.....................................................................................................................................ii
INTRODUCTION...........................................................................................................................1
Pressure threatening biodiversity...............................................................................................1
Importance of this study..............................................................................................................1
BACKGROUND TO THE PROBLEMS FACING BIODIVERSITY...........................................2
Deforestation...............................................................................................................................2
Overgrazing..................................................................................................................................2
Introduction of Exotic Species.....................................................................................................2
Pollution.......................................................................................................................................2
Infrastructure development........................................................................................................2
RESULTS AND DISCUSSION......................................................................................................3
Great Barrier Reef........................................................................................................................4
Koalas..........................................................................................................................................4
Blue Mountain Water Skink........................................................................................................8
CONCLUSION……………………………………………………………………………………………………………………………9
REFERENCES............................................................................................................................10
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INTRODUCTION
Biodiversity is the various forms of life on the planet, ecosystem, or in a particular habitat
(World Meteorological Organization (2015).Biodiversity is essential to Australia in the
following ways; It helps in the production of raw materials that can be used for the manufacture
of food, and many livelihoods depend on it like farming. Biodiversity provides functioning
ecosystems that help in the production of clean water, the air we breathe and pollination of
plants(King, A. D, et al.).Many recreational activities rely on biodiversities like bird watching
and hiking. The global environment also is threatened by different factors. The factors that
threaten biodiversity include Forest fires, grazing, deforestation, clearing and fragmentation and
declining quantity of habitat. Also, the study of biodiversity is essential in many ways. Healthy
biodiversity provides several essential services for everyone to enjoy. The services can range
from ecosystem services, such as protection of water resources, soil formation, and protection,
nutrient storage, and recycling, pollution breakdown and absorption, contribution to climate
stability, Maintenance of ecosystems and Recovery from unpredictable events(Trewin, B.
(2018).Also biological resources, such as Food, Medicinal remedies, and pharmaceutical drugs,
Wood products, ornamental plants, breeding stocks, population reservoirs, future funds and
species, ecosystems, and diversity in genes. Lastly social benefits, such as education, and
monitoring, research, recreation and tourism, and cultural values. In general this study of
Australia's biodiversity is crucial as it helps us to understand the nature of the country’s
biodiversity and some of the factors affecting it.
BACKGROUND TO THE PROBLEMS FACING BIODIVERSITY.
Deforestation.
Cutting down trees increases the soil salinity, which as a result can affect water sources and areas
since water than drains from such places go to streams. In Australia, it is estimated that about 7%
of the region faces the problem of logging. Studies done in the recent past show that most soils in
the area always do have restricted ability to retain enough water (IPCC, 2013, ‘Climate Change,
2013).
Overgrazing.
In central Australia, overgrazing among the residents has been identified as one of the significant
activities that pollute the environment significantly. In most places, due to this practice, less than
2% of the original grass survives. Continuous overgrazing results in increased erosion and
environmental pollution (IPCC, 2018: Global warming of 1.5°C, 2018).
Introduction of Exotic Species.
It is approximated that the region Australia acquires up to 20 new diseases and pests yearly.
They epidemics include willows, rabbits and toads.
With the existence of about 2500 different species of plants in Australia, weeds present in farms
affect the continuous growth of the plants and the environment. They destroy rainforests, deserts,
farms, and bush lands (Perkins, SE et al.)
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Pollution.
In Australia, it is estimated that approximately 19000 tonnes of phosphorous and also about
141000 tonnes of nitrogen gas are always released into rivers. This exercise, in turn, affects the
oceans and coasts of the region, mainly environments close to the shores (Fawcett, R. J. B et al.)
Infrastructure development.
Continuous population growths and house developments along show lines have resulted in the
massive and constant degradation of the environment since people misuse the natural ecosystems
(Trewin, B, 2018).
RESULTS AND DISCUSSION
Great Barrier Reef
This one of Australia’s most marvelous gifts of nature. The great barrier found in the region has
great charmer as the world’s massive coral reef. The Great Reef constitutes hundreds of islands
with the world’s most beautiful beaches surroundings; it supports the existence and thriving of
marine animals and approximately over 3000 discrete barrier reefs with gorgeous layers of coral.
The Great Barrier Reef has become a significant tourist attraction for most scenery lovers. The
Great Barrier Reef contains unique and unusual features that look appealing to most people
(Herring, SC et al.).
Any individual who visits the Great Barrier Reef can appreciate the many amusing incidents
such as helicopter tours, snorkeling, self-sail, cruise ship tours, swimming with dolphins, scuba
diving, educational trips, whale watching, glass-bottomed oat viewing, sunbathing and semi-
submersibles. The Great Barrier Reef contains amazing coral layers and rocks that offer fantastic
scenery and experience that is unforgettable. The reef is usually 65 kilometers wide and about 15
kilometers and 150 kilometers offshore length (Intergovernmental Panel on Climate Change,
2012).
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Above is a map showing the Great Barrier Reef (Trewin, B, 2018).
Close or keen look on the Great Barrier Reef an individual or a tourist can be able to locate
beautiful coral garden that divulges underwater glamour inclusive of the world’s large assembly
of corals. The corals visible can amount up to 400 non-identical kinds of coral example
mollusks, dolphins, coral sponges, and rays. The Great reef barrier also is home to over 1500
types of marine animals, about 20 species of reptiles that include giant clams and turtles that last
to more than 120 decades. Lastly, the Great Barrier Reef is home to over 200 types of birds that
make the experience there marvelous and unforgettable (Lim, E-P et al.)
Human Adaptations.
The Australian government to protect the Great Barrier Reef has employed the following
techniques (Trewin, B, 2018).
The government has established the various marine areas and in turn, provided protection that
would limit overfishing or over usage of the available resources (Trewin, B, 2018).
Public awareness has been created among the Australian people educating them on the
importance of maintaining the Great Barrier Reef to the region (Trewin, B, 2018).
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Projects of ensuring restoration of already destroyed parts have been undertaken since the
government has taken the role of investing significantly in the recovery of such unique
features(Trewin, B, 2018).
Effects of Climate Change on the Great Barrier Reef.
Increased magnitude of severe weather events.
Increased extreme cyclones in Australia have obliterated and incapacitated the great barrier reef.
Increasing levels of rainfall in Australia has resulted in more freshwater and pushed sediments
out from the coast to the reef(Trewin, B, 2018).
Ocean acidification.
Changes of ocean acidity in Australia's great barrier reef has led to decreased volume of corals
that can put up skeletons, therefore reducing their ability to produce habitat for the great barrier
reef marine animals(Trewin, B, 2018).
In Australia since the 18th century the oceans there have absorbed almost 30% of carbon dioxide
released from continuous human activities. The carbon dioxide in the oceans has changed their
chemistry through a process called ocean acidification.This is the same thing that has influenced
the great barrier reef existence(Trewin, B, 2018).
Rising sea levels.
High sea levels in the Great reef barrier have resulted in increased levels of erosions while small
sea-level changes have led to land inundation which has caused significant changes in tidal
habits such as saltwater and mangroves intruding into other freshwater habitats(Trewin, B,
2018).
Facing the above and other human-caused pressure, the Great coral reef will be at risk of coral
disease and coral bleaching.
Koalas
Koalas in Australia they are considered as jewels, the animals have a sharp claw, fuzzy ears, ash-
colored hair, grizzly personality, and very furry hair. In the region, if you manage to kill koala
possibilities are that you can earn millions from its fur because it is wool is used in companies to
make coats that have high returns (Fawcett et al.).In Australia koalas being unique animals and
almost threatened to extinction; most people are making millions of dollars from the animals.
The koala species scattered through the Easter coast semi-tropical forest in Australia that starts as
far as the north Queensland, Victoria, a compact area in the south of Australia and New South
Wales (. Trewin, BC, et al.)
The koalas' species being an endangered species continuous attacks from the chlamydia pittance
virus has led to reducing the number of the animals. The species also are facing a lot of
challenges due to climate changes that have led to the continuous destruction of their habitats.
Epidemics such as logging of trees such as the eucalyptus that where the species mostly reside
has posed a challenge and has facilitated their decrease (Dittus, AJ et al.). Researches done in the
research past have shown that by 2030 the koalas may not have places to stay Example in
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Sydney the koala species can always be filmed by people crossing highways and roads to get to
other eucalyptus trees. The animals prefer Eucalyptus trees different from other trees, so they
have to migrate now and again to find new eucalyptus trees before they are cut down(Donat, MG
et al.).
Below is a table showing virus attacks on koalas that were submitted to the wildlife hospital
from 1996 to 2012(Griffith et al. (2013).
Aetiologies Frequency Proportion
Chlamydia-like signs 21,619 52
Trauma Motor
Vehicle
6,432 15.5
Wasting 5,935 14.3
Trauma Animal
Attack
2,154 5.2
Trauma other causes 1,170 2.8
Senescence 1,160 2.8
Other diseases 1,097 2.6
Undetermined 900 2.1
Cancer 420 1
Blind 678 1.6
Congenital/
Hereditary
41 0.1
Total 41,606 100
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Below is a graph figure that shows the total counts of trauma caused by koala species by
either vehicle(Griffith et al. (2013).
According to AJ Challinor et al., the koala animal has been explained as a very kind individual.
Koala’s species are subdivided into two whereby the southern koala has darker fur than the
northern one because of the temperature differences. The species also resemble the wombat since
it is explained that the two kinds somehow share ancestors dating back to 25 million years ago a
former land that segregated to make Africa, South America, and Australia. In the recent surveys
conducted in 2014, most individuals in Australia think that the koala species is somehow related
to the bear, which is not true at all. The koala is usually more like a bear that is grizzly and very
dangerous (Black, M.T et al.)
The koalas' species was first discovered in 1798 by Australian trappers. The koala animal being a
marsupial is always the most recognized in the world because of the hardships it has death with
over the years. In Australia, most exotic and very many rare animals have been discovered
reason being the isolation and remoteness of the area from most developed countries. According
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to Alexander, LV et al., Australia has been stated to be a giant lifeboat and massive ark that has
been cut from the modern world.
The binomial nomenclature for the koala's species is Phascolarctos cinereous borrowed from
Greek words phaseolus cinereous and arktos that mean pouch, ash-collared and bear
distinguishable. Although the koalas' species are always referred to as koala bears, they are very
firmly related to the wombats and never close to the bears. According to Alexander, L V. et al.,
the species was initially discovered 40 million ago. The species is mammal with the kingdom of
Chordate Phylum.
The Map below shows the distribution of koalas in Australia.
The map shows that most koalas can be located on Victoria, ACT, and some parts of Queensland
(Lim, E-P et al.).
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The table below shows the koala’s individual estimated distribution over five years (Lim, E-P et
al.).
Column1 Column2 Column3 Column4 Column5 Column6 Column7
KOALAS YEAR
PLACE 2009 2010 2011 2012 2013 2014
QUEENSLAND 12000 10000 5000 2500 1000 500
ACT 10000 9000 6000 4000 3000 2200
Victoria 12900 900 6000 5500 2400 1200
Close examinations show that the number of koalas in Queensland from 2009 to 2014 has
changed drastically compared to other places such as Victoria and ACT. The drastic change in
the numbers of koalas raises a lot of questions. The question can be answered by simply
understanding that the climate change in Australia has dramatically deteriorated over the years,
therefore, destroying the environment where the koalas depend on mostly. The figures in the
above show the estimated number of koalas from 2009 to 2014, which would not have changed
dramatically in 2019.
The koala's animals are unique, and that relates to its feeding habits. The animals always feed on
eucalyptus leaves so if anything tastes and smells like eucalyptus automatically that turns out as
food for the animals (Arblaster et al. (2014). The animal, when it comes to feeding habits, only
has one choice that being eucalyptus leaves different from being omnivores. Koalas are usually
found in southern and eastern parts of Australia, the animals are generally medium in size and
are considered to be important in Australia’s culture and nature. Because of their limited options
in food eating the animals usually have prolonged metabolism, they have healthy teeth and sharp
teeth for chewing and possess paws with claws to enhance hanging and climbing of eucalyptus
trees (Bulletin of the American Meteorological Society, 2014).
Human Adaptations.
The Australian government is playing a very vital role in ensuring the existence and protection of
the koala species. They have created the following projects to protect the animal (Lim, E-P et al.)
Koala management and conversation strategy have been designed to enhance public awareness
among the Australian people educating them on the benefits of an excellent environment to both
humans and the existence of animals((Lim, E-P et al.).
Agencies and critical groups such as the government have risen to ensure that threatened species
are well taken care of by creating parks where the animals can stay (Lim, E-P at el).
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The Australian government since 2008, it has invested more than $13.6 million to ensure that the
koala animal species are protected (Lim, E-P et al.).
The government has also encouraged species monitoring, improvement of the ecosystem,
community awareness to reduce habitat degradation, and development of education to ensure
people acquire knowledge on the importance of keeping maintained environment((Lim, E-P et
al.).
How climate change has affected Koalas.
Their diet
Koalas are over-particular tiny eaters. This animal species don’t eat anything else except just one
type of food that is eucalyptus leaves.
Increased Carbon dioxide levels in Australia have reduced the nourishing value of the
Eucalyptus leaves, and this is the only food source for the animals.The koala species are slow
and hence adapting to the decreased nutritional value is a tough task.Due to climate change in
Australia koalas are unable to establish new diet for them to survive(Lim, E-P et al.).
Below is an image showing koala feeding(Griffith et al. (2013).
Their homes
In 2013 Australia was the region hottest year recorded; this was a result of climate change.The
warm temperatures can always act as breeding space for bushfires.If the fires continue to
increase in Australia unnumbered home of koalas will be annihilated beyond restoration(Lim, E-
P et al.).
For example, during the Black Saturday bushfires Sam, the koala let David a firefighter hold and
pat her.Sam the Koala home was demolished in that fire, and the koala was lucky the firefighter
was there.Therefore more bushfires can mean that the situation will continuously occur(Lim, E-P
et al.).
Below is an image showing Sam the koala and David the firefighter(Griffith et al. (2013).
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