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Australian Tropical Savanna
Transcript of Australian Tropical Savanna
Information Biking Attractions There are two main seasons in the Australian Tropical Savanna, the rainy season and the dry season Weather Report Warnings Rich in Culture Analysis and Evaluation Location The Australian tropical savanna is an area of dense grass and scattered trees that stretches across northern Australia from Broome to Townsville. Abiotic Factors Soil Fire Rainfall -Sandstone Outcrop - is characterized by two very different seasons: the "wet" and the "dry". The dry season lasts 5 to 6 months, usually from May to October. The wet season lasts 5 to 6 months and lasts from December to March.
- usually only grass grows in the savanna, with some trees
- trees can only grow in the wet season
- precipitation levels have a direct influence on the type of vegetation that can survive. The Sandstone Outcrop is a small hill/mountain made out of rocks. There are very rough, high places, but there are smoother routes next to the outcrop If you want extreme style of sport, you can visit a higher outcrop and try out rock climbing Cattle Driving - fire in the savanna can be caused deliberately by humans (such as farmers) or naturally (by electrical storms in the summer)
- The practice is carried out to flush game or as part of cultivation
- plants have become resistant to fire, adopting characteristics such as ligneous sprouting roots and thick bark.
- Vegetation will differ depending on the texture and depth of the soil.
-Soils composed of a fine clay or silt are able to retain adequate water in the upper layers Native Plants Adaptations of Native Plants Native Animals Adaptations Threats to Biome Endangered Species Impact of Possible Climate Change Jarrah Tree - a species of eucalyptus
- grows to be about 40-50 meters high, with a trunk diameter of 3 meters
- trunk of jarrah is long, straight, and has no branches
- The jarrah tree can live as long as 500 years. Kangaroo Paw - is the floral emblem of Western Australia
- flowers grow up to 10 cm long
- stem can be a meter high Cycas Armstrongii - have been traced back to prehistoric times.
- Members of the cycad (Cycadaceae) family,
- male and female organs are found on separate plants.
- 4 meters high, 15cm diameter * long roots makes it possible to pull up underground water during a drought. This drought resistance is helpful in its natural dry habitat. The Outback Spectacular This wonderful place to enjoy your dinner, is literally spectacular. This place provide you a wide variety of entertainment for your pleasure. Dinner is obviously a part of the whole place, but the special thing about the Outback Spectacular, is the show and the live music for your eyes and ears. Jarrah Tree - tiny wooly hairs on its flowers help by make it taste weird to predators, so they won't eat it
- The little hairs also help by holding on to water because it grows in a dry climate. Kangaroo Paw Cycas Armstrongii Annual grass fires are common in its natural habitats. The species is extremely fire tolerant Emu Koala Bear Wombat Platypus -Adults are about 1.5-2m tall and weigh 50-55kg
-Eat fruits, flowers, insects, seeds -varies weight from 5-6kg to 13-14kg
-color of fur also changes through season
-eats eucalyptus leaves -70-120cm, up to 27kg
-feed off of grasses, roots, inner barks of trees, fungi -One of the two egg laying mammals
-Size and weight vary
- about half-meter in length and 1-2 kg in weight Emu Koala Wombat Platypus Average Yearly Temperature
23ºC - 27ºC The Australian Tropical Savanna is very rich in culture.
- This biome is aboriginal
- provides a home for many endangered and not endangered plants and animals
- provides food for animals There wouldn't be cute animals, such as Kangaroos or Koalas! used to fly but no predators -have rough paws so they don't slip off of trees (away from predators) - can dig quickly through rough country
- helps forage for plant roots (one of their food sources), and dig burrows for shelter. - mostly nocturnal
- most of the platypus’ predators are day hunters
- has changed the way it walks
- webbed feet that aids swimming makes it hard to walk
- walks on their knuckles at all times while they are on dry land. Recreational Activities 2 Points of Interest 2 Adjacent/Nearby Biomes Average yearly Precipitation
- 4 inches during dry season
-15-25inches during wet season - Desert
- Tropical Forest Kakadu National Park Gregory National Park covers an area of around 13,000 square km - located within the Alligator Rivers Region of the Northern Territory of Australia
- covers an area of 19,804 km Gear/Supplies to bring:
If visiting during dry seasons
-A small jacket, in case of winds (chilly)
-If visiting during wet seasons
- umbrella (it will rain a lot)
-Raincoat - Human usage of the savanna biome is increasing, which can lead to degradation of vegetation and soil resources, resulting in nutrient losses and shifts in water balance and availability.
- foreign pests and weeds that have been brought to this biome threaten the survival of the region's ecosystems and native species.
- Large areas of savanna have been cleared of trees (for grazing), and this clearing is continuing today Synemon Plana (Golden Sun Moth): -medium-sized, day-flying moth
- The wingspan of females and males is about 3.1 cm and 3.4 cm respectively
- Both males and females have clubbed antennae
- The Golden Sun Moth does not have a functional mouthpart and cannot feed; survive for 1-4 days Acacia Harpophylla (Brigalow) -The height of the tree layer varies from about 9 m in low rainfall areas (averaging around 500mm/year) to around 25 m in higher rainfall areas (averaging around 750mm/year)
- endemic tree of Australia - endangered because of changed fire frequency, predation by domestic animals
- 50–70 mm
- Earless dragons lack an external ear opening and functional ear drum Tympanocryptis Pinguicolla (Grassland Earless Dragon) In the tropical savannas the majority of people live in small coastal towns and communities. An increase in severe weather events such as cyclones, storm surges and flooding of rivers will obviously have a large impact on people living in this region.
If sea-levels rise significantly, the vast freshwater floodplains of northern Australia will be subject to significant change due to saltwater intrusion.
With climate change, parts of Australia may become more favourable for mosquitoes, thereby increasing the potential for mosquito-borne disease outbreaks (e.g. Dengue fever and Ross River virus)
In the tropical savannas there are finely balanced relationships between the flora and fauna that make up communities. Climate change and an increase in carbon dioxide will change this balance, and is likely to change the current distribution of plants and animals. Koalas are territorial and mark and defend the trees in which they live. Male koalas compete for mates