section 1: our local flying-foxes section 2: forest rely on foxes that fly section 3: natural...
TRANSCRIPT
Section 1: Our local flying-foxes
Section 2: Forest rely on foxes that fly
Section 3: Natural threats
Section 4: Man-made threats
Flying-foxes and their environment
Southern Queensland Flying-fox Education Kit
Activity 9.1A
Southern Queensland Flying-fox Education Kit :: Activity 9.1A
SECTION 1: Our local flying-foxes
2
Southern Queensland Flying-fox Education Kit :: Activity 9.1A
Mega-bats in Australia
3
“Mega-bats” describes a family of bats that are frugivorous/nectarivorous.
There are nine different species of mega-bat living in mainland Australia.
Five of these can be found in southern Queensland.
Three of these mega-bats are flying-foxes.
Southern Queensland Flying-fox Education Kit :: Activity 9.1A
Black flying fox (Pteropus alecto)
This is the largest of the Australian flying-foxes. They are common throughout northern coastal region. They are generally black all over and may have with a reddish collar.
4
Southern Queensland Flying-fox Education Kit :: Activity 9.1A
Grey-headed flying fox (Pteropus poliocephalus)
This species is classified as a vulnerable species across Australia. Its reddish orange collar, light grey head and fur down its legs distinguishes it from other flying foxes.
5
Southern Queensland Flying-fox Education Kit :: Activity 9.1A
Little red flying foxes (Pteropus scaptulatus)
These smaller flying foxes clump together in large groups when roosting. They are a nomadic species that can be found across most of Australia.
6
Southern Queensland Flying-fox Education Kit :: Activity 9.1A
End of Section 1
7
BACK TO BEGINNING
NEXT SECTION
Southern Queensland Flying-fox Education Kit :: Activity 9.1A
SECTION 2: Forests rely on foxes that flyThe seeds of many species of rainforest tree will only germinate if moved some distance from the parent tree. Due to their ability to carry larger fruit and move it over considerable distances, flying-foxes are responsible for maintaining genetic diversity amongst remnant patches of rainforest.
8
Southern Queensland Flying-fox Education Kit :: Activity 9.1A
Flying-fox habitat
9
Flying-foxes roost in trees in large groups. These groups are called camps or colonies.
Camps can be found in remote patches of forest.
More commonly camps are located in small patches or bush land amongst a sea of urban development.
Southern Queensland Flying-fox Education Kit :: Activity 9.1A
Flying-fox habitat
10
Flying-foxes feed on over 100 different species of native trees and shrubs.
They will travel great distances to find food – usually within a 20 km radius. Commutes of over 400 km have been recorded.
Southern Queensland Flying-fox Education Kit :: Activity 9.1A
Seed dispersal and pollination
11
Seeds are dispersed in three ways:fruit is dropped during
flight,large seeds are dropped
on-site or away from the parent tree, and
small seeds are excreted elsewhere.
Pollen is collected on the fur of flying-foxes while they feed on the nectar of flowers.
Through their travels, flying foxes can pollinate flowers many kilometres apart.
Southern Queensland Flying-fox Education Kit :: Activity 9.1A
End of Section 2
12
BACK TO BEGINNING
NEXT SECTION
Southern Queensland Flying-fox Education Kit :: Activity 9.1A
SECTION 3: Natural threats
13
Southern Queensland Flying-fox Education Kit :: Activity 9.1A
Stress
14
Significant changes in the natural world can cause stress on a species.Long term decline in numbers
(lack of food).Mass deaths from heat stress
over increasingly hotter summers.
Stressed flying-foxes can become sick and we see an increase occurrence of diseases like Hendra virus.
Southern Queensland Flying-fox Education Kit :: Activity 9.1A
Climate change
15
Scientists agree that our climate is changing causing:hotter summers,increased frequency of
major storm events, andchanges in flowering
patterns.Species are moving into
new territories and placing pressure on existing populations.
Southern Queensland Flying-fox Education Kit :: Activity 9.1A
Droughts
16
Drought impacts the flowering and fruiting patterns of native trees.
Babies can fall victim to heat stress.
Keeping hydrated is important for survival.
When the drought breaks, camps can swell beyond normal capacity in areas where trees are flowering.
Southern Queensland Flying-fox Education Kit :: Activity 9.1A
Bushfire
17
Bushfires can wipe-out large tracts of natural food sources for up to 12-24 months.
Flying-foxes may have to move to new camps or supplement their diet with backyard fruit.
Orchards should be netted correctly to protect the fruit from both flying-foxes and birds.
Southern Queensland Flying-fox Education Kit :: Activity 9.1A
Floods
18
Extreme flooding can damage roosting trees.
Trees make use of rain and may flower and fruit at different times, or have extended flowering times.
Different flowering and fruiting will change population dynamics in flying-fox camps as they follow the food.
Southern Queensland Flying-fox Education Kit :: Activity 9.1A
Cyclones
19
Cyclones can destroy roosting trees and food sources.
Flying-foxes need to move away from the affected zone putting pressure on other camps and competition for food.
Human interactions become tense.
Southern Queensland Flying-fox Education Kit :: Activity 9.1A
Reduce the stress
20
We can be more sustainable to reduce our contribution to climate change.
We can learn more about the importance of flying- foxes to our forests.
We can help others learn more about flying-foxes and how we can live together.
Southern Queensland Flying-fox Education Kit :: Activity 9.1A
End of Section 3
21
BACK TO BEGINNING
NEXT SECTION
Southern Queensland Flying-fox Education Kit :: Activity 9.1A
SECTION 4: Man-made threats
22
Southern Queensland Flying-fox Education Kit :: Activity 9.1A
Stress
23
When we get stressed we become sick, tired and grumpy.
When flying-foxes get stressed they too get sick, tired and they may die as a result.
Southern Queensland Flying-fox Education Kit :: Activity 9.1A
Urbanisation
24
Loss of roost habitat and our affinity to living near natural areas, has lead to flying-foxes living closer to humans.
This causes stress to both the flying-foxes and those living near them.
Southern Queensland Flying-fox Education Kit :: Activity 9.1A
Fruit trees
25
When there is a lack of native food, flying-foxes will revert to backyard fruit trees and orchards.
Incorrectly netted fruit trees can cause many inhumane deaths to both flying-foxes and birds.
Nets need to be pulled tight over a frame. This methods protects both the flying-foxes and the fruit.
Incorrect netting
Correct netting
Southern Queensland Flying-fox Education Kit :: Activity 9.1A
Pest trees
26
Flying-fox caught in a Cocos Palm. His toes were trapped in the narrowing vertical groove. Two toes had to be amputated. (Dave Pinson)
Exotic trees like the Cocos/Queen Palm cause a lot of damage to flying-foxes. They get trapped and die.The large, fibrous seeds
can damage teeth and the whole mouth.
Seeds are spread and once nice garden species turn into invasive bushland weeds.
Southern Queensland Flying-fox Education Kit :: Activity 9.1A
Powerlines and Electrocution
27
Flying-foxes often think that electrical wires are a thin branch. Many species fall victim to touching the two wires.
This can cause electrical shorts and they have to be removed.
An injured or orphaned bat can attract others to the same fate.
Photo: Toby Hudson
Southern Queensland Flying-fox Education Kit :: Activity 9.1A
Barbed wire
28
Flying-foxes don’t always see barbed wire at night and get caught.
Their fine wing membrane gets ripped on the barbs and their feet get caught.
They cause more damage to themselves while trying to get free.
Southern Queensland Flying-fox Education Kit :: Activity 9.1A
Reduce the stress
29
We can reduce the man-made impacts on flying-foxes.
We can learn more about the importance of flying-foxes to our forests.
We can help others learn more about flying-foxes and how we can live together.
Southern Queensland Flying-fox Education Kit :: Activity 9.1A
End of Section 4
30
BACK TO BEGINNING