Sydney Naturally

 

 

HomeFAQContact  

 

Pictorial look at the Eloura Bushland!



 


                                   Bull Ant                               

About The insects of Eloura Bushland

 

Insects play an important role in our bushland.  98% of insects can be considered beneficial.

 

One of the most important roles insects play in the natural world is the pollination of flower plants.  Over time, the evolution of flower plants and the related insects proceeded in parallel. As a result, various tools for collecting and transporting pollen have been developed, such as ventral brushes, pollen-baskets on legs or tufts of hair on other parts of the body. Some species, for instance, have unusually long tongues which help them reach the bottom of elongated flower tubes in search of nectar. Some insects pollinate flowers blooming in the daytime while others prefer flowers that open at twilight. The most important pollinators of flower plants are hymenopterans, especially wild bees, as well as lepidopterans, dipterans and coleopterans.

Another group of insects which plays a crucial role in different types of forest environment is ants (Formicidae). Large mound ants belonging to the Formica genus act as ”orderlies” by regulating the number of other insects. In the case of the mass appearance of Lepidoptera or Diptera caterpillars feeding on plants, ants switch to these species thereby significantly reducing their number. By building their nests, ants improve the quality of the soil. Numerous chambers and corridors in the underground part of the nest have a beneficial impact on the air and water regime in the soil.

Insects actively accelerate the circulation of the organic matter in the environment. The larvae of many Diptera species (e.g. bluebottle flies Caliphora and flesh-flies Sarcophaga) feed on dead plants and animals as well as on animal dung. This significant contribution leads to a faster decomposition. Carrion is a source of nourishment for numerous beetle species (e.g. burying beetles (Necrophorus) and carrion beetles Silpha). Because eggs are deposited in the carrion, the larvae feed on the animal remains. The dor beetles (Geotrupes) remove immense quantities of dung from the environment. They build deep burrows ending with chambers under an accumulation of dung where females deposit their eggs. The beetles then fill the chambers with lumps of dung providing food reserves for the developing larvae.

This Bull ant was working hard to take this morsel home to his nest.  Here he is seen moving across a concrete pathway.

  

A Meadow Argus Butterfly and a Blue Triangle Butterfly

   

A yet to be identified moth and a Blue Banded Bee (native to Australia).

 

A common honey bee works the Banksia and a Bull ant guards the nest.

A regular visitor to Sydney gardens is the Common Blue-banded Bee.

It stands out because of the blue bands across its black abdomen

and because of its darting, hovering flight pattern. It was

thought that these bees only visited blue and purple flowers.

This is not true, but they do seem to like lavender and are attracted

to blue objects, including clothing. The Common Blue-banded Bee

builds a solitary nest, but often close to one another. It prefers

soft sandstone to burrow in, and areas of this type of rock can become

riddled with bee tunnels. It also likes mud-brick houses

and often burrows into the mortar in old buildings.

Cells at the end of the tunnel contain an egg with a pollen/nectar

mixture for the emerging larva.

 

 

LINKS TO OTHER PHOTO PAGES


 Sydney Naturally Home

 Sydney City

 Sydney Harbour

 Sydney's Northern Beaches

 Map of Sydney

 Taronga Zoo Animals

 Insects of the Sydney Basin

 Butterflies of the Sydney Basin

 The Eloura BushLand

 Lisgar Gardens - Hidden Secrets

 Hornsby-Sydney's North Shore

 Cumberland Forest

 Snowy Mountain Lakes

 Water & Water Effects

 Photography 101 - Tips & Tricks


A picture is the expression of an impression. If the beautiful were not in us, how would we ever recognize it?

 

Ernst Haas

Photographer (1921-1986)

 


   

    More Photos of Eloura Bushland

 

    Eloura Page 1 (General)

    Eloura Page 2 (Fungi)

    Eloura Page 3 (Wildflowers)

    Eloura Page 4 (Trees)

    Eloura Page 5 (Birds)

    Eloura Page 6 (Insects)


Email info@sydneynaturally.com.au


Photos in 2005

 

 

One of the many Orb Spiders to be found in Australia.

This one is a NSW female St Andrew's Cross Spider Argiope aethera.
 

 

Another Common Orb Spider you will

find around Sydney is the Nephila maculata (this one is also female).
 

 

In the Autumn (Fall) of 2005, it seems that spiders have taken over our

gardens. This is typical of the sight that will greet you as you walk through the bush land.  Hundreds of huge webs line the sides of tracks and sometimes even over the tracks themselves. Most people have experienced running into a web at least once in their lives!