NEWS FROM THE UNDERSTOREY The Understorey Network promotes the protection of existing native vegetation and the use of local native understorey in vegetation,through field days and workshops,growing of plants from seed and the maintenance of a plants database. Groups and individuals are assisted with expertise sharing through a support network. What you can do to support the network is to fence or plant understorey on your land,grow plants for yourself or others,or collect seed etc. . The understorey is likely to be made up of shrubs,tree seedlings,low trees,grasses,other herbs,vines,ferns and mosses. a hectare of natural woodland may contain 3-4 species of tree but perhaps in excess of 30 understorey species. serious tree decline is widely publicised,while understorey species are disappearing at an even faster rate yet is often overlooked. Understorey provides shelter for young livestock,is vital to beekeepers,improves soil fertility,makes a more pleasant environment,attracts small song birds,assists natural pest control,providesemergency feed for stock,stabilises soil,provides a fuel source. Important as the understorey is,if improperly managed it can be a nuisance and reduce rural incomes. WHAT YOU CAN DO: Determine conservation values BEFORE any land clearing or construction commences on your property. Control weeds,rabbits & other vermin. Protect Bushland for future generations by writing a: CONSERVATION COVENANT on the land's title. Encourage natural regeneration. Remove weeds manually,reduce the use of herbicides. Fence off areas. Plant LOCAL understorey. Sow seeds into prepared ground on site. Do not overburn. Reduce winds. Join Tasmanian Understorey Network, or ...GREENING AUSTRALIA Animals of the Soil & Litter Layer Immediately above the topsoil is a layer of organic debris from plants & animals known as liitter. This layer is important to soil formation,and contains great numbers of tiny animals.These animals over centuries together with dead plants have broken down and created byproducts,which in turn have created a rich humus.If soil organisms,plants and litter are removed,nutrient recycling is interrupted,the soil structure is damaged and long term fertility is reduced. At least 1/5rd of Australia's Native mammal species depend directly upon this layer for food and shelter. The moist litter also provides a home and feeding space for several frog species. Ants & Other Species There are at least 110,000 species of native australian insects. Many of these need native vegetation as part of their lifecycle.Any changes to native vegetation will affect the insects.Careful choices of native plants can improve habitat for native insect species which in turn will improve the number of insect eating birds and other animals. Ants are important pest controllers for trees. Some ants live entirely in the ground layer,their role is to decompose organic matter. BUTTERFLYS & THEIR VALUABLE ROLE IN THE ECOSYSTEM The Tasmanian Hairstreak Butterfly is most colourful,being black and bright orange.Note the butterfly illustrated on this page is actually the Monarch.If anyone has an image of the Hairstreak I would like to display it here. The Hairstreak has been considered rare and endangered but not officially classified as such,sightings have increased recently, but still considered vulnerable due to loss of habitat from uncontrolled clearing of trees and the understorey. In 1984 the last known habitat was a small pocket of remnant vegetation at Port Sorell,now subdivided. The growth of rural subdivisions is the main reason for the species decline. LANDCARE - A GRASSROOTS MOVEMENT Over the past decade - the "Decade of Landcare", we have learnt a lot and achieved much,but still problems,such as SALINITY,ACID SOILS & WEEDS affect large areas of Australia. Our Native Plants & Animals are under constant threat. Water Quality is a major concern. Waste Management & Recycling has no uniformity in it's approach, with some regions ,especially Launceston,Tasmania well behind others. We must continue our efforts towards healthy ecosystems by building on the successes of Landcare. A discussion paper published December 1999 with the aim of developing a national policy framework for managing natural resources in the next 10 - 15 years A Sustainable Future For Rural Australia FROG WATCH Children are fascinated by frogs and these creatures are an excellent means of teaching children about the fragile nature of the ecosystem . Many schools around the state take their classes on field trips to observe frogs in their natural habitat,and then go back to the classroom and produce web pages such as MEANDER PRIMARY Australia has at least 180 species of native frogs - more are still being found. Many native frog species need trees as an important part of their habitat. Frogs in wetlands are an important food source for waterbirds,snakes,fishes and other animals. About 50 species are known as treefrogs. Tadpoles are herbivores,they graze on algae while adult frogs feed mainly on insects,insect larvae & other small animals. Frogs can be economically useful in helping to control pest insects. REPTILES Australia has over 650 native reptile speces,more than most other continents,they include goannas,skinks,dragon lizards,geckos & snakes. CHECK OUT THE LINKS THAT RELATE TO THIS TOPIC ON MY elaunceston site http://www.elaunceston.com/people/cleanup2000/APO3AAbout.htm MORE NEWS LATER
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