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TASMANIAN FIELD NATURALISTS CLUB INC.
established 1904.
BULLETIN
http://www.tased.edu.au/tasonline/tasfield.html
Editor : Don Hird. (email dgh@dodo.com.au )
Bulletin No. 311 (quarterly) July 2003
The Tasmanian Field Naturalists Club encourages the
study of natural history and supports conservation. We issue our
journal The Tasmanian Naturalist annually in October. People with
a range of ages, background and knowledge are welcome as members.
Contact Genevieve Gates (6227 8638) for further information
or write to GPO Box 68, Hobart, 7001.
Programme
General Meetings start at 7.45 p.m. on the first Thursday
of the month, in the Life Science Building at the University of Tasmania.
Outings are usually held the following weekend, meeting outside the to
the Tasmanian Museum and Art Gallery entrance in Macquarie Street.
Bring lunch and all?weather outdoor gear.
If you are planning to attend an outing but have not
been to the prior meeting, phone to check as to the timing of the excursion
(with Genevieve Gates; 62 278 638 or Don Hird; 62 289 702). Unforeseen
changes sometimes occur.
Thurs. 7 August 7.45p.m.: Menna Jones will speak
on the biology of Tasmanian Devils.
Sat. 9 August 9.00a.m. Depart from the Museum for
Hospital Creek, a reserve near Kellevie which is one of the few known habitats
for two endemic plants.
Thurs. 4 September 7.45p.m.: Karen Richards will speak
on the Habits and Habitats of the Humble Hydrobiid, a family of freshwater
molluscs.
Sat. 6 September 7.00p.m. An evening excursion is
planned to the Waterworks Reserve with a view to finding nocturnal fauna
including mammals, birds and invertebrates; possibly also luminous fungi.
Thurs. 2 October 7.45p.m.: Graham Edgar, a local marine
biologist and author will talk abm` recent
experience on the Conservation, Fisheries and Management of the Galapagos
Marine Reserve
Sun. 5 Oct. Excurs. 9.00 a.m.: We will visit
the Coal River Gorge, primarily dry sclerophyll habitat north of Hobart.
Thurs. 6 November 7.45p.m.: Randy Rose from Univ. Tasmania
Zoology will speak on the biology of the Tasmanian Bettong.
November Excursion We will visit the Esperance
River near Dover. Detail to follow.
Message from the Treasurer
I don't normally post out the receipts for subs but
if anyone wants them please let me know, or see me at a meeting. There
are a few subs that haven't been paid for 2003 so if you aren't sure if
you have paid either email me at Anna.McEldowney@utas.edu.au ,give me a
ring on 62396326 or ask at a meeting. It is $25 for single membership,
$30 for family membership and $20 Concession for seniors and students.
If a large red cross appears on your Bulletin envelope,
your 2003 Subs are overdue. If you have also not paid your 2002 Subs.,
you will soon be deleted from our mailing list.
Excursion Reports
Bird List; Lower Track to Pelverata Falls 6 April
2003
Weather; fine, sunny, light north wind and a little
cloud This list was omitted from the April Bulletin
| Black Currawong |
Strepera fuliginosa |
Grey Shrike-thrush |
Colluricincla harmonica |
| Spotted Pardalote |
Pardalotus punctatus |
Yellow Throated Honeyeater |
Lichenostomus flavicollis |
| Grey Fantail |
Rhipidura fuliginosa |
Black Headed Honeyeater |
Melithreptus affinus |
| Superb Fairy-wren |
Malurus cyaneus |
Strong Billed Honeyeater |
Melithreptus validirostris |
| Forest Raven |
Corvus tasmanicus |
Golden Whistler |
Pachycephala pectoralis |
| Tasmanian Thornbill |
Acanthiza ewingii |
Crescent Honeyeater |
Phylidonyris pyrrhoptera |
| Tasmanian Scrubwren |
Sericornis humilis |
Eastern Spinebill |
Acanthorhynchus tenuirostris |
| Scarlet Robin |
Petroica multicolor |
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John Reid
Report on the T.F.N.C. May excursion for 2003:
"The Pond of Death" starring John Gooderham with a
supporting cast of 10 members from the T.F.N.C
Its harmless appearance belied the sinister name,
as it was nothing more than a long narrow culvert in a pasture across the
road from the Richmond football oval rather than a round deep pond. First
find of the day was Coprinus comatus, growing under the pine trees
near the oval. This is a fungus of noteworthy significance as it is one
of only three true Coprinus species left after DNA studies have hashed
and rearranged the taxonomy. The central strand of tissue, which is a key
feature of this genus, was easily seen running down the inside of the stipe.
As all the members had gathered we moved onto the
pond. We came very well prepared with dissecting microscopes, dishes, nets,
containers, spoons and field guides, and as John did the wading we didn’t
even have to don our wetsuits. Pond ecology is a bit more complicated than
one might expect. Such a shallow stretch of water as this is subject to
temperature and pH changes, desiccation and even the aspect and morphology
can affect the biota living within its enclaves as well as the many micro-environments
present .For example, many bugs live on the surface of the water, others
live around the plants just below the water surface, others are found in
the shallower marginal waters, and others burrow in or move over the sediments
on the bottom. These environments each host a specific fauna which all
have varying problems to overcome and which have adapted to enable them
to take advantage of each ecological niche.
Ah, John has emerged out of the pond and deposited
the booty in one of the flat-bottomed white dishes. An array of small crustaceans
is soon zipping around much to the delight of the observers. The most obvious
were the many tadpoles but as we got our eye in we could see other remarkable
individuals. These included freshwater mites of a lovely red colour (and
that is as far as we need go with their taxonomy says John!), water fleas
(Order Cladocera), copepods (Copepoda), clam shrimps (Conchostraca), seed
shrimps (Ostracoda), and find of the day - a huge tadpole shrimp (Notostraca)
that goes by the name of Lepidurus apus viridus. This was about
3.5cm in length and the book says it has 60 legs but we didn’t count them
.We also found Dytiscid beetle larvae and adults, Physid snails, chironomid
larvae, caddis fly larvae, soldier fly larvae, water boatmen, and an unknown
egg sac. Some of the adaptations freshwater bugs have to avoid desiccation
are that they produce eggs with hard cases or they keep the eggs within
their body and when they die the body hull protects the eggs until conditions
are favourable for hatching.
A quick lap around the pond found me a Marasmius
oreades, which is a Fungimap species as is the Coprinus - so
quite a good total for a freshwater ecology excursion.
Many thanks to John, for a very informative and fascinating
few hours, and how lucky we were to have one of the authors of the “The
Water Bug Book” leading this excursion.
David Ratkowsky
Seaford Revisited - T.F.N.C. Excursion, 7 June 2003
“Seaford”, the property belonging to Col and Sue Dyke,
is on the East Coast near Little Swanport. Sue and Col are oyster farmers
and the Club had visited the oyster beds on a previous occasion to look
at the eradication of rice grass. At the end of that excursion we were
invited back to have a look at anything we were interested in on the property.
As Sue had recently found some unusual mammal burrows, Don was very keen
to inspect these and as the East Coast had seen a fair bit of rain, Gen
and David were hoping to add to the fungi list from their first visit to
this coastal heath and dry sclerophyll habitat. This is also good bird
watching forest so John and Maggie had their binoculars ready. After a
welcoming cup of tea with Sue and Col during which Col filled us in on
his latest environmental efforts concerning water quality, we set off to
find the burrows. The weather was windy and fine, a vast improvement on
the miserable day we had left in Hobart and everybody (as usual) enjoyed
the outing.
Fungi List (Seaford 7 June 2003)
| Agaricus sp. |
Agaricus sp., pink and yellow with almond essence
odour |
Bovista sp. |
Calocera sp. |
| Clitocybe sp., grey |
Collybia sp. |
Coltricia cinnamomea |
Cortinarius sp., downy |
| *Coprinus comatus |
Cortinarius sp. lilac |
Descolea recedens |
Entoloma sp., grey cap, gills and stipe |
| Entoloma viridomarginatum |
Galerina sp. |
Geastrum sp. |
Hebeloma sp. |
| Hygrocybe aff. coccinea |
Hygrocybe astatogala |
Hypholoma fasciculare |
Inocybe sp. |
| Laccaria sp. |
Lactarius eucalypti |
Lepiota sp. |
Lepiota sp., “sooty” |
| Leucocoprinus sp. |
Macrolepiota konradii |
Marasmius sp., horsehair |
Mycena “bleach sulcate” |
| Mycena austrofilopes |
Mycena sanguinolenta |
Mycena sp., yellowy brown with dark brown centre |
*Omphalina chromacea |
| *Omphalotus nidiformis |
Panaeolus sp. |
Pholiota squarrosipes |
Pisolithus sp. |
| *Poronia ericii, on wallaby dung |
Psathyrella asperospora |
Psilocybe “bruni-islander” |
Resupinatus applicatus |
| Rhodocollybia butyracea |
Rhodocybe sp., small grey |
Rickenella fibula |
Russula clelandii |
| Russula neerimea |
*Stereum hirsutum |
Stereum illudens |
Stropharia semiglobata |
| Trametes versicolor |
*Tremella mesenterica |
Amanita sp., with pink partial veil remnants |
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Note: *Indicates a FUNGIMAP species
David Ratkowsky
Seaford Bird List (Maggie Cashion-Bailes)
| White-bellied Sea Eagle |
Haliaetus leucagaster |
Wedge-tailed Eagle (3) |
Aquila audax |
| Green Rosella |
Platycercus caledonicus |
Eastern Rosella (25) |
Platycercus eximius |
| Black Currawong |
Strepera fuliginosa |
Grey Shrike-thrush |
Colluricincla harmonica |
| Grey Fantail |
Rhipidura fuliginosa |
Yellow Throated Honeyeater |
Lichenostomus flavicollis |
| Yellow Wattlebird |
Anthochaera paradoxa |
Noisy Miner |
Manorina melanocephala |
| Superb Fairy-wren |
Malurus cyaneus |
Australian Magpie |
Gymnorhina tibicen |
| Brown Thornbill |
Acanthiza pusilla |
Eastern Spinebill |
Acanthorhynchus tenuirostris |
| Scarlet Robin |
Petroica multicolor |
(Male and Female) |
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| Golden Whistler |
Pachycephala pectoralis |
(Male and Female) |
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| Cattle Egret (5) |
Ardeola ibis (Triabunna) |
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Bedlam Walls, Sunday 6th July, 2003
15 of us set off to the end of Geilston Bay Road on
Sunday 6th July, where it looked like Grand Central with a large group
of ? scouts. We slowly made h ( around the foreshore
track to the eroded aboriginal midden site, Genevieve and David found the
inevitable fungi, Quag discovered prickly acacias and Don - possible bettong
shelters in a sagg tussock. We waited for the scout party to move on, allowing
us to descend to the caves on the cliff face. The cave site is quite spectacular,
reached by a narrow, winding boardwalk, with views across the river to
Pasminco. Unfortunately we missed the whale sighted there about an hour
or so later! Following the hillside around to Shag Bay we passed a stand
of E. risdonii. While lunching at Shag Bay we found a large area
of recently disturbed/ dug ground exposing hundreds of ? dog bones, skulls
and body bones even hair. This area is covered in luxuriant weed growth
and the bones extend into the water! David Leaman informs us it was a blood
and bone factory in the 1880 - 90s.
Birds seen on the walk included - forest ravens, black
headed honey-eaters and a white-faced heron.
I found a well camouflaged spider on a tree trunk
- 'Stephanopis scabra' - only spotted because it moved. They have
a knack of impregnating their body with bits of bark to complete their
camouflage. In Shag Bay itself there seemed to be a big fish, possibly
a trout, chasing schools of tiny fish around the shallows. Those who stayed
on saw a seal, but not the whale reported near the Tasman Bridge that day
! An interesting and enjoyable trip close to the city.
Amanda Thomson
A couple of interesting plant sightings at
Bedlam Walls - one was a small member of the Epacridaceae, Lissanthe
strigosa or Peach Berry growing on the northern side of Shag Bay and
another was Spyridium eriocephalum which is apparently quite rare
but local at Risdon. It was growing on the southern side of Shag Bay in
a very dry exposed position. It has small bright green shiny leaves and
compact whitish flower heads about 5mm across. Anna McEldowney
Fungi List
| Arrhenia acerosa, on earth |
Ascomycete sp. small white disc |
Bisporella citrina |
Bisporella sulphurina |
| Calocera sp. |
Clitocybe semiocculta |
Coltricia cinnamomea |
Coprinus sp. |
| Cortinarius sp., brown with white bloom to
stipe |
Cyphella sp. |
Dacrymyces sp., orange jelly, spathulate |
Dermocybe sp. yellowy brown |
| Discinella terrestris |
Fistulinella mollis |
Galerina sp. |
Galerina sp., like “patagonica “ but on soil |
| Galerina/Tubaria sp. Grey corticoid |
Laccaria sp. |
Mycena “bleach sulcate” |
Mycena albidocapillaris |
| *Mycena nargan |
*Oudemansiella radicata |
Pluteus “yellow” |
Psilocybe sp. |
| Pycnoporus coccineus |
Resupinatus applicatus, on underside of eucalypt
bark |
Scleroderma sp. |
Steccerhinum sp. |
| Stereum “drab” on sheoak |
*Stereum hirsutum, on sheoak |
Stereum illudens |
Stropharia semiglobata |
| Trametes versicolor |
*Volvariella speciosa, in weeds |
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Note: *Indicates a FUNGIMAP species
Foxes in Tasmania (??) – conserve “threatened” prey
species anyway !
Amidst the clamour of this largely tabloid debate
came expressions of concern about potential mammalian prey species for
the Red Fox in Tasmania; primarily the Eastern Bettong and the Barred Bandicoot.
Both species were widespread and common on mainland Australia prior to
the introduction of foxes and their demise there is often attributed to
fox predation.
In Tasmania neither the Eastern Bettong nor the Barred
Bandicoot has adequate reserved habitat. The habitats of both are
subject to ongoing threats from landclearance and 1080. These issues
are poorly recognised officially but, even without foxes, habitat loss
continues to adversely impact on populations of each species.
Don Hird
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