• Skip to primary navigation
  • Skip to main content
  • Skip to primary sidebar
  • Skip to footer
Jennifer Marohasy

Jennifer Marohasy

a forum for the discussion of issues concerning the natural environment

  • Home
  • About
  • Publications
  • Speaker
  • Blog
  • Temperatures
  • Coral Reefs
  • Contact
  • Subscribe

neil

Conservation Values in the Daintree

November 7, 2007 By neil

Daintree Rainforest.jpg

The Australian Rainforest Foundation (ARF) has recently distributed an explanation of its position and the work it has been tasked to do, particularly where it applies to the rainforest areas between the Daintree River and Cape Tribulation.

Much of what it describes as ‘always controversial’ is all too frequently rationalised against a series of subdivisions that were registered by the Queensland Government in the early eighties. What is rarely offered, by way of qualification, is that this decision was made in favour of competing interests that sought substantive removal of rainforest for sugar-cane cropping, on lands that had been held under freehold title for much of the preceding century. With a full disclosure of historical fact, the decision to oppose the expansion of sugar-cane was remarkably enlightened in its protection of an extraordinary rainforest habitat.

Not that the significant number of residential properties, with existing-use-rights, was without concern; indeed, if all twelve-hundred properties were developed to capacity, there would have been significant habitat losses. In recognition of these concerns, $23million was allocated in the mid-nineties for voluntary acquisition and conversion to National Park.

For resolution of outstanding concerns at the conclusion of this program, the Daintree Futures Study was undertaken and submitted to the Wet Tropics Ministerial Council. Three spheres of government were to sign a Memorandum Of Agreement to endorse its recommendations, including the package of financial contributions from Commonwealth and Queensland Governments and the Douglas Shire Council.

The Queensland Government was to allocate $16.1million to Ergon to supply grid electricity, but the Queensland Minister for Mines and Energy effectively circumvented the requirement by authorising an amended policy that prohibited the supply of electricity using a network and excised the Daintree region from Ergon’s distribution area.

The Douglas Shire Council was to collect an extra $1million from the Daintree River ferry over five years, but its specific purpose tourism/conservation levy was ultimately ruled illegal by the Queensland Supreme Court.

The Commonwealth government was to underwrite a $10million Daintree Land Trust, however, the Ministerial Council rather agreed to fund $300,000 each from Commonwealth and Queensland governments and an additional $400,000 outstanding from the previous $23million, to establish a $1million seeding grant for the ARF, as described in the above-mentioned explanation.

Tens of millions of dollars have been poured into ‘Daintree Conservation’ over the years, with changing names on title, covenants, property boundaries being reconfigured and development rights expropriated. There is little debate that this area of outstanding conservation value should be protected and to the greatest possible extent. To this end, its resident community has been regulated into a conservation land-use function, but what it requires, more than anything else, is an appropriate economy and one that is not contingent upon development. So far, none of the ‘rescue programs’ have managed to provide this requirement.

As a relatively recent land-holder, the ARF is grappling with the same conservation challenges as all landholders within the Daintree; its application for compensation for loss of development rights is an expression of an economic lack of choice.

Filed Under: Uncategorized Tagged With: Economics

Northern Leaf-tailed Geckos

November 2, 2007 By neil

NLTG.jpg

Driving to Cape Tribulation two nights ago, I was hit with the unmistakable stench of what the Guugu Yimithirr indigenous people (just up the coast) call yumu; a scummy residue of coral spawning in the shallows of the coral sea. On this same night, I located two Northern Leaf-tailed Geckos on the sides of nearby trees, at the same height off the ground and on the same side, most proximal to the direction of the onshore winds. I wondered if these two events were related.

It took me eight years of almost nightly searching to find my first Northern Leaf-tailed Gecko Saltuarius cornutus. Endemic to the rainforests of the Wet Tropics and almost invisible in their marbled discretion, they are Australia’s largest gecko.

The attached image shows the difference between the original tail (left) and the regenerated tail (middle). The camouflaged, lidless eye (right) shows a slit pupil which allows much more light when fully dilated and the very reflective tapetum requires that the gecko face downward to avoid detection from owls. In the event of an attack, the tail and hind legs and the inverted position increase the likelihood that the kill-shot will be directed at the strategically deceptive ‘recoverable’ end.

In relation to sea-borne scum, I was impressed by the size of a vast rubbish dump floating in the Pacific Ocean, which covers an area bigger than Australia, as reported in ABC News.

Filed Under: Uncategorized Tagged With: Plants and Animals

Giant White-lipped Tree Frog

November 1, 2007 By neil

L.infrafrenata.jpg

In the centre of the Daintree rainforest, Giant White-lipped Tree Frogs Litoria infrafrenata ordinarily call for mates at the beginning of September, but much cooler temperatures persisting until very recently, have delayed the unmistakable clatter of competing males.

They are world’s largest tree frog and have been known to grow to 139mm. Their colour is variable, from beige-brown during the day to bright-green at night. They are conspicuous with a white stripe around the lower jaw continuing through to the shoulder, as well as white stripes (salmon pink in breeding males) on the trailing edges of the lower legs.

In an attempt to mimic the sustained adhesiveness that tree-frogs’ toe-pads provide, a group of researchers in India have created a form of sticky coating that is both strong and reusable. More details can be found in this Scientific American article.

Filed Under: Frogs, Nature Photographs Tagged With: Plants and Animals

Boyd’s Forest Dragons

October 29, 2007 By neil

Boyd's.jpg

Boyd’s Forest Dragons Hypsilurus boydii are endemic to the rainforests of Australia’s Wet Tropics. They can reach a total length of 54 cm and may live to thirty years. They prefer the vertical surface of a tree-trunk, particularly one with a slightly larger diameter than their own girth, to hide behind upon the approach of any potential threat. Occupying a territorial distribution of one dragon per 500 square metres of forest, they protect themselves from Amethystine Pythons in another peculiar way.

They distinguish themselves from all other rainforest reptiles by maintaining a consistently colder body temperature. This is achieved by avoiding exposure to direct sunlight in an unusually precautionary thermo-regulation. Ищите дешевых проституток поблизости? Найдите их на сайте: https://sex-tumen.prostitutki72.com Имеются дешевые проститутки от 500 рублей!. By ensuring that their body temperature is always precisely the same as the temperature of the vegetation upon which they sleep, they remain thermally inconspicuous to the Amethystine Python with its formidable thermo-detection capabilities.

They do, however, leave a scent trail, but this unavoidable legacy is offset by false trails and the selection of a sleeping position that replicates that of the Spectacled Monarch as described previously. Juvenile dragons sleep at the very ends of flimsy branches on under-storey plants so that their instinctive sensitivity to vibration wakes them from sleep upon the approach of a snake. Adults rely more upon the sensitivity of the tip of their tail, which is thermally indistinguishable from the tree, but some lose portions of tail which do not regenerate with this species.

Boiga Boyds.jpg

Filed Under: Nature Photographs Tagged With: Plants and Animals

Amethystine Pythons and Spectacled Monarchs

October 28, 2007 By neil

Amethystine2.jpg

Pythons (particularly the Amethystine Morelia amethistina) are well equipped with facial heat-receptor pits. They hunt nocturnally and are able to detect minute temperature changes from direct absorption of optical radiation through the thin pit organ membrane.

Birds are conspicuously exothermic targets at night. They roost strategically along vegetation that requires thoroughfare of heat-seeking snakes to ensure forewarning through vibration.

Nesting, however, is another matter. Some bird species, including the Spectacled Monarch Monarcha trivirgatus build nests on isolated under-storey shrubs with a cup-design that conceals the greatest portion of the heat signature. Nesting is also timed to coincide with high ambient temperatures to lessen the contrast.

The challenge of successful nesting is also dependent upon the onslaught of the heavy wet season. A couple of clients last year informed me that their indigenous guide at Mossman Gorge had forecast the beginning of the wet in three weeks time, as the birds had just started nesting. I agreed that the nesting was only one night old, but as it turned out, the wet arrived that night and the birds had an unsuccessful nesting.

Specmon.jpg

Filed Under: Uncategorized Tagged With: Plants and Animals

Buff-breasted Paradise Kingfisher

October 26, 2007 By neil

bbpkf.jpg

Any day now, the rainforests of the Daintree will resound of the arrival of the Buff-breasted Paradise Kingfisher Tanysiptera sylvia.

They are very punctual, arriving in the last week of October, first week of November, each year. The males industriously excavate upwardly climbing tunnels into terrestrial termite mounds and upon breaching the internal cavity, rely upon the resident colony of termites to congeal the inner wall of the would-be incubating chamber. The female kingfisher will reject the proposal unless the termites have played their part.

As we walk past these mounds over the summer months, kingfisher chicks can be heard inside calling for food. When they ultimately fledge, the parent birds return to PNG, leaving the abandoned juveniles in a state of distress. For about three weeks they hang around the nesting site, before heading off to New Guinea on their own; having never been before.

Filed Under: Uncategorized Tagged With: Plants and Animals

  • « Go to Previous Page
  • Go to page 1
  • Interim pages omitted …
  • Go to page 9
  • Go to page 10
  • Go to page 11
  • Go to page 12
  • Go to page 13
  • Interim pages omitted …
  • Go to page 18
  • Go to Next Page »

Primary Sidebar

Recent Comments

  • Ian Thomson on Vax-ed as Sick as Unvax-ed, Amongst My Friends
  • Dave Ross on Vax-ed as Sick as Unvax-ed, Amongst My Friends
  • Dave Ross on Vax-ed as Sick as Unvax-ed, Amongst My Friends
  • Alex on Incarceration Nation: Frightened of Ivermectin, and Dihydrogen monoxide
  • Wilhelm Grimm III on Incarceration Nation: Frightened of Ivermectin, and Dihydrogen monoxide

Subscribe For News Updates

  • This field is for validation purposes and should be left unchanged.

November 2025
M T W T F S S
 12
3456789
10111213141516
17181920212223
24252627282930
« Jan    

Archives

Footer

About Me

Jennifer Marohasy Jennifer Marohasy BSc PhD has worked in industry and government. She is currently researching a novel technique for long-range weather forecasting funded by the B. Macfie Family Foundation. Read more

Subscribe For News Updates

Subscribe Me

Contact Me

To get in touch with Jennifer call 0418873222 or international call +61418873222.

Email: jennifermarohasy at gmail.com

Connect With Me

  • Facebook
  • LinkedIn
  • RSS
  • Twitter
  • YouTube

Copyright © 2014 - 2018 Jennifer Marohasy. All rights reserved. | Legal

Website by 46digital