Magnetic Island walks: Nelly Bay to Arcadia and the Forts junction

The walking tracks

Magnetic Island walking track
Easy walking through the wattles

The walking track through the hills between Nelly Bay and Arcadia, with its extensions to the Sphinx Lookout and the Forts walk carpark, is longer than most and I hadn’t found an opportunity to explore it until last weekend. The weather was gorgeous and the landscape was at its best.

It isn’t possible to see all of these tracks without repeating at least one section (see map) and I walked from Arcadia to Nelly Bay, with the side trip to the Sphinx, on Saturday and from Arcadia to the Forts walk junction on Sunday.

Magnetic Island
Alma Bay from the Sphinx Lookout

The track climbs steadily from Arcadia and, after the detour to the Sphinx Lookout (which offers wonderful views over Alma Bay), swings around to the left, still climbing, until it presents another view down to the coast – unexpectedly on the right of the track rather than the left. It took me a moment to realise I was now on the northern side of the hill behind Arcadia and was looking down on Horseshoe Bay.

Magnetic Island
Horseshoe Bay from the Nelly Bay track

From that point onwards the track runs parallel to the beach far below before turning left again and quite steeply down hill to Nelly Bay. None of it is particularly hard walking, although the Nelly Bay end is a little rougher than the rest.

The section between the Forts carpark and the track junction above Arcadia is mostly smooth and quite level walking through open vegetation, as in my top photo. Anyone in search of an easy walk which will still show them the interior of the island should start at the carpark and finish at Arcadia, eliminating nearly all of the climbing; the Sphinx detour could be included in this walk.

To see as much as possible in one trip, on the other hand, I would start at the Forts junction, walk to the Sphinx, backtrack to the Nelly-Arcadia-Forts T-junction and continue on to Nelly Bay; all I would miss would be the climb up from Arcadia to the Sphinx turn-off.

Magnetic Island
Hillside with wattles, boulders and hoop pines

Wildlife

walking track
A natural carpet

The wattles were blooming as I had never seen them before, and a long-time resident of the Island agreed with me that they were exceptionally good. There are (at least) four species and they were all flowering together; fallen blossom was caught in spiderwebs and grasses, and carpeted the ground. Normally this much blossom would attract a similar abundance of nectar feeders but I didn’t see great numbers of insects or birds feeding on it and Birds In Backyards doesn’t list wattles among the best food sources for any of the nectarivores.

Nevertheless I enjoyed the company of birds throughout my walks. Raucous flights of Sulphur-crested Cockatoos and one bigger flock of galahs flew overhead; I heard Friarbirds constantly and saw them occasionally; Currawongs and raptors were occasionally sighted in the distance; and smaller birds were active in the trees. Like the friarbirds they were more often heard than seen but I saw three Sunbirds (from the Sphinx Lookout), several Leaden Flycatchers, and some honeyeaters.

flycatcher
Female Leaden Flycatcher

I didn’t see any snakes at all although one hiker I met said she had seen one or two. By far the most abundant reptiles were little skinks, sunning themselves on the track, tree trunks or boulders. I noticed two distinctly different colorations, copper-headed and copper-bodied (I think the latter is a Rainbow Skink, Carlia sp.), but there were probably more.

I only saw one larger, differently patterned lizard, another skink. Going by Wilson’s field guide, it is a Striped Skink in the genus Ctenotus – but there are 43 of them in Queensland and the one which looks most like mine, C. rosarium, is known only from the White Mountains – Aramac region, so I’m not going hazard a guess at species.

skink
Striped skink
magnetic island walks
Did I mention the wattle?

The individualist

St Andrew's Cross spider
St Andrew’s very cross?

The St Andrew’s Cross spider, Argiope keyserlingi, is very common in our gardens and it is named for its trademark, an “x” cross built into its web, this being the symbol of the Scottish patron saint. (Why? Find out here.)

This mid-sized female, however, wasn’t going to stop with an “x” but had added half of a central vertical stroke and a hint of the other half when I saw her yesterday. Her web is the same today, so that must be how she likes it. Why? No-one knows. In fact, no-one knows why spiders add any of these decorations to their webs.

The decoration, whether it’s a cross (as this ought to be), a loose squiggle (like this, created by a juvenile of the same species, or this, created by an adult of a related species) or any other shape, is called a stabilimentum. The new Whyte & Anderson Field Guide says, “proposed functions have included providing camouflage, making the web more conspicuous to prevent destruction, or attracting insects by reflecting UV light.”

Other orb-weaving spiders add different kinds of solid-looking components to their webs. Cyclosa species, for instance, construct a bar of prey debris across the centre of their web, in which they very deliberately camouflage themselves, but there is no guarantee that this behaviour is related to the Argiope species’ construction of a stabilimentum.

Not really a Green Ant

Pod-sucking bug
Looks very like an ant but isn’t

There isn’t much insect activity in the garden at this (dry, cool) time of year but when I was ambling around it last week I saw a Green Ant which was too small – only about two thirds of the size of a normal Green Ant.

That was my first thought, anyway, but a closer look revealed that it wasn’t an ant at all but a very good mimic. It is a juvenile Pod-Sucking Bug (Riptortus sp., Alydidae, Hemiptera) and in fact is the same species I described here on Green Path four years ago. That post shows older juveniles, gradually less and less like the Green Ant; this very small one turns out to be the best mimic of all, other than being too small.

This second image clearly shows its proboscis or sucking tube, tucked away beneath its body until needed.

Pod Sucking Bug
The same young Pod-Sucking Bug showing its proboscis

Ahhh… winter!

Ross Creek, Townsville
Ross Creek at Sandy Crossing on a winter’s morning

Our few days of rain last month, welcome as they were, seem to have been an aberration and we’re now enjoying a normal Townsville winter – cool nights, warm days, blue skies and humidity low enough that static electricity sparks off car door handles. Every second person you meet asks, “Isn’t this weather gorgeous?” and the answer is always some version of, “It sure is!”

I paused at Sandy Crossing quite early one morning last week for this photo. The dew was still on the grass and the birds were moving around the mangroves – Brown Honeyeaters making far more noise than their size seems to warrant, as they so often do; a Rainbow Bee-eater perching watchfully on the power line; and a little gathering of Woodswallows not far away.

White-breasted Woodswallow
White-breasted Woodswallows welcome the sun

Eco-Fiesta 2017

This year’s Eco-Fiesta, a few days ago, was much like those of previous years: a lovely day in the park with all sorts of loosely ‘greenie’ and ‘alternative’ people and organisations.  I wrote enough about the 2014 and 2013 events that I shouldn’t need to present an overview this time, so I will dive straight in to the things which caught my attention.

Wildlife Queensland had a well-staffed stall featuring a great gallery of flying fox photos. These animals get a bad press and need all the support they can get.

North Queensland Regional Plan had a very boring stall (I’m sorry, but it’s true!) which tried to engage visitors in planning for our region, the local government areas of Charters Towers, Burdekin Shire, Hinchinbrook Shire and Townsville. It’s a state government initiative and welcomes online input here. I told them about our declining rainfall. What’s your concern?

The Beekeepers  Continue reading “Eco-Fiesta 2017”

A Field Guide to Spiders of Australia

Cover of A Field Guide to Spiders of Australia

A Field Guide to Spiders of Australia

Robert Whyte and Greg Anderson

CSIRO publishing, 2017
Paperback $49.95; e-books also available.

As regular readers will be aware, I like spiders as well as butterflies and birds. I was very pleased when I heard the first hints that a new guide to them might be on the way, the more so since the author-to-be was my regular mentor in all things arachnological through his site Arachne.org and the Spiders of Australia flickr group. When he asked whether he could use a couple of my photos Continue reading “A Field Guide to Spiders of Australia”

Wallaman Falls after rain

Wallaman Falls flowing well after rain

My third visit to Wallaman Falls was a day trip with Wildlife Queensland. A full report will appear on their blog in due course but I thought I might quickly share this photo and mention my previous posts – from almost exactly one year ago and two years ago, as it happens. (This is a good time of year for camping and bushwalking, since everything is still quite green after the Wet but the weather is reliably fine and not too hot.)

I have added the spider and insect photos from this trip to my existing Wallaman Falls album on flickr.