Foxes Lair
  • Home
  • About
    • About Foxes Lair
    • History
    • Landscape and Soils
  • Things To Do
    • Picnic Spots
    • Walk Trails
    • Visit the Arboretum
    • Ride Your Bicycle
    • Scavenger hunt
    • Geocaching and Orienteering
  • Things To See
    • Wildflowers
    • Trees in the Narrogin district
    • Birds
    • Vertebrates
    • Narrogin spiders scorpions ticks
    • Fungi and lichens
  • Foxes Lair seasonal guide
    • December to March
    • April - May
    • June-July
    • August
    • September
    • October
    • November
  • Other great reserves
    • Railway Dam
    • Yilliminning Rock
    • Old Mill Dam
    • Yornaning Dam
    • Contine Hill
    • Highbury Reserve
    • Boyagin Rock
    • Barna Mia
    • Toolibin Lake
    • Newman Block
    • Harrismith Nature Reserve
    • Candy Block
    • Tutanning Nature Reserve
  • 1Foxypress
    • Foxypress
    • Vanishing Farms
  • Contact

Claypit Nature Reserve and Wickepin Water Tank

18/11/2023

0 Comments

 
At a Glance
  • 33 kilometres east of Narrogin and 7 kilometres west of Wickepin
  • A huge water tank of the Comprehensive Water Scheme, which is a lifeblood for local towns and farms
  • Attractive woodland and spring wildflowers
  • Excellent example of red and white ochres
  • Good birdwatching spot
  • No facilities
The 45 hectare Claypit Nature Reserve  is 33 kilometres east of Narrogin and 7 kilometres west of Wickepin. The reserve appears to be much larger because it surrounds a 5 hectare water reserve, and is surrounded by extensive uncleared land on private properties. The reserve is fenced on east, west and southern sides, but the fence on the west includes a wedge of private bushland in pristine condition. There is no boundary fence on the northern side. Most of the bush is in excellent condition, with relatively few weeds. The entry road splits into a continuing but rougher direct approach, and a more pleasant loop on the left. There are no facilities. Excellent bird watching location.
Picture
Picture
PictureGravel and pallid zones
​​The reserve is a remnant of an ancient undulating upland plain, which separates the Avon and Hotham River catchments.
The multi-million year old plain can be likened to a layer-cake, with a top layer of gravel, sand, or ironstone overlying a pale/mottled/red clay (pallid zone) over decomposing granite or dolerite bedrock. Pallid zone is basically kaolinite clay and quartz grains. A very pure deposit is being mined at Uelelling Hill. It is also the clay in ochres.
A sign adjacent to the Narrogin Kondinin Road is a trifle misleading in associating the reserve with the mafic Binneringie Dyke, which is some kilometres further south. Underlying rock here is mainly granite with a few  intruding dolerite dykes. White granite kaolinite intruded by narrow red kaolinite seams from dolerite dykes can be seen on sides of cuttings as you drive to the water tank.

Picture
Red clay from narrow dolerite dykes intruding granite in pallid/pink zone layer in road cutting
Picture
The ancient plain remnants are gravelly mesas, which are mostly bounded by steep-sided breakaways. Gravelly soil on the mesas has  wildflower-rich often Proteaceae shrubland, which interspersed by wandoo, rock sheoak, and brown mallet woodland.
Hard setting loam and clay soils from the pallid/pink zone on breakaway slopes and upland surroundings downslope are mostly dominated by  Brown Mallet woodland.
 Open Wandoo woodland and more dense Rock Sheoak thickets in and around granite outcrops have more fertile soils formed from basement rock.
​Much of the reserve is fairly easy walking country  but there are no signposted walk trails and people with a poor sense of direction may get lost.

I suggest a visit to the following two areas.

PictureWater tank area
1. WICKEPIN WATER WATER TANK
​Park next to the water tank.

The tank has a capacity of 9 million litres, which is pumped through a pipe from the  Harris River Dam near Collie. Constructed in 1964, the tank is part of a water network that is very important to the district. before this, salinity of land and water sources,which began in the early 1900's caused severe fresh water shortages for people and livestock. Before scheme water, Wickepin residents were dependant on local wells and in desperate circumstances, water from the Wickepin Railway Dam.

​Two informal trails provide access to diverse and wildflower-rich country.
A track winding downhill around the water tank  to a granite outcrop features a range of spring wildflowers. Note impressive Tangled Grevillea clumps. The granite outcrop is on the northern boundary of the reserve. Please avoid treading on delicate lichens in and around the rock.
​Surrounding rocky bushland is choked with dead vegetation and can be difficult to walk through.

Picture
Grevillea leptobotrys Tangled Grevillea
Picture
Lawrencella rosea
Picture
Granite outcrop
An easy walking informal track leads to the breakaway. This is pleasant gravel wildflower country. if you look carefully in land to the west, you may be lucky enough to see some Cowslip/Little PInk Fairy Orchid hybrids. Please leave them intact?- they are precious and uncommon.
Picture
Tetratheca retrorsa on breakaway
Picture
Hemigenia humilis
Picture
Cowslip/Little Pink Fairy hybrid
PictureOchre foot fun

2. CLAYPIT
The bare area was an old mining lease to excavate clay for house bricks produced in Narrogin. The red clay overlies a 30 metre wide east-west dolerite dyke, and white from relatively low quartz granite, are also sources of ochre. I collected and made my own red, orange and white ochre from here!
An informal dead-end track on the western side is an easy walk to the west with a breakaway on the left (south) side. The area is pleasant open bushland with some shrub understorey. 

Picture
Picture
White granitic ochre front, red dolerite ochre in background
Picture
Very occasional Caladenia discoidea
Picture
Open wandoo woodland
0 Comments

Yarling Nature Reserve

5/11/2023

0 Comments

 
The 100 hectare Yarling Nature Reserve  (36 kilometres east of Narrogin, 7 kilometres west of Wickepin, originally a mallet reserve), is a rarely visited patch of bush. Turn south from Williams Kondinin road on to Watt Road to access the reserve. The view from the road is mostly uninviting due to dense woodland, which hasn't been burnt for decades. This is not a place for the average tourist as there are no trails or facilities, and it is difficult to walk through some areas.
​However, it is an interesting spot with an attractive and wildflower-rich kwongan sand valley on the southern edge.
Picture
Orange dotted line marks catchment boundaries.
PictureGravel over pallid zone clay
This area is part of a major watershed, which separates the Hotham, Arthur and Avon River catchments. It contains remnants of an ancient undulating lateritic plain, which has been eroded by river systems to the underlying granite. The millions of years old  plain can be likened to a layer-cake, with the top layer of gravel, sand, or ironstone overlying a pale/mottled clay (pallid zone) over decomposing granite or dolerite.
Like most reserves in the district, Yarling is mostly agriculturally poor laterite or rock. A line of breakaways separate a remnant of the ancient  plain from more recent soils on underlying layers to the north and west.

Picture
Ancient sandy/ gravelly plain (uncoloured) southwest of a line of breakaways
The northern breakaway roughly follows a dolerite dyke, which is is associated with the Binneringie Dyke further to the south. This is because the dyke was more resistant to erosion from the granite contact line being 'cooked' into more resistant rock, and stony laterite formed on dolerite being more erosion-resistant than that formed on granite.
Picture
LIne of granite rocks in Yarling Nature Reserve mark contact with the dolerite dyke (brown soil) on the right
Rock sheoak woodland is associated with more fertile granite or dolerite rock soil.
​
In the north-western corner, one can see a raised bank in the bush, which is the remnant of the first railway line from Narrogin to Wickepin. Built in 1910, it was dismantled after being replaced by a heavier gauge deviation in 1915, which runs past Wickepin Dam.
The following map is a copy from an excellent account of Wrayton Farm by Rhonda Bartlett.
Picture
Picture
Much of the sheoak forest is choked by dead saplings, which germinated after a wildfire over 50 years ago, and have slowly died off due to competition without any other fires to remove the dead litter. The shrub understorey has become impoverished because shrubs that depend on fire for germination have died.
Picture
Sheoak woodland impoverished by lack of a cool burn to regenerate the understorey
A few patches of open Red Morrel woodland occur on dolerite brown loam.
Picture
Red Morrel / Eucalyptus longicornis tree with sparse understorey on brown soil overlying dolerite
Brrown Mallet whipstick woodland lines the breakaway slopes and edges and other areas where the pallid zone clay layer below the gravel is exposed. The mallets are mostly a uniform size due to mass regrowth after the fire over 50 years ago. Since then the stand has been very slowly thinning in a fairly monotonous landscape.
Picture
Brown mallet whipstick woodland. Large dead trees were killed in a hot fire, which germinated seedlings decades ago.
Picture
Eastern edge breakaway
Picture
Dryandra tea / tree breakaway
Picture
Brown Mallet breakaway
PictureBrown and silver mallets
The ancient lateritic plain on the south eastern side contains lateritic stony and impoverished soils. There are a few stony dryandra ridges and an gentle slope of open Silver Mallet Eucalyptus falcata woodland interspersed with brown mallets. Silver Mallet is a beautiful tree, which can be confused with Salmon Gums. However, Silver Mallet only grows on lateritic gravel soils, and Salmon Gum occurs on clay slopes and valleys.
​
on the southern edge there is group of rare Brown Mallet / Red Morrel hybrids.

Picture
Silver Mallets
Picture
Silver Mallet merging into dryandra stony gravel
Picture
Red morrel / Brown Mallet hybrids
PictureSeptember
Species-rich winter-moist kwongan sandplain on a very broad sandy valley on the southern side contains an a wide range of unusual wildflowers, with varying flowering times from August to November. The lower end is mainly dense Eremaea pauciflora shrubland crossed by numerous kangaroo tracks. From September to November I noticed  plants flowering with the best in late October. The easiest way to reach this area is to walk east from the patch of Red Morrel trees on the western side, but it is not easy walking.

Picture
Eremaea pauciflora sandy winter-moist shrubland
as one walks up the valley Eremaea pauciflora gives way to other species such as Calothamnus quadrifidus and Verticordias on yellow sand then Callitris pines.
Picture
Hibbertia subvaginata late September
Picture
Calothamnus quadrifidus late October
Picture
Calytrix flava Early November
A triangle on the south eastern edge was illegally cleared, which is very sad as most of it was wonderful kwongan sandy shrubland of little agricultural value. It was replanted some years later in 1996 to wandoos and understory shrubs. 
The wandoos and shrubs have grown well, apart from the deep white sand area. However after 27 years there are still extensive bare areas and very little recruitment of new species from the adjacent uncleared area.
​Our native bush sandy soils are very sensitive, and recover extremely slowly once organic matter, seeds and native microbes has been reduced. 
Picture
White sand. Poor recovery after 27 years
Picture
Gravel. Planted species have grown well but little recruitment outside of planting lines.
0 Comments

Comesperma: Pea Flower Mimics

4/9/2023

0 Comments

 
Comesperma is an Australian genus (mainly in WA), which belongs to the Polygalaceae  (Milkwort) family that is widespread in other countries. The name Comesperma means 'hairy seed", which  relates to the seeds bearing tufts of hair. They are climbers or small wiry shrubs (that are often grazed by kangaroos). I am intrigued by their small 'upside down pea' flowers: an evolutionary adaption to attract native bees that pollinate adjoining pea plants.
Picture
Comesperma interregnum a climber
Picture
Comesperma volubile a climber
Picture
Comesperma calymega a shrub
Picture
Comesperma scoparia a shrub
On closer inspection, it is obvious that Comesperma flowers are very different from peas. 

When a bee lands on a pea flower, its legs part the wing petals to reveal the underlying stamens and pistil.
​There is little internet information on Comesperma pollination apart from them being pollinated by native bees, and that the flowers use secondary pollen presentation.
Comesperma flowers are quite strange. Two of the five sepals comprise the coloured 'wings' (like an upside-down Donkey orchid - another pea flower mimic), and the petals form a pouch-like 'keel' enclosing the stamens and pistil) with two upright  petals at the end.
Picture
Typical pea flower
Picture
Comesperma scoparia front view
Picture
Comesperma scoparia rear view
On close inspection the story gets even stranger. 
White UV fluorescent patterns lead the pollinator to a small hole between the keel and outer petals. What could be inside?

It was no mean effort cutting into the tiny keel without destroying its contents, so the following images are a bit ragged.
First Comesperma scoparia.
The style appears to grow up in a curve, pushing the cup-shaped stigma into anthers which are crowded at the top of the keel. This loads pollen into the cup shaped stigma ready for contact with a pollinator's tongue which presumably is poked into the entrance. The last image shows that the style had straightened out during dissection. Blowed if I know, but perhaps the style is held under tension inside the keel. Could it poke out after contact with the insect's tongue? The active part of the stigma is a patch on the side of the style underneath the stigma cup.
Picture
Comesperma scoparia keel petal from above
Picture
Pistil and stamens crowded inside keel
Picture
Straightened pistil
PictureComesperma volubile
My attempt as dissecting Comesperma volubile shows that the stamens are attached as a band to the interior of the keel.
My next challenge is to see them being pollinated.

​Curious little plants!


Picture
Comesperma volubile keel
Picture
Curved style and some of the stamens
Picture
Stamens on one side of keel interior
0 Comments

Inside a False Boronia

15/8/2023

0 Comments

 
False Boronia, Lysiandra calycina (fomerly Phyllanthus calycinus) is an unobtrusive little plant with an interesting story. Found on sandy gravel soils in Narrogin, it belongs to the family Phyllanthaceae, which  mostly occurs in subtropical areas. The plant has soft green leaves and white flowers with pinkish green shades, which dangle down from the stem on long  flower stalks (pedicels). Flowers have no petals. The apparent petals are sepals, hence the name Leaf Flower. 
Picture
Male and larger female flowers
Picture
Lysiandra calycina plant
​Now for the interesting part

Each plant has male and female flowers (monoecious). Females flowers are larger and intermixed with more numerous male flowers.
Picture
Lysiandra calycina female flower
Picture
Lysiandra calycina female flower
Picture
Lysiandra calycina male flower
Picture
Lysiandra calycina male flower
​I have never seen any pollinators approach the flowers. This is probably because the flowers have no scent, but they do have large nectar glands at the base of each flower.

Other Phyllanthaceae species are pollinated by insects which partially parasitise them.
One pollinator is a moth which fed on nectar, transmitted pollen to the stigma and laid an egg. When the grub hatched it burrowed down the style to the ovary, ate ovules and pupated to complete its life cycle. As the moth left some ovules, to develop seeds, This is a win win for plant and moth. It also occurs in Boronias.
For other species a tiny gall midge fed on nectar at the spongy floral disc of male flowers and laid eggs in male flower buds, picking up pollen and contacting the styles of nearby female flowers in the process. Infested buds developed into sterile galls, within which midge larvae completed their development. 

​Nature is amazing!
0 Comments

Donkey Orchids- Pea Flower Mimics

8/7/2023

0 Comments

 
Donkey Orchids (Orchidaceae Diuris species) are only distantly related to pea flowers (Fabiaceae), do not produce nectar reward, and at first glance look quite dissimilar. However, bees' vision differs from humans', and Diuris  flowers have evolved to be great pea flower mimics.
There are a number of Diuris species In this district, but several are difficult for average person to separate. For simplicity I put them into three groups.
  1. Donkey orchids (most common)  D. brachyscapa Western Wheatbelt Donkey Orchid, D. corymbosa Common Donkey Orchid, Diuris porrifolia, D. setaceae Bristly Donkey Orchid (at Newman Block).
  2. Bee Orchids D. decrementum Bee Orchid, D. laxiflora Common Bee orchid.
  3. Purple Pansy Orchid (Tarwonga Road) D. longifolia.
Picture
Donkey Orchid
Picture
Bristly Donkey Orchid
Picture
Bee Orchid
Picture
Purple Pansy Orchid
This interesting (and very detailed) research paper describes how Diuris brumalis masquerades as a Daviesia pea flower so solitary native bees will pollinate them. The bee genus is Trichocolletes, pea flower specialists, which resemble imported Honey Bees, but fly faster and more erratically.
Bees associate the Daviesia shape and colour with a nectar reward, and female bees also collect pollen.
I coloured the diagram to show how shape of the central part of the Diuris flower resembles a Daviesia flower.
colours are similar, but bees do not see the same colours as we do. In addition, bees can see ultraviolet light, which parts of the flower reflect to make them appear brighter (to bees but not us).
Picture
Donkey orchid Daviesia comparison
Donkey orchids are less common than pea flowers in the bush, so to attract bees to them from a distance (up to 8 metres), they developed larger flowers and waving bright and reflective 'donkey-ear' petals.
​The researchers measured equal numbers of Tricocolletes and honey bees visiting Diuris brumalis in the Perth hills, and departing with the same number of orchid pollinea on their head. However honey bees were much less effective in transferring pollinea to the orchids to pollinate them This is another example of possible negative effects of honeybees on biodiversity.

​Further Reading: Footprints in the Pollen
0 Comments
<<Previous
Forward>>

    Author

    Doug Sawkins is a friend of Foxes Lair 

    Categories

    All
    Animals Other
    Birds
    Disorders Plant Animal
    Fungi Lichens
    History
    Insects Bugs Other Arthropods
    Landscapes Soils
    Other Reserves And Places
    Reptiles
    Spiders Other Arachnids
    Tree
    Walks Other Facilities
    Wasp
    Wildflowers Orchids
    Wildflowers Other Summer Autumn
    Wildflowers Other Winter Spring
    Wildflowers Parasitic

    Archives

    February 2025
    January 2025
    December 2024
    November 2024
    May 2024
    April 2024
    December 2023
    November 2023
    September 2023
    August 2023
    July 2023
    June 2023
    May 2023
    April 2023
    March 2023
    February 2023
    January 2023
    December 2022
    October 2022
    July 2022
    June 2022
    May 2022
    April 2022
    March 2022
    January 2022
    November 2021
    October 2021
    September 2021
    August 2021
    July 2021
    June 2021
    May 2021
    April 2021
    March 2021
    February 2021
    January 2021
    December 2020
    November 2020
    October 2020
    September 2020
    August 2020
    July 2020
    June 2020
    May 2020
    April 2020
    March 2020
    February 2020
    January 2020
    November 2019
    October 2019
    July 2019
    April 2019
    March 2019
    February 2019
    January 2019
    December 2018
    November 2018
    September 2018
    July 2018
    May 2018
    April 2018
    March 2018
    February 2018
    January 2018
    December 2017
    November 2017
    October 2017
    September 2017
    July 2017
    May 2017
    April 2017
    February 2017
    January 2017
    December 2016
    November 2016
    October 2016
    September 2016
    August 2016
    July 2016
    June 2016
    May 2016
    April 2016
    March 2016
    February 2016
    January 2016
    December 2015
    November 2015
    October 2015
    September 2015
    August 2015
    July 2015
    June 2015
    May 2015
    April 2015
    March 2015
    February 2015
    January 2015
    September 2014
    August 2014
    April 2014
    March 2014
    February 2014
    May 2012
    March 2012
    October 2011
    September 2011
    August 2011
    April 2011

© 2015 All Rights Reserved. Doug Sawkins, Australia.