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North Shore District Group

Meetings


Friday Night Meetings 2020

Meetings are held at 8.00 p.m. on the second Friday of the month at:

Willow Park Community Centre, 25 Edgeworth David Avenue, Hornsby, NSW. 

Plant sales from 7.45 p.m.

Upcoming meetings


ALL MEETINGS AND OTHER ACTIVITIES ARE CANCELLED

UNTIL FURTHER NOTICE DUE TO COVID-19.

 

 14 February 2020

Speaker
  SSimon Leake 
 Topic   " The soils and vegetation of Barangaroo Headland Park " 
 Background 

Simon will describe how the soil and vegetation associations were developed matching soil type and landscape position to vegetation type resulting in the highly successful naturalistic landscape you now see at Barangaroo.

For this project, commonly available recycled inorganic resources (crushed sandstone and recycled sand from building excavation) were combined with composted wood mulch screened from green garden waste collections and used to recreate a three-tiered replacement soil landscape for Barangaroo. The mulch layer or “O” (for organic) horizon would be analogous to the forest litter layer; the topsoil or A horizon, a well-drained sandy soil containing nutrients, organic matter and biological life and the Subsoil or B horizon, a well-drained water holding layer for root anchorage and moisture reserve. https://sesl.com.au/projects/barangaroo-headland-park/

Soil fertility levels were established using the "ash bed" principle where the initial soil fertility was established based on what the soil nutrient levels would be after a fire occurs to result in a soil fertility level that allows the vegetation to develop properly.

Simon is a soil scientist extraordinaire who leads a team with extensive achievements in rehabilitation, reconstruction and renewal of diverse urban projects and mine sites.



13 March 2020

Speaker
   Bruce Usher, APS member   
 Topic  "Angophora costata and friends - A Visual Journey"
 Background 



I’m not a biologist and I flunked Latin at the end of 1963. But I took a phone call in September 2005 from a well know Sydney graphic designer (Ross Renwick the founder of the Billy blue group). It went something like this.

"Busher.” One of my nicknames.

“Do you want to do a book with me?”

Curious, I replied. ‘I’d love to Ross, what’s the subject?’

Renwick laconically replied, “The Angophora tree.” Paused momentarily and added.

“You will have 200 hours of photography and I will have 20 hours of writing.”

It’s 2020 and Ross passed away in late 2012 but I have a very interesting body of work on the Angophora costata (and its friends).


3 April 2020

Speaker
 Judy Harrington
 Topic  "Glossy Black-cockatoo "
 Background 


Distribution maps of the rather elusive Glossy Black-cockatoo overlap with much of the east coast forests that have been devastated by wildfire this spring and summer. Our guest speaker will discuss the current concern felt by the birding and conservation communities about the plight of Glossy Black-cockatoos in the aftermath of widespread fires and in particular, the loss of Allocasuarina (She-oak) stands that support breeding families of Glossy blacks.

Judy Harrington is the president of Birdlife Southern NSW and has an extensive history of public education and participation in wildlife monitoring in her previous roles at SOPA, in her involvement with the highly-popular Sea-EagleCAM and the Birdlife Discovery Centre at Sydney Olympic Park and with the Frog & Tadpole Study Group. 



8 May 2020

Speaker  Daniel Clarke, Conservation Officer, APS NSW
 Topic  "Conservation in APS, NSW" 
 Background 


Dan will talk about 4 years of population assessment and monitoring of the threatened flora species Prostanthera densa (Villous Mint Bush). Assessment and monitoring has taken place at its five known sites, on the NSW Coast, as part of the NSW Saving our Species program. This work has involved crucial help and support from APS Sutherland members. Dan will canvass the SOS Program, and will outline recent changes to NSW Biodiversity legislation. Dan will also briefly cover other species and ecological communities that he has worked on for the Saving our Species Program and showcase other projects that other APS groups are involved in. Dan’s image is of APS Sutherland Member John Arney, measuring and tagging a plant of Prostanthera densa (Marley, Royal NP, 2016).

Dan is currently a botanical consultant undertaking vegetation surveys, threatened plant assessments and botanical advice in many parts of NSW. Dan also works weekly for TAFE NSW as a Conservation and Land Management teacher, teaching plant identification and bushland regeneration.


12 June 2020

Speaker
 Michael Batley, APS member  
 Topic  " Looking for bees"
 Background 


While looking for native bees over the last twenty years, Michael has seen many lovely species in lots of interesting places. Although bees are formally identified using shape and colour, often with the aid of a microscope, he has come to realise that, in the field, behaviour frequently provides useful additional clues.

There have been 250 species collected from within 40 km of Hornsby and it is estimated that there may be 50 additional species in the area, so there is a lot to look out for on a walk through local bushland. The talk will include suggestions about where to look for bees, when to look and what to look for.

Photo: A tree stump containing nests of Lasioglossum peraustrale in a small park in North Ryde 


10 July 2020

Speaker
 To be Announced
 Topic   " To be Announced" 
 Background 



14 August 2020

Speaker
 To be Announced
 Topic   " To be Announced" 
 Background 



11 September 2020

Speaker
 To be Announced
 Topic   " To be Announced" 
 Background 



9 October 2020

Speaker
 To be Announced
 Topic   " To be Announced" 
 Background 


1

3 November 2020

Speaker
 To be Announced
 Topic   " To be Announced" 
 Background 



Past meetings of 2019

 8 February 2019

Speaker
  Kathy Potter, FATS
 Topic   "Frogs and the plants they like." 
 Background 

 

Kathy Potter from the Frog and Tadpole Society (FATS) will share her extensive knowledge of frogs, tadpoles and frog ponds. Kathy will be bringing live frogs for you to see.



8 March 2019

 Speaker
  Jayden Walsh
 Topic  "Flora and Fauna of Ku-Ring-Gai Chase National Park.'
 Background


Jayden Walsh will give an insightful presentation on the Fauna and it's connections to the Flora of Ku-ring-gai Chase NP. Come along to learn about rare and infrequently sighted wildlife that calls our backyard home and how it utilises the unique flora of Sandstone escarpments."
Jayden has been studying the wildlife in Ku-ring-gai Chase National Park since he was a high school student and has done several presentations for "Wildthings”.


12 April 2019

 Speaker   Linda Groom 
 Topic  "Save Kosci Walk"   
 Background


In November-December 2018, five people walked 560 kilometres from Sydney to the summit of Kosciuszko. On the way they were joined by hundreds of supporters, some strong-legged, some simply determined. Why bother?

The walk sought stronger action from the NSW government to reduce damage caused by feral animals, particularly wild horses, in Kosciuszko National Park. Wild horses are recognized by the NSW Office of Environment and Heritage as threats to at least 9 plant species, including 2 orchids, as well as to sphagnum bogs.

The talk gives a brief introduction to these species and the mechanisms by which wild horses pose a threat to them, then describes the protest walk and the public reactions to the walk. The issue of horses in national parks remains a controversial issue, but the presenter sees some hope that it can be resolved by emphasizing the positive – in this case the beauty of national parks – and by raising awareness of the environmental impacts of the horses.  

Presenter

Linda Groom’s most recent volunteer position was Convenor of Save Kosci Inc. She was formerly Curator of Pictures at the National Library, Convenor of the National Photography Festival, past-President of the Canberra Bushwalking Club and president of a number of national professional organisations. She has no botanical qualifications

 

10 May 2019

 Speaker

   John Whale, APS Scholarship Recipient

 Topic

  "Genetic Variation in Red Gum Species"

 Background


 The details will be available soon


14 June 2019

 Speaker

  Wendy Grimm, APS member 

 Topic

  "Native Pollinators"

 Background


Photo: Chloropid fly on flower of Corunastylis fimbriata.

 What motivates insects to visit plants? How do plants deceive insects into providing pollination services?

These questions have tied Wendy’s interest in Australian native plants to her passion for capturing images of small, mostly inconspicuous insects. She will talk about insect pollinator relationships in several well-known plant families



12 July 2019

 Speaker

 Jacob Sife, Natural Areas Program Leader, Ku-ring-gai Council

 Topic

  ‘Collaborating for conservation in Ku-ring-gai’

 Background

 

Ku-ring-gai is known as a biodiversity hotspot and a refuge for many species of flora and fauna struggling to survive in the highly urbanised Sydney basin. Ku-ring-gai Council manage numerous native and threatened species, populations and ecological communities in an effort to protect, conserve and enhance our biodiversity. Critical to the success of conservation programs are the collaborations formed with community and Government bodies. In this talk, Jacob will look at the conservation programs in Ku-ring-gai, particularly those which have received funding through the State Government’s Saving our Species or Ku-ring-gai Council’s Environment Levy, he will share data on outcomes and the most up to date monitoring on some of our most endangered species, including the critically endangered Hibbertia spanantha. The details will be available soon


2 August 2019

 Speaker

   Ron Gornall, APS Member. 

 Topic

  " An Interactive plant ID session"

 Background

 Long time APS member Ron Gornall will lead an Interactive Plant

Identification session. Members are encouraged to bring in plants they need identifying or help with growing tips.


13 September 2019

 Speaker

  Susan Everingham, APS Scholarship Recipient 

 Topic

  " Changes in Sydney Flowering Times"

 Background

Flowering phenology (time of flowering events) relies heavily on cues from environmental conditions, particularly temperature. Studies have shown that for many plants species, flowering dates are occurring earlier in the season due to increases in atmospheric temperature because of anthropogenic climate change. My study aims to investigate existing flowering time changes across the Sydney region. I have used an old data set of flowering time collected by Price in 1963, combined with a resampling of a subset of plant species flowering time during 2018-2019 to determine if Sydney flora is flowering earlier in the season as time progresses.


11 October 2019

 Speakers

  Sue Bowen and Margaret Hamilton, APS Members 

 Topic

  " Propagation Demonstration"

 Background

Dr Sue Bowen (President) and Margaret Hamilton (Propagation team leader) will lead a practical workshop on propagating native plants from cuttings and seeds. Attendees are asked to bring their own, labelled plant material and seeds to the workshop. The plant material is to be non-flowering, firm, new-growth and is to be placed in damp, plastic bags. Participants will learn how to prepare and pot-up cuttings and seeds to take home to grow and/or donate to the propagation team.

 

November 2019

 Speaker

  Robin Buchanan 

 Topic

 "Restoring Natural Areas."

 Background 


Bush regenerators; Just weeders or ecosystem managers? A look at the importance of bushcare for the management of urban bushland. 

Robin Buchanan has written two books on bush regeneration; Bush Regeneration, Recovering Australian Landscapes and Restoring Natural Areas in Australia. She taught bush regeneration as well as conservation and land management at Ryde TAFE for over 20 years. She is a local resident and a passionate advocate for our local bushland.


13 December: Christmas Party at the Ku-ring-gai Wildflower Garden




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