about us

Succession Ecology has been formed from the combined experience of Glenn Christie and Briony Horner. With over 50 years combined experience in the environment industry we have built a multi-faceted environmental consulting business. We are passionate about using natural system processes to manage wildlife and restore and build habitat.

Our pathways to this end-point are from two very different directions. Glenn, the practitioner, through a passion for seed collection and exploring new broadacre revegetation techniques and Briony, the ecologist, through research into animal and plant interactions and species resource use.

Succession Ecology can take your project from beginning to end with project design and management, addressing legislative requirements and compliance, site assessments and approvals, to site remediation, recovery and monitoring.


Glenn Christie, Director and Revegetation Consultant

  • Bachelor of Applied Science in Natural Resources Management 1993, University of Adelaide
  • Workzone Traffic Management
  • White Card, Construction Industry Training

Glenn brings 27 years’ experience starting in native seed collection and then expanding into revegetation activities, including: revegetation projects (design, site preparation, direct seeding and planting), seed orchards (design, establishment and management), weed management, remnant vegetation restoration and management.


Dr Briony Horner, Director and Ecologist

  • Bachelor of Applied Science in Natural Resources Management with Honours 1994, University of Adelaide.
  • PhD Ecology 2013, University of Adelaide
  • White Card, Construction Industry Training
  • Remote First Aid

Briony brings 25 years of experience in environmental project design and management. These have included ecological research projects, biological surveys, landscape recovery, revegetation, habitat restoration, native species recovery, seed orchard establishment and management, nursery establishment and management, pest control and pest proof exclusion zones.

We have a number of experienced casual staff who regularly work on various projects with us:

Tess Zach Matthew

Zach Mcintosh

  • Bachelor of Science 2013 (Ecology and Wildlife)
  • Bachelor of Science with Honours (Environmental Biology) 2014, University of Adelaide
  • White Card, Construction Industry Training
  • Provide First Aid HLTAID003, 2017

Zach has several years of industry experience including supporting an environmental impact assessment officer at SA Water performing site assesments on infrastructure works to ensure compliance with environmental policy, water sampling at various reserviors, and drafting reports. He gained further experience with Greening Australia carrying out on ground works such as revegetation with a focus on erosion control, paddock restoration and revegetation.

Matthew Timmis

  • Bachelor of Music Composition with Honours 2004, University of Adelaide
  • Bachelor of Education 2006, University of South Australia 
  • White Card, Construction Industry Training

After studying music composition, Matthew completed an education degree, teaching in both primary and secondary schools for over a decade. His interest in ecology began with volunteering on field work, and revegetation projects at Monarto zoo. He has worked with succession ecology intermittently since 2015, becoming full time in early 2017.




Our services can be divided into three main areas:

1. Native Seed

2. Revegetation

3. Ecology

For copies of our insurance documents, our work health and safety policy please and permits see Technical Documents.

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We provide services and advice to a broad range of groups including:

  • Government
  • Mining companies
  • Power and renewable energy companies
  • Local council
  • Private companies
  • Community and traditional landholder groups
  • Nurseries
  • Private landholders
  • Other environmental services organisations

We hold a range of permits and accreditations relevant to our services.


We have an excellent understanding of work health and safety legislation and ensure that all of our staff follow safe work health and safety practices. We have established safe operating procedures (SOP's) and risk assessments for all of the activities we undertake. These are reviewed with each new job to ensure the safety of our staff and the general public.

We also have Public Liability cover for our business and Work Cover for our staff. For more information please see Technical Documents.