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Tree regeneration, Fenner School July 2009
- 1. Reversing paddock tree decline in Australia's temperate grazing zone Joern Fischer, Jenny Stott, Andre Zerger, Garth Warren, Kate Sherren, Robert Forrester (and other collaborators) The Fenner School of Environment and Society The Australian National University 2 July 2009
- 5. Modification levels McIntyre, S., McIvor, J., Heard, K. (2002). Managing and conserving grassy woodlands. CSIRO Publishing.
- 10. Photo: Kate Sherren
- 14. The ‘Sustainable Farms’ project Funded by the Australian Government, via the Australian Research Council (ARC) and the Commonwealth Environment Research Facilities Program (CERF)
- 16. Management factors affecting regeneration Partly based on: Vesk, P. A., and J. W. Dorrough. 2006. Getting trees on farms the easy way? Lessons from a model of eucalypt regeneration on pastures. Australian Journal of Botany 54:509-519.
- 19. Grazing regimes at our sites
- 32. Trees and water infiltration “… both sorptivity and steady-state infiltration were significantly greater (approximately fivefold) under the timbered strata compared with the grassy slopes or cultivation …” D. J. Eldridge, D. Freudenberger, Austral Ecology 30, 336 (May, 2005).
- 33. Trees and bats (… and their estimated economic value in the USA …) L. F. Lumsden, A. F. Bennett, Biological Conservation 122, 205 (Mar, 2005). Quote from a study in the USA: “ We estimate the bats' value as pest control for cotton production in an eight county region in south-central Texas. Our calculations show an annual value of $741000 per year, with a range of $121000-$1725000, compared to a $4.6-$6.4 million per year annual cotton harvest.” C. J. Cleveland et al., Frontiers in Ecol. Environm. 5, 238 (Jun, 2006).
- 34. Trees and the Superb Parrot (threatened in NSW) Manning et al. (2004).Biol. Conserv. 120, 363-374 Superb Parrot (Geoffrey Dabb, photogallery.canberrabirds.org.au)
- 36. Reversing the crisis “ Contrary to common wisdom, scattered trees are not doomed to be the living dead. Although low seed supply and a history of intensive land use impose constraints on tree regeneration in heavily cleared areas, reducing nutrient inputs and applying fast rotational grazing can substantially enhance regeneration.” (Fischer et al. 2009 PNAS)
- 37. Two vital management challenges: Soil nutrients and livestock grazing McIntyre, S., Lavorel, S. (2007). Agric. Ecosys. Environm. 119, 11-21
- 44. The ‘Sustainable Farms’ project Funded by the Australian Government, via the Australian Research Council (ARC) and the Commonwealth Environment Research Facilities Program (CERF)
- 47. UNGRAZED WOODLAND REVEGETATION PADDOCK SCATTERED TREE GRAZED WOODLAND
- 48. Welcome Swallow Tree Martin Rainbow Bee-eater Cockatiel Varied Sitella White-browed Scrubwren Eastern Yellow Robin Speckled Warbler Spotted Pardalote Richard’s Pipit Brown Falcon Peaceful Dove Common Blackbird Rufous Songlark White-thr. Treecreeper Brown Treecreeper White-winged Chough Laughing Kookaburra Crimson Rosella Striated Pardalote Eastern Rosella Magpie-lark Crested Pigeon Noisy Miner Sulphur-cr. Cockatoo Grey-crowned Babbler Jacky Winter Superb Fairy-wren Superb Parrot
- 49. Overview of social science components + policy analysis and economic modelling
- 52. Land sparing or wildlife-friendly farming? Fischer, Brosi, Daily, Ehrlich, et al. (2008). Frontiers in Ecology and the Environment.
Notes de l'éditeur
- Introduction I’m here to talk about Sustainable Farms, a very new project funded by the Department of Environment, Water, Heritage and the Arts in the last CERF round, and the Australian Research Council. This particular presentation conveys the results of a scoping workshop held to set the research direction of the project, and give you a sense of what we hope to do over the next few years. I am Kate Sherren, research fellow on Sustainable Farms. I’m based at the Fenner School of Environment and Society at ANU, as is the rest of the Sustainable Farms team, which are Stephen Dovers, Joern Fischer, Jacki Schirmer, and – soon – Helena Clayton. Our advisory panel is also mostly local, comprising Neil Gunningham, Libby Robin and Richard Price. To give you some perspective on my background, I am a Geographer by training – specifically spatial science and cartography. I have worked in other resource management settings, including: Forestry in British Columbia, and Urban water issues in New Orleans But I’m quite new to the agricultural context. I completed a PhD last year at the Fenner School where I used numerous methods from the social sciences, including social network analysis, interviews, and questionnaires. This project provides a good opportunity for me to go forward, merging both skill sets.
- This is all the different sites graphed. If we draw rough polygons around them you can see that all the site of the same type are pretty much clustered.