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Australian Journal of Botany Australian Journal of Botany Society
Southern hemisphere botanical ecosystems
RESEARCH ARTICLE

A comprehensive approach to assessing the future persistence of the endangered rainforest tree, Macadamia jansenii (Proteaceae) and the impact of fire

Glenn Hayward https://orcid.org/0000-0002-6122-4556 A , Catherine Nock B , Yoko Shimizu A and Alison Shapcott https://orcid.org/0000-0003-3734-052X A C
+ Author Affiliations
- Author Affiliations

A Genecology Research Center, School of Science Technology and Engineering, University of the Sunshine Coast, Maroochydore DC, Qld 4558, Australia.

B Southern Cross Plant Science, Faculty of Science and Engineering, Southern Cross University, PO Box 157, Lismore, NSW 2480, Australia.

C Corresponding author. Email: ashapcot@usc.edu.au

Australian Journal of Botany 69(5) 285-300 https://doi.org/10.1071/BT20160
Submitted: 8 December 2020  Accepted: 30 May 2021   Published: 28 June 2021

Abstract

The Endangered Macadamia jansenii (C.L. Gross & P.H. Western, 1992) was known only from one small populationand a reintroduction program was implemented from 2009 to increase the number of populations. Recently, new subpopulations were discovered. However, in 2019, fire directly affected M. jansenii and the surrounding habitat. This study aimed to examine the abundance and distribution of M. jansenii in the wild pre- and post-fire, as well as to assess the success of the reintroduction program and species population viability. We undertook genetic analysis, population viability analysis (PVA) and updated the existing habitat models. The known wild M. jansenii population increased in abundance from 59 in a single population to 200 individuals (including seedlings), across three subpopulations. Results from the post-fire survey suggest that 83% of the wild plants have survived, with many plants resprouting. The newly discovered subpopulations were within predicted suitable habitat in the Bulburin National Park. These subpopulations are genetically similar to the original known population. Novel alleles suggest the potential for more plants to be located. The reintroduction program successfully established 20 individuals. PVA results indicate that even with the effects of fire, the species is unlikely to become extinct in the next 150 years.

Keywords: Macadamia jansenii, fire regeneration, endangered, population viability analysis, PVA, population genetics, fire, resprouting, subpopulation.


References

Akçakaya HR (2005) ‘RAMAS GIS: Linking Spatial Data with Population Viability Analysis (ver. 5).’ (Applied Biomathematics: Setauket, NY, USA)

Akçakaya HR, Atwood JL (1997) A habitat-based metapopulation model of the California gnatcatcher. Conservation Biology 11, 422–434.
A habitat-based metapopulation model of the California gnatcatcher.Crossref | GoogleScholarGoogle Scholar |

Akçakaya HR, Burgman MA, Ginzvurg LR (1999) ‘Applied Population Ecology: Principles and Computer Exercises using RAMAS’, 2nd edn. (Sinauer Associates: Sunderland, MA, USA)

Andrello M, Devaux C, Quétier F, Till–Bottraud I (2018) Paying for conservation: a bioeconomic analysis of the effects of land management options on the viability of an endangered species, Eryngium alpinum. Journal of Applied Ecology 55, 1940–1950.
Paying for conservation: a bioeconomic analysis of the effects of land management options on the viability of an endangered species, Eryngium alpinum.Crossref | GoogleScholarGoogle Scholar |

Bai Y, Wei X, Li X (2018) Distributional dynamics of a vulnerable species in response to past and future climate change: a window for conservation prospects. PeerJ 6,
Distributional dynamics of a vulnerable species in response to past and future climate change: a window for conservation prospects.Crossref | GoogleScholarGoogle Scholar | 30364599PubMed |

Bell RC, Parra JL, Tonione M, Hoskin CJ, Mackenzie JB, Williams SE, Moritz C (2010) Patterns of persistence and isolation indicate resilience to climate change in montane rainforest lizards. Molecular Ecology 19, 2531–2544.
Patterns of persistence and isolation indicate resilience to climate change in montane rainforest lizards.Crossref | GoogleScholarGoogle Scholar | 20497322PubMed |

Bernardo HL, Albrecht MA, Knight TM (2016) Increased drought frequency alters the optimal management strategy of an endangered plant. Biological Conservation 203, 243–251.
Increased drought frequency alters the optimal management strategy of an endangered plant.Crossref | GoogleScholarGoogle Scholar |

Bernardo HL, Vitt P, Goad R, Masi S, Knight TM (2018) Count population viability analysis finds that interacting local and regional threats affect the viability of a rare plant. Ecological Indicators 93, 822–829.
Count population viability analysis finds that interacting local and regional threats affect the viability of a rare plant.Crossref | GoogleScholarGoogle Scholar |

Bowman DMJS (2000) ‘Australian Rainforests: Islands of Green in a Land of Fire.’ (Cambridge University Press: Cambridge, UK)

Bruna E (2002) Effects of forest fragmentation on Heliconia acuminata seedling recruitment in central Amazonia. Oecologia 132, 235–243.
Effects of forest fragmentation on Heliconia acuminata seedling recruitment in central Amazonia.Crossref | GoogleScholarGoogle Scholar | 28547357PubMed |

Byrne M, Stone L, Millar MA (2011) Assessing genetic risk in revegetation. Journal of Applied Ecology 48, 1365–1373.
Assessing genetic risk in revegetation.Crossref | GoogleScholarGoogle Scholar |

Coates DJ, McArthur SL, Byrne M (2015) Significant genetic diversity loss following pathogen driven population extinction in the rare endemic Banksia brownii (Proteaceae). Biological Conservation 192, 353–360.
Significant genetic diversity loss following pathogen driven population extinction in the rare endemic Banksia brownii (Proteaceae).Crossref | GoogleScholarGoogle Scholar |

Collins L, Bennett AF, Leonard SWJ, Penman TD (2019) Wildfire refugia in forests: severe fire weather and drought mute the influence of topography and fuel age. Global Change Biology 25, 3829–3843.
Wildfire refugia in forests: severe fire weather and drought mute the influence of topography and fuel age.Crossref | GoogleScholarGoogle Scholar | 31215102PubMed |

Commander LE, Coates D, Broadhurst L, Offord CA, Makinson RO, Matthes M (2018) ‘Guidelines for the Translocation of Threatened Plants in Australia’, 3rd edn. (Australian Network for Plant Conservation: Canberra, ACT, Australia)

Costello G, Gregory M, Donatiu P (2009) Southern Macadamia Species Recovery Plan 2008–2112. Report to Department of the environment and Heritage, Canberra, ACT, Australia.

Department of Natural Resources and Mines (2001) Metadata: Digital elevation model – 25 metre – Burnett catchment – data package. Geoscience Australia, Canberra, ACT, Australia.

Department of Natural Resources, Mines and Energy (2020) Metadata: Watercourse lines – North East Coast drainage division. Queensland Department of Natural Resources, Mines and Energy, Brisbane, Qld, Australia.

Department of the Environment and Energy (2016) Improving the trajectories of 30 plants by 2020. (Australian Government Department of Agriculture, Water and Environment) Available at https://www.environment.gov.au/biodiversity/threatened/species/30-plants-by-2020 [Verified 25 March 2021]

Fensham RJ, Fairfax RJ, Butler DW, Bowman DMJS (2003) Effects of fire and drought in a tropical eucalypt savanna colonized by rain forest. Journal of Biogeography 30, 1405–1414.
Effects of fire and drought in a tropical eucalypt savanna colonized by rain forest.Crossref | GoogleScholarGoogle Scholar |

Gamba-Trimiño C, Bernal R, Bittner J (2011) Demography of the clonal palm Prestoea acuminata in the Colombian Andes: Sustainable household extraction of palm hearts. Tropical Conservation Science 4, 386–404.
Demography of the clonal palm Prestoea acuminata in the Colombian Andes: Sustainable household extraction of palm hearts.Crossref | GoogleScholarGoogle Scholar |

García-Barriuso M, Fernández-Castellano C, Rocha J, Bernardos S, Amich F (2012) Conservation study of endemic plants in serpentine landscapes: Antirrhinum rothmaleri (Plantaginaceae), a serpentinophyte with a restricted geographic distribution. Plant Biosystems 146, 291–301.
Conservation study of endemic plants in serpentine landscapes: Antirrhinum rothmaleri (Plantaginaceae), a serpentinophyte with a restricted geographic distribution.Crossref | GoogleScholarGoogle Scholar |

Godefroid S, Piazza C, Rossi G, Buord S, Stevens A-D, Aguraiuja R, Cowell C, Weekley CW, Vogg G, Iriondo JM, Johnson I, Dixon B, Gordon D, Magnanon S, Valentin B, Bjureke K, Koopman R, Vicens M, Virevaire M, Vanderborght T (2011) How successful are plant species reintroductions? Biological Conservation 144, 672–682.
How successful are plant species reintroductions?Crossref | GoogleScholarGoogle Scholar |

Gogol-Prokurat M (2011) Predicting habitat suitability for rare plants at local spatial scales using a species distribution model. Ecological Applications 21, 33–47.
Predicting habitat suitability for rare plants at local spatial scales using a species distribution model.Crossref | GoogleScholarGoogle Scholar | 21516886PubMed |

Guisan A, Broennimann O, Engler R, Vust M, Yoccoz NG, Lehmann A, Zimmermann NE (2006) Using niche-based models to improve the sampling of rare species. Conservation Biology 20, 501–511.
Using niche-based models to improve the sampling of rare species.Crossref | GoogleScholarGoogle Scholar | 16903111PubMed |

Hardner CM, Peace C, Lowe AJ, Neal J, Pisanu P, Powell M, Schmidt A, Spain C, Williams K (2009) Genetic resources and domestication of macadamia. Horticultural Reviews 35, 1–125.

Henry RJ (2014) Sequencing of wild crop relatives to support the conservation and utilization of plant genetic resources. Plant Genetic Resources: Characterisation and Utilisation 12, S9–S11.
Sequencing of wild crop relatives to support the conservation and utilization of plant genetic resources.Crossref | GoogleScholarGoogle Scholar |

Hilbert DW, Ostendorf B, Hopkins MS (2001) Sensitivity of tropical forests to climate change in the humid tropics of north Queensland. Austral Ecology 26, 590–603.
Sensitivity of tropical forests to climate change in the humid tropics of north Queensland.Crossref | GoogleScholarGoogle Scholar |

Hoebee SE, Young AG (2001) Low neighbourhood size and high interpopulation differentiation in the endangered shrub Grevillea iaspicula McGill (Proteaceae. Heredity 86, 489–496.
Low neighbourhood size and high interpopulation differentiation in the endangered shrub Grevillea iaspicula McGill (Proteaceae.Crossref | GoogleScholarGoogle Scholar | 11520349PubMed |

Humphreys AM, Govaerts R, Ficinski SZ, Nic Lughadha E, Vorontsova MS (2019) Global dataset shows geography and life form predict modern plant extinction and rediscovery. Nature Ecology & Evolution 3, 1043–1047.
Global dataset shows geography and life form predict modern plant extinction and rediscovery.Crossref | GoogleScholarGoogle Scholar |

International Union for Conservation of Nature (2012). ‘IUCN Red List Categories and Criteria (ver. 3.1)’, 2nd edn. (IUCN: Gland, Switzerland; and Cambridge, UK)

Jarvis A, Williams K, Williams D, Guarino L, Caballero P, Mottram G (2005) Use of GIS for optimizing a collecting mission for a rare wild pepper (Capsicum flexuosum Sendtn.) in Paraguay. Genetic Resources and Crop Evolution 52, 671–682.
Use of GIS for optimizing a collecting mission for a rare wild pepper (Capsicum flexuosum Sendtn.) in Paraguay.Crossref | GoogleScholarGoogle Scholar |

Johnston RD, Lacey CJ (1983) Multi-stemmed trees in rainforest. Australian Journal of Botany 31, 189–195.
Multi-stemmed trees in rainforest.Crossref | GoogleScholarGoogle Scholar |

Kauffman JB (1991) Survival by sprouting following fire in tropical forests of the Eastern Amazon. Biotropica 23, 219–224.
Survival by sprouting following fire in tropical forests of the Eastern Amazon.Crossref | GoogleScholarGoogle Scholar |

Kearse M, Moir R, Wilson A, Stones-Havas S, Cheung M, Sturrock S, Buxton S, Cooper A, Markowitz S, Duran C, Thierer T, Ashton B, Meintjes P, Drummond A (2012) Geneious Basic: an integrated and extendable desktop software platform for the organization and analysis of sequence data. Bioinformatics 28, 1647–1649.
Geneious Basic: an integrated and extendable desktop software platform for the organization and analysis of sequence data.Crossref | GoogleScholarGoogle Scholar | 22543367PubMed |

Langdon JS, King GJ, Nock CJ (2019) DNA paternity testing indicates unexpectedly high levels of self-fertilisation in macadamia Tree Genetics & Genomes 15, 29
DNA paternity testing indicates unexpectedly high levels of self-fertilisation in macadamiaCrossref | GoogleScholarGoogle Scholar |

Leimu R, Mutikainen P, Koricheva J, Fischer M (2006) How general are positive relationships between plant population size, fitness and genetic variation? Journal of Ecology 94, 942–952.
How general are positive relationships between plant population size, fitness and genetic variation?Crossref | GoogleScholarGoogle Scholar |

Leonard SWJ, Bennett AF, Clarke MF (2014) Determinants of the occurrence of unburnt forest patches: Potential biotic refuges within a large, intense wildfire in south-eastern Australia. Forest Ecology and Management 314, 85–93.
Determinants of the occurrence of unburnt forest patches: Potential biotic refuges within a large, intense wildfire in south-eastern Australia.Crossref | GoogleScholarGoogle Scholar |

Maschinski J, Duquesnel J (2007) Successful reintroductions of the endangered long-lived Sargent’s cherry palm, Pseudophoenix sargentii, in the Florida Keys. Biological Conservation 134, 122–129.
Successful reintroductions of the endangered long-lived Sargent’s cherry palm, Pseudophoenix sargentii, in the Florida Keys.Crossref | GoogleScholarGoogle Scholar |

Maschinski J, Baggs JE, Sacchi CF (2004) Seedling recruitment and survival of an endangered limestone endemic in its natural habitat and experimental reintroduction sites. American Journal of Botany 91, 689–698.
Seedling recruitment and survival of an endangered limestone endemic in its natural habitat and experimental reintroduction sites.Crossref | GoogleScholarGoogle Scholar | 21653424PubMed |

Maschinski J, Baggs JE, Quintana‐Ascencio PF, Menges ES (2006) Using population viability analysis to predict the effects of climate change on the extinction risk of an endangered limestone endemic shrub, Arizona cliffrose. Conservation Biology 20, 218–228.
Using population viability analysis to predict the effects of climate change on the extinction risk of an endangered limestone endemic shrub, Arizona cliffrose.Crossref | GoogleScholarGoogle Scholar | 16909675PubMed |

Mast AR, Willis CL, Jones EH, Downs KM, Weston PH (2008) A smaller Macadamia from a more vagile tribe: inference of phylogenetic relationships, divergence times, and diaspore evolution in Macadamia and relatives (tribe Macadamieae; Proteaceae. American Journal of Botany 95, 843–870.
A smaller Macadamia from a more vagile tribe: inference of phylogenetic relationships, divergence times, and diaspore evolution in Macadamia and relatives (tribe Macadamieae; Proteaceae.Crossref | GoogleScholarGoogle Scholar | 21632410PubMed |

McKay JK, Christian CE, Harrison S, Rice KJ (2005) “How local is local?” – a review of practical and conceptual issues in the genetics of restoration. Restoration Ecology 13, 432–440.
“How local is local?” – a review of practical and conceptual issues in the genetics of restoration.Crossref | GoogleScholarGoogle Scholar |

Menges ES (2008) Restoration demography and genetics of plants: when is a translocation successful? Australian Journal of Botany 56, 187–196.
Restoration demography and genetics of plants: when is a translocation successful?Crossref | GoogleScholarGoogle Scholar |

Neal JM, Hardner CM, Gross CL (2010) Population demography and fecundity do not decline with habitat fragmentation in the rainforest tree Macadamia integrifolia (Proteaceae). Biological Conservation 143, 2591–2600.
Population demography and fecundity do not decline with habitat fragmentation in the rainforest tree Macadamia integrifolia (Proteaceae).Crossref | GoogleScholarGoogle Scholar |

Nock CJ, Elphinstone MS, Ablett G, Kawamata A, Hancock W, Hardner CM, King GJ (2014) Whole genome shotgun sequences for microsatellite discovery and application in cultivated and wild Macadamia (Proteaceae). Applications in Plant Sciences 2,
Whole genome shotgun sequences for microsatellite discovery and application in cultivated and wild Macadamia (Proteaceae).Crossref | GoogleScholarGoogle Scholar | 25202615PubMed |

O’Connor K, Powell M, Nock C, Shapcott A (2015) Crop to wild gene flow and genetic diversity in a vulnerable Macadamia (Proteaceae) species in New South Wales, Australia. Biological Conservation 191, 504–511.
Crop to wild gene flow and genetic diversity in a vulnerable Macadamia (Proteaceae) species in New South Wales, Australia.Crossref | GoogleScholarGoogle Scholar |

Pavlik BM (1996) Defining and measuring success. In ‘Restoring Diversity: Strategies for the Reintroduction of Endangered Plants’. (Eds DA Falk, CI Millar, M Olwell) pp. 127–155. (Island Press: Washington, DC, USA)

Peakall R, Smouse PE (2012) GenALEx 6.5: genetic analysis in Excel. Population genetic software for teaching and research-an update. Bioinformatics 28, 2537–2539.
GenALEx 6.5: genetic analysis in Excel. Population genetic software for teaching and research-an update.Crossref | GoogleScholarGoogle Scholar | 22820204PubMed |

Pierson JC, Coates DJ, Oostermeijer JGB, Beissinger SR, Bragg JG, Sunnucks P, Schumaker NH, Young AG (2016) Genetic factors in threatened species recovery plans on three continents. Frontiers in Ecology and the Environment 14, 433–440.
Genetic factors in threatened species recovery plans on three continents.Crossref | GoogleScholarGoogle Scholar |

Pisanu PC, Gross CL, Flood L (2009) Reproduction in wild populations of the threatened tree Macadamia tetraphylla: Interpopulation pollen enriches fecundity in a declining species. Biotropica 41, 391–398.
Reproduction in wild populations of the threatened tree Macadamia tetraphylla: Interpopulation pollen enriches fecundity in a declining species.Crossref | GoogleScholarGoogle Scholar |

Pitman AJ, Narisma GT, McAneney J (2007) The impact of climate change on the risk of forest and grassland fires in Australia. Climatic Change 84, 383–401.
The impact of climate change on the risk of forest and grassland fires in Australia.Crossref | GoogleScholarGoogle Scholar |

Powell M, Accad A, Shapcott A (2014) Where they are, why they are there, and where they are going: Using niche models to assess impacts of disturbance on the distribution of three endemic rare subtropical rainforest trees of Macadamia (Proteaceae) species. Australian Journal of Botany 62, 322–334.
Where they are, why they are there, and where they are going: Using niche models to assess impacts of disturbance on the distribution of three endemic rare subtropical rainforest trees of Macadamia (Proteaceae) species.Crossref | GoogleScholarGoogle Scholar |

Queensland Herbarium (2018) Metadata: Biodiversity status of 2017 remnant regional ecosystems - Queensland - version 11.0. Queensland Department of Environment and Science, Brisbane, Qld, Australia.

Queensland Herbarium (2019) Regional Ecosystem Description Database (REDD) (ver. 11.1). Available at https://www.qld.gov.au/environment/plants-animals/plants/ecosystems/descriptions/download [Verified 6 March 2021]

Ritchie AL, Krauss SL (2012) A genetic assessment of ecological restoration success in Banksia attenuata. Restoration Ecology 20, 441–449.
A genetic assessment of ecological restoration success in Banksia attenuata.Crossref | GoogleScholarGoogle Scholar |

Rossetto M, Kooyman RM (2005) The tension between dispersal and persistence regulates the current distribution of rare palaeo-endemic rain forest flora: a case study. Journal of Ecology 93, 906–917.
The tension between dispersal and persistence regulates the current distribution of rare palaeo-endemic rain forest flora: a case study.Crossref | GoogleScholarGoogle Scholar |

Rossetto M, Kooyman R, Sherwin W, Jones R (2008) Dispersal limitations, rather than bottlenecks or habitat specificity, can restrict the distribution of rare and endemic rainforest trees. American Journal of Botany 95, 321–329.
Dispersal limitations, rather than bottlenecks or habitat specificity, can restrict the distribution of rare and endemic rainforest trees.Crossref | GoogleScholarGoogle Scholar | 21632357PubMed |

Russell-Smith J, Stanton PJ, Whitehead PJ, Edwards A (2004) Rain forest invasion of eucalypt-dominated woodland savanna, Iron Range, north-eastern Australia: I. Successional processes. Journal of Biogeography 31, 1293–1303.
Rain forest invasion of eucalypt-dominated woodland savanna, Iron Range, north-eastern Australia: I. Successional processes.Crossref | GoogleScholarGoogle Scholar |

Schwartz MW (2003) Assessing population viability in long-lived plants. In ‘Population Viability in Plants: Conservation, Management, and Modeling of Rare Plants’. (Eds CA Brigham, MW Schwartz) pp. 239–266. (Springer)

Shapcott A (2019) Threatened plant translocation case study: Macadamia jansenii (Bulburin nut), Proteaceae. Australasian Plant Conservation 28, 21–23.

Shapcott A, Powell M (2011) Demographic structure, genetic diversity and habitat distribution of the endangered, Australian rainforest tree Macadamia jansenii help facilitate an introduction program. Australian Journal of Botany 59, 215–225.
Demographic structure, genetic diversity and habitat distribution of the endangered, Australian rainforest tree Macadamia jansenii help facilitate an introduction program.Crossref | GoogleScholarGoogle Scholar |

Shapcott A, Olsen M, Lamont R (2009) The importance of genetic considerations for planning translocations of the rare coastal heath species Boronia rivularis (Rutaceae) in Queensland. Ecological Restoration 27, 47–57.
The importance of genetic considerations for planning translocations of the rare coastal heath species Boronia rivularis (Rutaceae) in Queensland.Crossref | GoogleScholarGoogle Scholar |

Shapcott A, James H, Simmons L, Shimizu Y, Gardiner L, Rabehevitra D, Letsara R, Cable S, Dransfield J, Baker WJ, Rakotoarinivo M (2020) Population modelling and genetics of a critically endangered Madagascan palm Tahina spectabilis. Ecology and Evolution 10, 3120–3137.
Population modelling and genetics of a critically endangered Madagascan palm Tahina spectabilis.Crossref | GoogleScholarGoogle Scholar | 32211182PubMed |

Shimizu Y (2015) Effects of climate change on the endangered rainforest shrub Triunia robusta (Proteaceae), endemic to Southeast Queensland, Australia. PhD thesis, University of the Sunshine Coast, Australia.

Shimizu-Kimura Y, Burnett S, Shapcott A (2017) Demographic, dispersal, predation and genetic data reveal the potential vulnerability of an endangered rainforest shrub, Triunia robusta (Proteaceae). Australian Journal of Botany 65, 270–282.
Demographic, dispersal, predation and genetic data reveal the potential vulnerability of an endangered rainforest shrub, Triunia robusta (Proteaceae).Crossref | GoogleScholarGoogle Scholar |

Silcock JL, Simmons CL, Monks L, Dillon R, Reiter N, Jusaitis M, Vesk PA, Byrne M, Coates DJ (2019) Threatened plant translocation in Australia: a review. Biological Conservation 236, 211–222.
Threatened plant translocation in Australia: a review.Crossref | GoogleScholarGoogle Scholar |

Simmons CL, Auld TD, Hutton I, Baker WJ, Shapcott A (2012) Will climate change, genetic and demographic variation or rat predation pose the greatest risk for persistence of an altitudinally distributed island endemic? Biology 1, 736–765.
Will climate change, genetic and demographic variation or rat predation pose the greatest risk for persistence of an altitudinally distributed island endemic?Crossref | GoogleScholarGoogle Scholar | 24832517PubMed |

Thavornkanlapachai R, Ladd PG, Byrne M (2018) Population density and size influence pollen dispersal pattern and mating system of the predominantly outcrossed Banksia nivea (Proteaceae) in a threatened ecological community. Biological Journal of the Linnean Society. Linnean Society of London 124, 492–503.
Population density and size influence pollen dispersal pattern and mating system of the predominantly outcrossed Banksia nivea (Proteaceae) in a threatened ecological community.Crossref | GoogleScholarGoogle Scholar |

Trueman SJ (2013) The reproductive biology of macadamia. Scientia Horticulturae 150, 354–359.
The reproductive biology of macadamia.Crossref | GoogleScholarGoogle Scholar |

Uhl C, Kauffman JB (1990) Deforestation, fire susceptibility, and potential tree responses to fire in the eastern Amazon. Ecology 71, 437–449.
Deforestation, fire susceptibility, and potential tree responses to fire in the eastern Amazon.Crossref | GoogleScholarGoogle Scholar |

Walker BA, Whelan RJ (1991) Can andromonoecy explain low fruit: flower ratios in the Proteaceae? Biological Journal of the Linnean Society. Linnean Society of London 44, 41–46.
Can andromonoecy explain low fruit: flower ratios in the Proteaceae?Crossref | GoogleScholarGoogle Scholar |

Weber LC, Vanderwal J, Schmidt S, McDonald WJF, Shoo LP (2014) Patterns of rain forest plant endemism in subtropical Australia relate to stable mesic refugia and species dispersal limitations. Journal of Biogeography 41, 222–238.
Patterns of rain forest plant endemism in subtropical Australia relate to stable mesic refugia and species dispersal limitations.Crossref | GoogleScholarGoogle Scholar |

Weeks AR, Sgro CM, Young AG, Frankham R, Mitchell MJ, Miller KA, Byrne M, Coates DJ, Eldridge MDB, Sunnucks P, Breed MF, James EA, Hoffman AA (2011) Assessing the benefits and risks of translocations in changing environments: A genetic perspective. Evolutionary Applications 4, 709–725.
Assessing the benefits and risks of translocations in changing environments: A genetic perspective.Crossref | GoogleScholarGoogle Scholar | 22287981PubMed |

Williams PR (2000) Fire-stimulated rainforest seedling recruitment and vegetative regeneration in a densely grassed wet sclerophyll forest of north-eastern Australia. Australian Journal of Botany 48, 651–658.
Fire-stimulated rainforest seedling recruitment and vegetative regeneration in a densely grassed wet sclerophyll forest of north-eastern Australia.Crossref | GoogleScholarGoogle Scholar |

Zeigler SL, Che-Castaldo JP, Neel MC (2013) Actual and potential use of population viability analyses in recovery of plant species listed under the US Endangered Species Act. Conservation Biology 27, 1265–1278.
Actual and potential use of population viability analyses in recovery of plant species listed under the US Endangered Species Act.Crossref | GoogleScholarGoogle Scholar | 24033732PubMed |

Zimmer HC, Auld TD, Hughes L, Offord CA, Baker PJ (2015) Fuel flammability and fire responses of juvenile canopy species in a temperate rainforest ecosystem. International Journal of Wildland Fire 24, 349–360.
Fuel flammability and fire responses of juvenile canopy species in a temperate rainforest ecosystem.Crossref | GoogleScholarGoogle Scholar |

Zion Market Research (2018) Macadamia market by application (food industry and cosmetic industry): global industry perspective, comprehensive analysis and forecast, 2018–2024. Available at https://www.zionmarketresearch.com/report/macadamia-market [Verified 25 March 2021]