Ontologia

Macrozamia crassifolia

P.I.Forst. & D.L.Jones

VULR Monde (IUCN)
  1. Plante
  2. Tracheophyta
  3. Cycadopsida
  4. Cycadales
  5. Zamiaceae
Pays · région · aire protégée · écorégion · biome

Graphe en cours d’indexation

Calcul du tissu écologique de Macrozamia crassifolia.

Le graphe apparaîtra automatiquement dès que le calcul est terminé (rafraîchissement toutes les 5s).

Liste rouge IUCN

VU · Vulnérablecritères B1ab(iii,v)↘Décroissante
Évaluation complète
Évaluation
2022 · v3.1
Altitude
340 – 420 m
Profondeur
– m
État de la populationExpert
This species is locally common, with strong seedling recruitment. There are at least ten subpopulations. No approximate population size data is available.

Menaces identifiées(4 menaces classées CMP-IUCN)

  • 12_1
    Other threat
    UnknownUnknownOngoing
  • 2_2_2
    Agro-industry plantations
    UnknownUnknownOngoing
  • 5_2_1
    Intentional use (species is the target)
    UnknownUnknownUnknown
  • 7_1_3
    Trend Unknown/Unrecorded
    UnknownUnknownUnknown
Description complète des menacesExpert
All plants are on private land and occur within two restricted areas. The main identified threats to Macrozamia crassifolia are loss or damage through timber harvesting in state forests; degradation of subpopulations from inappropriate fire regimes, which kill surface seed and young seedlings; failure of the insect pollination mutualism; and its potential vulnerability to illegal collection.

Habitats préférentiels (classification IUCN)

  • 1_5Forest - Subtropical/Tropical Dry
  • 2_1Savanna - Dry
Mesures de conservation recommandéesExpert
This species is listed in Appendix II of the CITES Appendices. Identification of suitable sites for the formal protection of this species is needed. An education and awareness programme as well as the long-term monitoring of subpopulations will support the conservation of this species.
Actions de conservation (2)Expert
  • 1_1Site/area protection
  • 4_3Awareness & communications
Stress écologiques (6)Expert
  • 1_1Ecosystem conversion
  • 1_3Indirect ecosystem effects
  • 2_2Species disturbance
  • 2_3_4Loss of pollinator
  • 2_3_6Skewed sex ratios
  • 2_3_7Reduced reproductive success
Priorités de recherche (3)Expert
  • 1_2Population size, distribution & trends
  • 1_6Actions
  • 3_1Population trends
Niche IUCN globaleExpert

Royaumes biogéographiques

Australasian

Systèmes (terrestre/eau douce/marin)

Terrestrial

Formes de croissance

CycadShrub - small
Références bibliographiques (9)Expert
  1. IUCN. 2023. The IUCN Red List of Threatened Species. Version 2023-1. Available at: <a href="www.iucnredlist.org">www.iucnredlist.org</a>. (Accessed: 07 December 2023).
  2. IUCN. 2022. The IUCN Red List of Threatened Species. Version 2022-1. Available at: <a href="www.iucnredlist.org">www.iucnredlist.org</a>. (Accessed: 21 July 2022).
  3. 2008. Approved conservation advice for <i>Macrozamia crassifolia</i>. Department of the Environment and Energy, Austrlain Government.
  4. Donaldson, J.S. (ed.). 2003. <i>Cycads. Status Survey and Conservation Action Plan</i>. IUCN/SSC Cycad Specialist Group. IUCN, Gland, Switzerland and Cambridge, UK.
  5. Whitelock, L.M. 2002. <i>The Cycads</i>. Timber Press, Portland, Oregon.
  6. Hill, K. and Osborne, R. 2001. <i>Cycads of Australia</i>.
  7. Hill, K.D. and Stevenson, D.W. 1998-2006. The Cycad Pages. Available at: <a href="http://plantnet.rbgsyd.gov.au/PlantNet/cycad/">http://plantnet.rbgsyd.gov.au/PlantNet/cycad/</a>.
  8. Jones, D.L. and Forster, P.I. 1994. Seven new species of <i>Macrozamia</i> section <i>Parazamia</i> (Miq.) Miq. (Zamiaceae section <i>Parazamia</i>) from Queensland. <i>Austrobaileya</i> 4(2): 269-288.
  9. Jones, D.L. 1993. <i>Cycads of the World</i>. Reed, New Holland, Frenchs Forest, N.S.W., Australia.
Évaluateurs & contributeurs (3)Expert
assessor
Bösenberg, J.D.
contributor
Forster, P.
evaluator
Donaldson, J.S.
⚠ 1 erratum publié après l'évaluation.

Bösenberg, J.D. 2022. Macrozamia crassifolia (errata version published in 2023). The IUCN Red List of Threatened Species 2022: e.T41962A243389338. Accessed on 05 May 2026.

Répartition mondiale (heatmap GBIF)Construction en cours

0 obs · 0 cellules
Construction par partitions temporelles GBIF0%

Source : GBIF — observations agrégées par hexagones 0.2° × 0.2° (~22km). Filtre qualité : précision coordonnée < 10 km. Coloration quantile (q50/70/90/99). Fond carte : OpenFreeMap · © OpenStreetMap.

Distribution mondiale

Calcul de la distribution GBIF· ~10–60 s

Phénologie

Calcul du calendrier d'apparition· ~5–30 s

Consulter sur les bases externes

Observations & statuts

GBIFiNaturalistEOLIUCN

Cartographie

GBIF Maps

Bibliographie

BHLOpenAlex