Bouteloua bracteata
(McVaugh) Columbus
Pays · région · aire protégée · écorégion · biome
Graphe en cours d’indexation
Calcul du tissu écologique de Bouteloua bracteata.
Le graphe apparaîtra automatiquement dès que le calcul est terminé (rafraîchissement toutes les 5s).
Liste rouge IUCN
VU · Vulnérablecritères B1ab(iii)?Inconnue- Évaluation
- 2014 · v3.1
- Altitude
- 450 – 800 m
- Profondeur
- – m
État de la populationTexte officiel évaluation IUCNExpert
This species is only known from three localities. The type locality where it was collected in 1958, a locality interpreted as some 25 km away, where it was collected in 2001, and a locality near La Huacana, where it was collected in 2003 (specimen data). The size and trends of the population are unknown.
Menaces identifiées(2 menaces classées CMP-IUCN)
2_1_2Small-holder farmingUnknownUnknownOngoing2_3_2Small-holder grazing, ranching or farmingUnknownUnknownOngoing
Description complète des menacesTexte détaillé évaluation IUCNExpert
Expanding agriculture and cattle farming are the main threat to the herbaceous layers of the region (Valero et al. 2001). This grass was collected in areas of medium human footprint but satellite imagery shows intensive cultivation in some parts of the area. Collection by roadsides and secondary vegetation suggest some ability to regenerate and persist in disturbed vegetation, however, habitat loss and grazing are suspected to have some impact on the population. Dry forests once occupied 70% of the state of Michoacán but now only 10% of the remaining vegetation is considered to be undisturbed (Valero et al. 2001).
Habitats préférentiels (classification IUCN)
1_5Forest - Subtropical/Tropical Dry★
Mesures de conservation recommandéesStratégies de conservation IUCNExpert
This species is not known to have been collected within any protected areas. The Balsas dry forest ecoregion is an important centre of endemism for several plant genera (Valejo et al. 2001). It does not appear to be grown ex situ and seeds should be collected for that purpose as well as for germplasm conservation. Parts of the nuclear DNA have been sequenced for phylogenetic analysis (Siqueiros 2007). Field surveys should be conducted at the three sites of collection and in potentially suitable surrounding habitats to determine the current range and population size of this species. The biology and ecology should also be investigated.
Actions de conservation (4)Conservation Actions Classification Scheme — IUCNExpert
1_1Site/area protection2_1Site/area management3_4_1Captive breeding/artificial propagation3_4_2Genome resource bank
Stress écologiques (4)Stresses Classification — IUCNExpert
1_1Ecosystem conversion1_1Ecosystem conversion1_2Ecosystem degradation1_2Ecosystem degradation
Usage & commerce (1)Use & Trade — IUCNExpert
2Food - animalsubsistance
Priorités de recherche (4)Research Needed Classification — IUCNExpert
1_2Population size, distribution & trends1_3Life history & ecology3_1Population trends3_4Habitat trends
Niche IUCN globaleRealms · Systems · LMEs · Growth forms · FAOs — biogéographie IUCNExpert
Royaumes biogéographiques
Neotropical
Systèmes (terrestre/eau douce/marin)
Terrestrial
Formes de croissance
AnnualGraminoid
Références bibliographiques (5)Sources scientifiques de l'évaluation IUCNExpert
- IUCN. 2014. The IUCN Red List of Threatened Species. Version 2014.1. Available at: <a href="www.iucnredlist.org">www.iucnredlist.org</a>. (Accessed: 12 June 2014).
- Siqueiros, E. 2007. Culm anatomy of <i>Bouteloua</i> and relatives (Gramineae: Chloridoideae: Boutelouinae). <i>Acta Botanica Mexicana</i> 78: 39-59.
- Valero, A., Schipper, J. and Allnutt, T. 2001. Southern North America: Southern Mexico - Neotropic (NT0205). WildFinder Terrestrial Ecoregions. Available at: <a href="http://www.worldwildlife.org/science/wildfinder/profiles/nt0205.html">http://www.worldwildlife.org/science/wildfinder/profiles/nt0205.html</a>.
- Columbus, J.T., Kinney, M.S., Siqueiros Delgado, M.E. and Porter, J.M. 2000. Phylogenetics of <i>Bouteluoa</i> and relatives (Graminae: Chloridoideae): cladistic parsimony analysis of internal transcribed spacer (NrDNA) and trn L-F (cp DNA) sequences. In: S.W.L. Jacobs and J. Everett (eds), <i>Grasses: Systematics and Evolution</i>, pp. CSIRO. Melbourne.
- McVaugh, R. 1983. <i>Flora Novo-Galiciana: a descriptive account of the vascular plants of western Mexico. Volume 14. Gramineae</i>. University of Michigan Press, Ann Arbor, Michigan.
Évaluateurs & contributeurs (2)Personnes ayant contribué à l'évaluation IUCNExpert
assessor
Romand-Monnier, F.
evaluator
Hilton-Taylor, C.
Romand-Monnier, F. 2014. Opizia bracteata. The IUCN Red List of Threatened Species 2014: e.T22486176A22488386. Accessed on 05 May 2026.
Distribution mondiale
Calcul de la distribution GBIF· ~10–60 s
Phénologie
Calcul du calendrier d'apparition· ~5–30 s
Consulter sur les bases externes
Note nomenclaturale & synonymesDétails taxonomiques + synonymes CoLExpert
Note nomenclaturale
TAXREF v18 — INPN/MNHNSynonymes (1)— redirigent vers cette page
- Opizia bracteataMcVaugh
Sources : Catalogue of Life Cross-References (synonymes) · TAXREF v18 INPN/MNHN (commentaires FR).