Taxonomy
Lastreopsis subsericea
Synonyms
Aspidium subsericeum Mett.Red List Status -
Vulnerable (VU) , assessed in 28/11/2018Lastreopsis subsericea is an endemic terrestrial fern of New Caledonia, which has a scattered distribution between the south and the north east of Grande Terre. It occurs in dense humid forest on volcano-sedimentary and ultramafic soil between 330 and 1,200 m asl. Known from seven localities, its extent of occurrence (EOO) and area of occupancy (AOO) are 36 and 3,174 km², respectively. The main threat is posed by invasive species (feral pigs (Sus scrofa)) causing habitat degradation. Therefore, L. subsericea is listed as Vulnerable (VU) under criteria B1ab(iii)+B2ab(iii) with a decline of the quality of habitat.
Geographical area
Lastreopsis subsericea is endemic to New Caledonia where it has a discattered distribution across the GrandeTerre.
Population
Population size is unknown. However field's prospections indicate a species that is not common.
Habitat
Lastreopsis subsericea is a terrestrial fern which occurs in dense humid forest on ultramafic and volcano-sedimentary rocks from 330 to 1,200 m asl.
Threats
The main threats identified are invasive species (feral pigs (Sus scrofa)) which contribute to the decline of habitat quality.
Conservation
Lastreopsis subsericea is not protected by legislation in New caledonia but it is present in four protected areas: Haute Dumbéa, Aoupinié, la Dumbéa and Vallée de la Thy.
Bibliography
Gardner J.J.S., Perrie L.R., Shepherd L., Nagalingum N.S. 2017. Taxonomic Placement of Unassigned Species of Lastreopsid Ferns (Dryopteridaceae) Using Phylogeny. Systematic Botany,(43(2)) , p.385-391.
Munzinger J., Morat Ph., Jaffré T., Gâteblé G., Pillon Y., Rouhan G., Bruy, D., Veillon J.-M., & M. Chalopin. 2019. FLORICAL: Checklist of the vascular indigenous flora of New Caledonia..
Endemia.nc 2016. Faune et Flore de Nouvelle-Calédonie.
Experts
Assessor(s): Amice, R., Butin, J., Garnier, D., Veillon, J., Fleurot, D., Laudereau, C., Suprin, B., Mandaoué, L.
Reviewer(s): Tanguy, V.
Contributor(s): Perrie, L., Rouhan, G.
Facilitator(s): Warimavute, G., Meyer, S.