Glacial refugia and migration routes of the Neotropical genus Trizeuxis (Orchidaceae)

• Autorzy: Kolanowska M.
• Języki publikacji: EN

Abstrakty

EN

The morphology and anatomy of the monotypic genus Trizeuxis make this taxon almost impossible to recognize in fossil material and hereby difficult object of historical geographic studies. To estimate the distribution of potential refugia during the last glacial maximum and migration routes for Trizeuxis the ecological niche modeling was performed. The potential niche modeling was done using maximum entropy method implemented in Maxent application based on the species presence-only observations. As input data climatic variables and the digital elevation model were used. Two models of suitable glacial habitats distribution were prepared – for the studied species and for its host. The compiled map of the suitable habitats distribution of T. falcata and P. guajava during the last glacial maximum (LGM) indicate two possible refugia for the studied orchid genus. The first one was located in the Madre de Dios region and the other one in the Mosquito Coast. The models suggest the existence of two migration routes of Trizeuxis species. The results indicate that the ecological niche modeling (ENM) is a useful tool for analyzing not only the possible past distribution of the species, but may be also applied to determine the migration routes of the organisms not found in the fossil material.

Słowa kluczowe

EN

glacial refugium; migration route; Neotropical genus; Trizeuxis; Orchidaceae; habitat; phorophyte; morphology; anatomy

• Wydawca: -
• Czasopismo: Acta Societatis Botanicorum Poloniae
• Rocznik: 2013
• Tom: 82
• Numer: 3
• Opis fizyczny: p.225-230,fig.,ref.

Twórcy

autor

Kolanowska M.

• Department of Plant Taxonomy and Nature Conservation, University of Gdansk, Wita Stwosza 59, 80-308 Gdansk, Poland

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Identyfikatory

DOI

10.5586/asbp.2013.024