Endemism centres, refugia and botanical collection density in Brazilian Amazonia View Full Text


Ontology type: schema:ScholarlyArticle     


Article Info

DATE

1990-06

AUTHORS

Bruce W. Nelson, Carlos A. C. Ferreira, Marlene F. da Silva, Maria L. Kawasaki

ABSTRACT

HERBARIUM specimen collecting in the Brazilian Amazon has been concentrated in widely scattered collecting centres associated with some proposed centres of substrate-independent endemism1–3, suggesting that these may be sampling artefacts. Furthermore, many Amazonian plant species are uncommon, so the more intensely a local flora is studied, the more it will seem to be unique. This weakens the botanical argument for a dry Pleistocene Amazon4 and the associated forest refuge theory for the origin of Amazonian plant diversity1–3, because modern endemism centres are used as evidence to define past isolated forest patches—sites of allopatric speciation in a supposedly dry climate (Fig. 1). With a detailed map of botanical collection density, it is possible to recognize the true concentrations of plant endemism, which is important for selecting priority conservation areas to guarantee preservation of unique species. More... »

PAGES

714-716

References to SciGraph publications

  • 1989-07. Ice-age Amazon revisited in NATURE
  • Journal

    TITLE

    Nature

    ISSUE

    6277

    VOLUME

    345

    Identifiers

    URI

    http://scigraph.springernature.com/pub.10.1038/345714a0

    DOI

    http://dx.doi.org/10.1038/345714a0

    DIMENSIONS

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