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Published in: Biodiversity and Conservation 1/2022

05-11-2021 | Original Paper

Too little, too late? Conservation exigencies for Borneo inferred from biogeographic considerations of its endemic plant genera against intense landscape modifications

Authors: Louise Neo, Hugh T. W. Tan, K. M. Wong

Published in: Biodiversity and Conservation | Issue 1/2022

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Abstract

Natural habitats remain on the decline worldwide, while extinction risks have not yet been formally assessed for the majority of plant species. This is of pressing concern in especially biodiverse regions where there are hotspots of species richness and endemism which are also under intense development. Borneo is the largest land mass of the Sundaland biodiversity hotspot and has rich and unique biodiversity. About one-third of Borneo’s plant species are endemic and known from nowhere else in the world. Conservation exigencies are examined for a subset of these species which are of its 65 endemic genera. Preliminary conservation assessments are made under the IUCN Red List Criterion B. Areas of remaining forest cover, which could be prioritised to protect as many species of endemic genera as possible, are highlighted and examined against existing protected areas (PAs). More than two-thirds of the species of endemic genera are assessed as Endangered or Critically Endangered, and although existing PAs account for about the same number of species, they cover only a small proportion of individual species distributions. As large-scale population extinctions are the forerunner of species extinctions, this is of deep concern. Hotspots of species richness are indicated in forests at low- to mid-elevation, especially in northwest Borneo, but these areas are now mostly in logged or severely logged forests outside of existing PAs. The distributions and species richness patterns of the endemic genera highlight the conservation exigencies for lowland forest habitats in Borneo, which additional remedial conservation measures must now heed.

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Appendix
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Metadata
Title
Too little, too late? Conservation exigencies for Borneo inferred from biogeographic considerations of its endemic plant genera against intense landscape modifications
Authors
Louise Neo
Hugh T. W. Tan
K. M. Wong
Publication date
05-11-2021
Publisher
Springer Netherlands
Published in
Biodiversity and Conservation / Issue 1/2022
Print ISSN: 0960-3115
Electronic ISSN: 1572-9710
DOI
https://doi.org/10.1007/s10531-021-02320-6

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