megadiverse

High rates of conversion [of natural habitats to agriculture] have clear implications for biodiversity loss. Of special concern are rates of conversion in the so-called megadiverse states: areas identified as being of high species endemism.

1994, David Pearce, Dominic Moran, “Saving Biodiversity: An Overview of the Causal Factors”, in The Economic Value of Biodiversity, London: Earthscan Publications, published 1997, →ISBN, page 19

[…] Australia is the only developed nation, with the exception of Mexico, among the dozen or so regions which have been recognized as ‘megadiverse’, that is, having extensive total biodiversity.

2004, Natalie P. Stoianoff, Tom Fox, “Managing Access to Australia’s Biological Resources – Issues in Developing a National Approach”, in Natalie P. Stoianoff, editor, Accessing Biological Resources: Complying with the Convention on Biological Diversity (International Environmental Law and Policy Series), The Hague; London: Kluwer Law International, →ISBN, page 93

Pioneering global cross-mappings of the distributions of biodiversity and linguistic diversity (taken as a proxy for cultural diversity as a whole) provided independent support for this conclusion, revealing significant geographic overlaps between the two diversities, especially in the tropics, and a strong coincidence between biologically and linguistically megadiverse countries[…].

2007, Luisa Maffi, “Biocultural Diversity and Sustainability”, in Jules Pretty et al., editors, The SAGE Handbook of Environment and Society, London; Thousand Oaks, Calif.: SAGE Publications, →ISBN, page 268, column 2

In megadiverse regions such as the Andes-Amazon, managing these matters and developing wise programs for conserving natural resources is a huge undertaking, requiring the efforts of an array of individuals with widely diverse expertise.

2010, Fernando Cornejo, John Janovec, “Introduction”, in Seeds of Amazonian Plants (Princeton Field Guides), Princeton, N.J.; Woodstock, Oxfordshire: Princeton University Press, →ISBN, page xv, column 1

This method is applied to the case of New Caledonia, a megadiverse island with all locations equally rich in microendemic species and where phylogenetic diversity is especially helpful to determine conservation priorities among sites.

2016, Roseli Pellens, Philippe Grandcolas, “Phylogenetics and Conservation Biology: Drawing a Path into the Diversity of Life”, in Roseli Pellens, Philippe Grandcolas, editors, Biodiversity Conservation and Phylogenetic Systematics: Preserving Our Evolutionary Heritage in an Extinction Crisis (Topics in Biodiversity and Conservation; 14), Cham, Switzerland: Springer Nature, →DOI, →ISBN, →ISSN, page 9