The Permo-Triassic mass extinction has been resolved into two closely spaced crises that both saw enormous extinction losses. However, food web modelling suggests they were not ecologically equivalent, only the second destabilised communities.
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Was extinction of New Zealand's avian megafauna an unavoidable consequence of human arrival?
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European Commission, Joint Research Centre (JRC), Geel, Belgium.
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Centro de Investigación de La Biodiversidad y Cambio Climático (BioCamb), y Facultad de Ciencias de Medio Ambiente, Universidad Tecnológica Indoamérica, Machala y Sabanilla, Quito, Ecuador.
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