1986 IUCN red list of threatened animals

Minimum Population Sizes for Species Conservation

Mark L. Shaffer · BioScience · 1981 · 2K citations

Life Sciences, Biology, Conservation Biology +16

Assessing Extinction Threats: Toward a Reevaluation of IUCN Threatened Species Categories

Georgina M. Mace, Russell Lande · Conservation Biology · 1991 · 890 citations · Full text

Natural Resources, Biodiversity Conservation, Ecology +13

Seven forms of rarity and their frequency in the flora of the British Isles

Deborah Rabinowitz, Sara Cairns, TM Dillon · 1986 · 520 citations

Life Sciences, Biology, Botany +8

Birds to watch: the ICBP world checklist of threatened birds

Choice Reviews Online · 1989 · 153 citations

Life Sciences, Conservation Biology, Zoology +12

Threatened swallowtail butterflies of the world

Biological Conservation · 1986 · 140 citations

Life Sciences, Entomology, Zoology +12