Puzzling out the reproductive biology of the endangered cat’s head rockrose (Helianthemum caput-felis, Cistaceae)

R: A Language and Environment for Statistical Computing

R Core Team · 2000 · 353K citations · Full text

Natural Sciences, Computer Science, Statistical Computing +10

Very high resolution interpolated climate surfaces for global land areas

Robert J. Hijmans, Susan E. Cameron, Juan L. Parra et al. · International Journal of Climatology · 2005 · 20.1K citations · Full text

Natural Sciences, Earth Sciences, Meteorology +17

How many flowering plants are pollinated by animals?

Jeff Ollerton, Rachael Winfree, Sam Tarrant · Oikos · 2011 · 3.8K citations

Agriculture, Ecology, Plant Sciences +13

POLLEN-OVULE RATIOS: A CONSERVATIVE INDICATOR OF BREEDING SYSTEMS IN FLOWERING PLANTS

Robert William Cruden · Evolution · 1977 · 1.5K citations · Full text

Life Sciences, Plant Biology, Plant Sciences +13

Evaluating Approaches to the Conservation of Rare and Endangered Plants

Douglas W. Schemske, Brian C. Husband, Mary Ruckelshaus et al. · Ecology · 1994 · 1.1K citations

Natural Resources, Biodiversity Conservation, Conservation Biology +10