| Why do flowers vary? The functional ecology of variation in flower size and form within natural plant populations C Galen Bioscience 49 (8), 631-640, 1999 | 418 | 1999 |
| Measuring pollinator‐mediated selection on morphometric floral traits: bumblebees and the alpine sky pilot, Polemonium viscosum C Galen Evolution 43 (4), 882-890, 1989 | 405 | 1989 |
| Functional mismatch in a bumble bee pollination mutualism under climate change NE Miller-Struttmann, JC Geib, JD Franklin, PG Kevan, RM Holdo, ... Science 349 (6255), 1541-1544, 2015 | 301 | 2015 |
| Drought stress, plant water status, and floral trait expression in fireweed, Epilobium angustifolium (Onagraceae) AB Carroll, SG Pallardy, C Galen American Journal of Botany 88 (3), 438-446, 2001 | 286 | 2001 |
| DOWN THE TUBE: POLLINATORS, PREDATORS, AND THE EVOLUTION OF FLOWER SHAPE IN THE ALPINE SKYPILOT, POLEMONIUM VISCOSUM C Galen, J Cuba Evolution 55 (10), 1963-1971, 2001 | 271 | 2001 |
| High and Dry: Drought Stress, Sex‐Allocation Trade‐offs, and Selection on Flower Size in the Alpine Wildflower Polemonium viscosum (Polemoniaceae) C Galen The American Naturalist 156 (1), 72-83, 2000 | 258 | 2000 |
| Bumble bee pollination and floral morphology: factors influencing pollen dispersal in the alpine sky pilot, Polemonium viscosum (Polemoniaceae) C Galen, ML Stanton American Journal of Botany 76 (3), 419-426, 1989 | 236 | 1989 |
| RATES OF FLORAL EVOLUTION: ADAPTATION TO BUMBLEBEE POLLINATION IN AN ALPINE WILDFLOWER, POLEMONIUM VISCOSUM C Galen Evolution 50 (1), 120-125, 1996 | 220 | 1996 |
| Are flowers physiological sinks or faucets? Costs and correlates of water use by flowers of Polemonium viscosum C Galen, RA Sherry, AB Carroll Oecologia 118, 461-470, 1999 | 218 | 1999 |
| Bumble bee behavior and selection on flower size in the sky pilot, Polemonium viscosum C Galen, MEA Newport Oecologia 74, 20-23, 1987 | 217 | 1987 |
| Responses of snowbed plant species to changes in growing‐season length C Galen, ML Stanton Ecology 76 (5), 1546-1557, 1995 | 216 | 1995 |
| Regulation of seed‐set in Polemonium viscosum: floral scents, pollination, and resources C Galen Ecology 66 (3), 792-797, 1985 | 206 | 1985 |
| Interspecific pollen transfer as a mechanism of competition: consequences of foreign pollen contamination for seed set in the alpine wildflower, Polemonium viscosum C Galen, T Gregory Oecologia 81, 120-123, 1989 | 205 | 1989 |
| Consequences of emergence phenology for reproductive success in Ranunculus adoneus (Ranunculaceae) C Galen, ML Stanton American Journal of Botany 78 (7), 978-988, 1991 | 202 | 1991 |
| POLLINATION IN FLORAL SCENT MORPHS OF POLEMONIUM VISCOSUM: A MECHANISM FOR DISRUPTIVE SELECTION ON FLOWER SIZE C Galen, KA Zimmer, ME Newport Evolution 41 (3), 599-606, 1987 | 199 | 1987 |
| Frequency-dependent selection and adaptive surfaces for floral character combinations: the pollination of Polemonium viscosum JE Cresswell, C Galen The American Naturalist 138 (6), 1342-1353, 1991 | 197 | 1991 |
| Changes in vegetation and soil fertility along a predictable snowmelt gradient in the Mosquito Range, Colorado, USA ML Stanton, M Rejmanek, C Galen Arctic and Alpine Research 26 (4), 364-374, 1994 | 191 | 1994 |
| ECOTYPIC DIVERGENCE IN ALPINE POLEMONIUM VISCOSUM: GENETIC STRUCTURE, QUANTITATIVE VARIATION, AND LOCAL ADAPTATION C Galen, JS Shore, H Deyoe Evolution 45 (5), 1218-1228, 1991 | 179 | 1991 |
| The effects of nectar level and flower development on pollen carry-over in inflorescences of fireweed (Epilobium angustifolium) (Onagraceae) C Galen, RC Plowright Canadian Journal of Botany 63 (3), 488-491, 1985 | 168 | 1985 |
| Carpels as leaves: meeting the carbon cost of reproduction in an alpine buttercup C Galen, TE Dawson, ML Stanton Oecologia 95, 187-193, 1993 | 162 | 1993 |