High and Dry: Drought Stress, Sex‐Allocation Trade‐offs, and Selection on Flower Size in the Alpine Wildflower Polemonium viscosum (Polemoniaceae)
- C. Galen
- Biology, MedicineAmerican Naturalist
- 1 July 2000
It is concluded that under drought the demographic cost of producing large flowers is gender dependent, such that viability selection favors either small‐flowered plants with female‐biased reproduction or larger‐flowers plants with male‐ biased reproduction.
The functional ecology of variation in flower size and form within natural plant populations
- C. Galen
- Environmental Science
- 2007
over their lifetimes he remarkable diversity of flowers has a profound impact on humankind. Flower diversity inspires masterpieces of art and literature, fuels highway beautification schemes, gives…
It Never Rains but then it Pours: The Diverse Effects of Water on Flower Integrity and Function
- C. Galen
- Environmental Science
- 2005
Are flowers physiological sinks or faucets? Costs and correlates of water use by flowers of Polemonium viscosum
- C. Galen, R. A. Sherry, A. B. Carroll
- Biology, MedicineOecologia
- 1 March 1999
Findings suggest that more water may be required to maintain turgor in large corollas in part because their tissues have lower cell wall densities, which could exacerbate the cost of reproduction under dry conditions.
Drought stress, plant water status, and floral trait expression in fireweed, Epilobium angustifolium (Onagraceae).
- A. B. Carroll, S. Pallardy, C. Galen
- Biology, MedicineAmerican-Eurasian journal of botany
- 1 March 2001
Traits influencing floral attractiveness to pollinators in E. angustifolium vary with plant water status, such that pollinator-mediated selection could indirectly target physiological or biochemical controls on ψ(l), according to the best-fit path models.
MEASURING POLLINATOR‐MEDIATED SELECTION ON MORPHOMETRIC FLORAL TRAITS: BUMBLEBEES AND THE ALPINE SKY PILOT, POLEMONIUM VISCOSUM
- C. Galen
- Environmental ScienceEvolution; international journal of organic…
- 1 July 1989
The hypothesis that pollinator‐mediated selection can bring about changes in floral form, and can explain shifts in floral morphology of P. viscosum along natural habitat gradients, is supported.
Interspecific pollen transfer as a mechanism of competition: Consequences of foreign pollen contamination for seed set in the alpine wildflower, Polemonium viscosum
- C. Galen, Teresa Gregory
- Environmental ScienceOecologia
- 1 October 1989
It is suggested that pollinator infidelity in high alpine plant communities can reduce female reproductive success of P. viscosum by inhibiting the performance of conspecific pollen grains in flowers receiving foreign pollen.
RESPONSES OF SNOWBED PLANT SPECIES TO CHANGES IN GROWING-SEASON LENGTH'
- C. Galen, M. Stanton
- Environmental Science
- 1 July 1995
The results suggest that interspecific differences in growth phenology of coexisting species will promote shifts in snowbed plant communities with climate change within generations, and differences in developmental phenology better predicted species-specific responses to snowmelt schedule than distributional affinities.
Life on The Edge: Adaptation Versus Environmentally Mediated Gene Flow in The Snow Buttercup, Ranunculus Adoneus
- Maureen L. Santon, C. Galen
- Environmental ScienceAmerican Naturalist
- 1 August 1997
It is found that adaptive differentiation is not occurring along the snowmelt gradient, despite striking differences in microhabitat conditions and reproductive phenology between early‐ and latemelting sites, and demographic analysis suggests that maternal environmental effects on propagule quality can lead to directional gene flow from benign to marginal sites in populations occupying heterogeneous habitats.
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