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Wildflower Reproduction Phenology and Seed Traits under Early Snowmelt

Principal Investigator: Kyla Knauf
Status: active
Field: Biology
Research Areas: Phenology; Plant biology
Items: 63 (50 publications, 12 datasets, 1 documents)

Publications (50)

Student Paper

Impacts of earlier snowmelt on fruiting phenology and seed success of Rocky Mountain wildflowers

2025
Student Paper

The effects of ungulate herbivory on phenology, pollination, and reproductive success in <i>Ipomopsis aggregata</i>

1999
Article

Differences in individual flowering time change pollen limitation and seed set in three montane wildflowers

2023American Journal of BotanyDOI: 10.1002/ajb2.16123
Thesis

Effects of early snowmelt on plant phenophase timing and duration across an elevation gradient

2021
Thesis

Effects of snow-melt timing on three high altitude Potentilla (Rosaceae) species: growth, reproduction, and distribution

1998
Thesis

Timing is everything: Phenological change and the implications for plants, pollinators and their interactions.

2015
Publication

Effects of frost on wildflowers: an unexpected consequence of climate change

2011
Article

A phenological mid-domain effect in flowering diversity

2005Oecologia
Article

Direct and indirect effects of episodic frost on plants growth and reproduction in subalpine wildflowers

2018Global Change Biology
Thesis

Potential impact of climate change on the phenology and reproduction of <i>Delphinium nuttallianum</i> (Ranunculaceae)

2000
Student Paper

A long-term study on the effects of temporal variation in precipitation on the flowering behavior of <i>Androsace septentrionalis</i> L. (Primulaceae)

1997
Thesis

Competition for pollination and the evolution of flowering time

1977
Article

Variation in the phenology and abundance of flowering by native and exotic plants in subalpine meadows

2010Biological Invasions
Student Paper

The phenology and ecology of a west-facing meadow

1972
Article

Phenology of high-altitude climates

2013Phenology: An Integrative Environmental Science
Student Paper

Reproductive efforts of plants along an altitudinal gradient

1973
Article

Natural selection favors rapid reproductive phenology in Potentilla pulcherrima (Rosaceae) at opposite ends of a subalpine snowmelt gradient

2004American Journal of Botany
Chapter

Plant Reproductive Ecology: Patterns and Strategies

1988
Chapter

Phenology: An Integrative Environmental Science

2025DOI: 10.1007/978-3-031-75027-4_13
Article

Disruptive selection in flowering time of Wyethia amplexicaulis (Asteraceae)

1993Plant Species Biology
Article

A study of seed dormancy in 18 species of high altitude Colorado plants

1956Butler University Botanical Studies
Article

Flowering phenology and compensation for herbivory in <i>Ipomopsis aggregata</i>

2003Oecologia
Student Paper

A comparison of the effects of predispersal seed predation on seed set of three Rocky Mountain plant species in the sun and shade

1983
Article

Variation in timing and abundance of flowering by <i>Delphinium barbeyi</i> Huth (Ranunculaceae): the roles of snowpack, frost, and La Niña, in the context of climate change

2002Oecologia
Student Paper

The reproductive outputs of <i>Delphinium nelsonii</i> at differing elevations

1995
Student Paper

Specificity of pollinators in mountain meadows

1973
Thesis

Organization of a plant-pollinator community in a seasonal environment

1984
Student Paper

The occurrence of annuals and perennials in a subalpine system

1983
Student Paper

Floral succession in a spruce-fir forest

1971
Publication

Climate-ecosystem interactions in montane meadows

2002
Article

Synchrony and periodicity of flowering in <i>Frasera speciosa</i> (Gentianaceae)

1985Ecology
Thesis

Mechanisms of competition for pollination between two Colorado wildflowers

1987
Student Paper

Variation in receptive stigma time after pollination of <i>Aquilegia caerulea</i>

1991
Chapter

Ecology and Evolution of Plant Reproduction: New Approaches

1992
Article

Pollinator experience, neophobia, and the evolution of flowering time

2009Proceedings of the Royal Society B
Student Paper

Effect of altitude on <i>Frasera speciosa</i> populations

1973
Article

Forecasting phenology: from species variability to community forecasts

2012Ecology Letters
Student Paper

A study of the phenology and microhabitat selection of flowering plants along the East River in Gothic, Colorado

1971
Article

Effects of snowmelt timing and neighbor density on the distribution of the high altitude plant, Potentilla diversifolia

2004Arctic, Antarctic and Alpine Research
Thesis

Climate change, phenological shifts, and species interactions: Case studies in subalpine plant and migratory fish populations

2019
Thesis

Phenological drivers and consequences for solitary bees

2024
Student Paper

Effects of Weather on Mountain White-Crowned Sparrow Reproductive Success

2015
Thesis

The effects of plant quality on bumblebee visitation and seed production in <i>Frasera speciosa</i> (Gentianaceae)

1985
Student Paper

Interspecific competition in Rocky Mountain meadow flora

1983
Student Paper

A Study of the Population Biology of <i>Frasera Speciosa</i>

1981
Student Paper

How does altered phenology affect pollination and reproduction of <i>Delphinium nuttallianum</i>?

2013
Student Paper

The effects of floral morphology on interspecific pollen transfer in <i>Ipomopsis</i>

1991
Student Paper

Vascular plant species of talus slope and their dispersal patterns

1996
Article

Pollination ecology in montane Colorado: a community analysis

1979Phytologia
Article

Do dandelion flowers influence seed set of a native plant (<i></i>Delphinium nuttallianum<i></i>) in subalpine meadows?

2004American Midland Naturalist

Datasets (12)

Dataset

Data from: The individual and combined effects of snowmelt timing and frost exposure on the reproductive success of montane forbs

2019DOI: 10.5061/dryad.kd1r166
Dataset

Data from: Reproductive losses due to climate change-induced earlier flowering are not the primary threat to plant population viability in a perennial herb

2019DOI: 10.5061/dryad.863c8sk
Dataset

Flowering phenology in subalpine meadows: Does climate variation influence community co-flowering patterns?

2021DOI: 10.6084/m9.figshare.c.3301874.v1
Dataset

Frost sensitivity of leaves and flowers of subalpine plants is related to tissue type and phenology

2021DOI: 10.5061/dryad.v4cv6
Dataset

Pollinator visitation rate and effectiveness vary with flowering phenology

2021DOI: 10.7280/D19X0D
Dataset

Colorado Elevation Gradient Snowmelt Manipulation Plant Phenology 2017-2018.

2023DOI: 10.15485/1842905
Dataset

Pre-dispersal seed predation obscures the detrimental effect of dust on wildflower reproduction - flowering and egg phenology

2023DOI: 10.6086/D18D7B
Dataset

Plant height and species information

2017DOI: 10.5061/dryad.772h7/2
Dataset

Bee phenology is predicted by climatic variation and functional traits

2021DOI: 10.5061/dryad.t76hdr7zc
Dataset

Appendix C. Relationships between temperature and arrival of Broad-tailed Hummingbirds and flowering onset in its early-season nectar resources at the Rocky Mountain Biological Laboratory in Colorado, USA.

2021DOI: 10.6084/m9.figshare.3554139.v1
Dataset

Long-term changes in flowering synchrony reflect climatic changes across an elevational gradient

2021DOI: 10.5281/zenodo.5586297
Dataset

Changing climate drives divergent and nonlinear shifts in flowering phenology across elevations

2020DOI: 10.17632/k6p34z78x9.1