Nickolas M. Waser

Affiliation: University of California, Riverside

ORCID: 0000-0001-8416-5037

Works: 122 total (114 publications, 8 datasets, 0 documents)

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Works (122)

All (122)Publications (114)Datasets (8)

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Article

Comparative impacts of long-term trends in snowmelt and species interactions on plant population dynamics

2022Journal of EcologyDOI: 10.1111/1365-2745.13875Cited 2 times

Article

Predispersal Seed Predation Obscures the Detrimental Effect of Dust on Wildflower Reproduction

2021International Journal of Plant SciencesDOI: 10.6086/D10X1R

Article

Temporal flexibility in the structure of plant–pollinator interaction networks

2020OikosDOI: 10.1111/oik.07526Cited 80 times

Article

Atypical flowers can be as profitable as typical hummingbird flowers

2018The American NaturalistDOI: 10.1086/699836Cited 30 times

Publication

Art/Science collaborations: new explorations of ecological systems, values, and their feedbacks

2018Ecological Society of America

Publication

Zen Ecology and the origin of scientific ideas

2017American Society of Naturalists

Article

Effects of road dust on the pollination and reproduction of wildflowers

2017International Journal of Plant SciencesDOI: 10.1086/689282Cited 21 times

Publication

40 years of progress in pollination biology, and what it means for citizen scientists

2017Aquilegia: Newsletter of the Colorado Native Plant Society

Publication

Using the literature to test pollination syndromes - some methodological cautions

2015Journal of Pollination EcologyDOI: 10.26786/1920-7603(2015)17Cited 53 times

Article

Competition for pollination and the evolution of flowering time

2015American NaturalistDOI: 10.1086/681255Cited 10 times

Article

Coyotes, deer, and wildflowers: diverse evidence points to a trophic cascade

2014NaturwissenschaftenDOI: 10.1007/s00114-014-1172-4Cited 27 times

Article

Responses of high-altitude graminoids and fungal fungi to 20 years of experimental warming

2014Ecology

Article

Asynchronous changes in phenology of migrating Broad-tailed Hummingbirds and their early season nectar resources

2012Ecology

Chapter

The Ecology of Place

2011

Chapter

The Ecology of Place

2011

Article

Density-dependent demographic responses of a semelparous plant to natural variation in seed rain

2010OikosDOI: 10.1111/j.1600-0706.2010.18429.xCited 23 times

Article

Size-specific interaction patterns and size matching in a plant-pollinator interaction web

2009Annals of BotanyDOI: 10.1093/aob/mcp027Cited 243 times

Article

A global test of the pollination syndrome hypothesis

2009Annals of BotanyDOI: 10.1093/aob/mcp031Cited 472 times

Article

Lifetime fitness in two generations of Ipomopsis hybrids

2008Evolution

Article

Bridging the generation gap in plants: pollination, parental fecundity, and offspring demography

2008EcologyDOI: 10.1890/07-0614.1Cited 72 times

Article

Evolutionary dynamics of an Ipomopsis hybrid zone: confronting models with lifetime fitness data

2007American NaturalistDOI: 10.2307/4137022Cited 24 times

Article

Life-history consequences of vegetative damage in scarlet gilia, a monocarpic plant

2007OikosDOI: 10.1111/j.2007.0030-1299.15705.xCited 3 times

Article

Self-sterility in Ipomopsis aggregata (Polemoniaceae) is due to prezygotic ovule degeneration

2006American Journal of BotanyDOI: 10.3732/ajb.93.2.254Cited 59 times

Article

Temporal and spatial variation in pollination of a montane herb: a seven-year study

2005EcologyDOI: 10.1890/04-1274Cited 236 times

Chapter

Adaptive speciation

2004

Article

Predicting patterns of mating and potential hybridization from pollinator behavior

2002American NaturalistDOI: 10.2307/3078905Cited 12 times

Chapter

Cognitive ecology of pollination

2001

Chapter

Evolutionary Ecology: Concepts and Case Studies

2001

Article

Genotype-by-environment interaction and the fitness of plant hybrids in the wild

2001EvolutionDOI: 10.1554/0014-3820(2001)055[0669:gbeiat]2.0.co;2Cited 163 times

Article

Exploring the "Most effective pollinator principal" with complex flowers: Bumblebees and Ipomopsis aggregata

2001Annals of Botany

Article

Long-distance pollinator flights and pollen dispersal between populations of Delphinium nuttalianum

2001Oecologia

Article

Experimental manipulation of plant density and its effect on pollination and reproduction of two confamilial montane herbs

2001OecologiaDOI: 10.1007/s004420000488Cited 121 times

Article

The impact of floral larceny on individuals, populations, and communities

2001OecologiaDOI: 10.1007/s004420100739Cited 230 times

Article

Tests of pre- and postpollination barriers to hybridization between sympatric species of Ipomopsis (Polemoniaceae)

2001American Journal of BotanyDOI: 10.2307/2657012Cited 56 times

Article

Outbreeding depression varies among cohorts of Ipomopsis aggregata planted in nature

2000Evolution

Article

Responses of subalpine meadow vegetation to four years of experimental warming

2000Ecological ApplicationsDOI: 10.1890/1051-0761(2000)010[0811:rosmvt]2.0.co;2Cited 58 times

Article

Spatial genetic structure of Delphinium nuttallianum populations: inferences about gene flow

1999Heredity

Article

Effects of Local Density on Pollination and Reproduction in Delphinium nuttallianum and Aconitum columbianum (Ranunculaceae)

1999American Journal of BotanyDOI: 10.2307/2656707Cited 165 times

Article

Flower constancy, insect psychology, and plant evolution

1999NaturwissenschaftenDOI: 10.1007/s001140050636Cited 637 times

Article

Pollination, angiosperm speciation, and the nature of species boundaries

1998OikosDOI: 10.2307/3546930Cited 135 times

Article

Bedazzled by flowers

1998NatureDOI: 10.1038/29657Cited 17 times

Article

Hummingbird foraging at experimental patches of flowers: evidence for weak risk-aversion

1998Journal of Avian BiologyDOI: 10.2307/3677113Cited 16 times

Article

What plant ecologists can learn from zoology

1998Perspectives in Plant Ecology, Evolution and SystematicsDOI: 10.1078/1433-8319-00056Cited 21 times

Article

Pollen transfer by natural hybrids and parental species in an Ipomopsis hybrid zone

1998EvolutionDOI: 10.2307/2411334Cited 19 times

Article

Effects of experimental warming on plant reproductive phenology in a subalpine meadow

1998EcologyDOI: 10.1890/0012-9658(1998)079[1261:eoewop]2.0.co;2Cited 283 times

Article

Endangered mutualisms: the conservaiton of plant-pollinator interactions

1998Annual Review of Ecology and Systematics

Article

Analyzing pollinator-mediated selection in a plant hybrid zone: hummingbird visitation patterns on three spatial scales

1997American NaturalistDOI: 10.1086/285991Cited 224 times

Article

Why red flowers are not invisible to bees

1997Israel Journal of Plant SciencesDOI: 10.1080/07929978.1997.10676682Cited 274 times

Article

Hummingbird behavior and mechanisms of selection on flower color in Ipomopsis

1997Ecology

Article

Generalization in pollination systems, and why it matters

1996EcologyDOI: 10.2307/2265575Cited 1924 times

Article

Mechanisms of hummingbird-mediated selection for flower width in Ipomopsis aggregata

1996Ecology

Article

Seed set and seed mass in Ipomopsis aggregata: variance partitioning and inferences about postpollination selection

1995EvolutionDOI: 10.1111/j.1558-5646.1995.tb05960.xCited 27 times

Article

Oviposition patterns and larval success of a pre-dispersal seed predator attacking two confamilial host plants

1995OikosDOI: 10.2307/3545989Cited 29 times

Article

Crossing distance effects in Delphinium nelsonii: outbreeding and inbreeding depression in progeny fitness

1994Evolution

Article

Indirect selection of stigma position in Ipomopsis aggregata via a genetically correlated trait

1994EvolutionDOI: 10.2307/2410003Cited 22 times

Article

Categorization of food types enhances foraging performance of bumble bees

1994Animal Behaviour

Article

Systematic increase in pollen carryover and its consequences for geitonogamy in plant populations

1994OikosDOI: 10.2307/3545831Cited 81 times

Chapter

Proceedings of the International Symposium on Pollination in Tropics

1993

Article

Crossing distance effects on prezygotic performance in plants: an argument for female choice

1993OikosDOI: 10.2307/3544843Cited 67 times

Chapter

The Natural History of Inbreeding and Outbreeding, Theoretical and Empirical Perspectives

1993

Article

Geitonogamy: the neglected side of selfing

1993Trends in Ecology and EvolutionDOI: 10.1016/0169-5347(93)90239-lCited 438 times

Chapter

Proceedings of the International Symposium on Pollination in Tropics

1993

Article

Plant size, geitonogamy, and seed set in Ipomopsis aggregata

1992Oecologia

Article

Adaptive significance of Ipomopsis aggregata nectar production: pollination success of single flowers

1992Ecology

Article

Reproductive costs of self-pollination in Ipomopsis aggregata: are ovules usurped?

1991American Journal of BotanyDOI: 10.1002/j.1537-2197.1991.tb14511.xCited 195 times

Article

Outcrossing distance effects in Delphinium nelsonii: pollen loads, pollen tubes, and seed set

1991Ecology

Article

Components of Phenotypic Selection: pollen export and flower corolla width in Ipomopsis aggregata

1991EvolutionDOI: 10.2307/2409892Cited 85 times

Article

The effect of floral abundance on feeder censuses of hummingbird populations

1991CondorDOI: 10.2307/1368943Cited 39 times

Article

Pollination efficiency and effectiveness of bumblebees and hummingbirds visiting Delphinium nelsonii

1990Collectanea Botanica (Barcelona)

Article

Nectar standing crops in Delphinium nelsonii flowers: spatial autocorrelation among plants?

1990EcologyDOI: 10.2307/1940252Cited 51 times

Article

Optimal outcrossing in Ipomopsis aggregata: seed set and offspring fitness

1989EvolutionDOI: 10.2307/2409589Cited 280 times

Article

Variation in pollen flow within and among populations of Ipomopsis aggregata

1989EvolutionDOI: 10.2307/2409460Cited 27 times

Article

Sources of variation in plant reproductive success, and implications for concepts of sexual selection

1989American NaturalistDOI: 10.1086/284988Cited 117 times

Publication

Course Book, Rocky Mountain Field Biology, 1989

1989

Article

Comparative pollen and dye transfers by pollinators of Delphinium nelsonii

1988Functional Ecology

Article

Research in plant evolution at the Rocky Mountain Biological Laboratory

1987Evolutionary Trends in Plants

Article

Spatial genetic heterogeneity in a population of the montane perennial plant Delphinium nelsonii

1987HeredityDOI: 10.1038/hdy.1987.39Cited 71 times

Article

Female mate choice in a perennial herbaceous wildflower, Delphinium nelsonii

1987Evolutionary Trends in Plants

Article

The evolution of plant mating systems: multilocus simulations of pollen dispersal

1987American NaturalistDOI: 10.1086/284660Cited 55 times

Article

Pollen precedence and stigma closure: a mechanism of competition for pollination between Delphinium nelsonii and Ipomopsis aggregata

1986OecologiaDOI: 10.1007/bf00379906Cited 191 times

Article

Comparative studies of pollen and fluorescent dye transport by bumble bees visiting Erythronium grandiflorum

1986Oecologia

Article

Reciprocal transplant experiments with Delphinium nelsonii (Ranunculaceae): evidence for local adaptation

1985American Journal of BotanyDOI: 10.1002/j.1537-2197.1985.tb08445.xCited 115 times

Article

The effect of nectar guides on pollinator preference: experimental studies with a montane herb

1985OecologiaDOI: 10.1007/bf00378462Cited 115 times

Article

The effect of Delphinium nelsonii pollen on seed set in Ipomopsis aggregata, a competitor for hummingbird pollination

1985American Journal of BotanyDOI: 10.1002/j.1537-2197.1985.tb08363.xCited 90 times

Article

Bumblebee foraging at a "hummingbird" flower: reward economics and floral choice

1985American Midland NaturalistDOI: 10.2307/2425603Cited 34 times

Article

Experimental studies of pollen carryover: effects of floral variability in Ipomopsis aggregata

1984OecologiaDOI: 10.1007/bf00379024Cited 106 times

Article

Pollen shortcomings

1984Natural History

Chapter

Pollination Biology

1983

Chapter

Handbook of Experimental Pollination Biology

1983

Chapter

Handbook of Experimental Pollination Biology

1983

Article

Pollinator behaviour and natural selection for flower colour in Delphinium nelsonii

1983NatureDOI: 10.1038/302422a0Cited 153 times

Article

Site-fidelity, longevity, and population dynamics of broadtailed hummingbirds: a ten-year study

1983Oecologia

Chapter

Handbook of Experimental Pollination Biology

1983

Chapter

Handbook of Experimental Pollination Biology

1983

Article

A comparison of pollen and fluourescent dye carryover by natural pollinators of Ipomopsis aggregata

1982Ecology

Article

A comparison of distances flown by different visitors to flowers of the same species

1982OecologiaDOI: 10.1007/bf00384496Cited 176 times

Article

Experimental studies of pollen carryover: hummingbirds and Ipomopsis aggregata

1982OecologiaDOI: 10.1007/bf00380004Cited 126 times

Article

Pollinator choice and stabilizing selection for flower color in Delphinium nelsonii

1981EvolutionDOI: 10.2307/2407846Cited 122 times

Article

Effective mutualism between sequentially flowering plant species

1979NatureDOI: 10.1038/281670a0Cited 260 times

Article

Pollen dispersal and optimal outcrossing in Delphinium nelsoni

1979NatureDOI: 10.1038/277294a0Cited 477 times

Article

Competition for hummingbird pollination and sequential flowering in two Colorado wildflowers

1978EcologyDOI: 10.2307/1938545Cited 514 times

Article

Interspecific pollen transfer and competition between co-occurring plant species

1978OecologiaDOI: 10.1007/bf00349811Cited 314 times

Thesis

Competition for pollination and the evolution of flowering time

1977

Article

Implications of recaptures of broad-tailed hummingbirds banded in Colorado

1977Auk

Article

Implications of recaptures of broad-tailed hummingbirds banded in Colorado

1977Auk

Article

Implications of recaptures of broad-tailed hummingbirds banded in Colorado

1977Auk

Article

Food supply and nest timing of broad-tailed hummingbirds in the Rocky Mountains

1976CondorDOI: 10.2307/1366943Cited 29 times

Article

Possible impairment of nest-building of hummingbirds by acetate leg tags

1975CondorDOI: 10.2307/1366251Cited 5 times

Article

Strategies of nesting in a high-altitude temperate hummingbird

1974Bulletin of the Ecological Society of America

Nickolas M. Waser

Local Knowledge Graph (Top 60 entities)

Works (122)

Comparative impacts of long-term trends in snowmelt and species interactions on plant population dynamics

Predispersal Seed Predation Obscures the Detrimental Effect of Dust on Wildflower Reproduction

Temporal flexibility in the structure of plant–pollinator interaction networks

Atypical flowers can be as profitable as typical hummingbird flowers

Art/Science collaborations: new explorations of ecological systems, values, and their feedbacks

Zen Ecology and the origin of scientific ideas

Effects of road dust on the pollination and reproduction of wildflowers

40 years of progress in pollination biology, and what it means for citizen scientists

Comment on Cognition-mediated evolution of low-quality floral nectars.

Is Plant Fitness Proportional to Seed Set? An Experiment and a Spatial Model

Interaction rewiring and the rapid turnover of plant-pollinator networks

Drought, pollen and nectar availability, and pollination success

Competition for pollination and the evolution of flowering time

Using the literature to test pollination syndromes - some methodological cautions

Competition for pollination and the evolution of flowering time

Coyotes, deer, and wildflowers: diverse evidence points to a trophic cascade

Responses of high-altitude graminoids and fungal fungi to 20 years of experimental warming

Asynchronous changes in phenology of migrating Broad-tailed Hummingbirds and their early season nectar resources

The Ecology of Place

The Ecology of Place

Density-dependent demographic responses of a semelparous plant to natural variation in seed rain

Size-specific interaction patterns and size matching in a plant-pollinator interaction web

A global test of the pollination syndrome hypothesis

Lifetime fitness in two generations of Ipomopsis hybrids

Bridging the generation gap in plants: pollination, parental fecundity, and offspring demography

Evolutionary dynamics of an Ipomopsis hybrid zone: confronting models with lifetime fitness data

Life-history consequences of vegetative damage in scarlet gilia, a monocarpic plant

Self-sterility in Ipomopsis aggregata (Polemoniaceae) is due to prezygotic ovule degeneration

Temporal and spatial variation in pollination of a montane herb: a seven-year study

Adaptive speciation

Predicting patterns of mating and potential hybridization from pollinator behavior

Cognitive ecology of pollination

Evolutionary Ecology: Concepts and Case Studies

Genotype-by-environment interaction and the fitness of plant hybrids in the wild

Exploring the "Most effective pollinator principal" with complex flowers: Bumblebees and Ipomopsis aggregata

Long-distance pollinator flights and pollen dispersal between populations of Delphinium nuttalianum

Experimental manipulation of plant density and its effect on pollination and reproduction of two confamilial montane herbs

The impact of floral larceny on individuals, populations, and communities

Tests of pre- and postpollination barriers to hybridization between sympatric species of Ipomopsis (Polemoniaceae)

Outbreeding depression varies among cohorts of Ipomopsis aggregata planted in nature

Responses of subalpine meadow vegetation to four years of experimental warming

Spatial genetic structure of Delphinium nuttallianum populations: inferences about gene flow

Effects of Local Density on Pollination and Reproduction in Delphinium nuttallianum and Aconitum columbianum (Ranunculaceae)

Flower constancy, insect psychology, and plant evolution

Pollination, angiosperm speciation, and the nature of species boundaries

Bedazzled by flowers

Hummingbird foraging at experimental patches of flowers: evidence for weak risk-aversion

What plant ecologists can learn from zoology

Pollen transfer by natural hybrids and parental species in an Ipomopsis hybrid zone

Effects of experimental warming on plant reproductive phenology in a subalpine meadow

Endangered mutualisms: the conservaiton of plant-pollinator interactions

Analyzing pollinator-mediated selection in a plant hybrid zone: hummingbird visitation patterns on three spatial scales

Why red flowers are not invisible to bees

Hummingbird behavior and mechanisms of selection on flower color in Ipomopsis

Generalization in pollination systems, and why it matters

Mechanisms of hummingbird-mediated selection for flower width in Ipomopsis aggregata

Seed set and seed mass in Ipomopsis aggregata: variance partitioning and inferences about postpollination selection

Oviposition patterns and larval success of a pre-dispersal seed predator attacking two confamilial host plants

Crossing distance effects in Delphinium nelsonii: outbreeding and inbreeding depression in progeny fitness

Indirect selection of stigma position in Ipomopsis aggregata via a genetically correlated trait

Categorization of food types enhances foraging performance of bumble bees

Systematic increase in pollen carryover and its consequences for geitonogamy in plant populations

Proceedings of the International Symposium on Pollination in Tropics

Crossing distance effects on prezygotic performance in plants: an argument for female choice

The Natural History of Inbreeding and Outbreeding, Theoretical and Empirical Perspectives

Geitonogamy: the neglected side of selfing

Proceedings of the International Symposium on Pollination in Tropics

Plant size, geitonogamy, and seed set in Ipomopsis aggregata

Adaptive significance of Ipomopsis aggregata nectar production: pollination success of single flowers

Reproductive costs of self-pollination in Ipomopsis aggregata: are ovules usurped?

Outcrossing distance effects in Delphinium nelsonii: pollen loads, pollen tubes, and seed set

Components of Phenotypic Selection: pollen export and flower corolla width in Ipomopsis aggregata

The effect of floral abundance on feeder censuses of hummingbird populations

Pollination efficiency and effectiveness of bumblebees and hummingbirds visiting Delphinium nelsonii

Nectar standing crops in Delphinium nelsonii flowers: spatial autocorrelation among plants?

Optimal outcrossing in Ipomopsis aggregata: seed set and offspring fitness

Variation in pollen flow within and among populations of Ipomopsis aggregata