2026 Nickolas M. Waser: Ecology and Evolution Researcher – H-Index, Publications & Awards

Discipline name	D-Index	World Ranking	Current World Ranking	National Ranking	Current National Ranking	Publications	Citations
Ecology and Evolution	80	825	784	301	280	141	28240

Research.com Recognitions

2001 - Fellow of the American Association for the Advancement of Science (AAAS)

Overview

Nickolas M. Waser is affiliated with the University of California, Riverside in the United States. Their research spans fields within Agricultural and Biological Sciences and Environmental Science, with a focus on subfields such as Ecology, Evolution, Behavior and Systematics, Nature and Landscape Conservation, Plant Science, Insect Science, and Genetics.

The main topics of Nickolas M. Waser's work include:

Plant and animal studies
Ecology and Vegetation Dynamics Studies
Plant Parasitism and Resistance
Insect and Pesticide Research
Insect and Arachnid Ecology and Behavior
Species Distribution and Climate Change

Their recent papers cover a range of ecological and environmental science subjects and include:

Temporal flexibility in the structure of plant-pollinator interaction networks, 2020, published in Oikos
Impacts of beekeeping on wild bee diversity and pollination networks in the Aegean Archipelago, 2021, published in Ecography
Predispersal Seed Predation Obscures the Detrimental Effect of Dust on Wildflower Reproduction, 2021, published in International Journal of Plant Sciences
Comparative impacts of long-term trends in snowmelt and species interactions on plant population dynamics, 2022, published in Journal of Ecology
On the temporally flexible structure of plant-pollinator interaction networks, 2020, published in bioRxiv (Cold Spring Harbor Laboratory)

Nickolas M. Waser has frequently collaborated with several researchers including:

Paul J. CaraDonna
Mary V. Price
Amparo Lázaro
Andreas Müller
Andreas Werner Ebmer

Their publications appear in a variety of journals, illustrating the interdisciplinary nature of their research. Frequent publication venues include:

Oikos
Ecography
International Journal of Plant Sciences
Journal of Ecology
bioRxiv (Cold Spring Harbor Laboratory)

Nickolas M. Waser was recognized as a Fellow of the American Association for the Advancement of Science (AAAS) in 2001.

Best Publications

ENDANGERED MUTUALISMS: The Conservation of Plant-Pollinator Interactions

Carol A. Kearns;David W. Inouye;Nickolas M. Waser

2559
Citations
Generalization in pollination systems, and why it matters

Nickolas M. Waser;Lars Chittka;Mary V. Price;Neal M. Williams

2337
Citations
Global warming and the disruption of plant–pollinator interactions

Jane Memmott;Paul G. Craze;Nickolas M. Waser;Mary V. Price

1607
Citations
Tolerance of pollination networks to species extinctions

Jane Memmott;Nickolas M. Waser;Mary V. Price

1406
Citations
Flower constancy: definition, cause, and measurement

Nickolas M. Waser

822
Citations
Flower Constancy, Insect Psychology, and Plant Evolution

Lars Chittka;James D. Thomson;Nickolas M. Waser

801
Citations
Competition for Hummingbird Pollination and Sequential Flowering in Two Colorado Wildflowers

Nickolas M. Waser

700
Citations
Geitonogamy: The neglected side of selfing

Tom J. de Jong;Nickolas M. Waser;Peter G.L. Klinkhamer

610
Citations
Pollen dispersal and optimal outcrossing in Delphinium nelsoni

M. V. Price;M. V. Price;N. M. Waser;N. M. Waser

599
Citations
Plant-pollinator interactions: from specialization to generalization.

Nickolas Merritt Waser;Jeff Ollerton

587
Citations
A global test of the pollination syndrome hypothesis.

Jeff Ollerton;Ruben Alarcón;Ruben Alarcón;Ruben Alarcón;Nickolas M. Waser;Nickolas M. Waser;Nickolas M. Waser;Mary V. Price;Mary V. Price;Mary V. Price

583
Citations
New frontiers in competition for pollination.

Randall J. Mitchell;Rebecca J. Flanagan;Beverly J. Brown;Nickolas M. Waser;Nickolas M. Waser

467
Citations
Interspecific pollen transfer and competition between co-occurring plant species.

Nickolas M. Waser

426
Citations
Optimal outcrossing in Ipomopsis aggregata: seed set and offspring fitness.

Nickolas M. Waser;Mary V. Price

417
Citations
Year‐to‐year variation in the topology of a plant–pollinator interaction network

Ruben Alarcón;Nickolas M. Waser;Jeff Ollerton

409
Citations
Integration of alien plants into a native flower-pollinator visitation web.

Jane Memmott;Nickolas M. Waser

407
Citations
EFFECTS OF EXPERIMENTAL WARMING ON PLANT REPRODUCTIVE PHENOLOGY IN A SUBALPINE MEADOW

Mary V. Price;Mary V. Price;Nickolas M. Waser;Nickolas M. Waser

392
Citations
The production of dilute nectars by hummingbird and honeyeater flowers

Graham H. Pyke;Nickolas M. Waser

387
Citations
POLLINATOR CHOICE AND STABILIZING SELECTION FOR FLOWER COLOR IN DELPHINIUM NELSONII.

Nickolas M. Waser;Mary V. Price;Mary V. Price

375
Citations
Interaction rewiring and the rapid turnover of plant-pollinator networks

Paul J. CaraDonna;William K. Petry;William K. Petry;William K. Petry;Ross M. Brennan;Ross M. Brennan;James L. Cunningham;James L. Cunningham

374
Citations

Frequent Co-Authors

Mary V. Price University of Arizona

Diane R. Campbell University of California, Irvine

Jeff Ollerton University of Northampton

David W. Inouye University of Maryland, College Park

Randall J. Mitchell University of Akron

James D. Thomson University of Toronto

Jane Memmott University of Bristol

Graham H. Pyke Macquarie University

Ruth G. Shaw University of Minnesota

Paul G. Wolf University of Alabama in Huntsville

External Links

Personal website of Nickolas M. Waser

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