2026 James R. Karr: Ecology and Evolution Researcher – H-Index, Publications & Awards

Discipline name	D-Index	World Ranking	National Ranking	Publications	Citations
Ecology and Evolution	75	1021	382	135	48737

Discipline name

D-Index

World Ranking

National Ranking

Publications

Citations

Ecology and Evolution

1021

382

135

48737

Research.com Recognitions

1981 - Fellow of the American Association for the Advancement of Science (AAAS)

Overview

James R. Karr was affiliated with the University of Washington in the United States. Their research primarily focused on environmental science, with significant contributions in the fields of nature and landscape conservation, ecology, management, monitoring, policy and law, sociology and political science, and ecological modeling.

The scientist's work covered a variety of topics including:

Avian ecology and behavior
Fish ecology and management studies
Environmental DNA in biodiversity studies
Environmental conservation and management
Conservation, ecology, wildlife education
Ecology and vegetation dynamics studies
Species distribution and climate change

The recent papers authored or co-authored by James R. Karr include:

Ecological integrity is both real and valuable, 2021, Conservation Science and Practice
Long-term monitoring reveals widespread and severe declines of understory birds in a protected Neotropical forest, 2022, Proceedings of the National Academy of Sciences
Responses of multimetric indices to disturbance are affected by index construction features, 2024, Environmental Reviews
Global concerns related to water biology and security: The need for language and policies that safeguard living resources versus those that dilute scientific knowledge, 2023, Water Biology and Security
Environmental impact assessments should include rigorous scientific peer review, 2024, Water Biology and Security

The frequent co-authors with whom James R. Karr collaborated included:

Robert M. Hughes
Henry S. Pollock
Corey E. Tarwater
Jeffrey D. Brawn
Renata Ruaro

The scientist published multiple works in the following venues:

Water Biology and Security (2 publications)
Conservation Science and Practice (1 publication)
Proceedings of the National Academy of Sciences (1 publication)
Environmental Reviews (1 publication)
Ecology (1 publication)

James R. Karr was recognized as a Fellow of the American Association for the Advancement of Science (AAAS) in 1981.

Best Publications

The Natural Flow Regime

N. LeRoy Poff;N. LeRoy Poff;J. David Allan;Mark B. Bain;James R. Karr

9738
Citations
Assessment of Biotic Integrity Using Fish Communities

James R. Karr

4326
Citations
Biological Integrity: A Long-Neglected Aspect of Water Resource Management

James R. Karr

2501
Citations
Restoring life in running waters : better biological monitoring

James R. Karr;Ellen W. Chu

1828
Citations
Ecological perspective on water quality goals

James R. Karr;Daniel R. Dudley

1727
Citations
Habitat Structure and Stream Fish Communities

Owen T. Gorman;James R. Karr

1694
Citations
Defining and measuring river health

James R. Karr

1114
Citations
Biological Integrity Versus Biological Diversity as Policy Directives: Protecting Biotic Resources

Paul L. Angermeier;James R. Karr

929
Citations
A Benthic Index of Biotic Integrity (B-IBI) for Rivers of the Tennessee Valley

B. L. Kerans;James R. Karr

926
Citations
Density Compensation in Island Faunas

Robert H. MacArthur;Jared M. Diamond;James R. Karr

841
Citations
Patch Dynamics in Lotic Systems: The Stream as a Mosaic

Catherine M. Pringle;Robert J. Naiman;Gernot Bretschko;James R. Karr

816
Citations
Relationships between Woody Debris and Fish Habitat in a Small Warmwater Stream

Paul L. Angermeier;James R. Karr

656
Citations
Regional Application of an Index of Biotic Integrity Based on Stream Fish Communities

Kurt D. Fausch;James R. Karr;Philip R. Yant

639
Citations
Vegetation Structure and Avian Diversity in Several New World Areas

James R. Karr;Roland R. Roth

637
Citations
Assessing Invertebrate Responses to Human Activities: Evaluating Alternative Approaches

Leska S. Fore;James R. Karr;Robert W. Wisseman

626
Citations
Biological Integrity versus Biological Diversity as Policy Directives

Paul L. Angermeier;James R. Karr

588
Citations
Introduction: Sustaining living rivers

James R. Karr;Ellen W. Chu

585
Citations
Breeding birds of isolated woodlots: area and habitat relationships

John G. Blake;James R. Karr

578
Citations
Fish communities along environmental gradients in a system of tropical streams

Paul L. Angermeier;James R. Karr

553
Citations
Structure of Avian Communities in Selected Panama and Illinois Habitats

James R. Karr

538
Citations
Conservation Biology: An Evolutionary-Ecological Perspective

James R. Karr;M. E. Soule;B. A. Wilcox

106
Citations
Biological diversity: The coexistence of species on changing landscapes: by Michael A. Huston Cambridge University Press, 1994. £60.00/$100.00 hbk, £24.95/$34.95 pbk (xix + 681 pages) ISBN 0 521 36093 5

James R Karr

64
Citations

Frequent Co-Authors

Robert L. Beschta Oregon State University

Jeffrey D. Brawn University of Illinois at Urbana-Champaign

N. LeRoy Poff Colorado State University

Reed F. Noss University of Florida

Robert J. Naiman University of Washington

Derek B. Booth University of California, Santa Barbara

F. Richard Hauer University of Montana

G. Wayne Minshall Idaho State University

Brian D. Richter The Nature Conservancy

Robert M. Hughes Oregon State University

External Links

Personal website of James R. Karr Google Scholar page

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