American Naturalist

pISSN: 0003-0147eISSN: 1537-5323• JCR: AM NATUniversity of Chicago PressUnited States
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2026 Impact Factor

2.7

Released June 2026 · Based on 2025 citation data

No change vs last year

Impact Factor History

  1. Metric year 2025

    Released

    2.7
  2. Metric year 2024

    2.7

JCR Category Rankings

Journal Citation Reports category rankings
CategoryIndexesQuartile
ECOLOGYSCIEQ2
EVOLUTIONARY BIOLOGYSCIEQ2
Q2
JCR Quartile
B2
CAS Block

American Naturalist current release and JCR quartile

American Naturalist's newest impact factor is 2.7, released June 17, 2026 and based on 2025 citation data. The journal is listed as JCR Q2 in this Journal Metrics record.

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Ranking position in Biology & Basic Science

Ranked #1,598 in Biology & Basic Science by impact factor and #529 among Q2 Biology & Basic Science journals. This context helps compare American Naturalist against journals publishing in the same field.

#1,598
of 3,717 field journals

American Naturalist publication trend

Published 604 papers across the last 5 recorded years with a current impact factor of 2.7.

2026 vs 2025: -115
How Journal Metrics uses article volume

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Journal Details

Total Articles
24,955
H-Index
419
Open Access
Hybrid
Subject Areas
Ecology, Evolution, Behavior and SystematicsNature and Landscape ConservationEcology, Evolution, Behavior and SystematicsGenetics

Article Volume

2022
183
2023
135
2024
125
2025
138
2026
23
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