Cited by 4,950Species Distribution and Climate ChangeEcology and Vegetation Dynamics StudiesStatistical Methods and Inference

Random forests for classification in ecology

Cutler, D. Richard, Edwards, Thomas C., Beard, Karen H., Cutler, Adele, Hess, Kyle T., Gibson, Jacob, Lawler, Joshua J.·2007·Ecology

Abstract

Classification procedures are some of the most widely used statistical methods in ecology. Random forests (RF) is a new and powerful statistical classifier that is well established in other disciplines but is relatively unknown in ecology. Advantages of RF compared to other statistical classifiers include (1) very high classification accuracy; (2) a novel method of determining variable importance; (3) ability to model complex interactions among predictor variables; (4) flexibility to perform several types of statistical data analysis, including regression, classification, survival analysis, and unsupervised learning; and (5) an algorithm for imputing missing values. We compared the accuracies of RF and four other commonly used statistical classifiers using data on invasive plant species presence in Lava Beds National Monument, California, USA, rare lichen species presence in the Pacific Northwest, USA, and nest sites for cavity nesting birds in the Uinta Mountains, Utah, USA. We observed high classification accuracy in all applications as measured by cross-validation and, in the case of the lichen data, by independent test data, when comparing RF to other common classification methods. We also observed that the variables that RF identified as most important for classifying invasive plant species coincided with expectations based on the literature.

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Crossref · 10.1890/07-0539.1

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15 of 15 references verified0 citation errors · 0 not checkable

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  • Random forest has demonstrated advantages over other statistical classifiers including very high classification accuracy, ranking variables by importance, ability to model complex interactions, and no assumptions about the distribution of predictor or response variables.

    “We used random forest (RF) modeling because of demonstrated advantages of RF over other types of statistical classifiers that include: (1) very high classification accuracy; (2) a method of ranking variables according to their importance; (3) the ability to model complex interactions; and (4) RF makes no assumptions about the distribution of predictor or response variables [30].”

    From Landscape Analysis of Adult Florida Panther Habitat (2015) · cites this paper as [30]

  • Random forests is an ensemble method developed to mitigate the problem of overfitting in decision trees.

    “Random forests (Breiman, 2001a;Cutler et al., 2007) is an ensemble method developed to mitigate the problem of overfitting in decision trees.”

    From Applications of machine learning in animal behaviour studies (2017) · cites this paper as Cutler et al., 2007

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Authors
Cutler, D. R., Edwards, T. C., Beard, K. H., Cutler, A., Hess, K. T., Gibson, J., & Lawler, J. J.
Affiliations
  • Utah State University (US)
  • University of Washington (US)
Corresponding author
Cutler, D. Richard
Venue
Ecology
Publisher
Wiley
Published
2007-11
Volume
88
Issue
11
Pages
2783-2792
ISSN
0012-9658 (ISSN-L)
OpenAlex
W2139086914
Cited by
4,950
References
15
Citations by year
2026: 469 · 2025: 535 · 2024: 417 · 2023: 360 · 2022: 372 · 2021: 436 · 2020: 369 · 2019: 312 · 2018: 345 · 2017: 276 · 2016: 209 · 2015: 213 · 2014: 179 · 2013: 147 · 2012: 120
FWCI
22.77
Type
journal article
Language
en
Open access
closed
Locations
  • Ecology (publishedVersion)
  • PubMed (publishedVersion)
  • Digital Commons - USU (Utah State University) (submittedVersion)
Funders
National Park Service
Topics
  • Physical Sciences › Environmental Science › Ecological Modeling › Species Distribution and Climate Change
  • Physical Sciences › Environmental Science › Nature and Landscape Conservation › Ecology and Vegetation Dynamics Studies
  • Physical Sciences › Mathematics › Statistics and Probability › Statistical Methods and Inference
Keywords
random forest, classification accuracy, feature importance, invasive plants, rare lichens, cavity-nesting birds, nest site selection, ecological classification, classifier comparison, missing data imputation, predictor interactions
MeSH terms
Algorithms, Animals, Birds, Data Interpretation, Statistical, Demography, Ecology, Models, Theoretical, Population Density, Population Dynamics, Species Specificity, Trees, Models, Statistical, Logistic Models, Ecosystem

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