The DOI matches its Crossref record; 1 of the 1 references it cites were found in a registry or an index.
r and K Selection or b and d Selection?
Abstract
The concepts of r and K selection and b and d selection are discussed and compared. The former pair of concepts will play a central role in the development of new theories in population biology which relax the assumptions that communities (and portions thereof) are either fully saturated or completely unsaturated. It is hypothesized that maximal tolerable niche overlap should vary inversely with the level of competition, and a test is suggested.
Overview
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Integrity signals
Registry
Cites
Statistics
Verification
Claims the paper makes
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Self-check
Percentages, sums and reported differences re-computed from the paper’s own numbers.
The self-check needs the paper’s full text.
Citations
Cites
The genetical theory of natural selection
Fisher, R. A. (1930) · doi:10.5962/bhl.title.27468 · Cited by 17,617
Cited by
Environmental Effects of Dams and Impoundments
Baxter, R. M. (1977) · Annual Review of Ecology and Systematics · doi:10.1146/annurev.es.08.110177.001351 · Cited by 912
Egg Size, Hatching Asynchrony, Sex, and Brood Reduction in the Common Grackle
Howe, H. F. (1976) · Ecology · doi:10.2307/1935044 · Cited by 310
Environmental Certainty, Trophic Level, and Resource Availability in Life History Evolution
Wilbur, H. M., Tinkle, D. W., & Collins, J. P. (1974) · The American Naturalist · doi:10.1086/282956 · Cited by 287
Life in 3-D: life history strategies in tunas, mackerels and bonitos
Juan-Jordá, M. J., Mosqueira, I., Freire, J., & Dulvy, N. K. (2013) · Reviews in Fish Biology and Fisheries · doi:10.1007/s11160-012-9284-4 · Cited by 64
Metadata
- Authors
- Pianka, E. R.
- Venue
- The American Naturalist
- Publisher
- University of Chicago Press
- Published
- 1972-09
- Volume
- 106
- Issue
- 951
- Pages
- 581-588
- ISSN
- 0003-0147 (ISSN-L)
- 1537-5323
- OpenAlex
- W1991884599
- Cited by
- 322
- References
- 1
- FWCI
- 21.01
- Type
- journal article
- Language
- en
- Open access
- closed
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
Are you an author, or do you see a problem with this page? Request a review
How to cite
Cite CoChat for the checks on this page, and the paper for its own findings.
- This page
- CoChat. (2026). Citation check: r and K Selection or b and d Selection? https://app.cochat.ai/papers/10.1086/282798
- The paper
- Pianka, E. R. (1972). r and K Selection or b and d Selection? The American Naturalist. https://doi.org/10.1086/282798
Data sources
Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
