“Evolutionist and Missionary,” The Reverend John Thomas Gulick (1832–1923). Part I: cumulative segregation—geographical isolation
Bibliographic record
Abstract
During the late 19th and early 20th centuries, the American missionary and naturalist John Thomas Gulick (1832-1923) was one of the most well-known and influential evolutionists, anticipating in his research and writing, later proposals of geographical isolation, population genetics, genetic drift, and the founder principle in speciation. In over 20 publications based on studies of non-adaptive geographical variation in several hundred species of snails in the genus Achatinella, collected in the valleys of Oahu in the Sandwich Islands (Hawaii), Gulick provided evidence for the formation of new species from varieties and the importance of geographical (non-adaptive) isolation in species diversification. Gulick's theory of the species-differentiating effects of isolation was regarded by many as a more complete theory of speciation than Darwin's, and by others as correcting a fundamental deficiency in Darwin's theory, namely how groups of organisms diversify one from another. Gulick also saw organisms as active participants in, and in interaction with, their environment, for which he coined the term coincident selection, anticipating the Baldwin effect/organic selection. With his concepts of cumulative segregation (geographical isolation), indiscriminate isolation (the Founder effect) and coincident selection (the Baldwin effect), we should recognize Gulick as one of the earliest and most original and innovative evolutionary biologists.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".