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Record W7132878521

The Dynamics of Ecology, Demography, Dispersal, Habitat Selection, and Life History in a Crayfish Cambarus bartonii Population in Ontario

2023· dissertation· W7132878521 on OpenAlexaboutno aff
Adeena Zahid

Bibliographic record

VenueTSpace · 2023
Typedissertation
Language
FieldEnvironmental Science
TopicCrustacean biology and ecology
Canadian institutionsnot available
Fundersnot available
KeywordsCrayfishBiological dispersalHabitatPopulationPopulation ecologyEndangered speciesLife history theorySelection (genetic algorithm)Resource (disambiguation)
DOInot available

Abstract

fetched live from OpenAlex

A fundamental goal in ecology is to understand how organisms operate and organize in ecosystems. Yet, there is much to be gleaned about the underlying drivers of these ecological mechanisms. I used mark-recapture methodology to study a Cambarus bartonii population in Ontario. I examined ecology, demography, dispersal, habitat selection, their underlying drivers and temporal patterns, and their ecological implications for this population. I identified patterns encompassing capture frequency, size classes, length-weight relationships, life history, and population size estimates. I documented considerable crayfish dispersal within a short period of time, uncovered patterns relating dispersal and life-history traits, and habitat selection and its underlying processes, which helps our understanding of how organisms disperse and choose habitats. My research has implications for understanding population dynamics and resource selection in a changing world, given that crayfish are characterized as keystone species, and they are of particular concern as both invasive and endangered species globally.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

How this classification was reachedexpand

Full frame machine prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.001
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Observational · Consensus signal: Observational
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.090
Threshold uncertainty score0.181

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0000.001
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0010.001
Science and technology studies0.0010.001
Scholarly communication0.0010.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0010.000

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.

Opus teacher head0.011
GPT teacher head0.245
Teacher spread0.234 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designObservational
Domainnot available
GenreEmpirical

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".

Quick stats

Citations0
Published2023
Admission routes1
Has abstractyes

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