{"id":"W4410085792","doi":"10.1073/pnas.2414059122","title":"Ecosystem relocation on Snowball Earth: Polar−alpine ancestry of the extant surface biosphere?","year":2025,"lang":"en","type":"article","venue":"Proceedings of the National Academy of Sciences","topic":"Polar Research and Ecology","field":"Environmental Science","cited_by":5,"is_retracted":false,"has_abstract":true,"ca_institutions":"University of Victoria","funders":"National Science Foundation","keywords":"Snowball Earth; Biome; Geology; Ecology; Glacial period; Earth science; Sea ice; Ecosystem; Glacier; Oceanography; Paleontology; Biology","routes":{"ca_aff":true,"ca_fund":false,"ca_venue":false,"about_ca":false,"invisible_to_affiliation_only":false},"retraction":null,"screen":null,"direct_labels":[],"prediction":{"model_version":"codex-gemma-dda1882f352a","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.001440367,0.00007001108,0.0001157005,0.00003922547,0.0002167919,0.00001201449,0.001100109,0.00007096245,0.00008617282],"category_scores_gemma":[0.0005726238,0.00003970246,0.00005815491,0.001028869,0.0008376324,0.0002563539,0.0003037437,0.0001650152,0.000009518149],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.00007169227,"about_ca_system_score_gemma":0.00004149862,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.00006510129,"about_ca_topic_score_gemma":0.000008519448,"domain_scores_codex":[0.9983838,0.00001778288,0.00026958,0.0002065605,0.0009465685,0.0001757749],"domain_scores_gemma":[0.9994892,0.0001072241,0.0003018719,0.00001797067,0.00005602183,0.00002766105],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"bench_or_experimental","study_design_gemma":"observational","study_design_scores_codex":[0.00003396961,0.0001138807,0.2076989,0.00009090195,0.00001555455,4.882007e-9,0.0001008312,0.002029518,0.7569642,0.02966242,0.002648827,0.0006409939],"study_design_scores_gemma":[0.0001229647,0.00005456233,0.5851569,0.0001186406,0.000004332671,0.000001673886,0.00009620609,0.002075058,0.4006841,0.01056969,0.001068976,0.00004690345],"study_design_candidate":"bench_or_experimental","study_design_consensus":null,"genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9697731,0.00007718745,7.543164e-7,0.005698675,0.00003394081,0.0001956609,0.00001681893,0.000004835318,0.02419909],"genre_scores_gemma":[0.9986581,0.00003048573,0.0003081842,0.0002195558,0.0000126798,0.00000344967,6.296325e-8,0.000001800025,0.0007657481],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.377458,"threshold_uncertainty_score":0.3086292,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.03426520291504509,"score_gpt":0.3045728301701032,"score_spread":0.2703076272550581,"validation_status":"score_only:v0-immature-baseline","note":"Baseline scores from an immature model (maturity gate not passed). Scores rank; they never assert a category."}}