{"id":"W2031330138","doi":"10.1139/b07-079","title":"Geographic variation in ecophysiological traits of black cottonwood (<i>Populus trichocarpa</i>)This article is one of a selection of papers published in the Special Issue on Poplar Research in Canada.","year":2007,"lang":"en","type":"article","venue":"Canadian Journal of Botany","topic":"Plant Water Relations and Carbon Dynamics","field":"Environmental Science","cited_by":88,"is_retracted":false,"has_abstract":true,"ca_institutions":"University of British Columbia","funders":"University of British Columbia","keywords":"Water-use efficiency; Stomatal conductance; Stomatal density; Biology; Photosynthesis; Latitude; Populus trichocarpa; Specific leaf area; Botany; Salicaceae; Transpiration; Nitrogen; Photosynthetic capacity; Horticulture; Agronomy; Woody plant; Chemistry; Geography","routes":{"ca_aff":true,"ca_fund":true,"ca_venue":true,"about_ca":true,"invisible_to_affiliation_only":false},"retraction":null,"screen":null,"direct_labels":[],"prediction":{"model_version":"codex-gemma-dda1882f352a","candidate_categories":["insufficient_payload"],"consensus_categories":[],"category_scores_codex":[0.001778623,0.00006726308,0.0002062794,0.0004230779,0.00003008939,0.00001053922,0.0002162783,0.0000796806,0.001026819],"category_scores_gemma":[0.0001159931,0.00005476661,0.00003918556,0.001532853,0.0001119898,0.0001205882,0.000008529088,0.0003953636,0.000001082289],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0007578612,"about_ca_system_score_gemma":0.0004589625,"about_ca_topic_candidate":true,"about_ca_topic_consensus":true,"about_ca_topic_score_codex":0.7235261,"about_ca_topic_score_gemma":0.986738,"domain_scores_codex":[0.9983695,0.0001975011,0.0005823717,0.0001123153,0.0004519383,0.0002864299],"domain_scores_gemma":[0.9994247,0.0001251693,0.0001988916,0.00008434998,0.00003970175,0.0001272065],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"observational","study_design_gemma":"observational","study_design_scores_codex":[0.000359663,0.0003167627,0.9247875,0.00001868127,0.00002867623,0.0001610733,0.004470722,0.02121374,0.04166779,0.0002660174,0.0009347502,0.005774602],"study_design_scores_gemma":[0.0005024727,0.0002127747,0.995548,0.00004436235,0.000005423004,0.000008970205,0.0003262157,0.001842647,0.0007461873,0.0004544313,0.0002545982,0.00005397372],"study_design_candidate":"observational","study_design_consensus":"observational","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9962441,0.00001842978,0.000002727931,0.0004821907,0.0000573473,0.0001327496,0.00002058862,3.494226e-7,0.003041496],"genre_scores_gemma":[0.9997745,0.00002048364,0.00004813456,0.00007463352,0.00006186573,8.286083e-7,9.083587e-7,0.000003698362,0.00001496603],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.2632118,"threshold_uncertainty_score":0.9998864,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.01236844256672873,"score_gpt":0.2162662274696172,"score_spread":0.2038977849028884,"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."}}