"Répartition des valeurs lambda au niveau des espèces par groupe d'espèces, 1970 à 2023",,,,,,,,,,,, ,,,,,,,,,,,, Année,"Indice des oiseaux, lambda moyen","Indice des oiseaux, écart-type","Indice des oiseaux, nombre d'espèces","Indice des mammifères, lambda moyen","Indice des mammifères, écart-type","Indice des mammifères, nombre d'espèces","Indice des poissons, lambda moyen","Indice des poissons, écart-type","Indice des poissons, nombre d'espèces","Indice des reptiles et des amphibiens, lambda moyen","Indice des reptiles et des amphibiens, écart-type","Indice des reptiles et des amphibiens, nombre d'espèces" 1970,s/o,s/o,325,s/o,s/o,27,s/o,s/o,84,s/o,s/o,s/o 1971,0.00132,0.0202,325,-0.0416,0.12592,32,0.02557,0.08604,91,s/o,s/o,s/o 1972,0.00092,0.01813,326,-0.03537,0.12047,33,0.01699,0.07101,82,s/o,s/o,s/o 1973,0.00059,0.01894,328,-0.03094,0.11527,39,0.00757,0.06589,97,s/o,s/o,s/o 1974,0.00054,0.02195,329,-0.0476,0.12108,36,0.00544,0.05725,107,s/o,s/o,s/o 1975,0.00024,0.02437,329,-0.0295,0.11106,34,0.00279,0.05667,94,s/o,s/o,2 1976,-0.00089,0.02571,331,-0.0116,0.09298,32,-0.00152,0.05239,104,-0.07,0.10228,2 1977,-0.00192,0.02533,331,-0.00095,0.12731,39,-0.0035,0.05262,103,-0.07343,0.09742,2 1978,-0.00185,0.02232,333,0.0183,0.09441,28,-0.00443,0.05766,108,-0.00793,s/o,2 1979,-0.00037,0.02068,335,0.01275,0.0625,30,-0.00203,0.05268,113,0.00407,0.0077,1 1980,0.00097,0.02123,353,0.0138,0.06965,30,-0.00243,0.0466,117,0.00841,0.00156,1 1981,0.00078,0.02206,353,0.01159,0.06981,30,-0.00294,0.04996,119,0.00883,0.00096,1 1982,-0.00033,0.02019,353,-0.00863,0.09771,31,-0.00326,0.05857,122,0.00739,0.003,2 1983,-0.00106,0.02001,353,-0.00837,0.10189,27,-0.00212,0.05965,128,0.04125,0.05529,2 1984,-0.00094,0.01934,357,0.00291,0.07924,31,-0.00025,0.05529,159,-0.00244,0.04119,2 1985,-0.00064,0.01838,357,0.00039,0.0556,32,0.00109,0.04624,131,-0.01141,0.0355,7 1986,-0.00035,0.01842,357,-0.00005,0.04871,30,-0.00577,0.06118,145,0.01899,0.08626,7 1987,0.00045,0.01907,358,-0.00363,0.04606,40,-0.01052,0.061,162,-0.00013,0.05505,8 1988,0.00153,0.02092,358,0.01655,0.09093,39,-0.01217,0.0638,135,-0.00204,0.04674,7 1989,0.00157,0.01963,358,0.0171,0.07305,42,-0.01409,0.06454,159,-0.00725,0.03867,7 1990,0.00008,0.01917,359,0.01731,0.07186,48,-0.01262,0.0581,134,0.04207,0.15307,11 1991,-0.00151,0.02659,360,0.00146,0.10116,45,-0.00985,0.04937,157,0.02066,0.12402,13 1992,-0.00199,0.02762,360,-0.00547,0.10114,46,-0.00663,0.05129,148,0.01709,0.09038,14 1993,-0.00189,0.02438,360,-0.00107,0.06954,54,0.00577,0.08234,179,0.00488,0.10464,16 1994,-0.00251,0.02331,360,0.00733,0.07412,56,0.01528,0.0905,161,-0.01161,0.15581,18 1995,-0.00338,0.02499,361,0.0211,0.08641,58,0.00783,0.08202,152,-0.03949,0.09947,18 1996,-0.00305,0.02422,361,0.03294,0.09405,55,-0.00045,0.07532,155,-0.00457,0.03344,21 1997,-0.00217,0.02463,361,0.02127,0.08006,62,-0.00851,0.07687,132,0.00239,0.0432,23 1998,-0.00251,0.02383,361,0.00028,0.06852,60,-0.0124,0.09108,164,0.00184,0.14475,25 1999,-0.0044,0.02099,361,-0.00984,0.06814,63,-0.00821,0.06632,151,0.01453,0.13073,27 2000,-0.00575,0.02256,362,-0.01218,0.07456,62,-0.0046,0.05995,180,0.01643,0.06059,24 2001,-0.00538,0.02328,362,-0.01737,0.06952,66,0.006,0.09447,162,0.02068,0.0564,25 2002,-0.00332,0.02251,362,-0.01275,0.06184,62,0.0008,0.09199,183,0.02963,0.05817,24 2003,-0.00167,0.01907,362,0.00001,0.07101,58,-0.00415,0.0716,228,0.02478,0.05101,24 2004,-0.00057,0.01978,362,0.01419,0.06437,52,-0.00514,0.06063,254,0.01187,0.0405,25 2005,0.00032,0.02043,362,0.01737,0.04876,54,-0.00264,0.06527,280,-0.00198,0.04871,25 2006,0.00011,0.02205,362,0.01553,0.04894,55,-0.00314,0.06448,270,-0.01957,0.05652,27 2007,-0.00209,0.02277,362,0.008,0.04058,59,-0.0008,0.0518,299,0.00937,0.05161,20 2008,-0.00482,0.0246,362,-0.00528,0.04528,48,-0.00187,0.05465,277,0.00916,0.04346,17 2009,-0.00543,0.02316,362,-0.0167,0.06351,49,-0.002,0.05164,280,0.00659,0.04873,17 2010,-0.0036,0.01869,361,-0.02386,0.0681,54,-0.00197,0.05232,276,-0.00464,0.05302,16 2011,-0.0017,0.01976,360,-0.02961,0.0818,51,-0.00204,0.05273,287,-0.00149,0.03916,15 2012,-0.00123,0.01989,360,-0.02382,0.09805,44,-0.00411,0.05252,283,0.00858,0.02646,14 2013,-0.00134,0.02129,360,-0.00133,0.08116,46,-0.00127,0.05062,266,0.00851,0.02973,15 2014,-0.00077,0.01917,360,-0.01091,0.07953,45,0.0017,0.05732,259,-0.00677,0.05269,13 2015,-0.00029,0.01878,360,-0.00247,0.08057,33,0.00372,0.05623,268,-0.0096,0.0534,16 2016,-0.00122,0.01944,359,0.00044,0.0509,31,0.00486,0.05873,259,-0.01109,0.06434,17 2017,-0.00297,0.02072,359,0.00558,0.04795,32,-0.00046,0.05685,188,-0.02184,0.07627,17 2018,-0.00362,0.02485,356,-0.00345,0.05001,29,-0.00042,0.04573,198,-0.11276,0.18899,11 2019,-0.00288,0.03007,353,-0.01047,0.08701,21,0.0037,0.04467,179,0.01956,0.04446,4 2020,-0.00224,0.02293,322,-0.00179,0.08695,25,0.00563,0.06447,149,-0.00092,0.03921,3 2021,-0.00057,0.02456,322,0.03214,0.08386,25,0.00122,0.06765,169,-0.00837,0.04512,3 2022,-0.00079,0.02514,246,0.06707,0.12915,21,-0.00886,0.12237,123,0.00594,0.03409,3 2023,-0.00015,0.02902,241,0.06296,0.06469,6,-0.00916,0.0565,59,0.00887,0.04769,2 ,,,,,,,,,,,, Remarque : s/o = sans objet.,,,,,,,,,,,, Source : Zoological Society of London (2026).,,,,,,,,,,,, Disponible sur le site Web des Indicateurs environnementaux (www.canada.ca/indicateurs-environnementaux).,,,,,,,,,,,,