Models for Population Growth Curves

Table 5

Contrasting the 5 integrated models using AIC_𝑐 and Δ_𝑡. Zeros indicate minimum AIC_𝑐 (15).

Species		Sample size	Generalized logistic	Modified logistic	Logistic	Exponential	Gompertz
Red deer 6585	Cervus elaphus	13	0	0.85	13.77	13.14	13.46
Gray seals [1]	Halichoerus grypus	16	0	2.17	10.67	15.21	4.62
Beaver 156	Castor canadensis	46	0	0.84	10.41	52.9	6.34
Polar bear 143	Ursus maritimus	51	0	6.3	6.3	72.75	no fit
Boar 9428	Sus scrufa	14	2.78	0	9.37	28.37	5.2
Gray fox 319	Urocyon cineroargenteus	12	1.95	0	12.4	37.79	no fit
Gray fox 342	Urocyon cineroargenteus	12	4.81	0	7.2	27.4	no fit
Coyote 247	Canis latrans	11	4.46	0	1.84	22.88	no fit
Coyote 263	Canis latrans	17	3.1	0	35.68	165.69	no fit
Elephant seals [3]	Mirounga angistirostris	26	1.16	0	10.25	61.16	13.95
Gray fox 328	Urocyon cineroargenteus	12	4.81	0	0.38	13.75	2.29
Badger 78	Taxidea tasus	15	2.97	0	12.37	8.47	6.71
Fur seals [9]	Callorhinus ursinus	12	3.57	0	8.37	3.47	3.47
Blue springs manatees [10]	Trichechus manatus	19	1.6	0	7.6	0.7	0.7
Boar 9429	Sus scrufa	14	3.26	0	36.04	35.97	5.09
Camargue horses [5]	Equs caballus	8	7.34	0	4.53	16.97	8.6
Przewalski horses [5, 7]	Equs ferus	8	14.09	0	2.1	4.18	7.67
Marten 9695	Martes americana	25	1.27	0	0.99	13.37	0.27
Squirrel 9699	Sciuris verginianus	25	1.27	1.27	0	18.23	0.65
Bison [2]	Bison bison	13	1.28	0.26	0	23.29	0.51
Seneca deer [4]	Odocoileus virginianus	11	2.58	5.73	0	40.94	3.52
Gentoo penguins**	Pygoscelis papua	12	5.24	5.77	0	31.14	4.4
Beaver 151	Castor canadensis	44	4.73	0.8	0	13.94	no fit
Chinstrap penguins**	Pygoscelis antarcticus	22	2.77	2.22	0	62.75	0.05

**Fraser, pers. comm.