From: Do social groups prevent Allee effect related extinctions?: The case of wild dogs
Abundance (x) ⇒ | Pack size | Population size | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Fitness trait (y) ⇓ | R | E | N1 | N2 | χ2 | P | fit (y =) | SE | N1 | N2 | χ2 | P |
Litter size | Y | N | 34 | 16 | 4.49 | 0.034 | 4.328 + 0.411x | 0.857, 0.110 | 34 | 16 | 3.49 | 0.062 |
Per Capita productivity | Y | N | 46 | 16 | 7.60 | 0.006 | – 0.317 + 0.163x | 0.090, 0.027 | 46 | 16 | 2.42 | 0.120 |
6.42 | 0.011 | - 0.008x2 | 0.002 | |||||||||
Survival of adults | Y | B | 47 | 17 | 1.55 | 0.214 | 47 | 17 | 0.00 | 0.981 | ||
Survival of yearlings | Y | B | 25 | 12 | 0.55 | 0.457 | 25 | 12 | 0.94 | 0.332 | ||
Survival of pups | Y | B | 38 | 17 | 8.83 | 0.003 | - 4.515 + 0.931x | 1.005, 0.198 | 38 | 17 | 1.17 | 0.280 |
7.28 | 0.007 | - 0.040 x2 | 0.009 | |||||||||
Survival of dispersers | Y | B | 17 | 9 | 4.38 | 0.036 | - 0.873 + 0.346x | 0.978, 0.117 | 21 | 11 | 0.18 | 0.673 |
Pack growth rate | Y | N | 34 | 16 | 4.73 | 0.030 | 0.115 + 0.266x | 0.147, 0.044 | 34 | 16 | 0.95 | 0.329 |
4.55 | 0.033 | - 0.013x2 | 0.002 | |||||||||
Pack life span | N | N | 18 | 11.96 | <0.001 | 11.467 + 3.874x | 6.099, 0.940 | 18 | ||||
Pack formation* | N | N | 13 | 8.99 | 0.003 | - 0.630 + 0.409x | 0.598, 0.114 | 13 | 1.03 | 0.311 | ||
Population growth rate** | N | N | 12 | 2.39 | 0.122 |