Ecological Archives A025-009-A6
Alexandre Robert, Stéphane Chantepie, Samuel Pavard, François Sarrazin, and Céline Teplitsky. 2015. Actuarial senescence can increase the risk of extinction of mammal populations. Ecological Applications 25:116–124. http://dx.doi.org/10.1890/14-0221.1
Appendix F. Magnitudes of demographic changes associated with actuarial senescence: effect of taxonomy.
Statistical relationships between taxonomy and our four indices of changes in population dynamics were investigated using the order as a categorical explanatory variable (58 mammal species belonging to the Artiodactyla, Carnivora, Cetacea, Chiroptera, Lagomorpha, Perissodactyla, Primate, Rodentia, Scandentia, and Soricomorpha orders).
Results of the analysis of variance are presented below.
Dependent variable |
F value |
P value |
Δλ |
0.89 |
0.56 |
ΔT |
2.98 |
0.007 |
ΔR0 |
2.92 |
0.008 |
ΔText |
4.22 |
0.00045 |
Pairwise differences in ΔText among orders were further investigated using post hoc Tukey test. The analysis revealed that the global difference among orders is only due to differences between primates and other orders. Among all possible pairs of orders, statistically different pairs are listed below.
Statistically different pairs |
P value |
Primates-Artiodactyla |
0.000028 |
Primates-Carnivora |
0.000077 |
Primates-Cetacea |
0.051 |
Primates-Chiroptera |
0.00073 |
Primates-Lagomorpha |
0.009 |
Primates-Perissodactyla |
0.012 |
Rodentia-Primates |
0.000035 |
Soricomorpha-Primates |
0.0041 |