TABLE 1. Chi-square tests evaluating differences between the samples of murids of the different fossil assemblages from MCC. In light gray the moderately significant differences (0.05<p<0.1), in dark grey the highly significant differences (p<0.05); df: degrees of freedom; 5df when Stephanomys sp. is absent in both layers.
MCC3 | MCC3/4 | MCC4 | MCC4/5 | MCC5 | MCC7 | |||||||
MCC3 | - | Χ^{2} =2.2377 | df:6 | Χ^{2} =8.4798 | df:6 | Χ^{2} =12.401 | df:6 | Χ^{2} =17.58 | df:6 | Χ^{2} =32.087 | df:6 | |
p=0.897 | p=0.205 | p=0.053 | p=0.007 | p<0.001 | ||||||||
MCC3/4 | Χ^{2} =2.2377 | df:6 | - | Χ^{2} =3.5915 | df:5 | Χ^{2} =5.3069 | df:5 | Χ^{2} =10.852 | df:5 | Χ^{2} =24.571 | df:5 | |
p=0.90 | p=0.732 | p=0.380 | p=0.055 | p<0.001 | ||||||||
MCC4 | Χ^{2} =8.4798 | df:6 | Χ^{2} =3.5915 | df:5 | - | Χ^{2} =5.604 | df:6 | Χ^{2} =18.06 | df:6 | Χ^{2} =58.075 | df:6 | |
p=0.21 | p=0.732 | p=0.469 | p=0.006 | p<0.001 | ||||||||
MCC4/5 | Χ^{2} =12.401 | df:6 | Χ^{2} =5.3069 | df:5 | Χ^{2} =5.604 | df:6 | - | Χ^{2} =5.789 | df:5 | Χ^{2} =29.853 | df:5 | |
p=0.053 | p=0.380 | p=0.469 | p=0.328 | p<0.001 | ||||||||
MCC5 | Χ^{2} =17.58 | df:6 | Χ^{2} =10.852 | df:5 | Χ^{2} =18.06 | df:6 | Χ^{2} =5.789 | df:5 | - | Χ^{2} =9.6227 | df:5 | |
p=0.007 | p=0.055 | p=0.006 | p=0.328 | p=0.087 | ||||||||
MCC7 | Χ^{2} =32.087 | df:6 | Χ^{2} =24.571 | df:5 | Χ^{2} =58.075 | df:6 | Χ^{2} =29.853 | df:5 | Χ^{2} =9.6227 | df:5 | - | |
p<0.001 | p<0.001 | p<0.001 | p<0.001 | p=0.087 |
TABLE 2. Number of specimens and taxa of small mammals found at Moncucco Torinese with value of the diversity (Shannon) index for each studied sample. Chiropterans are excluded.
MCC3 | MCC3/4 | MCC4 | MCC4/5 | MCC5 | MCC7 | Total | |
Specimens (N) | 257 | 235 | 1262 | 784 | 604 | 543 | 3685 |
Taxa (N) | 16 | 16 | 18 | 17 | 16 | 18 | 24 |
Shannon (H’) | 2.094 | 2.141 | 2.063 | 2.177 | 2.151 | 2.193 | 2.157 |
TABLE 3. Estimated paleoclimatic values of MCC according to three different methodologies based on small mammals (see Material and methods for further details). MAP: Mean Annual Precipitation; MINP: Precipitation in the driest month; MAT: Mean Annual Temperature; MTW: Mean Temperature of the Warmest month; MTC: Mean Temperature of the Coldest month; SE: Standard Error.
Methodology | Hernández Fernández (2001) | Van Dam (2006) | Montuire et al. (2006) | |||
Proxy | Rodents | Small mammals | Murids | |||
Results | SE | Results | SE | Results | SE | |
MAP | 967.9 mm | ±470.6 mm | 849.8 mm | ±350-400 mm | - | - |
MINP | - | - | 41.5 mm | ±17-19 mm | - | - |
MAT | 16.2° C | ±3.6° C | - | - | 17.2° C | ±4.8°C |
MTW | 24.4° C | ±4.7° C | - | - | - | - |
MTC | 8.2° C | ±5.1° C | - | - | - | - |