Census location | Year | Season census done | Chi-square goodness of fit value | Conclusion | |
Wet season | Dry season | ||||
Amboseli | 2010 | 18 | 17 | Χ2 = 0.29, df = 1, p = 0.87 | For 2010, wet season was similar to the dry season number. |
2013 | 13 | 1 | Χ2 = 10.29, df = 1, p < 0.001 | For 2013, wet season number was higher than the dry season number. | |
Chi-square value | Χ2 = 0.81, df = 1, p = 0.37 | Χ2 = 14.22, df = 1, p < 0.001 | For the set of wet season, waterbuck number for 2010 was similar to that of 2013 (i.e. a non-significant decline in number over time in wet season). But for the set of dry season, waterbuck number in 2010 was higher than for 2013 (i.e. waterbuck number was decreasing with time). | ||
Magadi | 2010 | 2 | 6 | Χ2 = 2.00, df = 1, p = 0.16 | For 2010, wet season number was similar to the dry season number, with non-significant more in the dry season. |
2013 | 17 | 16 | Χ2 = 0.30, df = 1, p = 0.86 | For 2013, wet season number was similar to dry season number. | |
Chi-square value | Χ2 = 11.84, df = 1, p < 0.001 | Χ2 = 4.55, df = 1, p = 0.033 | For the set of wet season, waterbuck numbers in 2010 was higher than for 2010 (i.e. waterbuck was increasing with time). Similarly, for the set of dry season, waterbuck number in 2013 was higher than for 2010 (i.e. waterbuck was also increasing in the dry season). | ||
West Kilimanjaro | 2010 | 2 | 0 | No test necessary. | Waterbucks seen only in the wet season of 2010 and not dry season of 2010. |
2013 | 0 | 0 | No test necessary. | No waterbuck seen in West Kilimanjaro in 2013. | |
Chi-square value | No test necessary. | No test necessary. | Waterbuck seen only in the wet season of 2010 and not in other census periods. | ||
Natron | 2010 | 14 | 0 | No test necessary. | For 2010, waterbuck was seen only in the wet season but not in the dry season. |
2013 | 0 | 1 | No test necessary. | For 2013, only one waterbuck was seen only in the dry season, but none in the wet season. | |
Chi-square value | No test necessary. | No test Necessary. | For the set of wet season, waterbuck was only seen in 2010 and not 2013, implying a decline. But in the set of dry season, only one waterbuck was seen in 2013 and not 2010, implying a re-colonization. |