Survivorship Curves for Males and Females from Chester Rural Cemetery
Chester, Delaware County, Pennsylvania, USA
    (sub-sets of data plotted who died before vs. after 1950)

collected by Widener University Bio 154 students
posted by Bruce W. Grant, Department of Biology, Widener University, Chester, PA  19013
voc: 610-499-4017, fax:610-499-4059, grant@pop1.science.widener.edu
this page updated: 1/3/98, and is a contribution to the Ecological Society of America's EdWeb educational efforts.

Note:   these data are from a cemetery that is no longer "rural" and is in fact nested amidst one of the most densly
                  populated areas in the eastern USA in the Philadelphia, PA, -  Wilmington, DE, corridor.}


 
survivorship table for males and females who died before and after 1950 (Chester Rural Cemetery)
 
ages females (<1950) males (<1950) females (>1950) males (>1950)
0-4 1.0000 1.0000 1.0000 1.0000
5-9 0.9209 0.9299 0.9979 0.9855
10-14 0.8972 0.9030 0.9958 0.9814
15-19 0.8924 0.8970 0.9958 0.9793
20-24 0.8687 0.8731 0.9937 0.9731
25-29 0.8497 0.8418 0.9811 0.9648
30-34 0.8196 0.8149 0.9768 0.9524
35-39 0.7801 0.7955 0.9747 0.9441
40-44 0.7326 0.7403 0.9663 0.9296
45-49 0.6978 0.6821 0.9558 0.9130
50-54 0.6503 0.6418 0.9453 0.8965
55-59 0.5870 0.5687 0.9053 0.8468
60-64 0.5079 0.4731 0.8526 0.7660
65-69 0.4320 0.3761 0.7726 0.6563
70-74 0.3418 0.2701 0.6758 0.5259
75-79 0.2089 0.1701 0.5305 0.3851
80-84 0.1218 0.0925 0.3937 0.2360
85-89 0.0633 0.0358 0.2358 0.1139
90-94 0.0127 0.0104 0.1242 0.0518
95-99 0.0000 0.0015 0.0526 0.0124
100-104 0.0000 0.0015 0.0042 0.0021
105-109 0.0000 0.0000 0.0042 0.0000
 

survivorship curve for males and females who died before and after 1950 (Chester Rural Cemetery)

ChartObject Chart 1