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.}



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)