Question

I need help with this excercise.

its for population parameters for Terrestrial Ecology.

points) Life Tables and Survivorship Curves Life Table for the 1978 cohort of Geospiza scandens on Isla Daphne (Galapagos) Age Class n. 1d. 0-1 210 1-2 91 2-3 78 70 4-5 65 5-6 62 6-7 42 7-8 23 8-9 15 9-10 14 10-11 11 11-12 10 12-13 4 133 Survivorship Curve for 1978 Cohort of Geospiza scandens * 0.1 0.01 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Age Class (years) What is the life expectancy of a cactus finch that is 9 years old? Age Class , L.T.C. 0-1 210 1-2 91 2-3 78 3-4 70

Answer 1

The life expectancy of finch in 9 years will be 2.5 .and the curve will be type 3
The life expectancy of a cactus finch in 9 years old will be 2.5(ex) for this We have to first calculate different dată for making life table and have to plot it in graph. So curve is Type lè, most individual die at young age. scale) log nx 1 2 3 4 5 6 7 V 8 9 10 11 12 13 Age class (gears)

AGE nac x Te es 0- 150.5 593 २10 २.82 4.86 । -2 . 84.5 442.5 9 78 २- 3 74 358 4.56 20 62.5 3.54 3-4 4-5 5-6 २५४ २।6.5 65 63.5 3. 33 62 52 153 २.46 6-2 42 32.5 /0) २.५० २.११ 7-8 23 19 68.5 8-9 15 14.5 49.5 9-10 14 12.5 35 3.3 २.5 २.04 10-11 10.5 २२.5 // -12 10 ।.२ 12-13 3.5 |.25 13 - 6 0.5 1.5 N