soal life table life table

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exercise of animal ecology

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PLEASE COMPLETE THIS LIFE TABLE Life Table for the Carp Cyprinus carpio at the one pool in Kenjeran, Surabaya, East Java*Age(yr) (x)Observed No. Cyprinus alive Each Year (nx)Proportion Surviving ar Start of Age Interval x (lx)No. Dying Within Age Interval x to x + 1 (dx)Rate of Mortality (qx)Mean Expectation of Further Life for Animals Alive at Start of Age x (ex)

01861,000900,4842,032

1960,516380,396?

2580,311160,276?

3420,226180,429?

4240,13040,167?

5200,108(3,5)0,175?

6(16,5)**0,089(3,5)0,212?

7130,070(3,5)0,269?

8(9,5)**0,051(3,5)0,368?

960,03261.000?

1000,000--?

* Data is made just for example ** Estimated number alive

PLEASE COMPLETE THIS LIFE TABLE Life Table for the Carp Cyprinus carpio at the one pool in Kenjeran, Surabaya, East Java*Age(yr) (x)Observed No. Cyprinus alive Each Year (nx)Proportion Surviving ar Start of Age Interval x (lx)No. Dying Within Age Interval x to x + 1 (dx)Rate of Mortality (qx)Mean Expectation of Further Life for Animals Alive at Start of Age x (ex)

0186?90??

196?38??

258?16??

342?18??

424?4??

520?(3,5)??

6(16,5)**?(3,5)??

713?(3,5)??

8(9,5)**?(3,5)??

96?6??

100?-??

* Data is made just for example ** Estimated number alive

Keterangan:x: umur (dalam tahun)nx: jumlah hewan yang hidup awal tahunlx: proporsi hewan yang hidupdx: jumlah hewan yang mati dalam 1 tahunqx: laju kematianex: angka harapan hidup (dalam 1 tahun)

Rumus yang digunakan:

Untuk mendapatkan ex maka dibutuhkan data L dan T, sehingga untuk memudahkan dibuat table bantuan berisi data L dan T sehingga ex bisa dihitung menggunakan rumus diatas.contoh:

Jawabanxnxlxdxqxex

01861.000900.4842.032

1960.516380.3962.469

2580.311160.2762.759

3420.226180.4292.620

4240.13040.1673.208

5200.108(3,5)0.1752.750

6(16,5)0.089(3,5)0.2122.227

7130.070(3,5)0.2701.692

8(9,5)0.051(3,5)0.3681.131

960.08261.0000.316

1000.000---

Table data bantuan Lx dan Tx :xnxLxTxex

01861413782.032

196772372.469

258501602.759

342331102.620

42422773.208

52018.25552.750

6(16,5)14.7536.752.227

71311.25221.692

8(9,5)7.7510.751.131

96330.316

10000-

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