QUESTION 1 Table 8.3 Cohort life table for the song sparrow on Mandarte Island,

Question

QUESTION 1 Table 8.3 Cohort life table for the song sparrow on Mandarte Island, Briish Columbia. Age in Observed no. of birds Proportion surviving at start No dying within age Rate of mortality years alive of age interval x interval x tox + 1 115 90 0.217 0.165 0,104 0.017 0,009 0.0 0.78 0.24 0.37 0.83 0.50 1.0 19 12 .omowed from hatching tíntil all had died six years la. SOURCE: From Smith (1988). According to this life table, during which age class did the most birds die? 0 1 Sond submit Chiok Save All Answers to save al

Explanation / Answer

According to this life table, during 3 years age class most birds die.

During this period the rate of mortality is high (0.83) after that it fall down. Because the predators are actively feed upon the offspring birds. They are helpless at this stage. They can not efficiently fly to save our life.

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