Now consider the comparable graph of ant species richness in the same plots as t

Question

Now consider the comparable graph of ant species richness in the same plots as the vegetation study (Flgure 6, based on Figure 2 from Rocha-Ortega & Favila 2013). Note that specics. ichness is denoted by.tbe red circles and estimated species richness for old-growth forest is indicated by the green circle in the upper left-hand corner. 90 r 80 70 50 F 40 20 E 10- 0 21 26 Mature 6 forest 16 Years since abandonment Figure 6.A simple linear regression analysis of the richness of ant species in the abandoned maize field parcels in diffcrent stages of tropical forest succession in the Lacaodon region of Mexico. Estimate the rate of increase in species richness from the regression line (red line) from years 6-26. Based on your estimate, how long is it likely to take to attain the full species richness of the old-growth forest for ant species? How does this estimate for ant specles compare to the estimate of the number of years to attain comparable old-growth species richness of the woody plants (see your answer to Question 2)?

Explanation / Answer

answer 1 at 6 th year number of species = 25

at 26 th year number of species = 45

rate of enrichment = (45-25)/(26-6)=1 species /yr

answer 2 at 0 yr number of species is = 19

number of species in old forest is== 82

so if enrichment rate is 1species/yr it will take 73 year for old growth forest enrichment.

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