Fig 6 -1 The range of population density

Fig. 6 -1. The range of population density (biomass per hectare) of various species of mammals.

Fig. 6 -2. Survivorship curve for the data tabulated in Table 6 -1 for Dall mountain sheep,

Fig. 6 -3. types of survivorship curves.

Fig. 6 -4 Survivorship curves for two stable mule deer populations.

Fig. 6 -5. Age pyramids (A) three types of age pyramids.

Fig. 6 -6. Population age pyramids for different human populations.

Fig. 6 -7. Age distribution in the commercial catch of herring in the North /sea between 1907 and 1919, illustrating the dominant age class phenomenon.

Fig. 6 -8. (A) population growth curve

Fig. 6 -8. (B) rate of increase growth curve for the same hypothetical population during the same interval of time.

Fig. 6 -9. hypothetical examples of (A) J-shaped growth curves.

Fig. 6 -9. hypothetical examples of (A) Sshaped growth curves.

Fig. 6 -10. Curves showing theoretical upper and lower growth forms for any population.

Fig. 6 -12. Graph depicting the various phases of the modified sigmoid growth curve.

Fig. 6 -15. the snaowshoe hare (Lepus americanus), with (A) summer and (B) winter pelage.

Fig. 6 -18. Modified version of the Chitty. Krebs genetic feedback (A) hypotheses to explain population pulses in microtine rodents.

Fig. 6 -18. Modified version of the Chitty. Krebs food quality (B) hypotheses to explain population pulses in microtine rodents.

Fig. 6 -20. Three types of population-level pulsing

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