The figure on the right illustrates differences in clutch size
across the breeding range for Northern flickers. Explain why
you see such differences especially with reference to Ashmole’s
hypothesis which is also shown
30 N-411 20 Relative frequency (%) 10- 1 2 3 4 5 6 7 8 9 10 11 12 Clutch size
Temperate climates Tropical climates Resource level in breeding season Resources available for reproduction Resource availability Adult population regulated by resource level in non-breeding season D'J'F'M'A'M'U'J'A's A SON Annual cycle (months)
The figure on the right illustrates differences in clutch size across the breeding range for Northern flickers. Explain
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