Respuesta :
The Boyce and Perrins model takes into consideration year-to-year variability in food supplies as well as variance in survival rates.
What is optimal clutch size?
Brood size experiments were performed to see if clutch size variability in individual (Parus large) was tuned to their phenotypic quality and/or regional food availability (individual optimization hypothesis; IOH).
Some key features regrading the optimal clutch size are-
- Broods with differing original clutch sizes but equal hatching dates were combined to form a single brood. As a control, a 3rd brood was retained.
- We expected a favorable relationship between reproductive success with original clutch size under the IOH.
- After manipulation, fledgling output varied in an uncertain manner, with results from one of three years favoring an IOH.
- In another one of the three years, the impact of manipulation just on likelihood of a second clutch remained consistent with the IOH.
- The IOH could not be proven as a reason for clutch size variation throughout this population based on fitness assessments.
- According to the IOH, one of the three components of fitness examined varied in two of the three years.
As a result, the evidence again for IOH throughout this data set is often weak.
To know more about the clutch size, here
https://brainly.com/question/16403713
#SPJ4
