Ejection fraction is the fraction of the end-diastolic volume ejected in each stroke volume, which is a measure of ventricular efficiency.

TLS Online TPP Program

#Id: 9116

#Unit 10. Ecological Principles

The prey zero isocline 

A specific number of predators will keep the prey population at zero growth.

P=r/s

TLS Online TPP Program

#Id: 9117

#Unit 10. Ecological Principles

The number of predators, P, increase when prey numbers are high and decrease when prey numbers, N

TLS Online TPP Program

#Id: 9118

#Unit 10. Ecological Principles

The predator zero isocline

A specific number of prey will keep the predator population at zero growth.

N=m/es

TLS Online TPP Program

#Id: 9119

#Unit 10. Ecological Principles

TLS Online TPP Program

#Id: 9120

#Unit 10. Ecological Principles

I-Predator carrying capacity: Predator can no longer drive prey to extinction. Stable coexistence

TLS Online TPP Program

#Id: 9121

#Unit 10. Ecological Principles

II- if a predator has multiple prey

If prey abundances are not strongly positively correlated then as one prey species becomes scarce, the predator can continue to feed and increase its population size