Density-independent factors limit population size regardless of the population’s density.

Common density-independent factors include natural disasters such as tornadoes, hurricanes, floods, and fires.

TLS Online TPP Program

#Id: 8426

#XL - T Zoology

Senescence - A gradual decrease in fecundity and an increase in the probability of mortality.

TLS Online TPP Program

#Id: 8427

#XL - T Zoology

Principle of allocation - The observation that when resources are devoted to one body structure, physiological function, or behavior, they cannot be allotted to another. 

TLS Online TPP Program

#Id: 8428

#XL - T Zoology

Natural selection will favor those individuals that allocate their resources in a way that achieves maximum fitness.

TLS Online TPP Program

#Id: 8429

#XL - T Zoology

Trade off - A giving up of one thing in return for another.

Causes of trade off

More mortality in their offspring 

Limitation of food

TLS Online TPP Program

#Id: 8430

#XL - T Zoology

1. OFFSPRING NUMBER VERSUS OFFSPRING SIZE

2. OFFSPRING NUMBER VERSUS PARENTAL CARE

3. FECUNDITY AND PARENTAL CARE VERSUS PARENTAL SURVIVAL

TLS Online TPP Program

#Id: 8431

#XL - T Zoology