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TLS Online TPP Program

#Id: 5521


#XL - T Zoology #Life Table #Part B Pointers
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TLS Online TPP Program

#Id: 5386

#XL - T Zoology

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: 5387

#XL - T Zoology

Density-dependent factors affect population size in relation to the population’s density.

Density-dependent factors down into two categories. 

Negative density dependence 

Positive density dependence (inverse density dependence
TLS Online TPP Program

#Id: 5485

#XL - T Zoology

Life History Strategies Incorporate Traits Relating to Survival and Competitive Ability.
TLS Online TPP Program

#Id: 5487

#XL - T Zoology

Age at first reproduction
Earlier age →  Later age 
Clutch size
Large clutch size → small clutch size
Small size →  Large size
Trade off
TLS Online TPP Program

#Id: 5489

#XL - T Zoology

Reproductive strategies
1.Semelparity
2.Iteroparity
Semelparity - When organisms reproduce only once during their life
Ex- insects, other invertebrates, and occurs in organisms such as salmon, bamboo grasses, and agave plants
Iteroparity - When organisms reproduce multiple times during their life.
It is common in most vertebrates and perennial plants, such as trees
TLS Online TPP Program

#Id: 5490

#XL - T Zoology

Iteroparity - Repeated reproduction at intervals throughout the life cycle. It is common in most vertebrates and perennial plants, such as trees