Pointers

TLS Online TPP Program

#Id: 4968

Very Low Fluence (VLF) Responses

It sensitive to low levels of light (0.1 nmol m -2 . Less than 0.02% is Pfr). These are not photo-reversible and saturate at 50 nmol m -2 . Some examples include;
a) mesocotyl elongation in cereals; and
b) Arabidopsis seed germination

#Unit 6. System Physiology – Plant #Mechanisms of action of Phytochromes #Part B Pointers

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#Id: 5383

#Unit 10. Ecological Principles

Age-specific fertility rate - Any given age, Proportion of female offspring that are born to females of reproductive age.

#Id: 5384

#Unit 10. Ecological Principles

Thermodynamic hypothesis

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#Unit 10. Ecological Principles

Populations have growth limits

Categorize these limits as being either density independent or density dependent.

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#Unit 10. Ecological Principles

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.

#Id: 5387

#Unit 10. Ecological Principles

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

#Id: 5485

#Unit 10. Ecological Principles