figure 52.1. 01_p010.jpg 01_01b.jpg community 01_01a.jpg

Figure 52.1

01_p010.jpg

01_01b.jpg

Community

01_01a.jpg

Figure 52.UN01

Why is species X absent from an area?

Does dispersal limit its distribution?

Does behavior limit its distribution?

Do biotic factors (other species)limit its distribution?

Do abiotic factors limitits distribution?

No

No

No

Yes

Yes

Yes

Physicalfactors

Chemicalfactors

Area inaccessible orinsufficient time

Habitat selection

Predation, parasitism,competition, disease

Temperature, light, soilstructure, fire, moisture,

etc.

Water, oxygen, salinity,pH, soil nutrients, etc.

01_02.jpg

01_03.jpg

01_04.jpg

01_05.jpg

01_06.jpg

01_07.jpg

01_08.jpg

01_09.jpg

01_10.jpg

Figure 52.UN01

Why is species X absent from an area?

Does dispersal limit its distribution?

Does behavior limit its distribution?

Do biotic factors (other species)limit its distribution?

Do abiotic factors limitits distribution?

No

No

No

Yes

Yes

Yes

Physicalfactors

Chemicalfactors

Area inaccessible orinsufficient time

Habitat selection

Predation, parasitism,competition, disease

Temperature, light, soilstructure, fire, moisture,

etc.

Water, oxygen, salinity,pH, soil nutrients, etc.