Figure 52.1. 01_p010.jpg 01_01b.jpg Community 01_01a.jpg.

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Presentation transcript:

Figure 52.1

01_p010.jpg

01_01b.jpg Community

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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 limit its distribution? No Yes Physical factors Chemical factors Area inaccessible or insufficient time Habitat selection Predation, parasitism, competition, disease Temperature, light, soil structure, fire, moisture, etc. Water, oxygen, salinity, pH, soil nutrients, etc.

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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 limit its distribution? No Yes Physical factors Chemical factors Area inaccessible or insufficient time Habitat selection Predation, parasitism, competition, disease Temperature, light, soil structure, fire, moisture, etc. Water, oxygen, salinity, pH, soil nutrients, etc.