Ch 36 ppt

Introduced Species? ,[object Object],[object Object],[object Object]

Ecology ,[object Object],[object Object],[object Object],[object Object]

What can we learn about the moose population in Maine from these graphs? AET: Average evapotranspiration rates

Density and dispersion patterns are important population variables ,[object Object],[object Object],[object Object]

Life Tables ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Characteristics of organisms which are extreme r or K strategists: ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Oyster, Hydra, Songbird…Man ,[object Object],[object Object],[object Object],[object Object]

[object Object],[object Object],[object Object],[object Object],0 Figure 36.4A Exponential Growth Time Number of Cells 0 minutes 20 40 60 80 100 120 (= 2 hours) 3 hours 4 hours 8 hours 12 hours 1 2 4 8 16 32 64 512 4,096 16,777,216 68,719,476,736 = 2 0 = 2 1 = 2 2 = 2 3 = 2 4 = 2 5 = 2 6 = 2 9 = 2 12 = 2 24 = 2 36 Number of bacterial cells ( N ) 70 60 50 30 40 20 10 0 0 20 40 60 80 100 120 140 G = r N Time (min)

[object Object],[object Object],[object Object],[object Object],0 Factors Affecting Population Growth: Density Dependent Limiting Factors 4.0 3.6 3.8 3.4 3.2 3.0 2.8 0 10 20 30 40 50 60 70 80 Density of females Clutch size Figure 36.5A

[object Object],0 Density Independent Limiting Factors

Grey Seals @ Sable Island ,[object Object],[object Object]

[object Object],[object Object],[object Object],0 Breeding male fur seals (thousands) 10 8 6 4 2 0 1915 1925 1935 1945 Year Figure 36.4B

[object Object],[object Object],[object Object],0 Figure 36.4C Another Type of Population Growth Pattern…. ,[object Object],Number of individuals ( N ) K 0 Time G = r N G = r N (K – N) K

Boom & Bust: Eastern Tent Caterpillar R-Selection Characteristics: High reproduction early in life Lots of offspring High mortality Type III Survivorship C Exponential growth in favorable conditions M. americanum Species: Malacosoma Genus: Lasiocampinae Subfamily: Lasiocampidae Family: Lasiocampoidea Superfamily: Macrolepidoptera (unranked) Lepidoptera Order: Insecta Class: Arthropoda Phylum: Animalia Kingdom:

or then there is…K Selection ,[object Object],[object Object],[object Object]

Intraspecific Competition! P. caudatum P. aurelia

Aquaculture Sustainable Resource Management ,[object Object]

Ch 36 ppt

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Ch 36 ppt