Chapter 10: Population Dynamics

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POPULATION GROWTH.

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Presentation transcript:

Chapter 10: Population Dynamics B A 13 C D

Chapter 10: Population Dynamics 12 t Nt = Noert Nt = No

1 2

3

4

Consequences? Why?

Sea Lamprey Invasion

Sea Lamprey Invasion 1

Lamprey and Lake Trout Populations http://www.nature.com/nchembio/journal/v1/n6/images/nchembio1105-316-F1.gif

5 Chinch Bug (Blissus leucopterus)

6

Fig. 14-10 in Ricklefs 2000

Populations are Dynamic!! 7

8 d b 9

DISPERSAL 10 i - immigration e - emmigration

= f (b, d, i, e) N

“The Wild, Wacky World of Dispersal” Fig. 10.2 in Molles 2006

Dispersal: Drift

Dispersal: Drift Fremont Cottonwood

Dispersal: Animal Vectors 5 4 5

Dispersal: Explosive 7 8 Zygomycete Fungus: Pilobolus

Dispersal: Natal 12 11

Measuring Dispersal Rates 22 23 24 2

Measuring Dispersal Rates 26 27 28

Expanding Populations (Anthropogenic Factors) European Starling (Sturnus vulgaris) 12

Expanding Populations (Anthrogenic Factors) European Honeybee Hybrid: Africanized Honey Bee African Honeybee Queen

Expanding Populations (Anthrogenic Factors) Africanized Honey Bee Fig. 10.1 in Molles 2006

Expanding Populations (Anthrogenic Factors) Green Alga Pest: Caulerpa

Expanding Populations (Anthrogenic Factors) Jacques Cousteau Institue (Monaco)

Eurasian Collared Dove: Introduction into Bahamas: mid-1970s Expanding Populations: Anthropogenic Factors Eurasian Collared Dove: Introduction into Bahamas: mid-1970s 2

Expanding Populations (NON-Anthropogenic Factors) Eurasian Collared Dove: Spread into Europe from Turkey after 1900 Fig. 10.3 in Molles 2006

Expanding Populations: Non-Anthropogenic Factors 10 11 12 Mechanism: Natal Dispersal

Rates of Expansion Fig. 10.5 in Molles 2006

Dispersal in Response to Climate Change Eastern Hemlock (Tsuga canadensis) Sugar Maple (Acer saccharum) 13 14

~ 20,000 Years Ago

Dispersal in Response to Climate Change Fig. 10.6 in Molles 2006

DISPERSAL: Response to Short-Term Changes in Food Abundance European Kestrel (Falco tinnunculus) Voles (Microtis sp.)

NUMERICAL RESPONSE Fig. 10.7 in Molles 2006 Change in Predator Population Density In Response to Prey Population Density Fig. 10.7 in Molles 2006

NUMERICAL RESPONSE MECHANISM: Increased Reproduction OR Increased Dispersal 15 16

Metapopulation (Subpopulations living on Habitat Patches connected by Exchange of Individuals among Patches) 18 Rocky Mountain Parnassian Butterfly (Parnassius smintheus) 19

18 20 Alpine Meadow Habitat

Patch Size and Population Density 22 Fig. 10.11 in Molles 2006

Metapopulations and Conservation Management

7 http://io.uwinnipeg.ca/~simmons/16cm05/1116/31-08-Pilobolus.jpg 1 http://www.columbia.edu/itc/cerc/danoff-burg/invasion_bio/ inv_spp_summ/petromyzon_marinus5.JPG 2 http://flickr.com/photos/clbrannan/434745581/&usg=__TO6bcIHgjW65pqa XDwW_0acrf2Y=&h=375&w=500&sz=95&hl=en&start=20&tbnid=ohqI0m QF-Py3IM:&tbnh=98&tbnw=130&prev=/images%3Fq%3Dturtle%2Bnotched %2Bshell%26gbv%3D2%26hl%3Den%26sa%3DG 3 http://www.tiem.utk.edu/~mmfuller/WebDocs/HTMLfiles/collared-dove.html &usg=__TAlqcRFEO2Ln-BJiQeXqY7S6q-w=&h=629&w=579&sz=140&hl=en& start=29&um=1&tbnid=-4in4-eY61RRpM:&tbnh=137&tbnw=126&prev=/images %3Fq%3Deurasian%2Bcollared%2Bdistribution%2Bunited%2Bstates%26start %3D20%26ndsp%3D20%26um%3D1%26hl%3Den%26sa%3DN 4 http://parish-wildlife.org.uk/images/Pictures/Visits/Bealsmill/fox%20poo.jpg 5 http://www.ontariowildflower.com/images/common_burdock_seed.jpg 6 http://www.finchester.org/dogs/dog_diary/uploaded_images/CRW_3865BurIn Fur_cn-797464.jpg 7 http://io.uwinnipeg.ca/~simmons/16cm05/1116/31-08-Pilobolus.jpg 8 http://bugs.bio.usyd.edu.au/Mycology/images/Topics/Animal_Interactions/ Pilobolus2.jpg

10 http://www.hamiltonnature.org/birds/images/CollaredDove1.jpg 9 http://fungalgenomes.org/blog/wpcontent/uploads/2008/09/pone-03-09-moneycut.jpg 10 http://www.hamiltonnature.org/birds/images/CollaredDove1.jpg 11 http://farm4.static.flickr.com/3122/3122330699_0bb43a42c0.jpg 12 http://www.le.ac.uk/ge/genie/vgec/images/bacteria.jpg 13 http://newsimg.bbc.co.uk/media/images/42906000/jpg/_42906379_6.jpg