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Chapter 10: Population Dynamics
13
A B
C D
12
Chapter 10: Population Dynamics
E
Nt = Noertt
Nt = No
1 2
3
4
Consequences? Why?
Sea Lamprey Invasion
1
Sea Lamprey Invasion
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
9
b
d
DISPERSAL
i - immigration
e - emmigration
10
=N f (b, d, i, e)
Fig. 10.2 in Molles 2006
“The Wild, Wacky World of Dispersal”
Dispersal: Drift
Dispersal: Drift
Fremont Cottonwood
Dispersal: Animal Vectors
4
5
5
Dispersal: Explosive7
Zygomycete Fungus: Pilobolus
8
1112
Dispersal: Natal
Measuring Dispersal Rates22
23
24
2
Measuring Dispersal Rates26
27
28
Expanding Populations(Anthropogenic Factors)
12
European Starling (Sturnus vulgaris)
European Honeybee
African Honeybee Queen
Hybrid: Africanized Honey Bee
Expanding Populations (Anthrogenic Factors)
Fig. 10.1 in Molles 2006
Expanding Populations (Anthrogenic Factors)
Africanized Honey Bee
Green Alga Pest: Caulerpa
Expanding Populations (Anthrogenic Factors)
Jacques Cousteau Institue (Monaco)
Expanding Populations (Anthrogenic Factors)
Expanding Populations: Anthropogenic Factors
2Eurasian Collared Dove:
Introduction into Bahamas: mid-1970s
Fig. 10.3 in Molles 2006
Expanding Populations (NON-Anthropogenic Factors)
Eurasian Collared Dove:Spread into Europe from Turkey after 1900
10
11 12
Expanding Populations: Non-Anthropogenic Factors
Mechanism: Natal Dispersal
Fig. 10.5 in Molles 2006
Rates of Expansion
Sugar Maple (Acer saccharum)
13
Eastern Hemlock (Tsuga canadensis)
14
Dispersal in Response to Climate Change
~ 20,000 Years Ago
Fig. 10.6 in Molles 2006
Dispersal in Response to Climate Change
Voles (Microtis sp.)European Kestrel (Falco tinnunculus)
DISPERSAL: Response to Short-Term Changes in Food Abundance
Fig. 10.7 in Molles 2006
NUMERICAL RESPONSEChange in Predator Population Density In Response to Prey Population Density
1516
Increased Reproduction Increased Dispersal
NUMERICAL RESPONSE MECHANISM:
OR
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Metapopulation
19
(Subpopulations living on Habitat Patches connected by Exchange of Individuals among Patches)
Rocky Mountain Parnassian Butterfly(Parnassius smintheus)
20
18
Alpine Meadow Habitat
Patch Size and Population Density
22
Fig. 10.11 in Molles 2006
Metapopulations and Conservation Management
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=ohqI0mQF-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_3865BurInFur_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
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
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