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Chapter 10: Population Dynamics 13 AB C D Age Structure Metapopulation Dispersal Survivorship
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N t = N o e rt E) Population Growth Exponential GrowthLogistic Growth
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1 2 Extreme Population Growth I
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3 ZEBRA MUSSEL Native to the Streams of Southern Russia
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4 Zebra Mussel Distribution First Detected in US 1988
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Reasons? Consequences?
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Extreme Population Growth II
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1 Sea Lamprey Invasion
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(First Noted in Great Lakes in 1830s) Erie Canal Weiland Canal
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Lamprey and Lake Trout Populations http://www.nature.com/nchembio/journal/v1/n6/images/nchembio1105-316-F1.gif Lampricides
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Other Invasive Species in North America “Rock Snot” Diatom Didymospehnia geminata Eurasian Collared Dove
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Other Invasive Species in North America Africanized Honeybee Salt Cedar (Tamarix sp.)
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5 Chinch Bug (Blissus leucopterus) Extreme Population Growth III (Native Species)
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Fig. 14-10 in Ricklefs 2000
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Populations are Dynamic!! 7 What factors contribute to changing population size?
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N t+1 = N t + B + I - D - E Factors that Influence Population Size
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Rates of Population Change
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Estimating Rates of Population Change: N t N t
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= dN f (b, d, i, e) dt Quantifying Rates of Population Change (dN / dt)
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8 9 b d
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10 Quantifying Rates of Population Change (dN / dt) i e
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Fig. 10.2 in Molles 2008 “The Wild, Wacky World of Dispersal”
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Dispersal: Animal Vectors 4 5 5
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Dispersal: Explosive 7 Zygomycete Fungus: Pilobolus 8
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Measuring Dispersal Rates 22 23 24 2
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Measuring Dispersal Rates 26 27 28
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Measuring Dispersal Rates
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11 12 Dispersal: Natal
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Fig. 10.3 in Molles 2006 Dispersal: Natal Eurasian Collared Dove: Spread into Europe from Turkey after 1900
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10 11 12 Dispersal: Natal
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Sugar Maple (Acer saccharum) 13 Eastern Hemlock (Tsuga canadensis) 14 Dispersal in Response to Climate Change North America (~ 20,000 Years Ago)
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Fig. 10.8 in Molles 2008 Dispersal in Response to Climate Change
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Voles (Microtis sp.) European Kestrel (Falco tinnunculus) DISPERSAL: Response to Short-Term Changes in Food Abundance
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Fig. 10.7 in Molles 2006 NUMERICAL RESPONSE Change in Predator Population Density In Response to Prey Population Density
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Dispersal: Drift Fremont Cottonwood
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Fig. 10.8 in Molles 2008 Nerita latissima Pacific Ocean Dispersal: Drift Why aren’t Populations Depleted?
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Fig. 10.9 in Molles 2008 Rio Claro River (Costa Rica) Pacific Ocean Upstream Movement: Migrating and Stationary Populations
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Fig. 10.9 in Molles 2008 Rio Claro River (Costa Rica) Pacific Ocean Nerita latissima Colonization Cycle
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Expanding Populations (Anthropogenic Factors) 12 European Starling (Sturnus vulgaris)
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European Honeybee African Honeybee Queen Hybrid: Africanized Honey Bee Expanding Populations (Anthrogenic Factors) Apis melifera
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Fig. 10.1 in Molles 2008 Expanding Populations (Anthrogenic Factors) Africanized Honey Bee
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Green Alga Pest: Caulerpa Expanding Populations (Anthrogenic Factors)
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Jacques Cousteau Institute (Monaco) Expanding Populations (Anthrogenic Factors)
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Expanding Populations: Anthropogenic Factors 2 Eurasian Collared Dove: Introduction into Bahamas: mid-1970s
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Fig. 10.5 in Molles 2006 Rates of Expansion
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Voles (Microtis sp.) European Kestrel (Falco tinnunculus) DISPERSAL: Response to Short-Term Changes in Food Abundance
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Fig. 10.7 in Molles 2006 NUMERICAL RESPONSE Change in Predator Population Density In Response to Prey Population Density Voles (Microtis sp.) European Kestrel (Falco tinnunculus)
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15 16 Increased ReproductionIncreased Dispersal NUMERICAL RESPONSE MECHANISM: OR
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18 Metapopulation 19 (Subpopulations living on Habitat Patches connected by Exchange of Individuals among Patches) Rocky Mountain Parnassian Butterfly (Parnassius smintheus)
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20 18 Alpine Meadow Habitat
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Patch Size and Population Density 22 Fig. 10.11 in Molles 2008 (Butteflies More Likely to Disperse from Large than Small Patches) (Patch Size has Decreased by 77% since 1952)
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Metapopulations and Conservation Management
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1 http://www.columbia.edu/itc/cerc/danoff-burg/invasion_bio/http://www.columbia.edu/itc/cerc/danoff-burg/invasion_bio/ inv_spp_summ/petromyzon_marinus5.JPG 2 http://flickr.com/photos/clbrannan/434745581/&usg=__TO6bcIHgjW65pqahttp://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.htmlhttp://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_3865BurInhttp://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/http://bugs.bio.usyd.edu.au/Mycology/images/Topics/Animal_Interactions/ Pilobolus2.jpg
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9 http://fungalgenomes.org/blog/wpcontent/uploads/2008/09/pone-03- 09-moneycut.jpghttp://fungalgenomes.org/blog/wpcontent/ 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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